[roll] Update of 3p packages for Flutter roll
Change-Id: Ia16bcb3f127c6a31433e6e29dbcb84b82b00268b
diff --git a/build_daemon/BUILD.gn b/build_daemon/BUILD.gn
index 43ca206..4401942 100644
--- a/build_daemon/BUILD.gn
+++ b/build_daemon/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for build_daemon-0.4.0
+# This file is generated by importer.py for build_daemon-0.4.1
import("//build/dart/dart_library.gni")
diff --git a/build_daemon/CHANGELOG.md b/build_daemon/CHANGELOG.md
index f42bfd7..c461359 100644
--- a/build_daemon/CHANGELOG.md
+++ b/build_daemon/CHANGELOG.md
@@ -1,11 +1,16 @@
+## 0.4.1
+
+- Support closing a daemon client.
+- Fix a null set bug in the build target manager.
+
## 0.4.0
- Replace the client log stream with an optional logHandler. This simplifies the
- logging logic and prevents the need for the client to print to stdio.
+ logging logic and prevents the need for the client to print to stdio.
## 0.3.0
-- Forward daemon output while starting up / connecting.
+- Forward daemon output while starting up / connecting.
## 0.2.3
diff --git a/build_daemon/lib/client.dart b/build_daemon/lib/client.dart
index 43640cd..05ee987 100644
--- a/build_daemon/lib/client.dart
+++ b/build_daemon/lib/client.dart
@@ -102,6 +102,8 @@
_channel.sink.add(jsonEncode(_serializers.serialize(request)));
}
+ Future<void> close() => _channel.sink.close();
+
static Future<BuildDaemonClient> connect(
String workingDirectory, List<String> daemonCommand,
{Serializers serializersOverride,
diff --git a/build_daemon/lib/src/managers/build_target_manager.dart b/build_daemon/lib/src/managers/build_target_manager.dart
index f411372..cca2214 100644
--- a/build_daemon/lib/src/managers/build_target_manager.dart
+++ b/build_daemon/lib/src/managers/build_target_manager.dart
@@ -22,22 +22,23 @@
bool Function(BuildTarget, Iterable<WatchEvent>) shouldBuild;
- bool get isEmpty => _buildTargets.isEmpty;
-
- Set<BuildTarget> get targets => _buildTargets.keys.toSet();
-
- Set<WebSocketChannel> channels(BuildTarget target) => _buildTargets[target];
-
BuildTargetManager(
{bool Function(BuildTarget, Iterable<WatchEvent>) shouldBuildOverride})
: shouldBuild = shouldBuildOverride ?? _shouldBuild;
+ bool get isEmpty => _buildTargets.isEmpty;
+
+ Set<BuildTarget> get targets => _buildTargets.keys.toSet();
+
void addBuildTarget(BuildTarget target, WebSocketChannel channel) {
_buildTargets
.putIfAbsent(target, () => Set<WebSocketChannel>())
.add(channel);
}
+ Set<WebSocketChannel> channels(BuildTarget target) =>
+ _buildTargets[target] ?? Set();
+
void removeChannel(WebSocketChannel channel) =>
_buildTargets = Map.fromEntries(_buildTargets.entries
.map((e) => MapEntry(e.key, e.value..remove(channel)))
diff --git a/build_daemon/lib/src/server.dart b/build_daemon/lib/src/server.dart
index 797a678..fa563f5 100644
--- a/build_daemon/lib/src/server.dart
+++ b/build_daemon/lib/src/server.dart
@@ -30,7 +30,6 @@
HttpServer _server;
DaemonBuilder _builder;
- final _channels = Set<WebSocketChannel>();
// Channels that are interested in the current build.
var _interestedChannels = Set<WebSocketChannel>();
@@ -57,8 +56,6 @@
Future<int> listen() async {
var handler = webSocketHandler((WebSocketChannel channel) async {
- _channels.add(channel);
-
channel.stream.listen((message) async {
dynamic request;
try {
@@ -73,7 +70,6 @@
await _build(_buildTargetManager.targets, <WatchEvent>[]);
}
}, onDone: () {
- _channels.remove(channel);
_removeChannel(channel);
});
});
diff --git a/build_daemon/pubspec.yaml b/build_daemon/pubspec.yaml
index bdcfa0c..43f1976 100644
--- a/build_daemon/pubspec.yaml
+++ b/build_daemon/pubspec.yaml
@@ -1,5 +1,5 @@
name: build_daemon
-version: 0.4.0
+version: 0.4.1
description: A daemon for running Dart builds.
author: Dart Team <misc@dartlang.org>
homepage: https://github.com/dart-lang/build/tree/master/build_daemon
@@ -26,4 +26,4 @@
mockito: ^4.0.0
test: ^1.3.3
test_descriptor: ^1.1.1
- uuid: ^1.0.3
+ uuid: ^2.0.0
diff --git a/build_modules/BUILD.gn b/build_modules/BUILD.gn
index 01b4a87..acbf941 100644
--- a/build_modules/BUILD.gn
+++ b/build_modules/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for build_modules-1.0.7+2
+# This file is generated by importer.py for build_modules-1.0.8
import("//build/dart/dart_library.gni")
diff --git a/build_modules/CHANGELOG.md b/build_modules/CHANGELOG.md
index c9846d8..477171a 100644
--- a/build_modules/CHANGELOG.md
+++ b/build_modules/CHANGELOG.md
@@ -1,16 +1,21 @@
+## 1.0.8
+
+- Don't follow `dart.library.isolate` conditional imports for the DDC
+ platform.
+
## 1.0.7+2
-- Update `dart2js` snapshot arguments for upcoming SDK.
+- Update `dart2js` snapshot arguments for upcoming SDK.
## 1.0.7+1
-- Fix broken release by updating `dart2js` worker and restricting sdk version.
+- Fix broken release by updating `dart2js` worker and restricting sdk version.
## 1.0.7
- Explicitly skip dart-ext uris during module creation.
- Filed Issue #2047 to track real support for native extensions.
-- Run workers with mode `detachedWithStdio` if no terminal is connected.
+- Run workers with mode `detachedWithStdio` if no terminal is connected.
## 1.0.6
diff --git a/build_modules/lib/src/platform.dart b/build_modules/lib/src/platform.dart
index 8857ac0..7f64f32 100644
--- a/build_modules/lib/src/platform.dart
+++ b/build_modules/lib/src/platform.dart
@@ -18,7 +18,6 @@
'html',
'html_common',
'indexed_db',
- 'isolate',
'js',
'js_util',
'math',
diff --git a/build_modules/pubspec.yaml b/build_modules/pubspec.yaml
index 830aaf2..a9fe227 100644
--- a/build_modules/pubspec.yaml
+++ b/build_modules/pubspec.yaml
@@ -1,5 +1,5 @@
name: build_modules
-version: 1.0.7+2
+version: 1.0.8
description: Builders for Dart modules
author: Dart Team <misc@dartlang.org>
homepage: https://github.com/dart-lang/build/tree/master/build_modules
diff --git a/build_runner/BUILD.gn b/build_runner/BUILD.gn
new file mode 100644
index 0000000..ee05fee
--- /dev/null
+++ b/build_runner/BUILD.gn
@@ -0,0 +1,48 @@
+# This file is generated by importer.py for build_runner-1.2.8
+
+import("//build/dart/dart_library.gni")
+
+dart_library("build_runner") {
+ package_name = "build_runner"
+
+ # This parameter is left empty as we don't care about analysis or exporting
+ # these sources outside of the tree.
+ sources = []
+
+ disable_analysis = true
+
+ deps = [
+ "//third_party/dart-pkg/pub/shelf_web_socket",
+ "//third_party/dart-pkg/pub/code_builder",
+ "//third_party/dart-pkg/pub/watcher",
+ "//third_party/dart-pkg/pub/pubspec_parse",
+ "//third_party/dart-pkg/pub/meta",
+ "//third_party/dart-pkg/pub/io",
+ "//third_party/dart-pkg/pub/build_config",
+ "//third_party/dart-pkg/pub/pub_semver",
+ "//third_party/dart-pkg/pub/graphs",
+ "//third_party/dart-pkg/pub/web_socket_channel",
+ "//third_party/dart-pkg/pub/yaml",
+ "//third_party/dart-pkg/pub/build",
+ "//third_party/dart-pkg/pub/dart_style",
+ "//third_party/dart-pkg/pub/build_runner_core",
+ "//third_party/dart-pkg/pub/stack_trace",
+ "//third_party/dart-pkg/pub/pedantic",
+ "//third_party/dart-pkg/pub/build_daemon",
+ "//third_party/dart-pkg/pub/shelf",
+ "//third_party/dart-pkg/pub/glob",
+ "//third_party/dart-pkg/pub/args",
+ "//third_party/dart-pkg/pub/http_multi_server",
+ "//third_party/dart-pkg/pub/collection",
+ "//third_party/dart-pkg/pub/js",
+ "//third_party/dart-pkg/pub/mime",
+ "//third_party/dart-pkg/pub/timing",
+ "//third_party/dart-pkg/pub/path",
+ "//third_party/dart-pkg/pub/pool",
+ "//third_party/dart-pkg/pub/logging",
+ "//third_party/dart-pkg/pub/crypto",
+ "//third_party/dart-pkg/pub/stream_transform",
+ "//third_party/dart-pkg/pub/build_resolvers",
+ "//third_party/dart-pkg/pub/async",
+ ]
+}
diff --git a/build_runner/CHANGELOG.md b/build_runner/CHANGELOG.md
new file mode 100644
index 0000000..4fdfe47
--- /dev/null
+++ b/build_runner/CHANGELOG.md
@@ -0,0 +1,760 @@
+## 1.2.8
+
+- Fix issue where daemon command wouldn't properly shutdown.
+- Allow running when the root package, or a path dependency, is named `test`.
+
+## 1.2.7
+
+- Fix issue where daemon command would occasionally color a log.
+
+## 1.2.6
+
+- Prevent terminals being launched when running the daemon command on Windows.
+- No longer assumeTty when logging through the daemon command.
+- Update `build_daemon` to version `0.4.0`.
+- Update `build_runner_core` to version `2.0.3`.
+- Ensure the daemon command always exits.
+
+## 1.2.5
+
+- Fix a bug with the build daemon where the output options were ignored.
+
+## 1.2.4
+
+- Update `build_resolvers` to version `1.0.0`.
+
+## 1.2.3
+
+- Fix a bug where changing between `--live-reload` and `--hot-reload` might not
+ work due to the etags for the injected JS not changing when they should.
+
+## 1.2.2
+
+- Change the format of Build Daemon messages.
+- Build Daemon asset server now properly waits for build results.
+- Build Daemon now properly signals the start of a build.
+- Fix path issues with Daemon command under Windows.
+
+## 1.2.1
+
+- Update `package:build_runner_core` to version `2.0.1`.
+
+## 1.2.0
+
+- Support building through `package:build_daemon`.
+- Update `package:build_runner_core` to version `2.0.0`.
+
+## 1.1.3
+
+- Update to `package:graphs` version `0.2.0`.
+- Fix an issue where when running from source in watch mode the script would
+ delete itself when it shouldn't.
+- Add digest string to the asset graph visualization.
+- Added a filter box to the asset graph visualization.
+- Allow `build` version `1.1.x`.
+
+## 1.1.2
+
+- Improve error message when the generated build script cannot be parsed or
+ compiled and exit with code `78` to indicate that there is a problem with
+ configuration in the project or a dependency's `build.yaml`.
+
+## 1.1.1
+
+### Bug Fixes
+
+- Handle re-snapshotting the build script on SDK updates.
+- Suppress header for the `Bootstrap` logger.
+
+## 1.1.0
+
+### New Features
+
+- The build script will now be ran from snapshot, which improves startup times.
+- The build script will automatically re-run itself when the build script is
+ changed, instead of requiring the user to re-run it manually.
+
+## 1.0.0
+
+### Breaking Changes
+
+- Massive cleanup of the public api. The only thing exported from this package
+ is now the `run` method. The goal is to reduce the surface area in order to
+ stabilize this package, since it is directly depended on by all users.
+ - Removed all exports from build_runner_core, if you are creating a custom
+ build script you will need to import build_runner_core directly and add a
+ dependency on it.
+ - Stopped exporting the `build` and `watch` functions directly, as well as the
+ `ServeHandler`.
+ - If this has broken your use case please file an issue on the package and
+ request that we export the api you were using previously. These will be
+ considered on an individual basis but the bar for additional exports will be
+ high.
+- Removed support for the --[no-]assume-tty command line argument as it is no
+ longer needed.
+
+## 0.10.3
+
+- Improve performance tracking and visualization using the `timing` package.
+- Handle bad asset graph in the `clean` command.
+
+## 0.10.2
+
+- Added `--hot-reload` cli option and appropriate functionality.
+ See [hot-module-reloading](../docs/hot_module_reloading.md) for more info.
+- Removed dependency on cli_util.
+
+## 0.10.1+1
+
+- Added better error handling when a socket is already in use in `serve` mode.
+
+## 0.10.1
+
+- Added `--live-reload` cli option and appropriate functionality
+- Migrated glob tracking to a specialized node type to fix dart-lang/build#1702.
+
+## 0.10.0
+
+### Breaking Changes
+
+- Implementations of `BuildEnvironment` must now implement the `finalizeBuild`
+ method. There is a default implementation if you extend `BuildEnvironment`
+ that is a no-op.
+ - This method is invoked at the end of the build that allows you to do
+ arbitrary additional work, such as creating merged output directories.
+- The `assumeTty` argument on `IOEnvironment` has moved to a named argument
+ since `null` is an accepted value.
+- The `outputMap` field on `BuildOptions` has moved to the `IOEnvironment`
+ class.
+
+### New Features/Updates
+
+- Added a `outputSymlinksOnly` option to `IOEnvironment` constructor, that
+ causes the merged output directories to contain only symlinks, which is much
+ faster than copying files.
+- Added the `FinalizedAssetView` class which provides a list of all available
+ assets to the `BuildEnvironment` during the build finalization phase.
+ - `outputMap` has moved from `BuildOptions` to this constructor, as a named
+ argument.
+- The `OverridableEnvironment` now supports overriding the new `finalizeBuild`
+ api.
+- The number of concurrent actions per phase is now limited (currently to 16),
+ which should help with memory and cpu usage for large builds.
+
+## 0.9.2
+
+- Changed the default file caching logic to use an LRU cache.
+
+## 0.9.1+1
+
+- Increased the upper bound for the sdk to `<3.0.0`.
+
+## 0.9.1
+
+- The hash dir for the asset graph under `.dart_tool/build` is now based on a
+ relative path to the build script instead of the absolute path.
+ - This enables `.dart_tool/build` directories to be reused across different
+ computers and directories for the same project.
+
+## 0.9.0
+
+### New Features
+
+- Added the `--log-performance <dir>` option which will dump performance
+ information to `<dir>` after each build.
+- The `BuildPerformance` class is now serializable, it has a `fromJson`
+ constructor and a `toJson` instance method.
+- Added support for `global_options` in `build.yaml` of the root package.
+- Allow overriding the default `Resolvers` implementation.
+- Allows building with symlinked files. Note that changes to the linked files
+ will not trigger rebuilds in watch or serve mode.
+
+### Breaking changes
+
+- `BuildPhasePerformance.action` has been replaced with
+ `BuildPhasePerformance.builderKeys`.
+- `BuilderActionPerformance.builder` has been replaced with
+ `BuilderActionPerformance.builderKey`.
+- `BuildResult` no longer has an `exception` or `stackTrace` field.
+- The 'test' command through `run` will no longer set an exit code. All manual
+ build scripts which call `run` should use the `Future<int>` return to set the
+ exit code for the process.
+- Dropped `failOnSevere` arguments and `--fail-on-severe` flag. Severe logs are
+ always considered failing.
+- Severe level logs now go to `stdout` along with other logs rather than
+ `stderr`. Uncaught exceptions from the `build_runner` system itself still go
+ to `stderr`.
+
+## Other
+
+- Updated to the latest camel case constants from the sdk.
+- Minimum sdk version is now `>=2.0.0-dev.61`.
+
+## 0.8.10
+
+- All builders with `build_to: source` will now be ran regardless of which
+ directory is currently being built, see
+ https://github.com/dart-lang/build/issues/1454 for context.
+- `build` will now throw instead of returning a failed build result if nothing
+ was built.
+- Improve error message when a dependency has a bad `build.yaml` with a missing
+ dependency.
+- Sources that are not a part of a `target` will no longer appear in the asset
+ graph, so they will not be readable or globbable.
+- Updated the generated build script to not rely on json encode/decode for the
+ builder options object. Instead it now directly inlines a map literal.
+
+## 0.8.9
+
+- Added support for building only specified top level directories.
+ - The `build`, `watch` commands support positional arguments which are the
+ directories to build. For example, `pub run build_runner build web` will
+ only build the `web` directory.
+ - The `serve` command treats positional args as it did before, except it will
+ only build the directories you ask it to serve.
+ - The `test` command will automatically only build the `test` directory.
+ - If using the `-o` option, with the `<dir-to-build>:<output-dir>` syntax,
+ then the `<dir-to-build>` will be added to the list of directories to build.
+ - If additional directories are supplied with positional arguments, then
+ those will also be built.
+- Update to latest analyzer and build packages.
+- Updated the `serve` logic to only serve files which were part of the actual
+ build, and not stale assets. This brings the semantics exactly in line with
+ what would be copied to the `-o` output directory.
+
+## 0.8.8
+
+- Improve search behavior on the `/$graph` page. Users can now query for
+ paths and `AssetID` values – `pkg_name|lib/pkg_name.dart`.
+- Commands that don't support trailing args will now appropriately fail with a
+ usage exception.
+- Fix a bug where some rebuilds would not happen after adding a new file that
+ has outputs which were missing during the previous build.
+- Fix a bug where failing actions which are no longer required can still cause
+ the overall build to fail.
+
+## 0.8.7
+
+- Improve error handling on the `/$graph` page.
+- Support the latest `package:builde`
+
+## 0.8.6
+
+- Forward default options for `PostProcessBuilder`s in the generated build
+ script.
+- If a build appears to be not making progress (no actions completed for 15
+ seconds), then a warning will now be logged with the pending actions.
+- Now fail when a build is requested which does not build anything.
+- Clean up some error messages.
+
+## 0.8.5
+
+- Add log message for merged output errors.
+
+## 0.8.4
+
+- Log the number of completed actions on successful builds.
+- Support the new `isRoot` field for `BuilderOptions` so that builders can
+ do different things for the root package.
+- Deprecated `PostProcessBuilder` and `PostProcessBuildStep`. These should be
+ imported from `package:build` instead.
+
+## 0.8.3
+
+- Clean and summarize stack traces printed with `--verbose`.
+- Added a `clean` command which deletes generated to source files and the entire
+ build cache directory.
+- Bug Fix: Use the same order to compute the digest of input files to a build
+ step when writing it as when comparing it. Previously builds would not be
+ pruned as efficiently as they can be because the inputs erroneously looked
+ different.
+
+## 0.8.2+2
+
+- The `.packages` file is now always created in the root of the output directory
+ instead of under each top level directory.
+
+## 0.8.2+1
+
+- Bug Fix: Correctly parse Window's paths with new `--output` semantics.
+
+## 0.8.2
+
+- Allow passing multiple `--output` options. Each option will be split on
+ `:`. The first value will be the root input directory, the second value will
+ be the output directory. If no delimeter is provided, all resources
+ will be copied to the output directory.
+- Allow deleting files in the post process build step.
+- Bug Fix: Correctly include the default whitelist when multiple targets
+ without include are provided.
+- Allow logging from within a build factory.
+- Allow serving assets from successful build steps if the overall build fails.
+- Add a `--release` flag to choose the options from `release_options` in
+ `build.yaml`. This should replace the need to use `--config` pointing to a
+ release version of `build.yaml`.
+
+## 0.8.1
+
+- Improved the layout of `/$perf`, especially after browser window resize.
+- `pub run build_runner` exits with a error when invoked with an unsupported
+ command.
+- Bug Fix: Update outputs in merged directory for sources which are not used
+ during the build. For example if `web/index.html` is not read to produce any
+ generated outputs changes to this file will now get picked up during `pub run
+ build_runner watch --output build`.
+- Don't allow a thrown exception from a Builder to take down the entire build
+ process - instead record it as a failed action. The overall build will still
+ be marked as a failure, but it won't crash the process.
+
+## 0.8.0
+
+### New Features
+
+- Added the new `PostProcessBuilder` class. These are not supported in bazel,
+ and are different than a normal `Builder` in some fundamental ways:
+ - They don't have to declare output extensions, and can output any file as
+ long as it doesn't conflict with an existing one. This is only checked at
+ build time.
+ - They can only read their primary input.
+ - They will not cause optional actions to run - they will only run on assets
+ that were built as a part of the normal build.
+ - They can not be optional themselves, and can only output to cache.
+ - Because they all run in a single phase, after other builders, none of their
+ outputs can be used as inputs to any actions.
+- Added `applyPostProccess` method which takes `PostProcessBuilderFactory`s
+ instead of `BuilderFactory`s.
+
+### Breaking Changes
+
+- `BuilderApplication` now has a `builderActionFactories` getter instead of a
+ `builderFactories` getter.
+- The default constructor for `BuilderApplication` has been replaced with
+ `BuilderApplication.forBuilder` and
+ `BuilderApplication.forPostProcessBuilder`.
+
+## 0.7.14
+
+- Warn when using `--define` or `build.yaml` configuration for invalid builders.
+
+## 0.7.13+1
+
+- Fix a concurrent modification error when using `listAssets` when an asset
+ could be written.
+
+## 0.7.13
+
+- Fix a bug where a chain of `Builder`s would fail to run on some outputs from
+ previous steps when the generated asset did not match the target's `sources`.
+- Added support for serving on IPv4 loopback when the server hostname is
+ 'localhost' (the default).
+- Added support for serving on any connection (both IPv4 and IPv6) when the
+ hostname is 'any'.
+- Improved stdout output.
+
+## 0.7.12
+
+- Added the `--log-requests` flag to the `serve` command, which will log all
+ requests to the server.
+- Build actions using `findAssets` will be more smartly invalidated.
+- Added a warning if using `serve` mode but no directories were found to serve.
+- The `--output` option now only outputs files that were required for the latest
+ build. Previously when switching js compilers you could end up with ddc
+ modules in your dart2js output, even though they weren't required. See
+ https://github.com/dart-lang/build/issues/1033.
+- The experimental `create_merged_dir` binary is now removed, it can't be easily
+ supported any more and has been replaced by the `--output` option.
+- Builders which write to `source` are no longer guaranteed to run before
+ builders which write to `cache`.
+- Honors `runs_before` configuration from Builder definitions.
+- Honors `applies_builders` configuration from Builder definitions.
+
+## 0.7.11+1
+
+- Switch to use a `PollingDirectoryWatcher` on windows, which should fix file
+ watching with the `--output` option. Follow along at
+ https://github.com/dart-lang/watcher/issues/52 for more details.
+
+## 0.7.11
+
+- Performance tracking is now disabled by default, and you must pass the
+ `--track-performance` flag to enable it.
+- The heartbeat logger will now log the current number of completed versus
+ scheduled actions, and it will log once a second instead of every 5 seconds.
+- Builds will now be invalidated when the dart SDK is updated.
+- Fixed the error message when missing a build_test dependency but trying to run
+ the `test` command.
+- The build script will now exit on changes to `build.yaml` files.
+
+## 0.7.10+1
+
+- Fix bug where relative imports in a dependencies build.yaml would break
+ all downstream users, https://github.com/dart-lang/build/issues/995.
+
+## 0.7.10
+
+### New Features
+
+- Added a basic performance visualization. When running with `serve` you can
+ now navigate to `/$perf` and get a timeline of all actions. If you are
+ experiencing slow builds (especially incremental ones), you can save the
+ html of that page and attach it to bug reports!
+
+### Bug Fixes
+
+- When using `--output` we will only clean up files we know we previously output
+ to the specified directory. This should allow running long lived processes
+ such as servers in that directory (as long as they don't hold open file
+ handles).
+
+## 0.7.9+2
+
+- Fixed a bug with build to source and watch mode that would result in an
+ infinite build loop, [#962](https://github.com/dart-lang/build/issues/962).
+
+## 0.7.9+1
+
+- Support the latest `analyzer` package.
+
+## 0.7.9
+
+### New Features
+
+- Added command line args to override config for builders globally. The format
+ is `--define "<builder_key>=<option>=<value>"`. As an example, enabling the
+ dart2js compiler for the `build_web_compilers|entrypoint` builder would look
+ like this: `--define "build_web_compilers|entrypoint=compiler=dart2js"`.
+
+### Bug Fixes
+
+- Fixed an issue with mixed mode builds, see
+ https://github.com/dart-lang/build/issues/924.
+- Fixed some issues with exit codes and --fail-on-severe, although there are
+ still some outstanding problems. See
+ https://github.com/dart-lang/build/issues/910 for status updates.
+- Fixed an issue where the process would hang on exceptions, see
+ https://github.com/dart-lang/build/issues/883.
+- Fixed an issue with etags not getting updated for source files that weren't
+ inputs to any build actions, https://github.com/dart-lang/build/issues/894.
+- Fixed an issue with hidden .DS_Store files on mac in the generated directory,
+ https://github.com/dart-lang/build/issues/902.
+- Fixed test output so it will use the compact reporter,
+ https://github.com/dart-lang/build/issues/821.
+
+## 0.7.8
+
+- Add `--config` option to use a different `build.yaml` at build time.
+
+## 0.7.7+1
+
+- Avoid watching hosted dependencies for file changes.
+
+## 0.7.7
+
+- The top level `run` method now returns an `int` which represents an `exitCode`
+ for the command that was executed.
+ - For now we still set the exitCode manually as well but this will likely
+ change in the next breaking release. In manual scripts you should `await`
+ the call to `run` and assign that to `exitCode` to be future-proofed.
+
+## 0.7.6
+
+- Update to package:build version `0.12.0`.
+- Removed the `DigestAssetReader` interface, the `digest` method has now moved
+ to the core `AssetReader` interface. We are treating this as a non-breaking
+ change because there are no known users of this interface.
+
+## 0.7.5+1
+
+- Bug fix for using the `--output` flag when you have no `test` directory.
+
+## 0.7.5
+
+- Add more human friendly duration printing.
+- Added the `--output <dir>` (or `-o`) argument which will create a merged
+ output directory after each build.
+- Added the `--verbose` (or `-v`) flag which enables verbose logging.
+ - Disables stack trace folding and terse stack traces.
+ - Disables the overwriting of previous info logs.
+ - Sets the default log level to `Level.ALL`.
+- Added `pubspec.yaml` and `pubspec.lock` to the whitelist for the root package
+ sources.
+
+## 0.7.4
+
+- Allows using files in any build targets in the root package as sources if they
+ fall outside the hardcoded whitelist.
+- Changes to the root `.packages` file during watch mode will now cause the
+ build script to exit and prompt the user to restart the build.
+
+## 0.7.3
+
+- Added the flag `--low-resources-mode`, which defaults to `false`.
+
+## 0.7.2
+
+- Added the flag `--fail-on-severe`, which defaults to `false`. In a future
+ version this will default to `true`, which means that logging a message via
+ `log.severe` will fail the build instead of just printing to the terminal.
+ This would match the current behavior in `bazel_codegen`.
+- Added the `test` command to the `build_runner` binary.
+
+## 0.7.1+1
+
+- **BUG FIX**: Running the `build_runner` binary without arguments no longer
+ causes a crash saying `Could not find an option named "assume-tty".`.
+
+## 0.7.1
+
+- Run Builders which write to the source tree before those which write to the
+ build cache.
+
+## 0.7.0
+
+### New Features
+
+- Added `toRoot` Package filter.
+- Actions are now invalidated at a fine grained level when `BuilderOptions`
+ change.
+- Added magic placeholder files in all packages, which can be used when your
+ builder doesn't have a clear primary input file.
+ - For non-root packages the placeholder exists at `lib/$lib$`, you should
+ declare your `buildExtensions` like this `{r'$lib$': 'my_output_file.txt'}`,
+ which would result in an output file at `lib/my_output_file.txt` in the
+ package.
+ - For the root package there are also placeholders at `web/$web$` and
+ `test/$test$` which should cover most use cases. Please file an issue if you
+ need additional placeholders.
+ - Note that these placeholders are not real assets and attempting to read them
+ will result in an `AssetNotFoundException`.
+
+### Breaking Changes
+
+- Removed `BuildAction`. Changed `build` and `watch` to take a
+ `List<BuilderApplication>`. See `apply` and `applyToRoot` to set these up.
+- Changed `apply` to take a single String argument - a Builder key from
+ `package:build_config` rather than a separate package and builder name.
+- Changed the default value of `hideOutput` from `false` to `true` for `apply`.
+ With `applyToRoot` the value remains `false`.
+- There is now a whitelist of top level directories that will be used as a part
+ of the build, and other files will be ignored. For now those directories
+ include 'benchmark', 'bin', 'example', 'lib', 'test', 'tool', and 'web'.
+ - If this breaks your workflow please file an issue and we can look at either
+ adding additional directories or making the list configurable per project.
+- Remove `PackageGraph.orderedPackages` and `PackageGraph.dependentsOf`.
+- Remove `writeToCache` argument of `build` and `watch`. Each `apply` call
+ should specify `hideOutput` to keep this behavior.
+- Removed `PackageBuilder` and `PackageBuildActions` classes. Use the new
+ magic placeholder files instead (see new features section for this release).
+
+The following changes are technically breaking but should not impact most
+clients:
+
+- Upgrade to `build_barback` v0.5.0 which uses strong mode analysis and no
+ longer analyzes method bodies.
+- Removed `dependencyType`, `version`, `includes`, and `excludes` from
+ `PackageNode`.
+- Removed `PackageNode.noPubspec` constructor.
+- Removed `InputSet`.
+- PackageGraph instances enforce that the `root` node is the only node with
+ `isRoot == true`.
+
+## 0.6.1
+
+### New Features
+
+- Add an `enableLowResourcesMode` option to `build` and `watch`, which will
+ consume less memory at the cost of slower builds. This is intended for use in
+ resource constrained environments such as Travis.
+- Add `createBuildActions`. After finding a list of Builders to run, and defining
+ which packages need them applied, use this tool to apply them in the correct
+ order across the package graph.
+
+### Deprecations
+
+- Deprecate `PackageGraph.orderedPackages` and `PackageGraph.dependentsOf`.
+
+### Internal Improvements
+
+- Outputs will no longer be rebuilt unless their inputs actually changed,
+ previously if any transtive dependency changed they would be invalidated.
+- Switched to using semantic analyzer summaries, this combined with the better
+ input validation means that, ddc/summary builds are much faster on non-api
+ affecting edits (dependent modules will no longer be rebuilt).
+- Build script invalidation is now much faster, which speeds up all builds.
+
+### Bug Fixes
+
+- The build actions are now checked against the previous builds actions, and if
+ they do not match then a full build is performed. Previously the behavior in
+ this case was undefined.
+- Fixed an issue where once an edge between an output and an input was created
+ it was never removed, causing extra builds to happen that weren't necessary.
+- Build actions are now checked for overlapping outputs in non-checked mode,
+ previously this was only an assert.
+- Fixed an issue where nodes could get in an inconsistent state for short
+ periods of time, leading to various errors.
+- Fixed an issue on windows where incremental builds didn't work.
+
+## 0.6.0+1
+
+### Internal Improvements
+
+- Now using `package:pool` to limit the number of open file handles.
+
+### Bug fixes
+
+- Fixed an issue where the asset graph could get in an invalid state if you
+ aren't setting `writeToCache: true`.
+
+## 0.6.0
+
+### New features
+
+- Added `orderedPackages` and `dependentsOf` utilities to `PackageGraph`.
+- Added the `noPubspec` constructor to `PackageNode`.
+- Added the `PackageBuilder` and `PackageBuildAction` classes. These builders
+ only run once per package, and have no primary input. Outputs must be well
+ known ahead of time and are declared with the `Iterable<String> get outputs`
+ field, which returns relative paths under the current package.
+- Added the `isOptional` field to `BuildAction`. Setting this to `true` means
+ that the action will not run unless some other non-optional action tries to
+ read one of the outputs of the action.
+- **Breaking**: `PackageNode.location` has become `PackageNode.path`, and is
+ now a `String` (absolute path) instead of a `Uri`; this prevents needing
+ conversions to/from `Uri` across the package.
+- **Breaking**: `RunnerAssetReader` interface requires you to implement
+ `MultiPackageAssetReader` and `DigestAssetReader`. This means the
+ `packageName` named argument has changed to `package`, and you have to add the
+ `Future<Digest> digest(AssetId id)` method. While technically breaking most
+ users do not rely on this interface explicitly.
+ - You also no longer have to implement the
+ `Future<DateTime> lastModified(AssetId id)` method, as it has been replaced
+ with the `DigestAssetReader` interface.
+- **Breaking**: `ServeHandler.handle` has been replaced with
+ `Handler ServeHandler.handleFor(String rootDir)`. This allows you to create
+ separate handlers per directory you want to serve, which maintains pub serve
+ conventions and allows interoperation with `pub run test --pub-serve=$PORT`.
+
+### Bug fixes
+
+- **Breaking**: All `AssetReader#findAssets` implementations now return a
+ `Stream<AssetId>` to match the latest `build` package. This should not affect
+ most users unless you are extending the built in `AssetReader`s or using them
+ in a custom way.
+- Fixed an issue where `findAssets` could return declared outputs from previous
+ phases that did not actually output the asset.
+- Fixed two issues with `writeToCache`:
+ - Over-declared outputs will no longer attempt to build on each startup.
+ - Unrecognized files in the cache dir will no longer be treated as inputs.
+- Asset invalidation has changed from using last modified timestamps to content
+ hashes. This is generally much more reliable, and unblocks other desired
+ features.
+
+### Internal changes
+
+- Added `PackageGraphWatcher` and `PackageNodeWatcher` as a wrapper API,
+ including an `AssetChange` class that is now consistently used across the
+ package.
+
+## 0.5.0
+
+- **Breaking**: Removed `buildType` field from `BuildResult`.
+- **Breaking**: `watch` now returns a `ServeHandler` instead of a
+ `Stream<BuildResult>`. Use `ServeHandler.buildResults` to get back to the
+ original stream.
+- **Breaking**: `serve` has been removed. Instead use `watch` and use the
+ resulting `ServeHandler.handle` method along with a server created in the
+ client script to start a server.
+- Prevent reads into `.dart_tool` for more hermetic builds.
+- Bug Fix: Rebuild entire asset graph if the build script changes.
+- Add `writeToCache` argument to `build` and `watch` which separates generated
+ files from the source directory and allows running builders against other
+ packages.
+- Allow the latest version of `package:shelf`.
+
+## 0.4.0+3
+
+- Bug fix: Don't try to delete files generated for other packages.
+
+## 0.4.0+2
+
+- Bug fix: Don't crash after a Builder reads a file from another package.
+
+## 0.4.0+1
+
+- Depend on `build` 0.10.x and `build_barback` 0.4.x
+
+## 0.4.0
+
+- **Breaking**: The `PhaseGroup` class has been replaced with a
+ `List<BuildAction>` in `build`, `watch`, and `serve`. The `PhaseGroup` and
+ `Phase` classes are removed.
+ If your current build has multiple actions in a single phase which are
+ depending on *not* seeing the outputs from other actions in the phase you will
+ need to instead set up the `InputSet`s so that the outputs are filtered out.
+- **Breaking**: The `resolvers` argument has been removed from `build`, `watch`,
+ and `serve`.
+- Allow `package:build` v0.10.x
+
+## 0.3.4+1
+
+- Support the latest release of `build_barback`.
+
+## 0.3.4
+
+- Support the latest release of `analyzer`.
+
+## 0.3.2
+
+- Support for build 0.9.0
+
+## 0.3.1+1
+
+- Bug Fix: Update AssetGraph version so builds can be run without manually
+ deleting old build directory.
+- Bug Fix: Check for unreadable assets in an async method rather than throw
+ synchronously
+
+## 0.3.1
+
+- Internal refactoring of RunnerAssetReader.
+- Support for build 0.8.0
+- Add findAssets on AssetReader implementations
+- Limit Asset reads to those which were available at the start of the phase.
+ This might cause some reads which uses to succeed to fail.
+
+## 0.3.0
+
+### Bug Fixes
+
+- Fixed a race condition bug [175](https://github.com/dart-lang/build/issues/175)
+ that could cause invalid output errors.
+
+### Breaking Changes
+
+- `RunnerAssetWriter` now requires an additional field, `onDelete` which is a
+ callback that must be called synchronously within `delete`.
+
+## 0.2.0
+
+Add support for the new bytes apis in `build`.
+
+### New Features
+
+- `FileBasedAssetReader` and `FileBasedAssetWriter` now support reading/writing
+ as bytes.
+
+### Breaking Changes
+
+- Removed the `AssetCache`, `CachedAssetReader`, and `CachedAssetWriter`. These
+ may come back at a later time if deemed necessary, but for now they just
+ complicate things unnecessarily without proven benefits.
+- `BuildResult#outputs` now has a type of `List<AssetId>` instead of
+ `List<Asset>`, since the `Asset` class no longer exists. Additionally this was
+ wasting memory by keeping all output contents around when it's not generally
+ a very useful thing outside of tests (which retain this information in other
+ ways).
+
+## 0.0.1
+
+- Initial separate release - split off from `build` package.
diff --git a/build_runner/LICENSE b/build_runner/LICENSE
new file mode 100644
index 0000000..82e9b52
--- /dev/null
+++ b/build_runner/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2016, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of Google Inc. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/build_runner/README.md b/build_runner/README.md
new file mode 100644
index 0000000..7910a5a
--- /dev/null
+++ b/build_runner/README.md
@@ -0,0 +1,258 @@
+# build_runner
+
+<p align="center">
+ Standalone generator and watcher for Dart using <a href="https://pub.dartlang.org/packages/build"><code>package:build</code></a>.
+ <br>
+ <a href="https://travis-ci.org/dart-lang/build">
+ <img src="https://travis-ci.org/dart-lang/build.svg?branch=master" alt="Build Status" />
+ </a>
+ <a href="https://github.com/dart-lang/build/labels/package%3A%20build_runner">
+ <img src="https://img.shields.io/github/issues-raw/dart-lang/build/package%3A%20build_runner.svg" alt="Issues related to build_runner" />
+ </a>
+ <a href="https://pub.dartlang.org/packages/build_runner">
+ <img src="https://img.shields.io/pub/v/build_runner.svg" alt="Pub Package Version" />
+ </a>
+ <a href="https://pub.dartlang.org/documentation/build_runner/latest">
+ <img src="https://img.shields.io/badge/dartdocs-latest-blue.svg" alt="Latest Dartdocs" />
+ </a>
+ <a href="https://gitter.im/dart-lang/build">
+ <img src="https://badges.gitter.im/dart-lang/build.svg" alt="Join the chat on Gitter" />
+ </a>
+</p>
+
+The `build_runner` package provides a concrete way of generating files using
+Dart code, outside of tools like `pub`. Unlike `pub serve/build`, files are
+always generated directly on disk, and rebuilds are _incremental_ - inspired by
+tools such as [Bazel][].
+
+> **NOTE**: Are you a user of this package? You may be interested in
+> simplified user-facing documentation, such as our
+> [getting started guide][getting-started-link].
+
+[getting-started-link]: https://goo.gl/b9o2j6
+
+* [Installation](#installation)
+* [Usage](#usage)
+ * [Built-in commands](#built-in-commands)
+ * [Inputs](#inputs)
+ * [Outputs](#outputs)
+ * [Source control](#source-control)
+ * [Publishing packages](#publishing-packages)
+* [Contributing](#contributing)
+ * [Testing](#testing)
+
+## Installation
+
+This package is intended to support development of Dart projects with
+[`package:build`][]. In general, put it under [dev_dependencies][], in your
+[`pubspec.yaml`][pubspec].
+
+```yaml
+dev_dependencies:
+ build_runner:
+```
+
+## Usage
+
+When the packages providing `Builder`s are configured with a `build.yaml` file
+they are designed to be consumed using an generated build script. Most builders
+should need little or no configuration, see the documentation provided with the
+Builder to decide whether the build needs to be customized. If it does you may
+also provide a `build.yaml` with the configuration. See the
+`package:build_config` README for more information on this file.
+
+To have web code compiled to js add a `dev_dependency` on `build_web_compilers`.
+
+### Built-in Commands
+
+The `build_runner` package exposes a binary by the same name, which can be
+invoked using `pub run build_runner <command>`.
+
+The available commands are `build`, `watch`, `serve`, and `test`.
+
+- `build`: Runs a single build and exits.
+- `watch`: Runs a persistent build server that watches the files system for
+ edits and does rebuilds as necessary.
+- `serve`: Same as `watch`, but runs a development server as well.
+ - By default this serves the `web` and `test` directories, on port `8080` and
+ `8081` respectively. See below for how to configure this.
+- `test`: Runs a single build, creates a merged output directory, and then runs
+ `pub run test --precompiled <merged-output-dir>`. See below for instructions
+ on passing custom args to the test command.
+
+#### Command Line Options
+
+All the above commands support the following arguments:
+
+- `--help`: Print usage information for the command.
+- `--assume-tty`: Enables colors and interactive input when the script does not
+ appear to be running directly in a terminal, for instance when it is a
+ subprocess.
+- `--delete-conflicting-outputs`: Assume conflicting outputs in the users
+ package are from previous builds, and skip the user prompt that would usually
+ be provided.
+- `--[no-]fail-on-severe`: Whether to consider the build a failure on an error
+ logged. By default this is false.
+
+Some commands also have additional options:
+
+##### serve
+
+- `--hostname`: The host to run the server on.
+- `--live-reload`: Enables automatic page reloading on rebuilds.
+ Can't be used together with `--hot-reload`.
+- `--hot-reload`: Enables automatic reloading of changed modules on rebuilds.
+ See [hot-module-reloading](../docs/hot_module_reloading.md) for more info.
+ Can't be used together with `--live-reload`.
+
+Trailing args of the form `<directory>:<port>` are supported to customize what
+directories are served, and on what ports.
+
+For example to serve the `example` and `web` directories on ports 8000 and 8001
+you would do `pub run build_runner serve example:8000 web:8001`.
+
+##### test
+
+The test command will forward any arguments after an empty `--` arg to the
+`pub run test` command.
+
+For example if you wanted to pass `-p chrome` you would do
+`pub run build_runner test -- -p chrome`.
+
+### Inputs
+
+Valid inputs follow the general dart package rules. You can read any files under
+the top level `lib` folder any package dependency, and you can read all files
+from the current package.
+
+In general it is best to be as specific as possible with your `InputSet`s,
+because all matching files will be checked against a `Builder`'s
+[`buildExtensions`][build_extensions] - see [outputs](#outputs) for more
+information.
+
+### Outputs
+
+* You may output files anywhere in the current package.
+
+> **NOTE**: When a `BuilderApplication` specifies `hideOutput: true` it may
+> output under the `lib` folder of _any_ package you depend on.
+
+* Builders are not allowed to overwrite existing files, only create new ones.
+* Outputs from previous builds will not be treated as inputs to later ones.
+* You may use a previous `BuilderApplications`'s outputs as an input to a later
+ action.
+
+### Source control
+
+This package creates a top level `.dart_tool` folder in your package, which
+should not be submitted to your source control repository. You can see [our own
+`.gitignore`](https://github.com/dart-lang/build/blob/master/.gitignore) as an
+example.
+
+```git
+# Files generated by dart tools
+.dart_tool
+```
+
+When it comes to _generated_ files it is generally best to not submit them to
+source control, but a specific `Builder` may provide a recommendation otherwise.
+
+It should be noted that if you do submit generated files to your repo then when
+you change branches or merge in changes you may get a warning on your next build
+about declared outputs that already exist. This will be followed up with a
+prompt to delete those files. You can type `l` to list the files, and then type
+`y` to delete them if everything looks correct. If you think something is wrong
+you can type `n` to abandon the build without taking any action.
+
+### Publishing packages
+
+In general generated files **should** be published with your package, but this
+may not always be the case. Some `Builder`s may provide a recommendation for
+this as well.
+
+
+## Legacy Usage
+
+If the generated script does not do everything you need it's possible to
+manually write one. With this approach every package which *uses* a
+[`Builder`][builder] must have it's own script, they cannot be reused
+from other packages. A package which defines a [`Builder`][builder] may have an
+example you can reference, but a unique script must be written for the consuming
+packages as well. You can reference the generated script at
+`.dart_tool/build/entrypoint/build.dart` for an example.
+
+Your script should use one of the following functions defined by this library:
+
+- [**`run`**][run_fn]: Use the same argument parsing as the generated approach.
+- [**`build`**][build_fn]: Run a single build and exit.
+- [**`watch`**][watch_fn]: Continuously run builds as you edit files.
+
+### Configuring
+
+[`run`][run_fn], [`build`][build_fn], and [`watch`][watch_fn] have a required
+argument which is a `List<BuilderApplication>`. These correspond to the
+`BuilderDefinition` class from `package:build_config`. See `apply` and
+`applyToRoot` to create instances of this class. These will be translated into
+actions by crawling through dependencies. The order of this list is important.
+Each Builder may read the generated outputs of any Builder that ran on a package
+earlier in the dependency graph, but for the package it is running on it may
+only read the generated outputs from Builders earlier in the list of
+`BuilderApplication`s.
+
+**NOTE**: Any time you change your build script (or any of its dependencies),
+the next build will be a full rebuild. This is because the system has no way
+of knowing how that change may have affected the outputs.
+
+## Contributing
+
+We welcome a diverse set of contributions, including, but not limited to:
+
+* [Filing bugs and feature requests][file_an_issue]
+* [Send a pull request][pull_request]
+* Or, create something awesome using this API and share with us and others!
+
+For the stability of the API and existing users, consider opening an issue
+first before implementing a large new feature or breaking an API. For smaller
+changes (like documentation, minor bug fixes), just send a pull request.
+
+### Testing
+
+All pull requests are validated against [travis][travis], and must pass. The
+`build_runner` package lives in a mono repository with other `build` packages,
+and _all_ of the following checks must pass for _each_ package.
+
+Ensure code passes all our [analyzer checks][analysis_options]:
+
+```sh
+$ dartanalyzer .
+```
+
+Ensure all code is formatted with the latest [dev-channel SDK][dev_sdk].
+
+```sh
+$ dartfmt -w .
+```
+
+Run all of our unit tests:
+
+```sh
+$ pub run test
+```
+
+[Bazel]: https://bazel.build/
+[`package:build`]: https://pub.dartlang.org/packages/build
+[analysis_options]: https://github.com/dart-lang/build/blob/master/analysis_options.yaml
+
+[builder]: https://www.dartdocs.org/documentation/build/latest/build/Builder-class.html
+[run_fn]: https://www.dartdocs.org/documentation/build_runner/latest/build_runner/run.html
+[build_fn]: https://www.dartdocs.org/documentation/build_runner/latest/build_runner/build.html
+[watch_fn]: https://www.dartdocs.org/documentation/build_runner/latest/build_runner/watch.html
+[builder_application]: https://www.dartdocs.org/documentation/build_runner/latest/build_runner/BuilderApplication-class.html
+[build_extensions]: https://www.dartdocs.org/documentation/build/latest/build/Builder/buildExtensions.html
+
+[travis]: https://travis-ci.org/
+[dev_sdk]: https://www.dartlang.org/install
+[dev_dependencies]: https://www.dartlang.org/tools/pub/dependencies#dev-dependencies
+[pubspec]: https://www.dartlang.org/tools/pub/pubspec
+[file_an_issue]: https://github.com/dart-lang/build/issues/new
+[pull_request]: https://github.com/dart-lang/build/pulls
diff --git a/build_runner/bin/build_runner.dart b/build_runner/bin/build_runner.dart
new file mode 100644
index 0000000..eb1e0af
--- /dev/null
+++ b/build_runner/bin/build_runner.dart
@@ -0,0 +1,87 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:args/args.dart';
+import 'package:args/command_runner.dart';
+import 'package:io/ansi.dart';
+import 'package:io/io.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as p;
+
+import 'package:build_runner/src/build_script_generate/build_script_generate.dart';
+import 'package:build_runner/src/build_script_generate/bootstrap.dart';
+import 'package:build_runner/src/entrypoint/runner.dart';
+import 'package:build_runner/src/logging/std_io_logging.dart';
+
+Future<Null> main(List<String> args) async {
+ // Use the actual command runner to parse the args and immediately print the
+ // usage information if there is no command provided or the help command was
+ // explicitly invoked.
+ var commandRunner = BuildCommandRunner([])
+ ..addCommand(_GenerateBuildScript());
+
+ ArgResults parsedArgs;
+ try {
+ parsedArgs = commandRunner.parse(args);
+ } on UsageException catch (e) {
+ print(red.wrap(e.message));
+ print('');
+ print(e.usage);
+ exitCode = ExitCode.usage.code;
+ return;
+ }
+
+ var commandName = parsedArgs.command?.name;
+
+ if (parsedArgs.rest.isNotEmpty) {
+ print(
+ yellow.wrap('Could not find a command named "${parsedArgs.rest[0]}".'));
+ print('');
+ print(commandRunner.usageWithoutDescription);
+ exitCode = ExitCode.usage.code;
+ return;
+ }
+
+ if (commandName == null || commandName == 'help') {
+ commandRunner.printUsage();
+ return;
+ }
+
+ StreamSubscription logListener;
+ if (commandName == _generateCommand) {
+ exitCode = await commandRunner.runCommand(parsedArgs);
+ return;
+ }
+ logListener = Logger.root.onRecord.listen(stdIOLogListener());
+
+ while ((exitCode = await generateAndRun(args)) == ExitCode.tempFail.code) {}
+ await logListener?.cancel();
+}
+
+const _generateCommand = 'generate-build-script';
+
+class _GenerateBuildScript extends Command<int> {
+ @override
+ final description = 'Generate a script to run builds and print the file path '
+ 'with no other logging. Useful for wrapping builds with other tools.';
+
+ @override
+ final name = _generateCommand;
+
+ @override
+ bool get hidden => true;
+
+ @override
+ Future<int> run() async {
+ var buildScript = await generateBuildScript();
+ File(scriptLocation)
+ ..createSync(recursive: true)
+ ..writeAsStringSync(buildScript);
+ print(p.absolute(scriptLocation));
+ return 0;
+ }
+}
diff --git a/build_runner/bin/graph_inspector.dart b/build_runner/bin/graph_inspector.dart
new file mode 100644
index 0000000..b32ad5a
--- /dev/null
+++ b/build_runner/bin/graph_inspector.dart
@@ -0,0 +1,214 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+import 'package:path/path.dart' as p;
+
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/asset_graph/graph.dart';
+import 'package:build_runner_core/src/asset_graph/node.dart';
+
+AssetGraph assetGraph;
+PackageGraph packageGraph;
+
+Future main(List<String> args) async {
+ stdout.writeln(
+ 'Warning: this tool is unsupported and usage may change at any time, '
+ 'use at your own risk.');
+
+ if (args.length != 1) {
+ throw ArgumentError(
+ 'Expected exactly one argument, the path to a build script to '
+ 'analyze.');
+ }
+ var scriptPath = args.first;
+ var scriptFile = File(scriptPath);
+ if (!scriptFile.existsSync()) {
+ throw ArgumentError(
+ 'Expected a build script at $scriptPath but didn\'t find one.');
+ }
+
+ var assetGraphFile =
+ File(assetGraphPathFor(p.url.joinAll(p.split(scriptPath))));
+ if (!assetGraphFile.existsSync()) {
+ throw ArgumentError(
+ 'Unable to find AssetGraph for $scriptPath at ${assetGraphFile.path}');
+ }
+ stdout.writeln('Loading asset graph at ${assetGraphFile.path}...');
+
+ assetGraph = AssetGraph.deserialize(assetGraphFile.readAsBytesSync());
+ packageGraph = PackageGraph.forThisPackage();
+
+ var commandRunner =
+ CommandRunner('', 'A tool for inspecting the AssetGraph for your build')
+ ..addCommand(InspectNodeCommand())
+ ..addCommand(GraphCommand());
+
+ stdout.writeln('Ready, please type in a command:');
+
+ while (true) {
+ stdout
+ ..writeln('')
+ ..write('> ');
+ var nextCommand = stdin.readLineSync();
+ stdout.writeln('');
+ try {
+ await commandRunner.run(nextCommand.split(' '));
+ } on UsageException {
+ stdout.writeln('Unrecognized option');
+ await commandRunner.run(['help']);
+ }
+ }
+}
+
+class InspectNodeCommand extends Command {
+ @override
+ String get name => 'inspect';
+
+ @override
+ String get description =>
+ 'Lists all the information about an asset using a relative or package: uri';
+
+ @override
+ String get invocation => '${super.invocation} <dart-uri>';
+
+ InspectNodeCommand() {
+ argParser.addFlag('verbose', abbr: 'v');
+ }
+
+ @override
+ run() {
+ var stringUris = argResults.rest;
+ if (stringUris.isEmpty) {
+ stderr.writeln('Expected at least one uri for a node to inspect.');
+ }
+ for (var stringUri in stringUris) {
+ var id = _idFromString(stringUri);
+ if (id == null) {
+ continue;
+ }
+ var node = assetGraph.get(id);
+ if (node == null) {
+ stderr.writeln('Unable to find an asset node for $stringUri.');
+ continue;
+ }
+
+ var description = StringBuffer()
+ ..writeln('Asset: $stringUri')
+ ..writeln(' type: ${node.runtimeType}');
+
+ if (node is GeneratedAssetNode) {
+ description
+ ..writeln(' state: ${node.state}')
+ ..writeln(' wasOutput: ${node.wasOutput}')
+ ..writeln(' phase: ${node.phaseNumber}')
+ ..writeln(' isFailure: ${node.isFailure}');
+ }
+
+ _printAsset(AssetId asset) =>
+ _listAsset(asset, description, indentation: ' ');
+
+ if (argResults['verbose'] == true) {
+ description.writeln(' primary outputs:');
+ node.primaryOutputs.forEach(_printAsset);
+
+ description.writeln(' secondary outputs:');
+ node.outputs.difference(node.primaryOutputs).forEach(_printAsset);
+
+ if (node is GeneratedAssetNode) {
+ description.writeln(' inputs:');
+ assetGraph.allNodes
+ .where((n) => n.outputs.contains(node.id))
+ .map((n) => n.id)
+ .forEach(_printAsset);
+ }
+ }
+
+ stdout.write(description);
+ }
+ return null;
+ }
+}
+
+class GraphCommand extends Command {
+ @override
+ String get name => 'graph';
+
+ @override
+ String get description => 'Lists all the nodes in the graph.';
+
+ @override
+ String get invocation => '${super.invocation} <dart-uri>';
+
+ GraphCommand() {
+ argParser
+ ..addFlag('generated',
+ abbr: 'g', help: 'Show only generated assets.', defaultsTo: false)
+ ..addFlag('original',
+ abbr: 'o',
+ help: 'Show only original source assets.',
+ defaultsTo: false)
+ ..addOption('package',
+ abbr: 'p', help: 'Filters nodes to a certain package')
+ ..addOption('pattern', abbr: 'm', help: 'glob pattern for path matching');
+ }
+
+ @override
+ run() {
+ var showGenerated = argResults['generated'] as bool;
+ var showSources = argResults['original'] as bool;
+ Iterable<AssetId> assets;
+ if (showGenerated) {
+ assets = assetGraph.outputs;
+ } else if (showSources) {
+ assets = assetGraph.sources;
+ } else {
+ assets = assetGraph.allNodes.map((n) => n.id);
+ }
+
+ var package = argResults['package'] as String;
+ if (package != null) {
+ assets = assets.where((id) => id.package == package);
+ }
+
+ var pattern = argResults['pattern'] as String;
+ if (pattern != null) {
+ var glob = Glob(pattern);
+ assets = assets.where((id) => glob.matches(id.path));
+ }
+
+ for (var id in assets) {
+ _listAsset(id, stdout, indentation: ' ');
+ }
+ return null;
+ }
+}
+
+AssetId _idFromString(String stringUri) {
+ var uri = Uri.parse(stringUri);
+ if (uri.scheme == 'package') {
+ return AssetId(uri.pathSegments.first,
+ p.url.join('lib', p.url.joinAll(uri.pathSegments.skip(1))));
+ } else if (!uri.isAbsolute && (uri.scheme == '' || uri.scheme == 'file')) {
+ return AssetId(packageGraph.root.name, uri.path);
+ } else {
+ stderr.writeln('Unrecognized uri $uri, must be a package: uri or a '
+ 'relative path.');
+ return null;
+ }
+}
+
+_listAsset(AssetId output, StringSink buffer, {String indentation = ' '}) {
+ var outputUri = output.uri;
+ if (outputUri.scheme == 'package') {
+ buffer.writeln('$indentation${output.uri}');
+ } else {
+ buffer.writeln('$indentation${output.path}');
+ }
+}
diff --git a/build_runner/dart_test.yaml b/build_runner/dart_test.yaml
new file mode 100644
index 0000000..112148b
--- /dev/null
+++ b/build_runner/dart_test.yaml
@@ -0,0 +1,3 @@
+tags:
+ integration:
+ timeout: 16x
diff --git a/build_runner/lib/build_runner.dart b/build_runner/lib/build_runner.dart
new file mode 100644
index 0000000..e0157e7
--- /dev/null
+++ b/build_runner/lib/build_runner.dart
@@ -0,0 +1,5 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'src/entrypoint/run.dart' show run;
diff --git a/build_runner/lib/build_script_generate.dart b/build_runner/lib/build_script_generate.dart
new file mode 100644
index 0000000..ee76280
--- /dev/null
+++ b/build_runner/lib/build_script_generate.dart
@@ -0,0 +1,6 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'src/build_script_generate/build_script_generate.dart'
+ show generateBuildScript, scriptLocation;
diff --git a/build_runner/lib/src/build_script_generate/bootstrap.dart b/build_runner/lib/src/build_script_generate/bootstrap.dart
new file mode 100644
index 0000000..22f4e10
--- /dev/null
+++ b/build_runner/lib/src/build_script_generate/bootstrap.dart
@@ -0,0 +1,145 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+import 'dart:isolate';
+
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/io.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as p;
+import 'package:stack_trace/stack_trace.dart';
+
+import 'package:build_runner/src/build_script_generate/build_script_generate.dart';
+
+final _logger = Logger('Bootstrap');
+
+/// Generates the build script, snapshots it if needed, and runs it.
+///
+/// Will retry once on [IsolateSpawnException]s to handle SDK updates.
+///
+/// Returns the exit code from running the build script.
+///
+/// If an exit code of 75 is returned, this function should be re-ran.
+Future<int> generateAndRun(List<String> args, {Logger logger}) async {
+ logger ??= _logger;
+ ReceivePort exitPort;
+ ReceivePort errorPort;
+ ReceivePort messagePort;
+ StreamSubscription errorListener;
+ int scriptExitCode;
+
+ var tryCount = 0;
+ var succeeded = false;
+ while (tryCount < 2 && !succeeded) {
+ tryCount++;
+ exitPort?.close();
+ errorPort?.close();
+ messagePort?.close();
+ await errorListener?.cancel();
+
+ try {
+ var buildScript = await generateBuildScript();
+ File(scriptLocation)
+ ..createSync(recursive: true)
+ ..writeAsStringSync(buildScript);
+ } on CannotBuildException {
+ return ExitCode.config.code;
+ }
+
+ scriptExitCode = await _createSnapshotIfMissing(logger);
+ if (scriptExitCode != 0) return scriptExitCode;
+
+ exitPort = ReceivePort();
+ errorPort = ReceivePort();
+ messagePort = ReceivePort();
+ errorListener = errorPort.listen((e) {
+ final error = e[0];
+ final trace = e[1] as String;
+ stderr
+ ..writeln('\n\nYou have hit a bug in build_runner')
+ ..writeln('Please file an issue with reproduction steps at '
+ 'https://github.com/dart-lang/build/issues\n\n')
+ ..writeln(error)
+ ..writeln(Trace.parse(trace).terse);
+ if (scriptExitCode == 0) scriptExitCode = 1;
+ });
+ try {
+ await Isolate.spawnUri(Uri.file(p.absolute(scriptSnapshotLocation)), args,
+ messagePort.sendPort,
+ errorsAreFatal: true,
+ onExit: exitPort.sendPort,
+ onError: errorPort.sendPort);
+ succeeded = true;
+ } on IsolateSpawnException catch (e) {
+ if (tryCount > 1) {
+ logger.severe(
+ 'Failed to spawn build script after retry. '
+ 'This is likely due to a misconfigured builder definition. '
+ 'See the generated script at $scriptLocation to find errors.',
+ e);
+ messagePort.sendPort.send(ExitCode.config.code);
+ exitPort.sendPort.send(null);
+ } else {
+ logger.warning(
+ 'Error spawning build script isolate, this is likely due to a Dart '
+ 'SDK update. Deleting snapshot and retrying...');
+ }
+ await File(scriptSnapshotLocation).delete();
+ }
+ }
+
+ StreamSubscription exitCodeListener;
+ exitCodeListener = messagePort.listen((isolateExitCode) {
+ if (isolateExitCode is int) {
+ scriptExitCode = isolateExitCode;
+ } else {
+ throw StateError(
+ 'Bad response from isolate, expected an exit code but got '
+ '$isolateExitCode');
+ }
+ exitCodeListener.cancel();
+ exitCodeListener = null;
+ });
+ await exitPort.first;
+ await errorListener.cancel();
+ await exitCodeListener?.cancel();
+
+ return scriptExitCode;
+}
+
+/// Creates a script snapshot for the build script.
+///
+/// Returns zero for success or a number for failure which should be set to the
+/// exit code.
+Future<int> _createSnapshotIfMissing(Logger logger) async {
+ var snapshotFile = File(scriptSnapshotLocation);
+ String stderr;
+ if (!await snapshotFile.exists()) {
+ var mode = stdin.hasTerminal
+ ? ProcessStartMode.normal
+ : ProcessStartMode.detachedWithStdio;
+ await logTimedAsync(logger, 'Creating build script snapshot...', () async {
+ var snapshot = await Process.start(Platform.executable,
+ ['--snapshot=$scriptSnapshotLocation', scriptLocation],
+ mode: mode);
+ stderr = (await snapshot.stderr
+ .transform(utf8.decoder)
+ .transform(LineSplitter())
+ .toList())
+ .join('');
+ });
+ if (!await snapshotFile.exists()) {
+ logger.severe('Failed to snapshot build script $scriptLocation.\n'
+ 'This is likely caused by a misconfigured builder definition.');
+ if (stderr.isNotEmpty) {
+ logger.severe(stderr);
+ }
+ return ExitCode.config.code;
+ }
+ }
+ return 0;
+}
diff --git a/build_runner/lib/src/build_script_generate/build_script_generate.dart b/build_runner/lib/src/build_script_generate/build_script_generate.dart
new file mode 100644
index 0000000..0157cad
--- /dev/null
+++ b/build_runner/lib/src/build_script_generate/build_script_generate.dart
@@ -0,0 +1,257 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/build.dart' show BuilderOptions;
+import 'package:build_config/build_config.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:code_builder/code_builder.dart';
+import 'package:dart_style/dart_style.dart';
+import 'package:graphs/graphs.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as p;
+
+import '../package_graph/build_config_overrides.dart';
+import 'builder_ordering.dart';
+
+const scriptLocation = '$entryPointDir/build.dart';
+const scriptSnapshotLocation = '$scriptLocation.snapshot';
+
+final _log = Logger('Entrypoint');
+
+Future<String> generateBuildScript() =>
+ logTimedAsync(_log, 'Generating build script', _generateBuildScript);
+
+Future<String> _generateBuildScript() async {
+ final builders = await _findBuilderApplications();
+ final library = Library((b) => b.body.addAll([
+ literalList(
+ builders,
+ refer('BuilderApplication',
+ 'package:build_runner_core/build_runner_core.dart'))
+ .assignFinal('_builders')
+ .statement,
+ _main()
+ ]));
+ final emitter = DartEmitter(Allocator.simplePrefixing());
+ try {
+ return DartFormatter().format('''
+ // ignore_for_file: directives_ordering
+
+ ${library.accept(emitter)}''');
+ } on FormatterException {
+ _log.severe('Generated build script could not be parsed.\n'
+ 'This is likely caused by a misconfigured builder definition.');
+ throw CannotBuildException();
+ }
+}
+
+/// Finds expressions to create all the `BuilderApplication` instances that
+/// should be applied packages in the build.
+///
+/// Adds `apply` expressions based on the BuildefDefinitions from any package
+/// which has a `build.yaml`.
+Future<Iterable<Expression>> _findBuilderApplications() async {
+ final builderApplications = <Expression>[];
+ final packageGraph = PackageGraph.forThisPackage();
+ final orderedPackages = stronglyConnectedComponents<PackageNode>(
+ [packageGraph.root],
+ (node) => node.dependencies,
+ equals: (a, b) => a.name == b.name,
+ hashCode: (n) => n.name.hashCode,
+ ).expand((c) => c);
+ final buildConfigOverrides =
+ await findBuildConfigOverrides(packageGraph, null);
+ Future<BuildConfig> _packageBuildConfig(PackageNode package) async {
+ if (buildConfigOverrides.containsKey(package.name)) {
+ return buildConfigOverrides[package.name];
+ }
+ try {
+ return await BuildConfig.fromBuildConfigDir(
+ package.name, package.dependencies.map((n) => n.name), package.path);
+ } on ArgumentError catch (_) {
+ // During the build an error will be logged.
+ return BuildConfig.useDefault(
+ package.name, package.dependencies.map((n) => n.name));
+ }
+ }
+
+ bool _isValidDefinition(dynamic definition) {
+ // Filter out builderDefinitions with relative imports that aren't
+ // from the root package, because they will never work.
+ if (definition.import.startsWith('package:') as bool) return true;
+ return definition.package == packageGraph.root.name;
+ }
+
+ final orderedConfigs =
+ await Future.wait(orderedPackages.map(_packageBuildConfig));
+ final builderDefinitions = orderedConfigs
+ .expand((c) => c.builderDefinitions.values)
+ .where(_isValidDefinition);
+
+ final orderedBuilders = findBuilderOrder(builderDefinitions).toList();
+ builderApplications.addAll(orderedBuilders.map(_applyBuilder));
+
+ final postProcessBuilderDefinitions = orderedConfigs
+ .expand((c) => c.postProcessBuilderDefinitions.values)
+ .where(_isValidDefinition);
+ builderApplications
+ .addAll(postProcessBuilderDefinitions.map(_applyPostProcessBuilder));
+
+ return builderApplications;
+}
+
+/// A method forwarding to `run`.
+Method _main() => Method((b) => b
+ ..name = 'main'
+ ..modifier = MethodModifier.async
+ ..requiredParameters.add(Parameter((b) => b
+ ..name = 'args'
+ ..type = TypeReference((b) => b
+ ..symbol = 'List'
+ ..types.add(refer('String')))))
+ ..optionalParameters.add(Parameter((b) => b
+ ..name = 'sendPort'
+ ..type = refer('SendPort', 'dart:isolate')))
+ ..body = Block.of([
+ refer('run', 'package:build_runner/build_runner.dart')
+ .call([refer('args'), refer('_builders')])
+ .awaited
+ .assignVar('result')
+ .statement,
+ refer('sendPort')
+ .nullSafeProperty('send')
+ .call([refer('result')]).statement,
+ ]));
+
+/// An expression calling `apply` with appropriate setup for a Builder.
+Expression _applyBuilder(BuilderDefinition definition) {
+ final namedArgs = <String, Expression>{};
+ if (definition.isOptional) {
+ namedArgs['isOptional'] = literalTrue;
+ }
+ if (definition.buildTo == BuildTo.cache) {
+ namedArgs['hideOutput'] = literalTrue;
+ } else {
+ namedArgs['hideOutput'] = literalFalse;
+ }
+ if (!identical(definition.defaults?.generateFor, InputSet.anything)) {
+ final inputSetArgs = <String, Expression>{};
+ if (definition.defaults.generateFor.include != null) {
+ inputSetArgs['include'] =
+ literalConstList(definition.defaults.generateFor.include);
+ }
+ if (definition.defaults.generateFor.exclude != null) {
+ inputSetArgs['exclude'] =
+ literalConstList(definition.defaults.generateFor.exclude);
+ }
+ namedArgs['defaultGenerateFor'] =
+ refer('InputSet', 'package:build_config/build_config.dart')
+ .constInstance([], inputSetArgs);
+ }
+ if (!identical(definition.defaults?.options, BuilderOptions.empty)) {
+ namedArgs['defaultOptions'] =
+ _constructBuilderOptions(definition.defaults.options);
+ }
+ if (!identical(definition.defaults?.devOptions, BuilderOptions.empty)) {
+ namedArgs['defaultDevOptions'] =
+ _constructBuilderOptions(definition.defaults.devOptions);
+ }
+ if (!identical(definition.defaults?.releaseOptions, BuilderOptions.empty)) {
+ namedArgs['defaultReleaseOptions'] =
+ _constructBuilderOptions(definition.defaults.releaseOptions);
+ }
+ if (definition.appliesBuilders.isNotEmpty) {
+ namedArgs['appliesBuilders'] = literalList(definition.appliesBuilders);
+ }
+ var import = _buildScriptImport(definition.import);
+ return refer('apply', 'package:build_runner_core/build_runner_core.dart')
+ .call([
+ literalString(definition.key),
+ literalList(
+ definition.builderFactories.map((f) => refer(f, import)).toList()),
+ _findToExpression(definition),
+ ], namedArgs);
+}
+
+/// An expression calling `applyPostProcess` with appropriate setup for a
+/// PostProcessBuilder.
+Expression _applyPostProcessBuilder(PostProcessBuilderDefinition definition) {
+ final namedArgs = <String, Expression>{};
+ if (definition.defaults?.generateFor != null) {
+ final inputSetArgs = <String, Expression>{};
+ if (definition.defaults.generateFor.include != null) {
+ inputSetArgs['include'] =
+ literalConstList(definition.defaults.generateFor.include);
+ }
+ if (definition.defaults.generateFor.exclude != null) {
+ inputSetArgs['exclude'] =
+ literalConstList(definition.defaults.generateFor.exclude);
+ }
+ if (!identical(definition.defaults?.options, BuilderOptions.empty)) {
+ namedArgs['defaultOptions'] =
+ _constructBuilderOptions(definition.defaults.options);
+ }
+ if (!identical(definition.defaults?.devOptions, BuilderOptions.empty)) {
+ namedArgs['defaultDevOptions'] =
+ _constructBuilderOptions(definition.defaults.devOptions);
+ }
+ if (!identical(definition.defaults?.releaseOptions, BuilderOptions.empty)) {
+ namedArgs['defaultReleaseOptions'] =
+ _constructBuilderOptions(definition.defaults.releaseOptions);
+ }
+ namedArgs['defaultGenerateFor'] =
+ refer('InputSet', 'package:build_config/build_config.dart')
+ .constInstance([], inputSetArgs);
+ }
+ var import = _buildScriptImport(definition.import);
+ return refer('applyPostProcess',
+ 'package:build_runner_core/build_runner_core.dart')
+ .call([
+ literalString(definition.key),
+ refer(definition.builderFactory, import),
+ ], namedArgs);
+}
+
+/// Returns the actual import to put in the generated script based on an import
+/// found in the build.yaml.
+String _buildScriptImport(String import) {
+ if (import.startsWith('package:')) {
+ return import;
+ } else if (import.startsWith('../') || import.startsWith('/')) {
+ _log.warning('The `../` import syntax in build.yaml is now deprecated, '
+ 'instead do a normal relative import as if it was from the root of '
+ 'the package. Found `$import` in your `build.yaml` file.');
+ return import;
+ } else {
+ return p.url.relative(import, from: p.url.dirname(scriptLocation));
+ }
+}
+
+Expression _findToExpression(BuilderDefinition definition) {
+ switch (definition.autoApply) {
+ case AutoApply.none:
+ return refer('toNoneByDefault',
+ 'package:build_runner_core/build_runner_core.dart')
+ .call([]);
+ case AutoApply.dependents:
+ return refer('toDependentsOf',
+ 'package:build_runner_core/build_runner_core.dart')
+ .call([literalString(definition.package)]);
+ case AutoApply.allPackages:
+ return refer('toAllPackages',
+ 'package:build_runner_core/build_runner_core.dart')
+ .call([]);
+ case AutoApply.rootPackage:
+ return refer('toRoot', 'package:build_runner_core/build_runner_core.dart')
+ .call([]);
+ }
+ throw ArgumentError('Unhandled AutoApply type: ${definition.autoApply}');
+}
+
+/// An expression creating a [BuilderOptions] from a json string.
+Expression _constructBuilderOptions(BuilderOptions options) =>
+ refer('BuilderOptions', 'package:build/build.dart')
+ .newInstance([literalMap(options.config)]);
diff --git a/build_runner/lib/src/build_script_generate/builder_ordering.dart b/build_runner/lib/src/build_script_generate/builder_ordering.dart
new file mode 100644
index 0000000..052414b
--- /dev/null
+++ b/build_runner/lib/src/build_script_generate/builder_ordering.dart
@@ -0,0 +1,43 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build_config/build_config.dart';
+import 'package:graphs/graphs.dart';
+
+/// Put [builders] into an order such that any builder which specifies
+/// [BuilderDefinition.requiredInputs] will come after any builder which
+/// produces a desired output.
+///
+/// Builders will be ordered such that their `required_inputs` and `runs_before`
+/// constraints are met, but the rest of the ordering is arbitrary.
+Iterable<BuilderDefinition> findBuilderOrder(
+ Iterable<BuilderDefinition> builders) {
+ Iterable<BuilderDefinition> dependencies(BuilderDefinition parent) =>
+ builders.where((child) =>
+ _hasInputDependency(parent, child) || _mustRunBefore(parent, child));
+ var components = stronglyConnectedComponents<BuilderDefinition>(
+ builders,
+ dependencies,
+ equals: (a, b) => a.key == b.key,
+ hashCode: (b) => b.key.hashCode,
+ );
+ return components.map((component) {
+ if (component.length > 1) {
+ throw ArgumentError('Required input cycle for ${component.toList()}');
+ }
+ return component.single;
+ }).toList();
+}
+
+/// Whether [parent] has a `required_input` that wants to read outputs produced
+/// by [child].
+bool _hasInputDependency(BuilderDefinition parent, BuilderDefinition child) {
+ final childOutputs = child.buildExtensions.values.expand((v) => v).toSet();
+ return parent.requiredInputs
+ .any((input) => childOutputs.any((output) => output.endsWith(input)));
+}
+
+/// Whether [child] specifies that it wants to run before [parent].
+bool _mustRunBefore(BuilderDefinition parent, BuilderDefinition child) =>
+ child.runsBefore.contains(parent.key);
diff --git a/build_runner/lib/src/daemon/asset_server.dart b/build_runner/lib/src/daemon/asset_server.dart
new file mode 100644
index 0000000..e434c5a
--- /dev/null
+++ b/build_runner/lib/src/daemon/asset_server.dart
@@ -0,0 +1,35 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:shelf/shelf.dart';
+import 'package:shelf/shelf_io.dart' as shelf_io;
+
+import '../server/server.dart';
+import 'daemon_builder.dart';
+
+class AssetServer {
+ HttpServer _server;
+
+ AssetServer._(this._server);
+
+ int get port => _server.port;
+
+ Future<void> stop() => _server.close(force: true);
+
+ static Future<AssetServer> run(
+ BuildRunnerDaemonBuilder builder,
+ String rootPackage,
+ ) async {
+ var server = await HttpServer.bind(InternetAddress.anyIPv6, 0);
+ var cascade = Cascade().add((_) async {
+ await builder.building;
+ return Response.notFound('');
+ }).add(AssetHandler(builder.reader, rootPackage).handle);
+ shelf_io.serveRequests(server, cascade.handler);
+ return AssetServer._(server);
+ }
+}
diff --git a/build_runner/lib/src/daemon/constants.dart b/build_runner/lib/src/daemon/constants.dart
new file mode 100644
index 0000000..dd8b244
--- /dev/null
+++ b/build_runner/lib/src/daemon/constants.dart
@@ -0,0 +1,9 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build_daemon/constants.dart';
+import 'package:path/path.dart' as p;
+
+String assetServerPortFilePath(String workingDirectory) =>
+ p.join(daemonWorkspace(workingDirectory), '.asset_server_port');
diff --git a/build_runner/lib/src/daemon/daemon_builder.dart b/build_runner/lib/src/daemon/daemon_builder.dart
new file mode 100644
index 0000000..e192864
--- /dev/null
+++ b/build_runner/lib/src/daemon/daemon_builder.dart
@@ -0,0 +1,193 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:build/build.dart';
+import 'package:build_daemon/daemon_builder.dart';
+import 'package:build_daemon/data/build_status.dart' as daemon;
+import 'package:build_daemon/data/build_target.dart';
+import 'package:build_daemon/data/server_log.dart';
+import 'package:build_runner/src/entrypoint/options.dart';
+import 'package:build_runner/src/package_graph/build_config_overrides.dart';
+import 'package:build_runner/src/watcher/asset_change.dart';
+import 'package:build_runner/src/watcher/change_filter.dart';
+import 'package:build_runner/src/watcher/collect_changes.dart';
+import 'package:build_runner/src/watcher/delete_writer.dart';
+import 'package:build_runner/src/watcher/graph_watcher.dart';
+import 'package:build_runner/src/watcher/node_watcher.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/generate/build_impl.dart';
+import 'package:logging/logging.dart';
+import 'package:watcher/watcher.dart';
+
+/// A Daemon Builder that uses build_runner_core for building.
+class BuildRunnerDaemonBuilder implements DaemonBuilder {
+ final _buildResults = StreamController<daemon.BuildResults>();
+
+ final BuildImpl _builder;
+ final BuildOptions _buildOptions;
+ final StreamController<ServerLog> _outputStreamController;
+ final Stream<WatchEvent> _changes;
+
+ Completer<Null> _buildingCompleter;
+
+ @override
+ final Stream<ServerLog> logs;
+
+ BuildRunnerDaemonBuilder._(
+ this._builder,
+ this._buildOptions,
+ this._outputStreamController,
+ this._changes,
+ ) : logs = _outputStreamController.stream.asBroadcastStream();
+
+ /// Waits for a running build to complete before returning.
+ ///
+ /// If there is no running build, it will return immediately.
+ Future<void> get building => _buildingCompleter?.future;
+
+ @override
+ Stream<daemon.BuildResults> get builds => _buildResults.stream;
+
+ Stream<WatchEvent> get changes => _changes;
+
+ FinalizedReader get reader => _builder.finalizedReader;
+
+ @override
+ Future<void> build(
+ Set<BuildTarget> targets, Iterable<WatchEvent> fileChanges) async {
+ var changes = fileChanges
+ .map<AssetChange>(
+ (change) => AssetChange(AssetId.parse(change.path), change.type))
+ .toList();
+ var targetNames = targets.map((t) => t.target).toSet();
+ _logMessage(Level.INFO, 'About to build ${targetNames.toList()}...');
+ _signalStart(targetNames);
+ var results = <daemon.BuildResult>[];
+ try {
+ var mergedChanges = collectChanges([changes]);
+ var result =
+ await _builder.run(mergedChanges, buildDirs: targetNames.toList());
+ for (var target in targets) {
+ if (result.status == BuildStatus.success) {
+ // TODO(grouma) - Can we notify if a target was cached?
+ results.add(daemon.DefaultBuildResult((b) => b
+ ..status = daemon.BuildStatus.succeeded
+ ..target = target.target));
+ } else {
+ results.add(daemon.DefaultBuildResult((b) => b
+ ..status = daemon.BuildStatus.failed
+ // TODO(grouma) - We should forward the error messages instead.
+ // We can use the AssetGraph and FailureReporter to provide a better
+ // error message.
+ ..error = 'FailureType: ${result.failureType.exitCode}'
+ ..target = target.target));
+ }
+ }
+ } catch (e) {
+ for (var target in targets) {
+ results.add(daemon.DefaultBuildResult((b) => b
+ ..status = daemon.BuildStatus.failed
+ ..error = '$e'
+ ..target = target.target));
+ }
+ _logMessage(Level.SEVERE, 'Build Failed:\n${e.toString()}');
+ }
+ _signalEnd(results);
+ }
+
+ @override
+ Future<void> stop() async {
+ await _builder.beforeExit();
+ await _buildOptions.logListener.cancel();
+ }
+
+ void _logMessage(Level level, String message) =>
+ _outputStreamController.add(ServerLog(
+ (b) => b.log = '[$level] $message',
+ ));
+
+ void _signalEnd(Iterable<daemon.BuildResult> results) {
+ _buildingCompleter.complete();
+ _buildResults.add(daemon.BuildResults((b) => b..results.addAll(results)));
+ }
+
+ void _signalStart(Iterable<String> targets) {
+ _buildingCompleter = Completer();
+ var results = <daemon.BuildResult>[];
+ for (var target in targets) {
+ results.add(daemon.DefaultBuildResult((b) => b
+ ..status = daemon.BuildStatus.started
+ ..target = target));
+ }
+ _buildResults.add(daemon.BuildResults((b) => b..results.addAll(results)));
+ }
+
+ static Future<BuildRunnerDaemonBuilder> create(
+ PackageGraph packageGraph,
+ List<BuilderApplication> builders,
+ SharedOptions sharedOptions,
+ ) async {
+ var expectedDeletes = Set<AssetId>();
+ var outputStreamController = StreamController<ServerLog>();
+
+ var environment = OverrideableEnvironment(
+ IOEnvironment(packageGraph,
+ assumeTty: true,
+ // TODO(grouma) - This should likely moved to the build_impl command
+ // so that different daemon clients can output to different
+ // directories.
+ outputMap: sharedOptions.outputMap,
+ outputSymlinksOnly: sharedOptions.outputSymlinksOnly),
+ onLog: (record) {
+ outputStreamController.add(ServerLog((b) => b.log = record.toString()));
+ });
+
+ var daemonEnvironment = OverrideableEnvironment(environment,
+ writer: OnDeleteWriter(environment.writer, expectedDeletes.add));
+
+ var logSubscription =
+ LogSubscription(environment, verbose: sharedOptions.verbose);
+
+ var overrideBuildConfig =
+ await findBuildConfigOverrides(packageGraph, sharedOptions.configKey);
+
+ var buildOptions = await BuildOptions.create(
+ logSubscription,
+ packageGraph: packageGraph,
+ deleteFilesByDefault: sharedOptions.deleteFilesByDefault,
+ overrideBuildConfig: overrideBuildConfig,
+ skipBuildScriptCheck: sharedOptions.skipBuildScriptCheck,
+ enableLowResourcesMode: sharedOptions.enableLowResourcesMode,
+ trackPerformance: sharedOptions.trackPerformance,
+ logPerformanceDir: sharedOptions.logPerformanceDir,
+ );
+
+ var builder = await BuildImpl.create(buildOptions, daemonEnvironment,
+ builders, sharedOptions.builderConfigOverrides,
+ isReleaseBuild: sharedOptions.isReleaseBuild);
+
+ var graphEvents = PackageGraphWatcher(packageGraph,
+ watch: (node) => PackageNodeWatcher(node,
+ watch: (path) => Platform.isWindows
+ ? PollingDirectoryWatcher(path)
+ : DirectoryWatcher(path)))
+ .watch()
+ .where((change) => shouldProcess(
+ change,
+ builder.assetGraph,
+ buildOptions,
+ sharedOptions.outputMap?.isNotEmpty == true,
+ expectedDeletes,
+ ));
+
+ var changes =
+ graphEvents.map((data) => WatchEvent(data.type, '${data.id}'));
+
+ return BuildRunnerDaemonBuilder._(
+ builder, buildOptions, outputStreamController, changes);
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/base_command.dart b/build_runner/lib/src/entrypoint/base_command.dart
new file mode 100644
index 0000000..b48afaa
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/base_command.dart
@@ -0,0 +1,94 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:args/command_runner.dart';
+import 'package:logging/logging.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+
+import 'options.dart';
+import 'runner.dart';
+
+abstract class BuildRunnerCommand extends Command<int> {
+ Logger get logger => Logger(name);
+
+ List<BuilderApplication> get builderApplications =>
+ (runner as BuildCommandRunner).builderApplications;
+
+ PackageGraph get packageGraph => (runner as BuildCommandRunner).packageGraph;
+
+ BuildRunnerCommand({bool symlinksDefault}) {
+ _addBaseFlags(symlinksDefault ?? false);
+ }
+
+ void _addBaseFlags(bool symlinksDefault) {
+ argParser
+ ..addFlag(deleteFilesByDefaultOption,
+ help:
+ 'By default, the user will be prompted to delete any files which '
+ 'already exist but were not known to be generated by this '
+ 'specific build script.\n\n'
+ 'Enabling this option skips the prompt and deletes the files. '
+ 'This should typically be used in continues integration servers '
+ 'and tests, but not otherwise.',
+ negatable: false,
+ defaultsTo: false)
+ ..addFlag(lowResourcesModeOption,
+ help: 'Reduce the amount of memory consumed by the build process. '
+ 'This will slow down builds but allow them to progress in '
+ 'resource constrained environments.',
+ negatable: false,
+ defaultsTo: false)
+ ..addOption(configOption,
+ help: 'Read `build.<name>.yaml` instead of the default `build.yaml`',
+ abbr: 'c')
+ ..addFlag('fail-on-severe',
+ help: 'Deprecated argument - always enabled',
+ negatable: true,
+ defaultsTo: true,
+ hide: true)
+ ..addFlag(trackPerformanceOption,
+ help: r'Enables performance tracking and the /$perf page.',
+ negatable: true,
+ defaultsTo: false)
+ ..addOption(logPerformanceOption,
+ help: 'A directory to write performance logs to, must be in the '
+ 'current package. Implies `--track-performance`.')
+ ..addFlag(skipBuildScriptCheckOption,
+ help: r'Skip validation for the digests of files imported by the '
+ 'build script.',
+ hide: true,
+ defaultsTo: false)
+ ..addMultiOption(outputOption,
+ help: 'A directory to copy the fully built package to. Or a mapping '
+ 'from a top-level directory in the package to the directory to '
+ 'write a filtered build output to. For example "web:deploy".',
+ abbr: 'o')
+ ..addFlag(verboseOption,
+ abbr: 'v',
+ defaultsTo: false,
+ negatable: false,
+ help: 'Enables verbose logging.')
+ ..addFlag(releaseOption,
+ abbr: 'r',
+ defaultsTo: false,
+ negatable: true,
+ help: 'Build with release mode defaults for builders.')
+ ..addMultiOption(defineOption,
+ splitCommas: false,
+ help: 'Sets the global `options` config for a builder by key.')
+ ..addFlag(symlinkOption,
+ defaultsTo: symlinksDefault,
+ negatable: true,
+ help: 'Symlink files in the output directories, instead of copying.');
+ }
+
+ /// Must be called inside [run] so that [argResults] is non-null.
+ ///
+ /// You may override this to return more specific options if desired, but they
+ /// must extend [SharedOptions].
+ SharedOptions readOptions() {
+ return SharedOptions.fromParsedArgs(
+ argResults, argResults.rest, packageGraph.root.name, this);
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/build.dart b/build_runner/lib/src/entrypoint/build.dart
new file mode 100644
index 0000000..405104d
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/build.dart
@@ -0,0 +1,50 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/io.dart';
+
+import '../generate/build.dart';
+import 'base_command.dart';
+
+/// A command that does a single build and then exits.
+class BuildCommand extends BuildRunnerCommand {
+ @override
+ String get invocation => '${super.invocation} [directories]';
+
+ @override
+ String get name => 'build';
+
+ @override
+ String get description =>
+ 'Performs a single build on the specified targets and then exits.';
+
+ @override
+ Future<int> run() async {
+ var options = readOptions();
+ var result = await build(
+ builderApplications,
+ deleteFilesByDefault: options.deleteFilesByDefault,
+ enableLowResourcesMode: options.enableLowResourcesMode,
+ configKey: options.configKey,
+ outputMap: options.outputMap,
+ outputSymlinksOnly: options.outputSymlinksOnly,
+ packageGraph: packageGraph,
+ verbose: options.verbose,
+ builderConfigOverrides: options.builderConfigOverrides,
+ isReleaseBuild: options.isReleaseBuild,
+ trackPerformance: options.trackPerformance,
+ skipBuildScriptCheck: options.skipBuildScriptCheck,
+ buildDirs: options.buildDirs,
+ logPerformanceDir: options.logPerformanceDir,
+ );
+ if (result.status == BuildStatus.success) {
+ return ExitCode.success.code;
+ } else {
+ return result.failureType.exitCode;
+ }
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/clean.dart b/build_runner/lib/src/entrypoint/clean.dart
new file mode 100644
index 0000000..f9c3f8c
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/clean.dart
@@ -0,0 +1,87 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/asset_graph/graph.dart';
+import 'package:build_runner_core/src/asset_graph/node.dart';
+import 'package:logging/logging.dart';
+
+import '../logging/std_io_logging.dart';
+
+class CleanCommand extends Command<int> {
+ @override
+ String get name => 'clean';
+
+ @override
+ String get description =>
+ 'Cleans up output from previous builds. Does not clean up --output '
+ 'directories.';
+
+ Logger get logger => Logger(name);
+
+ @override
+ Future<int> run() async {
+ var logSubscription = Logger.root.onRecord.listen(stdIOLogListener());
+
+ logger.warning('Deleting cache and generated source files.\n'
+ 'This shouldn\'t be necessary for most applications, unless you have '
+ 'made intentional edits to generated files (i.e. for testing). '
+ 'Consider filing a bug at '
+ 'https://github.com/dart-lang/build/issues/new if you are using this '
+ 'to work around an apparent (and reproducible) bug.');
+
+ await logTimedAsync(logger, 'Cleaning up source outputs', () async {
+ var assetGraphFile = File(assetGraphPath);
+ if (!assetGraphFile.existsSync()) {
+ logger.warning('No asset graph found. '
+ 'Skipping cleanup of generated files in source directories.');
+ return;
+ }
+ AssetGraph assetGraph;
+ try {
+ assetGraph = AssetGraph.deserialize(await assetGraphFile.readAsBytes());
+ } catch (_) {
+ logger.warning('Failed to deserialize AssetGraph. '
+ 'Skipping cleanup of generated files in source directories.');
+ return;
+ }
+ var packageGraph = PackageGraph.forThisPackage();
+ await cleanUpSourceOutputs(assetGraph, packageGraph);
+ });
+
+ await logTimedAsync(
+ logger, 'Cleaning up cache directory', cleanUpGeneratedDirectory);
+
+ await logSubscription.cancel();
+
+ return 0;
+ }
+}
+
+Future<void> cleanUpSourceOutputs(
+ AssetGraph assetGraph, PackageGraph packageGraph) async {
+ var writer = FileBasedAssetWriter(packageGraph);
+ for (var id in assetGraph.outputs) {
+ if (id.package != packageGraph.root.name) continue;
+ var node = assetGraph.get(id) as GeneratedAssetNode;
+ if (node.wasOutput) {
+ // Note that this does a file.exists check in the root package and
+ // only tries to delete the file if it exists. This way we only
+ // actually delete to_source outputs, without reading in the build
+ // actions.
+ await writer.delete(id);
+ }
+ }
+}
+
+Future<void> cleanUpGeneratedDirectory() async {
+ var generatedDir = Directory(cacheDir);
+ if (await generatedDir.exists()) {
+ await generatedDir.delete(recursive: true);
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/daemon.dart b/build_runner/lib/src/entrypoint/daemon.dart
new file mode 100644
index 0000000..8feca56
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/daemon.dart
@@ -0,0 +1,81 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:build_daemon/constants.dart';
+import 'package:build_daemon/src/daemon.dart';
+import 'package:build_runner/src/daemon/constants.dart';
+
+import '../daemon/asset_server.dart';
+import '../daemon/daemon_builder.dart';
+import 'base_command.dart';
+
+/// A command that starts the Build Daemon.
+class DaemonCommand extends BuildRunnerCommand {
+ @override
+ String get description => 'Starts the build daemon.';
+
+ @override
+ bool get hidden => true;
+
+ @override
+ String get name => 'daemon';
+
+ @override
+ Future<int> run() async {
+ var workingDirectory = Directory.current.path;
+ var options = readOptions();
+ var daemon = Daemon(workingDirectory);
+ var requestedOptions = argResults.arguments.toSet();
+ if (!daemon.tryGetLock()) {
+ var runningOptions = currentOptions(workingDirectory);
+ var version = runningVersion(workingDirectory);
+ if (version != currentVersion) {
+ stdout
+ ..writeln('Running Version: $version')
+ ..writeln('Current Version: $currentVersion')
+ ..writeln(versionSkew);
+ return 1;
+ } else if (!(runningOptions.length == requestedOptions.length &&
+ runningOptions.containsAll(requestedOptions))) {
+ stdout
+ ..writeln('Running Options: $runningOptions')
+ ..writeln('Requested Options: $requestedOptions')
+ ..writeln(optionsSkew);
+ return 1;
+ } else {
+ stdout.writeln('Daemon is already running.');
+ print(readyToConnectLog);
+ return 0;
+ }
+ } else {
+ stdout.writeln('Starting daemon...');
+ var builder = await BuildRunnerDaemonBuilder.create(
+ packageGraph,
+ builderApplications,
+ options,
+ );
+ // Forward server logs to daemon command STDIO.
+ var logSub =
+ builder.logs.listen((serverLog) => stdout.writeln(serverLog.log));
+ var server = await AssetServer.run(builder, packageGraph.root.name);
+ File(assetServerPortFilePath(workingDirectory))
+ .writeAsStringSync('${server.port}');
+ await daemon.start(requestedOptions, builder, builder.changes);
+ stdout.writeln(readyToConnectLog);
+ await logSub.cancel();
+ await daemon.onDone.whenComplete(() async {
+ await server.stop();
+ });
+ // Clients can disconnect from the daemon mid build.
+ // As a result we try to relinquish resources which can
+ // cause the build to hang. To ensure there are no ghost processes
+ // fast exit.
+ exit(0);
+ }
+ return 0;
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/options.dart b/build_runner/lib/src/entrypoint/options.dart
new file mode 100644
index 0000000..ae2cb4f
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/options.dart
@@ -0,0 +1,322 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:args/args.dart';
+import 'package:args/command_runner.dart';
+import 'package:build_config/build_config.dart';
+import 'package:meta/meta.dart';
+import 'package:path/path.dart' as p;
+
+const defineOption = 'define';
+const deleteFilesByDefaultOption = 'delete-conflicting-outputs';
+const liveReloadOption = 'live-reload';
+const hotReloadOption = 'hot-reload';
+const logPerformanceOption = 'log-performance';
+const logRequestsOption = 'log-requests';
+const lowResourcesModeOption = 'low-resources-mode';
+const failOnSevereOption = 'fail-on-severe';
+const hostnameOption = 'hostname';
+const outputOption = 'output';
+const configOption = 'config';
+const verboseOption = 'verbose';
+const releaseOption = 'release';
+const trackPerformanceOption = 'track-performance';
+const skipBuildScriptCheckOption = 'skip-build-script-check';
+const symlinkOption = 'symlink';
+
+enum BuildUpdatesOption { none, liveReload, hotReload }
+
+final _defaultWebDirs = const ['web', 'test', 'example', 'benchmark'];
+
+/// Base options that are shared among all commands.
+class SharedOptions {
+ /// By default, the user will be prompted to delete any files which already
+ /// exist but were not generated by this specific build script.
+ ///
+ /// This option can be set to `true` to skip this prompt.
+ final bool deleteFilesByDefault;
+
+ final bool enableLowResourcesMode;
+
+ /// Read `build.$configKey.yaml` instead of `build.yaml`.
+ final String configKey;
+
+ /// A mapping of output paths to root input directory.
+ ///
+ /// If null, no directory will be created.
+ final Map<String, String> outputMap;
+
+ /// Whether or not the output directories should contain only symlinks,
+ /// or full copies of all files.
+ final bool outputSymlinksOnly;
+
+ /// Enables performance tracking and the `/$perf` page.
+ final bool trackPerformance;
+
+ /// A directory to log performance information to.
+ String logPerformanceDir;
+
+ /// Check digest of imports to the build script to invalidate the build.
+ final bool skipBuildScriptCheck;
+
+ final bool verbose;
+
+ // Global config overrides by builder.
+ //
+ // Keys are the builder keys, such as my_package|my_builder, and values
+ // represent config objects. All keys in the config will override the parsed
+ // config for that key.
+ final Map<String, Map<String, dynamic>> builderConfigOverrides;
+
+ final bool isReleaseBuild;
+
+ /// The directories that should be built.
+ final List<String> buildDirs;
+
+ SharedOptions._({
+ @required this.deleteFilesByDefault,
+ @required this.enableLowResourcesMode,
+ @required this.configKey,
+ @required this.outputMap,
+ @required this.outputSymlinksOnly,
+ @required this.trackPerformance,
+ @required this.skipBuildScriptCheck,
+ @required this.verbose,
+ @required this.builderConfigOverrides,
+ @required this.isReleaseBuild,
+ @required this.buildDirs,
+ @required this.logPerformanceDir,
+ });
+
+ factory SharedOptions.fromParsedArgs(ArgResults argResults,
+ Iterable<String> positionalArgs, String rootPackage, Command command) {
+ var outputMap = _parseOutputMap(argResults);
+ var buildDirs = _buildDirsFromOutputMap(outputMap);
+ for (var arg in positionalArgs) {
+ var parts = p.split(arg);
+ if (parts.length > 1) {
+ throw UsageException(
+ 'Only top level directories are allowed as positional args',
+ command.usage);
+ }
+ buildDirs.add(arg);
+ }
+
+ return SharedOptions._(
+ deleteFilesByDefault: argResults[deleteFilesByDefaultOption] as bool,
+ enableLowResourcesMode: argResults[lowResourcesModeOption] as bool,
+ configKey: argResults[configOption] as String,
+ outputMap: outputMap,
+ outputSymlinksOnly: argResults[symlinkOption] as bool,
+ trackPerformance: argResults[trackPerformanceOption] as bool,
+ skipBuildScriptCheck: argResults[skipBuildScriptCheckOption] as bool,
+ verbose: argResults[verboseOption] as bool,
+ builderConfigOverrides:
+ _parseBuilderConfigOverrides(argResults[defineOption], rootPackage),
+ isReleaseBuild: argResults[releaseOption] as bool,
+ buildDirs: buildDirs.toList(),
+ logPerformanceDir: argResults[logPerformanceOption] as String,
+ );
+ }
+}
+
+/// Options specific to the `serve` command.
+class ServeOptions extends SharedOptions {
+ final String hostName;
+ final BuildUpdatesOption buildUpdates;
+ final bool logRequests;
+ final List<ServeTarget> serveTargets;
+
+ ServeOptions._({
+ @required this.hostName,
+ @required this.buildUpdates,
+ @required this.logRequests,
+ @required this.serveTargets,
+ @required bool deleteFilesByDefault,
+ @required bool enableLowResourcesMode,
+ @required String configKey,
+ @required Map<String, String> outputMap,
+ @required bool outputSymlinksOnly,
+ @required bool trackPerformance,
+ @required bool skipBuildScriptCheck,
+ @required bool verbose,
+ @required Map<String, Map<String, dynamic>> builderConfigOverrides,
+ @required bool isReleaseBuild,
+ @required List<String> buildDirs,
+ @required String logPerformanceDir,
+ }) : super._(
+ deleteFilesByDefault: deleteFilesByDefault,
+ enableLowResourcesMode: enableLowResourcesMode,
+ configKey: configKey,
+ outputMap: outputMap,
+ outputSymlinksOnly: outputSymlinksOnly,
+ trackPerformance: trackPerformance,
+ skipBuildScriptCheck: skipBuildScriptCheck,
+ verbose: verbose,
+ builderConfigOverrides: builderConfigOverrides,
+ isReleaseBuild: isReleaseBuild,
+ buildDirs: buildDirs,
+ logPerformanceDir: logPerformanceDir,
+ );
+
+ factory ServeOptions.fromParsedArgs(ArgResults argResults,
+ Iterable<String> positionalArgs, String rootPackage, Command command) {
+ var serveTargets = <ServeTarget>[];
+ var nextDefaultPort = 8080;
+ for (var arg in positionalArgs) {
+ var parts = arg.split(':');
+ var path = parts.first;
+ if (parts.length > 2) {
+ throw UsageException(
+ 'Invalid format for positional argument to serve `$arg`'
+ ', expected <directory>:<port>.',
+ command.usage);
+ }
+ var port = parts.length == 2 ? int.tryParse(parts[1]) : nextDefaultPort++;
+ if (port == null) {
+ throw UsageException(
+ 'Unable to parse port number in `$arg`', command.usage);
+ }
+ serveTargets.add(ServeTarget(path, port));
+ }
+ if (serveTargets.isEmpty) {
+ for (var dir in _defaultWebDirs) {
+ if (Directory(dir).existsSync()) {
+ serveTargets.add(ServeTarget(dir, nextDefaultPort++));
+ }
+ }
+ }
+
+ var outputMap = _parseOutputMap(argResults);
+ var buildDirs = _buildDirsFromOutputMap(outputMap)
+ ..addAll(serveTargets.map((t) => t.dir));
+
+ BuildUpdatesOption buildUpdates;
+ if (argResults[liveReloadOption] as bool &&
+ argResults[hotReloadOption] as bool) {
+ throw UsageException(
+ 'Options --$liveReloadOption and --$hotReloadOption '
+ "can't both be used together",
+ command.usage);
+ } else if (argResults[liveReloadOption] as bool) {
+ buildUpdates = BuildUpdatesOption.liveReload;
+ } else if (argResults[hotReloadOption] as bool) {
+ buildUpdates = BuildUpdatesOption.hotReload;
+ }
+
+ return ServeOptions._(
+ hostName: argResults[hostnameOption] as String,
+ buildUpdates: buildUpdates,
+ logRequests: argResults[logRequestsOption] as bool,
+ serveTargets: serveTargets,
+ deleteFilesByDefault: argResults[deleteFilesByDefaultOption] as bool,
+ enableLowResourcesMode: argResults[lowResourcesModeOption] as bool,
+ configKey: argResults[configOption] as String,
+ outputMap: _parseOutputMap(argResults),
+ outputSymlinksOnly: argResults[symlinkOption] as bool,
+ trackPerformance: argResults[trackPerformanceOption] as bool,
+ skipBuildScriptCheck: argResults[skipBuildScriptCheckOption] as bool,
+ verbose: argResults[verboseOption] as bool,
+ builderConfigOverrides:
+ _parseBuilderConfigOverrides(argResults[defineOption], rootPackage),
+ isReleaseBuild: argResults[releaseOption] as bool,
+ buildDirs: buildDirs.toList(),
+ logPerformanceDir: argResults[logPerformanceOption] as String,
+ );
+ }
+}
+
+/// A target to serve, representing a directory and a port.
+class ServeTarget {
+ final String dir;
+ final int port;
+
+ ServeTarget(this.dir, this.port);
+}
+
+Set<String> _buildDirsFromOutputMap(Map<String, String> outputMap) =>
+ outputMap.values.where((v) => v != null).toSet();
+
+Map<String, Map<String, dynamic>> _parseBuilderConfigOverrides(
+ dynamic parsedArg, String rootPackage) {
+ final builderConfigOverrides = <String, Map<String, dynamic>>{};
+ if (parsedArg == null) return builderConfigOverrides;
+ var allArgs = parsedArg is List<String> ? parsedArg : [parsedArg as String];
+ for (final define in allArgs) {
+ final parts = define.split('=');
+ const expectedFormat = '--define "<builder_key>=<option>=<value>"';
+ if (parts.length < 3) {
+ throw ArgumentError.value(
+ define,
+ defineOption,
+ 'Expected at least 2 `=` signs, should be of the format like '
+ '$expectedFormat');
+ } else if (parts.length > 3) {
+ var rest = parts.sublist(2);
+ parts
+ ..removeRange(2, parts.length)
+ ..add(rest.join('='));
+ }
+ final builderKey = normalizeBuilderKeyUsage(parts[0], rootPackage);
+ final option = parts[1];
+ dynamic value;
+ // Attempt to parse the value as JSON, and if that fails then treat it as
+ // a normal string.
+ try {
+ value = json.decode(parts[2]);
+ } on FormatException catch (_) {
+ value = parts[2];
+ }
+ final config = builderConfigOverrides.putIfAbsent(
+ builderKey, () => <String, dynamic>{});
+ if (config.containsKey(option)) {
+ throw ArgumentError(
+ 'Got duplicate overrides for the same builder option: '
+ '$builderKey=$option. Only one is allowed.');
+ }
+ config[option] = value;
+ }
+ return builderConfigOverrides;
+}
+
+/// Returns a map of output directory to root input directory to be used
+/// for merging.
+///
+/// Each output option is split on `:` where the first value is the
+/// root input directory and the second value output directory.
+/// If no delimeter is provided the root input directory will be null.
+Map<String, String> _parseOutputMap(ArgResults argResults) {
+ var outputs = argResults[outputOption] as List<String>;
+ if (outputs == null) return null;
+ var result = <String, String>{};
+
+ void checkExisting(String outputDir) {
+ if (result.containsKey(outputDir)) {
+ throw ArgumentError.value(outputs.join(' '), '--output',
+ 'Duplicate output directories are not allowed, got');
+ }
+ }
+
+ for (var option in argResults[outputOption] as List<String>) {
+ var split = option.split(':');
+ if (split.length == 1) {
+ var output = split.first;
+ checkExisting(output);
+ result[output] = null;
+ } else if (split.length >= 2) {
+ var output = split.sublist(1).join(':');
+ checkExisting(output);
+ var root = split.first;
+ if (root.contains('/')) {
+ throw ArgumentError.value(
+ option, '--output', 'Input root can not be nested');
+ }
+ result[output] = split.first;
+ }
+ }
+ return result;
+}
diff --git a/build_runner/lib/src/entrypoint/run.dart b/build_runner/lib/src/entrypoint/run.dart
new file mode 100644
index 0000000..3d76725
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/run.dart
@@ -0,0 +1,64 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/ansi.dart' as ansi;
+import 'package:io/io.dart' show ExitCode;
+
+import 'runner.dart';
+
+/// A common entry point to parse command line arguments and build or serve with
+/// [builders].
+///
+/// Returns the exit code that should be set when the calling process exits. `0`
+/// implies success.
+Future<int> run(List<String> args, List<BuilderApplication> builders) async {
+ var runner = BuildCommandRunner(builders);
+ try {
+ var result = await runner.run(args);
+ return result ?? 0;
+ } on UsageException catch (e) {
+ print(ansi.red.wrap(e.message));
+ print('');
+ print(e.usage);
+ return ExitCode.usage.code;
+ } on ArgumentError catch (e) {
+ print(ansi.red.wrap(e.toString()));
+ return ExitCode.usage.code;
+ } on CannotBuildException {
+ // A message should have already been logged.
+ return ExitCode.config.code;
+ } on BuildScriptChangedException {
+ _deleteAssetGraph();
+ if (_runningFromSnapshot) _deleteSelf();
+ return ExitCode.tempFail.code;
+ } on BuildConfigChangedException {
+ return ExitCode.tempFail.code;
+ }
+}
+
+/// Deletes the asset graph for the current build script from disk.
+void _deleteAssetGraph() {
+ var graph = File(assetGraphPath);
+ if (graph.existsSync()) {
+ graph.deleteSync();
+ }
+}
+
+/// Deletes the current running script.
+///
+/// This should only happen if the current script is a snapshot, and it has
+/// been invalidated.
+void _deleteSelf() {
+ var self = File(Platform.script.toFilePath());
+ if (self.existsSync()) {
+ self.deleteSync();
+ }
+}
+
+bool get _runningFromSnapshot => !Platform.script.path.endsWith('.dart');
diff --git a/build_runner/lib/src/entrypoint/runner.dart b/build_runner/lib/src/entrypoint/runner.dart
new file mode 100644
index 0000000..0c0552d
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/runner.dart
@@ -0,0 +1,40 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:args/command_runner.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+
+import 'build.dart';
+import 'clean.dart';
+import 'daemon.dart';
+import 'serve.dart';
+import 'test.dart';
+import 'watch.dart';
+
+/// Unified command runner for all build_runner commands.
+class BuildCommandRunner extends CommandRunner<int> {
+ final List<BuilderApplication> builderApplications;
+
+ final packageGraph = PackageGraph.forThisPackage();
+
+ BuildCommandRunner(List<BuilderApplication> builderApplications)
+ : builderApplications = List.unmodifiable(builderApplications),
+ super('build_runner', 'Unified interface for running Dart builds.') {
+ addCommand(DaemonCommand());
+ addCommand(BuildCommand());
+ addCommand(WatchCommand());
+ addCommand(ServeCommand());
+ addCommand(TestCommand(packageGraph));
+ addCommand(CleanCommand());
+ }
+
+ // CommandRunner._usageWithoutDescription is private – this is a reasonable
+ // facsimile.
+ /// Returns [usage] with [description] removed from the beginning.
+ String get usageWithoutDescription => LineSplitter.split(usage)
+ .skipWhile((line) => line == description || line.isEmpty)
+ .join('\n');
+}
diff --git a/build_runner/lib/src/entrypoint/serve.dart b/build_runner/lib/src/entrypoint/serve.dart
new file mode 100644
index 0000000..6d03f79
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/serve.dart
@@ -0,0 +1,159 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:http_multi_server/http_multi_server.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/io.dart';
+import 'package:logging/logging.dart';
+import 'package:shelf/shelf_io.dart';
+
+import '../generate/build.dart';
+import '../logging/std_io_logging.dart';
+import '../server/server.dart';
+import 'options.dart';
+import 'watch.dart';
+
+/// Extends [WatchCommand] with dev server functionality.
+class ServeCommand extends WatchCommand {
+ ServeCommand() {
+ argParser
+ ..addOption(hostnameOption,
+ help: 'Specify the hostname to serve on', defaultsTo: 'localhost')
+ ..addFlag(logRequestsOption,
+ defaultsTo: false,
+ negatable: false,
+ help: 'Enables logging for each request to the server.')
+ ..addFlag(liveReloadOption,
+ defaultsTo: false,
+ negatable: false,
+ help: 'Enables automatic page reloading on rebuilds. '
+ "Can't be used together with --$hotReloadOption.")
+ ..addFlag(hotReloadOption,
+ defaultsTo: false,
+ negatable: false,
+ help: 'Enables automatic reloading of changed modules on rebuilds. '
+ "Can't be used together with --$liveReloadOption.");
+ }
+
+ @override
+ String get invocation => '${super.invocation} [<directory>[:<port>]]...';
+
+ @override
+ String get name => 'serve';
+
+ @override
+ String get description =>
+ 'Runs a development server that serves the specified targets and runs '
+ 'builds based on file system updates.';
+
+ @override
+ ServeOptions readOptions() => ServeOptions.fromParsedArgs(
+ argResults, argResults.rest, packageGraph.root.name, this);
+
+ @override
+ Future<int> run() async {
+ final servers = <ServeTarget, HttpServer>{};
+ return _runServe(servers).whenComplete(() async {
+ await Future.wait(
+ servers.values.map((server) => server.close(force: true)));
+ });
+ }
+
+ Future<int> _runServe(Map<ServeTarget, HttpServer> servers) async {
+ var options = readOptions();
+ try {
+ await Future.wait(options.serveTargets.map((target) async {
+ servers[target] = await _bindServer(options, target);
+ }));
+ } on SocketException catch (e) {
+ var listener = Logger.root.onRecord.listen(stdIOLogListener());
+ logger.severe(
+ 'Error starting server at ${e.address.address}:${e.port}, address '
+ 'is already in use. Please kill the server running on that port or '
+ 'serve on a different port and restart this process.');
+ await listener.cancel();
+ return ExitCode.osError.code;
+ }
+
+ var handler = await watch(
+ builderApplications,
+ deleteFilesByDefault: options.deleteFilesByDefault,
+ enableLowResourcesMode: options.enableLowResourcesMode,
+ configKey: options.configKey,
+ outputMap: options.outputMap,
+ outputSymlinksOnly: options.outputSymlinksOnly,
+ packageGraph: packageGraph,
+ trackPerformance: options.trackPerformance,
+ skipBuildScriptCheck: options.skipBuildScriptCheck,
+ verbose: options.verbose,
+ builderConfigOverrides: options.builderConfigOverrides,
+ isReleaseBuild: options.isReleaseBuild,
+ buildDirs: options.buildDirs,
+ logPerformanceDir: options.logPerformanceDir,
+ );
+
+ if (handler == null) return ExitCode.config.code;
+
+ servers.forEach((target, server) {
+ serveRequests(
+ server,
+ handler.handlerFor(target.dir,
+ logRequests: options.logRequests,
+ buildUpdates: options.buildUpdates));
+ });
+
+ _ensureBuildWebCompilersDependency(packageGraph, logger);
+
+ final completer = Completer<int>();
+ handleBuildResultsStream(handler.buildResults, completer);
+ _logServerPorts(handler, options, logger);
+ return completer.future;
+ }
+
+ void _logServerPorts(
+ ServeHandler serveHandler, ServeOptions options, Logger logger) async {
+ await serveHandler.currentBuild;
+ // Warn if in serve mode with no servers.
+ if (options.serveTargets.isEmpty) {
+ logger.warning(
+ 'Found no known web directories to serve, but running in `serve` '
+ 'mode. You may expliclity provide a directory to serve with trailing '
+ 'args in <dir>[:<port>] format.');
+ } else {
+ for (var target in options.serveTargets) {
+ stdout.writeln('Serving `${target.dir}` on '
+ 'http://${options.hostName}:${target.port}');
+ }
+ }
+ }
+}
+
+Future<HttpServer> _bindServer(ServeOptions options, ServeTarget target) {
+ switch (options.hostName) {
+ case 'any':
+ // Listens on both IPv6 and IPv4
+ return HttpServer.bind(InternetAddress.anyIPv6, target.port);
+ case 'localhost':
+ return HttpMultiServer.loopback(target.port);
+ default:
+ return HttpServer.bind(options.hostName, target.port);
+ }
+}
+
+void _ensureBuildWebCompilersDependency(PackageGraph packageGraph, Logger log) {
+ if (!packageGraph.allPackages.containsKey('build_web_compilers')) {
+ log.warning('''
+ Missing dev dependency on package:build_web_compilers, which is required to serve Dart compiled to JavaScript.
+
+ Please update your dev_dependencies section of your pubspec.yaml:
+
+ dev_dependencies:
+ build_runner: any
+ build_test: any
+ build_web_compilers: any''');
+ }
+}
diff --git a/build_runner/lib/src/entrypoint/test.dart b/build_runner/lib/src/entrypoint/test.dart
new file mode 100644
index 0000000..b669a1f
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/test.dart
@@ -0,0 +1,165 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/io.dart';
+import 'package:path/path.dart' as p;
+import 'package:pub_semver/pub_semver.dart';
+import 'package:pubspec_parse/pubspec_parse.dart';
+
+import '../generate/build.dart';
+import 'base_command.dart';
+import 'options.dart';
+
+/// A command that does a single build and then runs tests using the compiled
+/// assets.
+class TestCommand extends BuildRunnerCommand {
+ TestCommand(PackageGraph packageGraph)
+ : super(
+ // Use symlinks by default, if package:test supports it.
+ symlinksDefault:
+ _packageTestSupportsSymlinks(packageGraph) && !Platform.isWindows,
+ );
+
+ @override
+ String get invocation =>
+ '${super.invocation.replaceFirst('[arguments]', '[build-arguments]')} '
+ '[-- [test-arguments]]';
+
+ @override
+ String get name => 'test';
+
+ @override
+ String get description =>
+ 'Performs a single build of the test directory only and then runs tests '
+ 'using the compiled assets.';
+
+ @override
+ SharedOptions readOptions() {
+ // This command doesn't allow specifying directories to build, instead it
+ // always builds the `test` directory.
+ //
+ // Here we validate that [argResults.rest] is exactly equal to all the
+ // arguments after the `--`.
+ if (argResults.rest.isNotEmpty) {
+ void throwUsageException() {
+ throw UsageException(
+ 'The `test` command does not support positional args before the, '
+ '`--` separator, which should separate build args from test args.',
+ usage);
+ }
+
+ var separatorPos = argResults.arguments.indexOf('--');
+ if (separatorPos < 0) {
+ throwUsageException();
+ }
+ var expectedRest = argResults.arguments.skip(separatorPos + 1).toList();
+ if (argResults.rest.length != expectedRest.length) {
+ throwUsageException();
+ }
+ for (var i = 0; i < argResults.rest.length; i++) {
+ if (expectedRest[i] != argResults.rest[i]) {
+ throwUsageException();
+ }
+ }
+ }
+
+ return SharedOptions.fromParsedArgs(
+ argResults, ['test'], packageGraph.root.name, this);
+ }
+
+ @override
+ Future<int> run() async {
+ SharedOptions options;
+ // We always run our tests in a temp dir.
+ var tempPath = Directory.systemTemp
+ .createTempSync('build_runner_test')
+ .absolute
+ .uri
+ .toFilePath();
+ try {
+ _ensureBuildTestDependency(packageGraph);
+ options = readOptions();
+ var outputMap = (options.outputMap ?? {})..addAll({tempPath: null});
+ var result = await build(
+ builderApplications,
+ deleteFilesByDefault: options.deleteFilesByDefault,
+ enableLowResourcesMode: options.enableLowResourcesMode,
+ configKey: options.configKey,
+ outputMap: outputMap,
+ outputSymlinksOnly: options.outputSymlinksOnly,
+ packageGraph: packageGraph,
+ trackPerformance: options.trackPerformance,
+ skipBuildScriptCheck: options.skipBuildScriptCheck,
+ verbose: options.verbose,
+ builderConfigOverrides: options.builderConfigOverrides,
+ isReleaseBuild: options.isReleaseBuild,
+ buildDirs: options.buildDirs,
+ logPerformanceDir: options.logPerformanceDir,
+ );
+
+ if (result.status == BuildStatus.failure) {
+ stdout.writeln('Skipping tests due to build failure');
+ return result.failureType.exitCode;
+ }
+
+ return await _runTests(tempPath);
+ } on _BuildTestDependencyError catch (e) {
+ stdout.writeln(e);
+ return ExitCode.config.code;
+ } finally {
+ // Clean up the output dir.
+ await Directory(tempPath).delete(recursive: true);
+ }
+ }
+
+ /// Runs tests using [precompiledPath] as the precompiled test directory.
+ Future<int> _runTests(String precompiledPath) async {
+ stdout.writeln('Running tests...\n');
+ var extraTestArgs = argResults.rest;
+ var testProcess = await Process.start(
+ pubBinary,
+ [
+ 'run',
+ 'test',
+ '--precompiled',
+ precompiledPath,
+ ]..addAll(extraTestArgs),
+ mode: ProcessStartMode.inheritStdio);
+ return testProcess.exitCode;
+ }
+}
+
+bool _packageTestSupportsSymlinks(PackageGraph packageGraph) {
+ var testPackage = packageGraph['test'];
+ if (testPackage == null) return false;
+ var pubspecPath = p.join(testPackage.path, 'pubspec.yaml');
+ var pubspec = Pubspec.parse(File(pubspecPath).readAsStringSync());
+ if (pubspec.version == null) return false;
+ return pubspec.version >= Version(1, 3, 0);
+}
+
+void _ensureBuildTestDependency(PackageGraph packageGraph) {
+ if (!packageGraph.allPackages.containsKey('build_test')) {
+ throw _BuildTestDependencyError();
+ }
+}
+
+class _BuildTestDependencyError extends StateError {
+ _BuildTestDependencyError() : super('''
+Missing dev dependency on package:build_test, which is required to run tests.
+
+Please update your dev_dependencies section of your pubspec.yaml:
+
+ dev_dependencies:
+ build_runner: any
+ build_test: any
+ # If you need to run web tests, you will also need this dependency.
+ build_web_compilers: any
+''');
+}
diff --git a/build_runner/lib/src/entrypoint/watch.dart b/build_runner/lib/src/entrypoint/watch.dart
new file mode 100644
index 0000000..8e6740a
--- /dev/null
+++ b/build_runner/lib/src/entrypoint/watch.dart
@@ -0,0 +1,70 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:io/io.dart';
+
+import '../generate/build.dart';
+import 'base_command.dart';
+
+/// A command that watches the file system for updates and rebuilds as
+/// appropriate.
+class WatchCommand extends BuildRunnerCommand {
+ @override
+ String get invocation => '${super.invocation} [directories]';
+
+ @override
+ String get name => 'watch';
+
+ @override
+ String get description =>
+ 'Builds the specified targets, watching the file system for updates and '
+ 'rebuilding as appropriate.';
+
+ @override
+ Future<int> run() async {
+ var options = readOptions();
+ var handler = await watch(
+ builderApplications,
+ deleteFilesByDefault: options.deleteFilesByDefault,
+ enableLowResourcesMode: options.enableLowResourcesMode,
+ configKey: options.configKey,
+ outputMap: options.outputMap,
+ outputSymlinksOnly: options.outputSymlinksOnly,
+ packageGraph: packageGraph,
+ trackPerformance: options.trackPerformance,
+ skipBuildScriptCheck: options.skipBuildScriptCheck,
+ verbose: options.verbose,
+ builderConfigOverrides: options.builderConfigOverrides,
+ isReleaseBuild: options.isReleaseBuild,
+ buildDirs: options.buildDirs,
+ logPerformanceDir: options.logPerformanceDir,
+ );
+ if (handler == null) return ExitCode.config.code;
+
+ final completer = Completer<int>();
+ handleBuildResultsStream(handler.buildResults, completer);
+ return completer.future;
+ }
+
+ /// Listens to [buildResults], handling certain types of errors and completing
+ /// [completer] appropriately.
+ void handleBuildResultsStream(
+ Stream<BuildResult> buildResults, Completer<int> completer) async {
+ var subscription = buildResults.listen((result) {
+ if (completer.isCompleted) return;
+ if (result.status == BuildStatus.failure) {
+ if (result.failureType == FailureType.buildScriptChanged) {
+ completer.completeError(BuildScriptChangedException());
+ } else if (result.failureType == FailureType.buildConfigChanged) {
+ completer.completeError(BuildConfigChangedException());
+ }
+ }
+ });
+ await subscription.asFuture();
+ if (!completer.isCompleted) completer.complete(ExitCode.success.code);
+ }
+}
diff --git a/build_runner/lib/src/generate/build.dart b/build_runner/lib/src/generate/build.dart
new file mode 100644
index 0000000..824e4f3
--- /dev/null
+++ b/build_runner/lib/src/generate/build.dart
@@ -0,0 +1,191 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:build/build.dart';
+import 'package:build_runner/src/generate/terminator.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:logging/logging.dart';
+import 'package:shelf/shelf.dart';
+import 'package:watcher/watcher.dart';
+
+import '../logging/std_io_logging.dart';
+import '../package_graph/build_config_overrides.dart';
+import '../server/server.dart';
+import 'watch_impl.dart' as watch_impl;
+
+/// Runs all of the BuilderApplications in [builders] once.
+///
+/// By default, the user will be prompted to delete any files which already
+/// exist but were not generated by this specific build script. The
+/// [deleteFilesByDefault] option can be set to `true` to skip this prompt.
+///
+/// A [packageGraph] may be supplied, otherwise one will be constructed using
+/// [PackageGraph.forThisPackage]. The default functionality assumes you are
+/// running in the root directory of a package, with both a `pubspec.yaml` and
+/// `.packages` file present.
+///
+/// A [reader] and [writer] may also be supplied, which can read/write assets
+/// to arbitrary locations or file systems. By default they will write directly
+/// to the root package directory, and will use the [packageGraph] to know where
+/// to read files from.
+///
+/// Logging may be customized by passing a custom [logLevel] below which logs
+/// will be ignored, as well as an [onLog] handler which defaults to [print].
+///
+/// The [terminateEventStream] is a stream which can send termination events.
+/// By default the [ProcessSignal.sigint] stream is used. In this mode, it
+/// will simply consume the first event and allow the build to continue.
+/// Multiple termination events will cause a normal shutdown.
+///
+/// If [outputMap] is supplied then after each build a merged output directory
+/// will be created for each value in the map which contains all original
+/// sources and built sources contained in the provided path.
+///
+/// If [outputSymlinksOnly] is `true`, then the merged output directories will
+/// contain only symlinks, which is much faster but not generally suitable for
+/// deployment.
+///
+/// If [verbose] is `true` then verbose logging will be enabled. This changes
+/// the default [logLevel] to [Level.ALL] and removes stack frame folding, among
+/// other things.
+Future<BuildResult> build(List<BuilderApplication> builders,
+ {bool deleteFilesByDefault,
+ bool assumeTty,
+ String configKey,
+ PackageGraph packageGraph,
+ RunnerAssetReader reader,
+ RunnerAssetWriter writer,
+ Resolvers resolvers,
+ Level logLevel,
+ onLog(LogRecord record),
+ Stream terminateEventStream,
+ bool enableLowResourcesMode,
+ Map<String, String> outputMap,
+ bool outputSymlinksOnly,
+ bool trackPerformance,
+ bool skipBuildScriptCheck,
+ bool verbose,
+ bool isReleaseBuild,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ List<String> buildDirs,
+ String logPerformanceDir}) async {
+ builderConfigOverrides ??= const {};
+ packageGraph ??= PackageGraph.forThisPackage();
+ var environment = OverrideableEnvironment(
+ IOEnvironment(
+ packageGraph,
+ assumeTty: assumeTty,
+ outputMap: outputMap,
+ outputSymlinksOnly: outputSymlinksOnly,
+ ),
+ reader: reader,
+ writer: writer,
+ onLog: onLog ?? stdIOLogListener(assumeTty: assumeTty, verbose: verbose));
+ var logSubscription =
+ LogSubscription(environment, verbose: verbose, logLevel: logLevel);
+ var options = await BuildOptions.create(
+ logSubscription,
+ deleteFilesByDefault: deleteFilesByDefault,
+ packageGraph: packageGraph,
+ skipBuildScriptCheck: skipBuildScriptCheck,
+ overrideBuildConfig:
+ await findBuildConfigOverrides(packageGraph, configKey),
+ enableLowResourcesMode: enableLowResourcesMode,
+ trackPerformance: trackPerformance,
+ logPerformanceDir: logPerformanceDir,
+ resolvers: resolvers,
+ );
+ var terminator = Terminator(terminateEventStream);
+ try {
+ var build = await BuildRunner.create(
+ options,
+ environment,
+ builders,
+ builderConfigOverrides,
+ isReleaseBuild: isReleaseBuild ?? false,
+ );
+ var result = await build.run({}, buildDirs: buildDirs);
+ await build?.beforeExit();
+ return result;
+ } finally {
+ await terminator.cancel();
+ await options.logListener.cancel();
+ }
+}
+
+/// Same as [build], except it watches the file system and re-runs builds
+/// automatically.
+///
+/// Call [ServeHandler.handlerFor] to create a [Handler] for use with
+/// `package:shelf`. Requests for assets will be blocked while builds are
+/// running then served with the latest version of the asset. Only source and
+/// generated assets can be served through this handler.
+///
+/// The [debounceDelay] controls how often builds will run. As long as files
+/// keep changing with less than that amount of time apart, builds will be put
+/// off.
+///
+/// The [directoryWatcherFactory] allows you to inject a way of creating custom
+/// `DirectoryWatcher`s. By default a normal `DirectoryWatcher` will be used.
+///
+/// The [terminateEventStream] is a stream which can send termination events.
+/// By default the [ProcessSignal.sigint] stream is used. In this mode, the
+/// first event will allow any ongoing builds to finish, and then the program
+/// will complete normally. Subsequent events are not handled (and will
+/// typically cause a shutdown).
+///
+/// If [outputMap] is supplied then after each build a merged output directory
+/// will be created for each value in the map which contains all original
+/// sources and built sources contained in the provided path.
+Future<ServeHandler> watch(List<BuilderApplication> builders,
+ {bool deleteFilesByDefault,
+ bool assumeTty,
+ String configKey,
+ PackageGraph packageGraph,
+ RunnerAssetReader reader,
+ RunnerAssetWriter writer,
+ Resolvers resolvers,
+ Level logLevel,
+ onLog(LogRecord record),
+ Duration debounceDelay,
+ DirectoryWatcher Function(String) directoryWatcherFactory,
+ Stream terminateEventStream,
+ bool enableLowResourcesMode,
+ Map<String, String> outputMap,
+ bool outputSymlinksOnly,
+ bool trackPerformance,
+ bool skipBuildScriptCheck,
+ bool verbose,
+ bool isReleaseBuild,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ List<String> buildDirs,
+ String logPerformanceDir}) =>
+ watch_impl.watch(
+ builders,
+ assumeTty: assumeTty,
+ deleteFilesByDefault: deleteFilesByDefault,
+ configKey: configKey,
+ packageGraph: packageGraph,
+ reader: reader,
+ writer: writer,
+ resolvers: resolvers,
+ logLevel: logLevel,
+ onLog: onLog,
+ debounceDelay: debounceDelay,
+ directoryWatcherFactory: directoryWatcherFactory,
+ terminateEventStream: terminateEventStream,
+ enableLowResourcesMode: enableLowResourcesMode,
+ outputMap: outputMap,
+ outputSymlinksOnly: outputSymlinksOnly,
+ trackPerformance: trackPerformance,
+ skipBuildScriptCheck: skipBuildScriptCheck,
+ verbose: verbose,
+ builderConfigOverrides: builderConfigOverrides,
+ isReleaseBuild: isReleaseBuild,
+ buildDirs: buildDirs,
+ logPerformanceDir: logPerformanceDir,
+ );
diff --git a/build_runner/lib/src/generate/directory_watcher_factory.dart b/build_runner/lib/src/generate/directory_watcher_factory.dart
new file mode 100644
index 0000000..11e9c7b
--- /dev/null
+++ b/build_runner/lib/src/generate/directory_watcher_factory.dart
@@ -0,0 +1,13 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:io';
+
+import 'package:watcher/watcher.dart';
+
+DirectoryWatcher defaultDirectoryWatcherFactory(String path) =>
+ // TODO: Use `DirectoryWatcher` on windows. See the following issues:
+ // - https://github.com/dart-lang/build/issues/1031
+ // - https://github.com/dart-lang/watcher/issues/52
+ Platform.isWindows ? PollingDirectoryWatcher(path) : DirectoryWatcher(path);
diff --git a/build_runner/lib/src/generate/terminator.dart b/build_runner/lib/src/generate/terminator.dart
new file mode 100644
index 0000000..da6c07f
--- /dev/null
+++ b/build_runner/lib/src/generate/terminator.dart
@@ -0,0 +1,38 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+/// Fires [shouldTerminate] once a `SIGINT` is intercepted.
+///
+/// The `SIGINT` stream can optionally be replaced with another Stream in the
+/// constructor. [cancel] should be called after work is finished. If multiple
+/// events are receieved on the terminate event stream before work is finished
+/// the process will be terminated with [exit].
+class Terminator {
+ /// A Future that fires when a signal has been received indicating that builds
+ /// should stop.
+ final Future shouldTerminate;
+ final StreamSubscription _subscription;
+
+ factory Terminator([Stream terminateEventStream]) {
+ var shouldTerminate = Completer();
+ terminateEventStream ??= ProcessSignal.sigint.watch();
+ var numEventsSeen = 0;
+ var terminateListener = terminateEventStream.listen((_) {
+ numEventsSeen++;
+ if (numEventsSeen == 1) {
+ shouldTerminate.complete();
+ } else {
+ exit(2);
+ }
+ });
+ return Terminator._(shouldTerminate.future, terminateListener);
+ }
+
+ Terminator._(this.shouldTerminate, this._subscription);
+
+ Future cancel() => _subscription.cancel();
+}
diff --git a/build_runner/lib/src/generate/watch_impl.dart b/build_runner/lib/src/generate/watch_impl.dart
new file mode 100644
index 0000000..8a898cc
--- /dev/null
+++ b/build_runner/lib/src/generate/watch_impl.dart
@@ -0,0 +1,343 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+
+import 'package:build/build.dart';
+import 'package:build_config/build_config.dart';
+import 'package:build_runner/src/package_graph/build_config_overrides.dart';
+import 'package:build_runner/src/watcher/asset_change.dart';
+import 'package:build_runner/src/watcher/change_filter.dart';
+import 'package:build_runner/src/watcher/collect_changes.dart';
+import 'package:build_runner/src/watcher/delete_writer.dart';
+import 'package:build_runner/src/watcher/graph_watcher.dart';
+import 'package:build_runner/src/watcher/node_watcher.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/asset_graph/graph.dart';
+import 'package:build_runner_core/src/generate/build_impl.dart';
+import 'package:crypto/crypto.dart';
+import 'package:logging/logging.dart';
+import 'package:pedantic/pedantic.dart';
+import 'package:stream_transform/stream_transform.dart';
+import 'package:watcher/watcher.dart';
+
+import '../logging/std_io_logging.dart';
+import '../server/server.dart';
+import 'terminator.dart';
+
+final _logger = Logger('Watch');
+
+Future<ServeHandler> watch(
+ List<BuilderApplication> builders, {
+ bool deleteFilesByDefault,
+ bool assumeTty,
+ String configKey,
+ PackageGraph packageGraph,
+ RunnerAssetReader reader,
+ RunnerAssetWriter writer,
+ Resolvers resolvers,
+ Level logLevel,
+ onLog(LogRecord record),
+ Duration debounceDelay,
+ DirectoryWatcher Function(String) directoryWatcherFactory,
+ Stream terminateEventStream,
+ bool skipBuildScriptCheck,
+ bool enableLowResourcesMode,
+ Map<String, BuildConfig> overrideBuildConfig,
+ Map<String, String> outputMap,
+ bool outputSymlinksOnly,
+ bool trackPerformance,
+ bool verbose,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ bool isReleaseBuild,
+ List<String> buildDirs,
+ String logPerformanceDir,
+}) async {
+ builderConfigOverrides ??= const {};
+ packageGraph ??= PackageGraph.forThisPackage();
+
+ var environment = OverrideableEnvironment(
+ IOEnvironment(packageGraph,
+ assumeTty: assumeTty,
+ outputMap: outputMap,
+ outputSymlinksOnly: outputSymlinksOnly),
+ reader: reader,
+ writer: writer,
+ onLog: onLog ?? stdIOLogListener(assumeTty: assumeTty, verbose: verbose));
+ var logSubscription =
+ LogSubscription(environment, verbose: verbose, logLevel: logLevel);
+ overrideBuildConfig ??=
+ await findBuildConfigOverrides(packageGraph, configKey);
+ var options = await BuildOptions.create(
+ logSubscription,
+ deleteFilesByDefault: deleteFilesByDefault,
+ packageGraph: packageGraph,
+ overrideBuildConfig: overrideBuildConfig,
+ debounceDelay: debounceDelay,
+ skipBuildScriptCheck: skipBuildScriptCheck,
+ enableLowResourcesMode: enableLowResourcesMode,
+ trackPerformance: trackPerformance,
+ logPerformanceDir: logPerformanceDir,
+ resolvers: resolvers,
+ );
+ var terminator = Terminator(terminateEventStream);
+
+ var watch = _runWatch(
+ options,
+ environment,
+ builders,
+ builderConfigOverrides,
+ terminator.shouldTerminate,
+ directoryWatcherFactory,
+ configKey,
+ outputMap?.isNotEmpty == true,
+ buildDirs,
+ isReleaseMode: isReleaseBuild ?? false);
+
+ unawaited(watch.buildResults.drain().then((_) async {
+ await terminator.cancel();
+ await options.logListener.cancel();
+ }));
+
+ return createServeHandler(watch);
+}
+
+/// Repeatedly run builds as files change on disk until [until] fires.
+///
+/// Sets up file watchers and collects changes then triggers new builds. When
+/// [until] fires the file watchers will be stopped and up to one additional
+/// build may run if there were pending changes.
+///
+/// The [BuildState.buildResults] stream will end after the final build has been
+/// run.
+WatchImpl _runWatch(
+ BuildOptions options,
+ BuildEnvironment environment,
+ List<BuilderApplication> builders,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ Future until,
+ DirectoryWatcher Function(String) directoryWatcherFactory,
+ String configKey,
+ bool willCreateOutputDirs,
+ List<String> buildDirs,
+ {bool isReleaseMode = false}) =>
+ WatchImpl(options, environment, builders, builderConfigOverrides, until,
+ directoryWatcherFactory, configKey, willCreateOutputDirs, buildDirs,
+ isReleaseMode: isReleaseMode);
+
+class WatchImpl implements BuildState {
+ BuildImpl _build;
+
+ AssetGraph get assetGraph => _build?.assetGraph;
+
+ final _readyCompleter = Completer<Null>();
+ Future<Null> get ready => _readyCompleter.future;
+
+ final String _configKey; // may be null
+
+ /// Delay to wait for more file watcher events.
+ final Duration _debounceDelay;
+
+ /// Injectable factory for creating directory watchers.
+ final DirectoryWatcher Function(String) _directoryWatcherFactory;
+
+ /// Whether or not we will be creating any output directories.
+ ///
+ /// If not, then we don't care about source edits that don't have outputs.
+ final bool _willCreateOutputDirs;
+
+ /// Should complete when we need to kill the build.
+ final _terminateCompleter = Completer<Null>();
+
+ /// The [PackageGraph] for the current program.
+ final PackageGraph packageGraph;
+
+ /// The directories to build upon file changes.
+ final List<String> _buildDirs;
+
+ @override
+ Future<BuildResult> currentBuild;
+
+ /// Pending expected delete events from the build.
+ final Set<AssetId> _expectedDeletes = Set<AssetId>();
+
+ FinalizedReader _reader;
+ FinalizedReader get reader => _reader;
+
+ WatchImpl(
+ BuildOptions options,
+ BuildEnvironment environment,
+ List<BuilderApplication> builders,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ Future until,
+ this._directoryWatcherFactory,
+ this._configKey,
+ this._willCreateOutputDirs,
+ this._buildDirs,
+ {bool isReleaseMode = false})
+ : _debounceDelay = options.debounceDelay,
+ packageGraph = options.packageGraph {
+ buildResults = _run(
+ options, environment, builders, builderConfigOverrides, until,
+ isReleaseMode: isReleaseMode)
+ .asBroadcastStream();
+ }
+
+ @override
+ Stream<BuildResult> buildResults;
+
+ /// Runs a build any time relevant files change.
+ ///
+ /// Only one build will run at a time, and changes are batched.
+ ///
+ /// File watchers are scheduled synchronously.
+ Stream<BuildResult> _run(
+ BuildOptions options,
+ BuildEnvironment environment,
+ List<BuilderApplication> builders,
+ Map<String, Map<String, dynamic>> builderConfigOverrides,
+ Future until,
+ {bool isReleaseMode = false}) {
+ var watcherEnvironment = OverrideableEnvironment(environment,
+ writer: OnDeleteWriter(environment.writer, _expectedDeletes.add));
+ var firstBuildCompleter = Completer<BuildResult>();
+ currentBuild = firstBuildCompleter.future;
+ var controller = StreamController<BuildResult>();
+
+ Future<BuildResult> doBuild(List<List<AssetChange>> changes) async {
+ assert(_build != null);
+ _logger..info('${'-' * 72}\n')..info('Starting Build\n');
+ var mergedChanges = collectChanges(changes);
+
+ _expectedDeletes.clear();
+ if (!options.skipBuildScriptCheck) {
+ if (_build.buildScriptUpdates
+ .hasBeenUpdated(mergedChanges.keys.toSet())) {
+ _terminateCompleter.complete();
+ _logger.severe('Terminating builds due to build script update');
+ return BuildResult(BuildStatus.failure, [],
+ failureType: FailureType.buildScriptChanged);
+ }
+ }
+ return _build.run(mergedChanges, buildDirs: _buildDirs);
+ }
+
+ var terminate = Future.any([until, _terminateCompleter.future]).then((_) {
+ _logger.info('Terminating. No further builds will be scheduled\n');
+ });
+
+ Digest originalRootPackagesDigest;
+ final rootPackagesId = AssetId(packageGraph.root.name, '.packages');
+
+ // Start watching files immediately, before the first build is even started.
+ var graphWatcher = PackageGraphWatcher(packageGraph,
+ logger: _logger,
+ watch: (node) =>
+ PackageNodeWatcher(node, watch: _directoryWatcherFactory));
+ graphWatcher
+ .watch()
+ .asyncMap<AssetChange>((change) {
+ // Delay any events until the first build is completed.
+ if (firstBuildCompleter.isCompleted) return change;
+ return firstBuildCompleter.future.then((_) => change);
+ })
+ .asyncMap<AssetChange>((change) {
+ var id = change.id;
+ assert(originalRootPackagesDigest != null);
+ if (id == rootPackagesId) {
+ // Kill future builds if the root packages file changes.
+ return watcherEnvironment.reader
+ .readAsBytes(rootPackagesId)
+ .then((bytes) {
+ if (md5.convert(bytes) != originalRootPackagesDigest) {
+ _terminateCompleter.complete();
+ _logger
+ .severe('Terminating builds due to package graph update, '
+ 'please restart the build.');
+ }
+ return change;
+ });
+ } else if (_isBuildYaml(id) ||
+ _isConfiguredBuildYaml(id) ||
+ _isPackageBuildYamlOverride(id)) {
+ controller.add(BuildResult(BuildStatus.failure, [],
+ failureType: FailureType.buildConfigChanged));
+
+ // Kill future builds if the build.yaml files change.
+ _terminateCompleter.complete();
+ _logger.severe(
+ 'Terminating builds due to ${id.package}:${id.path} update.');
+ }
+ return change;
+ })
+ .where((change) {
+ assert(_readyCompleter.isCompleted);
+ return shouldProcess(
+ change,
+ assetGraph,
+ options,
+ _willCreateOutputDirs,
+ _expectedDeletes,
+ );
+ })
+ .transform(debounceBuffer(_debounceDelay))
+ .transform(takeUntil(terminate))
+ .transform(asyncMapBuffer((changes) => currentBuild = doBuild(changes)
+ ..whenComplete(() => currentBuild = null)))
+ .listen((BuildResult result) {
+ if (controller.isClosed) return;
+ controller.add(result);
+ })
+ .onDone(() async {
+ await currentBuild;
+ await _build?.beforeExit();
+ if (!controller.isClosed) await controller.close();
+ _logger.info('Builds finished. Safe to exit\n');
+ });
+
+ // Schedule the actual first build for the future so we can return the
+ // stream synchronously.
+ () async {
+ await logTimedAsync(_logger, 'Waiting for all file watchers to be ready',
+ () => graphWatcher.ready);
+ originalRootPackagesDigest = md5
+ .convert(await watcherEnvironment.reader.readAsBytes(rootPackagesId));
+
+ BuildResult firstBuild;
+ try {
+ _build = await BuildImpl.create(
+ options, watcherEnvironment, builders, builderConfigOverrides,
+ isReleaseBuild: isReleaseMode);
+
+ firstBuild = await _build.run({}, buildDirs: _buildDirs);
+ } on CannotBuildException {
+ _terminateCompleter.complete();
+
+ firstBuild = BuildResult(BuildStatus.failure, []);
+ } on BuildScriptChangedException {
+ _terminateCompleter.complete();
+
+ firstBuild = BuildResult(BuildStatus.failure, [],
+ failureType: FailureType.buildScriptChanged);
+ }
+
+ _reader = _build?.finalizedReader;
+ _readyCompleter.complete(null);
+ // It is possible this is already closed if the user kills the process
+ // early, which results in an exception without this check.
+ if (!controller.isClosed) controller.add(firstBuild);
+ firstBuildCompleter.complete(firstBuild);
+ }();
+
+ return controller.stream;
+ }
+
+ bool _isBuildYaml(AssetId id) => id.path == 'build.yaml';
+ bool _isConfiguredBuildYaml(AssetId id) =>
+ id.package == packageGraph.root.name &&
+ id.path == 'build.$_configKey.yaml';
+ bool _isPackageBuildYamlOverride(AssetId id) =>
+ id.package == packageGraph.root.name &&
+ id.path.contains(_packageBuildYamlRegexp);
+ final _packageBuildYamlRegexp = RegExp(r'^[a-z0-9_]+\.build\.yaml$');
+}
diff --git a/build_runner/lib/src/logging/std_io_logging.dart b/build_runner/lib/src/logging/std_io_logging.dart
new file mode 100644
index 0000000..be5b8b2
--- /dev/null
+++ b/build_runner/lib/src/logging/std_io_logging.dart
@@ -0,0 +1,89 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:io/ansi.dart';
+import 'package:logging/logging.dart';
+import 'package:stack_trace/stack_trace.dart';
+
+Function(LogRecord) stdIOLogListener({bool assumeTty, bool verbose}) =>
+ (record) => overrideAnsiOutput(assumeTty == true || ansiOutputEnabled, () {
+ _stdIOLogListener(record, verbose: verbose ?? false);
+ });
+
+StringBuffer colorLog(LogRecord record, {bool verbose}) {
+ AnsiCode color;
+ if (record.level < Level.WARNING) {
+ color = cyan;
+ } else if (record.level < Level.SEVERE) {
+ color = yellow;
+ } else {
+ color = red;
+ }
+ final level = color.wrap('[${record.level}]');
+ final eraseLine = ansiOutputEnabled && !verbose ? '\x1b[2K\r' : '';
+ var lines = <Object>[
+ '$eraseLine$level ${_loggerName(record, verbose)}${record.message}'
+ ];
+
+ if (record.error != null) {
+ lines.add(record.error);
+ }
+
+ if (record.stackTrace != null && verbose) {
+ var trace = Trace.from(record.stackTrace).foldFrames((f) {
+ return f.package == 'build_runner' || f.package == 'build';
+ }, terse: true);
+
+ lines.add(trace);
+ }
+
+ var message = StringBuffer(lines.join('\n'));
+
+ // We always add an extra newline at the end of each message, so it
+ // isn't multiline unless we see > 2 lines.
+ var multiLine = LineSplitter.split(message.toString()).length > 2;
+
+ if (record.level > Level.INFO || !ansiOutputEnabled || multiLine || verbose) {
+ // Add an extra line to the output so the last line isn't written over.
+ message.writeln('');
+ }
+ return message;
+}
+
+void _stdIOLogListener(LogRecord record, {bool verbose}) =>
+ stdout.write(colorLog(record, verbose: verbose));
+
+/// Filter out the Logger names known to come from `build_runner` and splits the
+/// header for levels >= WARNING.
+String _loggerName(LogRecord record, bool verbose) {
+ var knownNames = const [
+ 'ApplyBuilders',
+ 'Bootstrap',
+ 'Build',
+ 'BuildConfigOverrides',
+ 'BuildDefinition',
+ 'BuildOptions',
+ 'BuildScriptUpdates',
+ 'CreateOutputDir',
+ 'Entrypoint',
+ 'Heartbeat',
+ 'IOEnvironment',
+ 'Serve',
+ 'Watch',
+ 'build_runner',
+ // commands
+ 'build',
+ 'clean',
+ 'serve',
+ 'test',
+ 'watch',
+ ];
+ var maybeSplit = record.level >= Level.WARNING ? '\n' : '';
+ return verbose || !knownNames.contains(record.loggerName)
+ ? '${record.loggerName}:$maybeSplit'
+ : '';
+}
diff --git a/build_runner/lib/src/package_graph/build_config_overrides.dart b/build_runner/lib/src/package_graph/build_config_overrides.dart
new file mode 100644
index 0000000..64f6130
--- /dev/null
+++ b/build_runner/lib/src/package_graph/build_config_overrides.dart
@@ -0,0 +1,42 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:build_config/build_config.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:glob/glob.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as p;
+
+final _log = Logger('BuildConfigOverrides');
+
+Future<Map<String, BuildConfig>> findBuildConfigOverrides(
+ PackageGraph packageGraph, String configKey) async {
+ final configs = <String, BuildConfig>{};
+ final configFiles = Glob('*.build.yaml').list();
+ await for (final file in configFiles) {
+ if (file is File) {
+ final packageName = p.basename(file.path).split('.').first;
+ final packageNode = packageGraph.allPackages[packageName];
+ final yaml = file.readAsStringSync();
+ final config = BuildConfig.parse(
+ packageName, packageNode.dependencies.map((n) => n.name), yaml);
+ configs[packageName] = config;
+ }
+ }
+ if (configKey != null) {
+ final file = File('build.$configKey.yaml');
+ if (!file.existsSync()) {
+ _log.warning('Cannot find build.$configKey.yaml for specified config.');
+ throw CannotBuildException();
+ }
+ final yaml = file.readAsStringSync();
+ final config = BuildConfig.parse(packageGraph.root.name,
+ packageGraph.root.dependencies.map((n) => n.name), yaml);
+ configs[packageGraph.root.name] = config;
+ }
+ return configs;
+}
diff --git a/build_runner/lib/src/server/README.md b/build_runner/lib/src/server/README.md
new file mode 100644
index 0000000..e40bb70
--- /dev/null
+++ b/build_runner/lib/src/server/README.md
@@ -0,0 +1,4 @@
+## Regenerating the graph_vis_main.dart.js{.map} files
+
+To regenerate these files, you should use the custom build script at
+`tool/build.dart`. This supports all the normal build_runner commands.
diff --git a/build_runner/lib/src/server/asset_graph_handler.dart b/build_runner/lib/src/server/asset_graph_handler.dart
new file mode 100644
index 0000000..78921e2
--- /dev/null
+++ b/build_runner/lib/src/server/asset_graph_handler.dart
@@ -0,0 +1,145 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+import 'package:shelf/shelf.dart' as shelf;
+
+import 'package:build_runner_core/src/asset_graph/graph.dart';
+import 'package:build_runner_core/src/asset_graph/node.dart';
+import 'path_to_asset_id.dart';
+
+/// A handler for `/$graph` requests under a specific `rootDir`.
+class AssetGraphHandler {
+ final AssetReader _reader;
+ final String _rootPackage;
+ final AssetGraph _assetGraph;
+
+ AssetGraphHandler(this._reader, this._rootPackage, this._assetGraph);
+
+ /// Returns a response with the information about a specific node in the
+ /// graph.
+ ///
+ /// For an empty path, returns the HTML page to render the graph.
+ ///
+ /// For queries with `q=QUERY` will look for the assetNode referenced.
+ /// QUERY can be an [AssetId] or a path.
+ ///
+ /// [AssetId] as `package|path`
+ ///
+ /// path as:
+ /// - `packages/<package>/<path_under_lib>`
+ /// - `<path_under_root_package>`
+ /// - `<path_under_rootDir>`
+ ///
+ /// There may be some ambiguity between paths which are under the top-level of
+ /// the root package, and those which are under the rootDir. Preference is
+ /// given to the asset (if it exists) which is not under the implicit
+ /// `rootDir`. For instance if the request is `$graph/web/main.dart` this will
+ /// prefer to serve `<package>|web/main.dart`, but if it does not exist will
+ /// fall back to `<package>|web/web/main.dart`.
+ FutureOr<shelf.Response> handle(shelf.Request request, String rootDir) async {
+ switch (request.url.path) {
+ case '':
+ if (!request.url.hasQuery) {
+ return shelf.Response.ok(
+ await _reader.readAsString(
+ AssetId('build_runner', 'lib/src/server/graph_viz.html')),
+ headers: {HttpHeaders.contentTypeHeader: 'text/html'});
+ }
+
+ var query = request.url.queryParameters['q']?.trim();
+ if (query != null && query.isNotEmpty) {
+ var filter = request.url.queryParameters['f']?.trim();
+ return _handleQuery(query, rootDir, filter: filter);
+ }
+ break;
+ case 'assets.json':
+ return _jsonResponse(_assetGraph.serialize());
+ }
+
+ return shelf.Response.notFound('Bad request: "${request.url}".');
+ }
+
+ Future<shelf.Response> _handleQuery(String query, String rootDir,
+ {String filter}) async {
+ var filterGlob = filter != null ? Glob(filter) : null;
+ var pipeIndex = query.indexOf('|');
+
+ AssetId assetId;
+ if (pipeIndex < 0) {
+ var querySplit = query.split('/');
+
+ assetId = pathToAssetId(
+ _rootPackage, querySplit.first, querySplit.skip(1).toList());
+
+ if (!_assetGraph.contains(assetId)) {
+ var secondTry = pathToAssetId(_rootPackage, rootDir, querySplit);
+
+ if (!_assetGraph.contains(secondTry)) {
+ return shelf.Response.notFound(
+ 'Could not find asset for path "$query". Tried:\n'
+ '- $assetId\n'
+ '- $secondTry');
+ }
+ assetId = secondTry;
+ }
+ } else {
+ assetId = AssetId.parse(query);
+ if (!_assetGraph.contains(assetId)) {
+ return shelf.Response.notFound(
+ 'Could not find asset in build graph: $assetId');
+ }
+ }
+ var node = _assetGraph.get(assetId);
+ var currentEdge = 0;
+ var nodes = [
+ {'id': '${node.id}', 'label': '${node.id}'}
+ ];
+ var edges = <Map<String, String>>[];
+ for (final output in node.outputs) {
+ if (filterGlob != null && !filterGlob.matches(output.toString())) {
+ continue;
+ }
+ edges.add(
+ {'from': '${node.id}', 'to': '$output', 'id': 'e${currentEdge++}'});
+ nodes.add({'id': '$output', 'label': '$output'});
+ }
+ if (node is NodeWithInputs) {
+ for (final input in node.inputs) {
+ if (filterGlob != null && !filterGlob.matches(input.toString())) {
+ continue;
+ }
+ edges.add(
+ {'from': '$input', 'to': '${node.id}', 'id': 'e${currentEdge++}'});
+ nodes.add({'id': '$input', 'label': '$input'});
+ }
+ }
+ var result = <String, dynamic>{
+ 'primary': {
+ 'id': '${node.id}',
+ 'hidden': node is GeneratedAssetNode ? node.isHidden : null,
+ 'state': node is NodeWithInputs ? '${node.state}' : null,
+ 'wasOutput': node is GeneratedAssetNode ? node.wasOutput : null,
+ 'isFailure': node is GeneratedAssetNode ? node.isFailure : null,
+ 'phaseNumber': node is NodeWithInputs ? node.phaseNumber : null,
+ 'type': node.runtimeType.toString(),
+ 'glob': node is GlobAssetNode ? node.glob.pattern : null,
+ 'lastKnownDigest': node.lastKnownDigest.toString(),
+ },
+ 'edges': edges,
+ 'nodes': nodes,
+ };
+ return _jsonResponse(_jsonUtf8Encoder.convert(result));
+ }
+}
+
+final _jsonUtf8Encoder = JsonUtf8Encoder();
+
+shelf.Response _jsonResponse(List<int> body) => shelf.Response.ok(body,
+ headers: {HttpHeaders.contentTypeHeader: 'application/json'});
diff --git a/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart b/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart
new file mode 100644
index 0000000..a2b6e8b
--- /dev/null
+++ b/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart
@@ -0,0 +1,203 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+@JS()
+library hot_reload_client;
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:html';
+
+import 'package:js/js.dart';
+import 'package:js/js_util.dart';
+
+import 'module.dart';
+import 'reload_handler.dart';
+import 'reloading_manager.dart';
+
+final _assetsDigestPath = r'$assetDigests';
+final _buildUpdatesProtocol = r'$buildUpdates';
+
+@anonymous
+@JS()
+abstract class HotReloadableLibrary {
+ /// Implement this function with any code to release resources before destroy.
+ ///
+ /// Any object returned from this function will be passed to update hooks. Use
+ /// it to save any state you need to be preserved between hot reloadings.
+ /// Try do not use any custom types here, as it might prevent their code from
+ /// reloading. Better serialise to JSON or plain types.
+ ///
+ /// This function will be called on old version of module before unloading.
+ @JS()
+ external Object hot$onDestroy();
+
+ /// Implement this function to handle update of the module itself.
+ ///
+ /// May return nullable bool. To indicate that reload completes successfully
+ /// return true. To indicate that hot-reload is undoable return false - this
+ /// will lead to full page reload. If null returned, reloading will be
+ /// propagated to parent.
+ ///
+ /// If any state was saved from previous version, it will be passed to [data].
+ ///
+ /// This function will be called on new version of module after reloading.
+ @JS()
+ external bool hot$onSelfUpdate([Object data]);
+
+ /// Implement this function to handle update of child modules.
+ ///
+ /// May return nullable bool. To indicate that reload of child completes
+ /// successfully return true. To indicate that hot-reload is undoable for this
+ /// child return false - this will lead to full page reload. If null returned,
+ /// reloading will be propagated to current module itself.
+ ///
+ /// The name of the child will be provided in [childId]. New version of child
+ /// module object will be provided in [child].
+ /// If any state was saved from previous version, it will be passed to [data].
+ ///
+ /// This function will be called on old version of module current after child
+ /// reloading.
+ @JS()
+ external bool hot$onChildUpdate(String childId, HotReloadableLibrary child,
+ [Object data]);
+}
+
+class LibraryWrapper implements Library {
+ final HotReloadableLibrary _internal;
+
+ LibraryWrapper(this._internal);
+
+ @override
+ Object onDestroy() {
+ if (_internal != null && hasProperty(_internal, r'hot$onDestroy')) {
+ return _internal.hot$onDestroy();
+ }
+ return null;
+ }
+
+ @override
+ bool onSelfUpdate([Object data]) {
+ if (_internal != null && hasProperty(_internal, r'hot$onSelfUpdate')) {
+ return _internal.hot$onSelfUpdate(data);
+ }
+ // ignore: avoid_returning_null
+ return null;
+ }
+
+ @override
+ bool onChildUpdate(String childId, Library child, [Object data]) {
+ if (_internal != null && hasProperty(_internal, r'hot$onChildUpdate')) {
+ return _internal.hot$onChildUpdate(
+ childId, (child as LibraryWrapper)._internal, data);
+ }
+ // ignore: avoid_returning_null
+ return null;
+ }
+}
+
+@JS('Map')
+abstract class JsMap<K, V> {
+ @JS()
+ external Object keys();
+
+ @JS()
+ external V get(K key);
+}
+
+@JS('Error')
+abstract class JsError {
+ @JS()
+ external String get message;
+
+ @JS()
+ external String get stack;
+}
+
+@anonymous
+@JS()
+class DartLoader {
+ @JS()
+ external JsMap<String, String> get urlToModuleId;
+
+ @JS()
+ external JsMap<String, List<String>> get moduleParentsGraph;
+
+ @JS()
+ external void forceLoadModule(String moduleId, void Function() callback,
+ void Function(JsError e) onError);
+
+ @JS()
+ external Object getModuleLibraries(String moduleId);
+}
+
+@JS(r'$dartLoader')
+external DartLoader get dartLoader;
+
+@JS('Array.from')
+external List _jsArrayFrom(Object any);
+
+@JS('Object.keys')
+external List _jsObjectKeys(Object any);
+
+@JS('Object.values')
+external List _jsObjectValues(Object any);
+
+List<K> keys<K, V>(JsMap<K, V> map) {
+ return List.from(_jsArrayFrom(map.keys()));
+}
+
+Module _moduleLibraries(String moduleId) {
+ var moduleObj = dartLoader.getModuleLibraries(moduleId);
+ if (moduleObj == null) {
+ throw HotReloadFailedException("Failed to get module '$moduleId'. "
+ "This error might appear if such module doesn't exist or isn't already loaded");
+ }
+ var moduleKeys = List<String>.from(_jsObjectKeys(moduleObj));
+ var moduleValues =
+ List<HotReloadableLibrary>.from(_jsObjectValues(moduleObj));
+ var moduleLibraries = moduleValues.map((x) => LibraryWrapper(x));
+ return Module(Map.fromIterables(moduleKeys, moduleLibraries));
+}
+
+Future<Module> _reloadModule(String moduleId) {
+ var completer = Completer<Module>();
+ var stackTrace = StackTrace.current;
+ dartLoader.forceLoadModule(moduleId, allowInterop(() {
+ completer.complete(_moduleLibraries(moduleId));
+ }),
+ allowInterop((e) => completer.completeError(
+ HotReloadFailedException(e.message), stackTrace)));
+ return completer.future;
+}
+
+void _reloadPage() {
+ window.location.reload();
+}
+
+main() async {
+ var currentOrigin = '${window.location.origin}/';
+ var modulePaths = keys(dartLoader.urlToModuleId)
+ .map((key) => key.replaceFirst(currentOrigin, ''))
+ .toList();
+ var modulePathsJson = json.encode(modulePaths);
+
+ var request = await HttpRequest.request('/$_assetsDigestPath',
+ responseType: 'json', sendData: modulePathsJson, method: 'POST');
+ var digests = (request.response as Map).cast<String, String>();
+
+ var manager = ReloadingManager(
+ _reloadModule,
+ _moduleLibraries,
+ _reloadPage,
+ (module) => dartLoader.moduleParentsGraph.get(module),
+ () => keys(dartLoader.moduleParentsGraph));
+
+ var handler = ReloadHandler(digests,
+ (path) => dartLoader.urlToModuleId.get(currentOrigin + path), manager);
+
+ var webSocket =
+ WebSocket('ws://${window.location.host}', [_buildUpdatesProtocol]);
+ webSocket.onMessage.listen((event) => handler.listener(event.data as String));
+}
diff --git a/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart.js.map b/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart.js.map
new file mode 100644
index 0000000..6fc8649
--- /dev/null
+++ b/build_runner/lib/src/server/build_updates_client/hot_reload_client.dart.js.map
@@ -0,0 +1,16 @@
+{
+ "version": 3,
+ "engine": "v2",
+ "file": "hot_reload_client.dart.js",
+ "sourceRoot": "",
+ "sources": ["org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/interceptors.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_array.dart","org-dartlang-sdk:///sdk/lib/collection/list.dart","org-dartlang-sdk:///sdk/lib/core/comparable.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_number.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_string.dart","org-dartlang-sdk:///sdk/lib/internal/iterable.dart","org-dartlang-sdk:///sdk/lib/core/errors.dart","org-dartlang-sdk:///sdk/lib/internal/sort.dart","org-dartlang-sdk:///sdk/lib/internal/cast.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/internal_patch.dart","org-dartlang-sdk:///sdk/lib/internal/symbol.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/constant_map.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_rti.dart","org-dartlang-sdk:///sdk/lib/core/exceptions.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/core_patch.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/native_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/string_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/linked_hash_map.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_names.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_primitives.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/native_typed_data.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/async_patch.dart","org-dartlang-sdk:///sdk/lib/async/future_impl.dart","org-dartlang-sdk:///sdk/lib/async/schedule_microtask.dart","org-dartlang-sdk:///sdk/lib/async/zone.dart","org-dartlang-sdk:///sdk/lib/async/stream.dart","org-dartlang-sdk:///sdk/lib/async/stream_impl.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/collection_patch.dart","org-dartlang-sdk:///sdk/lib/collection/hash_map.dart","org-dartlang-sdk:///sdk/lib/collection/iterable.dart","org-dartlang-sdk:///sdk/lib/collection/maps.dart","org-dartlang-sdk:///sdk/lib/collection/splay_tree.dart","org-dartlang-sdk:///sdk/lib/collection/queue.dart","org-dartlang-sdk:///sdk/lib/collection/set.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/convert_patch.dart","org-dartlang-sdk:///sdk/lib/convert/json.dart","org-dartlang-sdk:///sdk/lib/core/map.dart","org-dartlang-sdk:///sdk/lib/core/print.dart","org-dartlang-sdk:///sdk/lib/core/date_time.dart","org-dartlang-sdk:///sdk/lib/core/iterable.dart","org-dartlang-sdk:///sdk/lib/core/null.dart","org-dartlang-sdk:///sdk/lib/core/string_buffer.dart","org-dartlang-sdk:///sdk/lib/html/dart2js/html_dart2js.dart","org-dartlang-sdk:///sdk/lib/html/html_common/conversions_dart2js.dart","org-dartlang-sdk:///sdk/lib/html/html_common/conversions.dart","org-dartlang-sdk:///sdk/lib/js/dart2js/js_dart2js.dart","hot_reload_client.dart","org-dartlang-sdk:///sdk/lib/collection/linked_hash_map.dart","module.dart","reloading_manager.dart","reload_handler.dart","../../../../graphs/src/strongly_connected_components.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/math_patch.dart","org-dartlang-sdk:///sdk/lib/async/future.dart"],
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+ }
+}
diff --git a/build_runner/lib/src/server/build_updates_client/module.dart b/build_runner/lib/src/server/build_updates_client/module.dart
new file mode 100644
index 0000000..6604f9b
--- /dev/null
+++ b/build_runner/lib/src/server/build_updates_client/module.dart
@@ -0,0 +1,71 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+abstract class Library {
+ Object onDestroy();
+
+ bool onSelfUpdate([Object data]);
+
+ bool onChildUpdate(String childId, Library child, [Object data]);
+}
+
+/// Used for representation of amd modules that wraps several dart libraries
+/// inside
+class Module {
+ /// Grouped by absolute library path starting with `package:`
+ final Map<String, Library> libraries;
+
+ Module(this.libraries);
+
+ /// Calls onDestroy on each of underlined libraries and combines returned data
+ Map<String, Object> onDestroy() {
+ var data = <String, Object>{};
+ for (var key in libraries.keys) {
+ data[key] = libraries[key].onDestroy();
+ }
+ return data;
+ }
+
+ /// Calls onSelfUpdate on each of underlined libraries, returns aggregated
+ /// result as "maximum" assuming true < null < false. Stops execution on first
+ /// false result
+ bool onSelfUpdate(Map<String, Object> data) {
+ var result = true;
+ for (var key in libraries.keys) {
+ var success = libraries[key].onSelfUpdate(data[key]);
+ if (success == false) {
+ return false;
+ } else if (success == null) {
+ result = success;
+ }
+ }
+ return result;
+ }
+
+ /// Calls onChildUpdate on each of underlined libraries, returns aggregated
+ /// result as "maximum" assuming true < null < false. Stops execution on first
+ /// false result
+ bool onChildUpdate(String childId, Module child, Map<String, Object> data) {
+ var result = true;
+ // TODO(inayd): This is a rought implementation with lots of false positive
+ // reloads. In current implementation every library in parent module should
+ // know how to handle each library in child module. Also [roughLibraryKeyDecode]
+ // depends on unreliable implementation details. Proper implementation
+ // should rely on inner graph of dependencies between libraries in module,
+ // to require only parent libraries which really depend on child ones to
+ // handle it's updates. See dart-lang/build#1767.
+ for (var parentKey in libraries.keys) {
+ for (var childKey in child.libraries.keys) {
+ var success = libraries[parentKey]
+ .onChildUpdate(childKey, child.libraries[childKey], data[childKey]);
+ if (success == false) {
+ return false;
+ } else if (success == null) {
+ result = success;
+ }
+ }
+ }
+ return result;
+ }
+}
diff --git a/build_runner/lib/src/server/build_updates_client/reload_handler.dart b/build_runner/lib/src/server/build_updates_client/reload_handler.dart
new file mode 100644
index 0000000..0087931
--- /dev/null
+++ b/build_runner/lib/src/server/build_updates_client/reload_handler.dart
@@ -0,0 +1,36 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'reloading_manager.dart';
+
+/// Provides [listener] to handle web socket connection and reload invalidated
+/// modules using [ReloadingManager]
+class ReloadHandler {
+ final String Function(String) _moduleIdByPath;
+ final Map<String, String> _digests;
+ final ReloadingManager _reloadingManager;
+
+ ReloadHandler(this._digests, this._moduleIdByPath, this._reloadingManager);
+
+ void listener(String data) async {
+ var updatedAssetDigests = json.decode(data) as Map<String, dynamic>;
+ var moduleIdsToReload = <String>[];
+ for (var path in updatedAssetDigests.keys) {
+ if (_digests[path] == updatedAssetDigests[path]) {
+ continue;
+ }
+ var moduleId = _moduleIdByPath(path);
+ if (_digests.containsKey(path) && moduleId != null) {
+ moduleIdsToReload.add(moduleId);
+ }
+ _digests[path] = updatedAssetDigests[path] as String;
+ }
+ if (moduleIdsToReload.isNotEmpty) {
+ _reloadingManager.updateGraph();
+ await _reloadingManager.reload(moduleIdsToReload);
+ }
+ }
+}
diff --git a/build_runner/lib/src/server/build_updates_client/reloading_manager.dart b/build_runner/lib/src/server/build_updates_client/reloading_manager.dart
new file mode 100644
index 0000000..969aaee
--- /dev/null
+++ b/build_runner/lib/src/server/build_updates_client/reloading_manager.dart
@@ -0,0 +1,118 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:collection';
+
+import 'package:graphs/graphs.dart' as graphs;
+
+import 'module.dart';
+
+class HotReloadFailedException implements Exception {
+ HotReloadFailedException(this._s);
+
+ @override
+ String toString() => "HotReloadFailedException: '$_s'";
+ final String _s;
+}
+
+/// Handles reloading order and hooks invocation
+class ReloadingManager {
+ final Future<Module> Function(String) _reloadModule;
+ final Module Function(String) _moduleLibraries;
+ final void Function() _reloadPage;
+ final List<String> Function(String moduleId) _moduleParents;
+ final Iterable<String> Function() _allModules;
+
+ final Map<String, int> _moduleOrdering = {};
+ SplayTreeSet<String> _dirtyModules;
+ Completer<void> _running = Completer()..complete();
+
+ int moduleTopologicalCompare(String module1, String module2) {
+ var topological =
+ Comparable.compare(_moduleOrdering[module2], _moduleOrdering[module1]);
+ // If modules are in cycle (same strongly connected component) compare their
+ // string id, to ensure total ordering for SplayTreeSet uniqueness.
+ return topological != 0 ? topological : module1.compareTo(module2);
+ }
+
+ void updateGraph() {
+ var allModules = _allModules();
+ var stronglyConnectedComponents =
+ graphs.stronglyConnectedComponents(allModules, _moduleParents);
+ _moduleOrdering.clear();
+ for (var i = 0; i < stronglyConnectedComponents.length; i++) {
+ for (var module in stronglyConnectedComponents[i]) {
+ _moduleOrdering[module] = i;
+ }
+ }
+ }
+
+ ReloadingManager(this._reloadModule, this._moduleLibraries, this._reloadPage,
+ this._moduleParents, this._allModules) {
+ _dirtyModules = SplayTreeSet(moduleTopologicalCompare);
+ }
+
+ Future<void> reload(List<String> modules) async {
+ _dirtyModules.addAll(modules);
+
+ // As function is async, it can potentially be called second time while
+ // first invocation is still running. In this case just mark as dirty and
+ // wait until loop from the first call will do the work
+ if (!_running.isCompleted) return await _running.future;
+ _running = Completer();
+
+ var reloadedModules = 0;
+
+ try {
+ while (_dirtyModules.isNotEmpty) {
+ var moduleId = _dirtyModules.first;
+ _dirtyModules.remove(moduleId);
+ ++reloadedModules;
+
+ var existing = _moduleLibraries(moduleId);
+ var data = existing.onDestroy();
+
+ var newVersion = await _reloadModule(moduleId);
+ var success = newVersion.onSelfUpdate(data);
+ if (success == true) continue;
+ if (success == false) {
+ print("Module '$moduleId' is marked as unreloadable. "
+ 'Firing full page reload.');
+ _reloadPage();
+ _running.complete();
+ return;
+ }
+
+ var parentIds = _moduleParents(moduleId);
+ if (parentIds == null || parentIds.isEmpty) {
+ print("Module reloading wasn't handled by any of parents. "
+ 'Firing full page reload.');
+ _reloadPage();
+ _running.complete();
+ return;
+ }
+ parentIds.sort(moduleTopologicalCompare);
+ for (var parentId in parentIds) {
+ var parentModule = _moduleLibraries(parentId);
+ success = parentModule.onChildUpdate(moduleId, newVersion, data);
+ if (success == true) continue;
+ if (success == false) {
+ print("Module '$moduleId' is marked as unreloadable. "
+ 'Firing full page reload.');
+ _reloadPage();
+ _running.complete();
+ return;
+ }
+ _dirtyModules.add(parentId);
+ }
+ }
+ print('$reloadedModules modules were hot-reloaded.');
+ } on HotReloadFailedException catch (e) {
+ print('Error during script reloading. Firing full page reload. $e');
+ _reloadPage();
+ }
+ _running.complete();
+ }
+}
diff --git a/build_runner/lib/src/server/graph_viz_main.dart b/build_runner/lib/src/server/graph_viz_main.dart
new file mode 100644
index 0000000..be16751
--- /dev/null
+++ b/build_runner/lib/src/server/graph_viz_main.dart
@@ -0,0 +1,74 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:html';
+import 'dart:js' as js;
+
+final _graphReference = js.context[r'$build'];
+final _details = document.getElementById('details');
+
+main() async {
+ var filterBox = document.getElementById('filter') as InputElement;
+ var searchBox = document.getElementById('searchbox') as InputElement;
+ var searchForm = document.getElementById('searchform');
+ searchForm.onSubmit.listen((e) {
+ e.preventDefault();
+ _focus(searchBox.value.trim(),
+ filter: filterBox.value.isNotEmpty ? filterBox.value : null);
+ return null;
+ });
+ _graphReference.callMethod('initializeGraph', [_focus]);
+}
+
+void _error(String message, [Object error, StackTrace stack]) {
+ var msg = [message, error, stack].where((e) => e != null).join('\n');
+ _details.innerHtml = '<pre>$msg</pre>';
+}
+
+Future _focus(String query, {String filter}) async {
+ if (query.isEmpty) {
+ _error('Provide content in the query.');
+ return;
+ }
+
+ Map nodeInfo;
+ var queryParams = {'q': query};
+ if (filter != null) queryParams['f'] = filter;
+ var uri = Uri(queryParameters: queryParams);
+ try {
+ nodeInfo = json.decode(await HttpRequest.getString(uri.toString()))
+ as Map<String, dynamic>;
+ } catch (e, stack) {
+ var msg = 'Error requesting query "$query".';
+ if (e is ProgressEvent) {
+ var target = e.target;
+ if (target is HttpRequest) {
+ msg = [
+ msg,
+ '${target.status} ${target.statusText}',
+ target.responseText
+ ].join('\n');
+ }
+ _error(msg);
+ } else {
+ _error(msg, e, stack);
+ }
+ return;
+ }
+
+ var graphData = {'edges': nodeInfo['edges'], 'nodes': nodeInfo['nodes']};
+ _graphReference.callMethod('setData', [js.JsObject.jsify(graphData)]);
+ var primaryNode = nodeInfo['primary'];
+ _details.innerHtml = '<strong>ID:</strong> ${primaryNode['id']} <br />'
+ '<strong>Type:</strong> ${primaryNode['type']}<br />'
+ '<strong>Hidden:</strong> ${primaryNode['hidden']} <br />'
+ '<strong>State:</strong> ${primaryNode['state']} <br />'
+ '<strong>Was Output:</strong> ${primaryNode['wasOutput']} <br />'
+ '<strong>Failed:</strong> ${primaryNode['isFailure']} <br />'
+ '<strong>Phase:</strong> ${primaryNode['phaseNumber']} <br />'
+ '<strong>Glob:</strong> ${primaryNode['glob']}<br />'
+ '<strong>Last Digest:</strong> ${primaryNode['lastKnownDigest']}<br />';
+}
diff --git a/build_runner/lib/src/server/graph_viz_main.dart.js.map b/build_runner/lib/src/server/graph_viz_main.dart.js.map
new file mode 100644
index 0000000..3e09cad
--- /dev/null
+++ b/build_runner/lib/src/server/graph_viz_main.dart.js.map
@@ -0,0 +1,16 @@
+{
+ "version": 3,
+ "engine": "v2",
+ "file": "graph_viz_main.dart.js",
+ "sourceRoot": "",
+ "sources": ["org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/interceptors.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_array.dart","org-dartlang-sdk:///sdk/lib/internal/iterable.dart","org-dartlang-sdk:///sdk/lib/collection/list.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_number.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_string.dart","org-dartlang-sdk:///sdk/lib/core/errors.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/internal_patch.dart","org-dartlang-sdk:///sdk/lib/internal/symbol.dart","org-dartlang-sdk:///sdk/lib/js/_js_client.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_rti.dart","org-dartlang-sdk:///sdk/lib/core/exceptions.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/core_patch.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/native_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/constant_map.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/linked_hash_map.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/regexp_helper.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/js_names.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/native_typed_data.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/async_patch.dart","org-dartlang-sdk:///sdk/lib/async/future_impl.dart","org-dartlang-sdk:///sdk/lib/async/schedule_microtask.dart","org-dartlang-sdk:///sdk/lib/async/zone.dart","org-dartlang-sdk:///sdk/lib/async/stream.dart","org-dartlang-sdk:///sdk/lib/async/stream_impl.dart","org-dartlang-sdk:///sdk/lib/html/dart2js/html_dart2js.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/collection_patch.dart","org-dartlang-sdk:///sdk/lib/collection/iterable.dart","org-dartlang-sdk:///sdk/lib/collection/linked_hash_set.dart","org-dartlang-sdk:///sdk/lib/collection/maps.dart","org-dartlang-sdk:///sdk/lib/collection/set.dart","org-dartlang-sdk:///sdk/lib/_internal/js_runtime/lib/convert_patch.dart","org-dartlang-sdk:///sdk/lib/convert/json.dart","org-dartlang-sdk:///sdk/lib/convert/utf.dart","org-dartlang-sdk:///sdk/lib/core/date_time.dart","org-dartlang-sdk:///sdk/lib/core/iterable.dart","org-dartlang-sdk:///sdk/lib/core/null.dart","org-dartlang-sdk:///sdk/lib/core/uri.dart","org-dartlang-sdk:///sdk/lib/convert/codec.dart","org-dartlang-sdk:///sdk/lib/js/dart2js/js_dart2js.dart","org-dartlang-sdk:///sdk/lib/svg/dart2js/svg_dart2js.dart","graph_viz_main.dart","org-dartlang-sdk:///sdk/lib/async/future.dart"],
+ "names": 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+ "minified_names": {
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+ }
+}
diff --git a/build_runner/lib/src/server/path_to_asset_id.dart b/build_runner/lib/src/server/path_to_asset_id.dart
new file mode 100644
index 0000000..3169b0f
--- /dev/null
+++ b/build_runner/lib/src/server/path_to_asset_id.dart
@@ -0,0 +1,24 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:path/path.dart' as p;
+
+AssetId pathToAssetId(
+ String rootPackage, String rootDir, List<String> pathSegments) {
+ var packagesIndex = pathSegments.indexOf('packages');
+ rootDir ??= '';
+ return packagesIndex >= 0
+ ? AssetId(pathSegments[packagesIndex + 1],
+ p.join('lib', p.joinAll(pathSegments.sublist(packagesIndex + 2))))
+ : AssetId(rootPackage, p.joinAll([rootDir].followedBy(pathSegments)));
+}
+
+/// Returns null for paths that neither a lib nor starts from a rootDir
+String assetIdToPath(AssetId assetId, String rootDir) =>
+ assetId.path.startsWith('lib/')
+ ? assetId.path.replaceFirst('lib/', 'packages/${assetId.package}/')
+ : assetId.path.startsWith('$rootDir/')
+ ? assetId.path.substring(rootDir.length + 1)
+ : null;
diff --git a/build_runner/lib/src/server/server.dart b/build_runner/lib/src/server/server.dart
new file mode 100644
index 0000000..bdf0150
--- /dev/null
+++ b/build_runner/lib/src/server/server.dart
@@ -0,0 +1,667 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:build/build.dart';
+import 'package:build_runner/src/entrypoint/options.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/generate/performance_tracker.dart';
+import 'package:crypto/crypto.dart';
+import 'package:glob/glob.dart';
+import 'package:logging/logging.dart';
+import 'package:mime/mime.dart';
+import 'package:path/path.dart' as p;
+import 'package:shelf/shelf.dart' as shelf;
+import 'package:shelf_web_socket/shelf_web_socket.dart';
+import 'package:timing/timing.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
+
+import '../generate/watch_impl.dart';
+import 'asset_graph_handler.dart';
+import 'path_to_asset_id.dart';
+
+const _performancePath = r'$perf';
+final _graphPath = r'$graph';
+final _assetsDigestPath = r'$assetDigests';
+final _buildUpdatesProtocol = r'$buildUpdates';
+final entrypointExtensionMarker = '/* ENTRYPOINT_EXTENTION_MARKER */';
+
+final _logger = Logger('Serve');
+
+enum PerfSortOrder {
+ startTimeAsc,
+ startTimeDesc,
+ stopTimeAsc,
+ stopTimeDesc,
+ durationAsc,
+ durationDesc,
+ innerDurationAsc,
+ innerDurationDesc
+}
+
+ServeHandler createServeHandler(WatchImpl watch) {
+ var rootPackage = watch.packageGraph.root.name;
+ var assetGraphHanderCompleter = Completer<AssetGraphHandler>();
+ var assetHandlerCompleter = Completer<AssetHandler>();
+ watch.ready.then((_) async {
+ assetHandlerCompleter.complete(AssetHandler(watch.reader, rootPackage));
+ assetGraphHanderCompleter.complete(
+ AssetGraphHandler(watch.reader, rootPackage, watch.assetGraph));
+ });
+ return ServeHandler._(watch, assetHandlerCompleter.future,
+ assetGraphHanderCompleter.future, rootPackage);
+}
+
+class ServeHandler implements BuildState {
+ final WatchImpl _state;
+ BuildResult _lastBuildResult;
+ final String _rootPackage;
+
+ final Future<AssetHandler> _assetHandler;
+ final Future<AssetGraphHandler> _assetGraphHandler;
+
+ final BuildUpdatesWebSocketHandler _webSocketHandler;
+
+ ServeHandler._(this._state, this._assetHandler, this._assetGraphHandler,
+ this._rootPackage)
+ : _webSocketHandler = BuildUpdatesWebSocketHandler(_state) {
+ _state.buildResults.listen((result) {
+ _lastBuildResult = result;
+ _webSocketHandler.emitUpdateMessage(result);
+ }).onDone(_webSocketHandler.close);
+ }
+
+ @override
+ Future<BuildResult> get currentBuild => _state.currentBuild;
+
+ @override
+ Stream<BuildResult> get buildResults => _state.buildResults;
+
+ shelf.Handler handlerFor(String rootDir,
+ {bool logRequests, BuildUpdatesOption buildUpdates}) {
+ buildUpdates ??= BuildUpdatesOption.none;
+ logRequests ??= false;
+ if (p.url.split(rootDir).length != 1) {
+ throw ArgumentError.value(
+ rootDir, 'rootDir', 'Only top level directories are supported');
+ }
+ _state.currentBuild.then((_) {
+ // If the first build fails with a handled exception, we might not have
+ // an asset graph and can't do this check.
+ if (_state.assetGraph == null) return;
+ _warnForEmptyDirectory(rootDir);
+ });
+ var cascade = shelf.Cascade();
+ if (buildUpdates != BuildUpdatesOption.none) {
+ cascade = cascade.add(_webSocketHandler.createHandlerByRootDir(rootDir));
+ }
+ cascade =
+ cascade.add(_blockOnCurrentBuild).add((shelf.Request request) async {
+ if (request.url.path == _performancePath) {
+ return _performanceHandler(request);
+ }
+ if (request.url.path == _assetsDigestPath) {
+ return _assetsDigestHandler(request, rootDir);
+ }
+ if (request.url.path.startsWith(_graphPath)) {
+ var graphHandler = await _assetGraphHandler;
+ return await graphHandler.handle(
+ request.change(path: _graphPath), rootDir);
+ }
+ var assetHandler = await _assetHandler;
+ return assetHandler.handle(request, rootDir: rootDir);
+ });
+ var pipeline = shelf.Pipeline();
+ if (logRequests) {
+ pipeline = pipeline.addMiddleware(_logRequests);
+ }
+ switch (buildUpdates) {
+ case BuildUpdatesOption.liveReload:
+ pipeline = pipeline.addMiddleware(_injectLiveReloadClientCode);
+ break;
+ case BuildUpdatesOption.hotReload:
+ pipeline = pipeline.addMiddleware(_injectHotReloadClientCode);
+ break;
+ case BuildUpdatesOption.none:
+ break;
+ }
+ return pipeline.addHandler(cascade.handler);
+ }
+
+ Future<shelf.Response> _blockOnCurrentBuild(_) async {
+ await currentBuild;
+ return shelf.Response.notFound('');
+ }
+
+ shelf.Response _performanceHandler(shelf.Request request) {
+ var hideSkipped = false;
+ var detailedSlices = false;
+ var slicesResolution = 5;
+ var sortOrder = PerfSortOrder.startTimeAsc;
+ var filter = request.url.queryParameters['filter'] ?? '';
+ if (request.url.queryParameters['hideSkipped']?.toLowerCase() == 'true') {
+ hideSkipped = true;
+ }
+ if (request.url.queryParameters['detailedSlices']?.toLowerCase() ==
+ 'true') {
+ detailedSlices = true;
+ }
+ if (request.url.queryParameters.containsKey('slicesResolution')) {
+ slicesResolution =
+ int.parse(request.url.queryParameters['slicesResolution']);
+ }
+ if (request.url.queryParameters.containsKey('sortOrder')) {
+ sortOrder = PerfSortOrder
+ .values[int.parse(request.url.queryParameters['sortOrder'])];
+ }
+ return shelf.Response.ok(
+ _renderPerformance(_lastBuildResult.performance, hideSkipped,
+ detailedSlices, slicesResolution, sortOrder, filter),
+ headers: {HttpHeaders.contentTypeHeader: 'text/html'});
+ }
+
+ Future<shelf.Response> _assetsDigestHandler(
+ shelf.Request request, String rootDir) async {
+ var assertPathList =
+ (jsonDecode(await request.readAsString()) as List).cast<String>();
+ var rootPackage = _state.packageGraph.root.name;
+ var results = <String, String>{};
+ for (final path in assertPathList) {
+ try {
+ var assetId = pathToAssetId(rootPackage, rootDir, p.url.split(path));
+ var digest = await _state.reader.digest(assetId);
+ results[path] = digest.toString();
+ } on AssetNotFoundException {
+ results.remove(path);
+ }
+ }
+ return shelf.Response.ok(jsonEncode(results),
+ headers: {HttpHeaders.contentTypeHeader: 'application/json'});
+ }
+
+ void _warnForEmptyDirectory(String rootDir) {
+ if (!_state.assetGraph
+ .packageNodes(_rootPackage)
+ .any((n) => n.id.path.startsWith('$rootDir/'))) {
+ _logger.warning('Requested a server for `$rootDir` but this directory '
+ 'has no assets in the build. You may need to add some sources or '
+ 'include this directory in some target in your `build.yaml`');
+ }
+ }
+}
+
+/// Class that manages web socket connection handler to inform clients about
+/// build updates
+class BuildUpdatesWebSocketHandler {
+ final connectionsByRootDir = <String, List<WebSocketChannel>>{};
+ final shelf.Handler Function(Function, {Iterable<String> protocols})
+ _handlerFactory;
+ final _internalHandlers = <String, shelf.Handler>{};
+ final WatchImpl _state;
+
+ BuildUpdatesWebSocketHandler(this._state,
+ [this._handlerFactory = webSocketHandler]);
+
+ shelf.Handler createHandlerByRootDir(String rootDir) {
+ if (!_internalHandlers.containsKey(rootDir)) {
+ var closureForRootDir = (WebSocketChannel webSocket, String protocol) =>
+ _handleConnection(webSocket, protocol, rootDir);
+ _internalHandlers[rootDir] = _handlerFactory(closureForRootDir,
+ protocols: [_buildUpdatesProtocol]);
+ }
+ return _internalHandlers[rootDir];
+ }
+
+ Future emitUpdateMessage(BuildResult buildResult) async {
+ if (buildResult.status != BuildStatus.success) return;
+ var digests = <AssetId, String>{};
+ for (var assetId in buildResult.outputs) {
+ var digest = await _state.reader.digest(assetId);
+ digests[assetId] = digest.toString();
+ }
+ for (var rootDir in connectionsByRootDir.keys) {
+ var resultMap = <String, String>{};
+ for (var assetId in digests.keys) {
+ var path = assetIdToPath(assetId, rootDir);
+ if (path != null) {
+ resultMap[path] = digests[assetId];
+ }
+ }
+ for (var connection in connectionsByRootDir[rootDir]) {
+ connection.sink.add(jsonEncode(resultMap));
+ }
+ }
+ }
+
+ void _handleConnection(
+ WebSocketChannel webSocket, String protocol, String rootDir) async {
+ if (!connectionsByRootDir.containsKey(rootDir)) {
+ connectionsByRootDir[rootDir] = [];
+ }
+ connectionsByRootDir[rootDir].add(webSocket);
+ await webSocket.stream.drain();
+ connectionsByRootDir[rootDir].remove(webSocket);
+ if (connectionsByRootDir[rootDir].isEmpty) {
+ connectionsByRootDir.remove(rootDir);
+ }
+ }
+
+ Future<void> close() {
+ return Future.wait(connectionsByRootDir.values
+ .expand((x) => x)
+ .map((connection) => connection.sink.close()));
+ }
+}
+
+shelf.Handler Function(shelf.Handler) _injectBuildUpdatesClientCode(
+ String scriptName) =>
+ (innerHandler) {
+ return (shelf.Request request) async {
+ if (!request.url.path.endsWith('.js')) {
+ return innerHandler(request);
+ }
+ var response = await innerHandler(request);
+ // TODO: Find a way how to check and/or modify body without reading it
+ // whole.
+ var body = await response.readAsString();
+ if (body.startsWith(entrypointExtensionMarker)) {
+ body += _buildUpdatesInjectedJS(scriptName);
+ var originalEtag = response.headers[HttpHeaders.etagHeader];
+ if (originalEtag != null) {
+ var newEtag = base64.encode(md5.convert(body.codeUnits).bytes);
+ var newHeaders = Map.of(response.headers);
+ newHeaders[HttpHeaders.etagHeader] = newEtag;
+
+ if (request.headers[HttpHeaders.ifNoneMatchHeader] == newEtag) {
+ return shelf.Response.notModified(headers: newHeaders);
+ }
+
+ response = response.change(headers: newHeaders);
+ }
+ }
+ return response.change(body: body);
+ };
+ };
+
+final _injectHotReloadClientCode =
+ _injectBuildUpdatesClientCode('hot_reload_client.dart');
+
+final _injectLiveReloadClientCode =
+ _injectBuildUpdatesClientCode('live_reload_client');
+
+/// Hot-/live- reload config
+///
+/// Listen WebSocket for updates in build results
+String _buildUpdatesInjectedJS(String scriptName) => '''\n
+// Injected by build_runner for build updates support
+window.\$dartLoader.forceLoadModule('packages/build_runner/src/server/build_updates_client/$scriptName');
+''';
+
+class AssetHandler {
+ final FinalizedReader _reader;
+ final String _rootPackage;
+
+ final _typeResolver = MimeTypeResolver();
+
+ AssetHandler(this._reader, this._rootPackage);
+
+ Future<shelf.Response> handle(shelf.Request request, {String rootDir}) =>
+ (request.url.path.endsWith('/') || request.url.path.isEmpty)
+ ? _handle(
+ request.headers,
+ pathToAssetId(
+ _rootPackage,
+ rootDir,
+ request.url.pathSegments
+ .followedBy(const ['index.html']).toList()),
+ fallbackToDirectoryList: true)
+ : _handle(request.headers,
+ pathToAssetId(_rootPackage, rootDir, request.url.pathSegments));
+
+ Future<shelf.Response> _handle(
+ Map<String, String> requestHeaders, AssetId assetId,
+ {bool fallbackToDirectoryList = false}) async {
+ try {
+ if (!await _reader.canRead(assetId)) {
+ var reason = await _reader.unreadableReason(assetId);
+ switch (reason) {
+ case UnreadableReason.failed:
+ return shelf.Response.internalServerError(
+ body: 'Build failed for $assetId');
+ case UnreadableReason.notOutput:
+ return shelf.Response.notFound('$assetId was not output');
+ case UnreadableReason.notFound:
+ if (fallbackToDirectoryList) {
+ return shelf.Response.notFound(await _findDirectoryList(assetId));
+ }
+ return shelf.Response.notFound('Not Found');
+ default:
+ return shelf.Response.notFound('Not Found');
+ }
+ }
+ } on ArgumentError catch (_) {
+ return shelf.Response.notFound('Not Found');
+ }
+
+ var etag = base64.encode((await _reader.digest(assetId)).bytes);
+ var headers = {
+ HttpHeaders.contentTypeHeader: _typeResolver.lookup(assetId.path),
+ HttpHeaders.etagHeader: etag,
+ // We always want this revalidated, which requires specifying both
+ // max-age=0 and must-revalidate.
+ //
+ // See spec https://goo.gl/Lhvttg for more info about this header.
+ HttpHeaders.cacheControlHeader: 'max-age=0, must-revalidate',
+ };
+
+ if (requestHeaders[HttpHeaders.ifNoneMatchHeader] == etag) {
+ // This behavior is still useful for cases where a file is hit
+ // without a cache-busting query string.
+ return shelf.Response.notModified(headers: headers);
+ }
+
+ var bytes = await _reader.readAsBytes(assetId);
+ headers[HttpHeaders.contentLengthHeader] = '${bytes.length}';
+ return shelf.Response.ok(bytes, headers: headers);
+ }
+
+ Future<String> _findDirectoryList(AssetId from) async {
+ var directoryPath = p.url.dirname(from.path);
+ var glob = p.url.join(directoryPath, '*');
+ var result =
+ await _reader.findAssets(Glob(glob)).map((a) => a.path).toList();
+ return (result.isEmpty)
+ ? 'Could not find ${from.path} or any files in $directoryPath.'
+ : 'Could not find ${from.path}. $directoryPath contains:\n'
+ '${result.join('\n')}';
+ }
+}
+
+String _renderPerformance(
+ BuildPerformance performance,
+ bool hideSkipped,
+ bool detailedSlices,
+ int slicesResolution,
+ PerfSortOrder sortOrder,
+ String filter) {
+ try {
+ var rows = StringBuffer();
+ final resolution = Duration(milliseconds: slicesResolution);
+ var count = 0,
+ maxSlices = 1,
+ max = 0,
+ min = performance.stopTime.millisecondsSinceEpoch -
+ performance.startTime.millisecondsSinceEpoch;
+
+ void writeRow(BuilderActionPerformance action,
+ BuilderActionStagePerformance stage, TimeSlice slice) {
+ var actionKey = '${action.builderKey}:${action.primaryInput}';
+ var tooltip = '<div class=perf-tooltip>'
+ '<p><b>Builder:</b> ${action.builderKey}</p>'
+ '<p><b>Input:</b> ${action.primaryInput}</p>'
+ '<p><b>Stage:</b> ${stage.label}</p>'
+ '<p><b>Stage time:</b> '
+ '${stage.startTime.difference(performance.startTime).inMilliseconds / 1000}s - '
+ '${stage.stopTime.difference(performance.startTime).inMilliseconds / 1000}s</p>'
+ '<p><b>Stage real duration:</b> ${stage.duration.inMilliseconds / 1000} seconds</p>'
+ '<p><b>Stage user duration:</b> ${stage.innerDuration.inMilliseconds / 1000} seconds</p>';
+ if (slice != stage) {
+ tooltip += '<p><b>Slice time:</b> '
+ '${slice.startTime.difference(performance.startTime).inMilliseconds / 1000}s - '
+ '${slice.stopTime.difference(performance.startTime).inMilliseconds / 1000}s</p>'
+ '<p><b>Slice duration:</b> ${slice.duration.inMilliseconds / 1000} seconds</p>';
+ }
+ tooltip += '</div>';
+ var start = slice.startTime.millisecondsSinceEpoch -
+ performance.startTime.millisecondsSinceEpoch;
+ var end = slice.stopTime.millisecondsSinceEpoch -
+ performance.startTime.millisecondsSinceEpoch;
+
+ if (min > start) min = start;
+ if (max < end) max = end;
+
+ rows.writeln(
+ ' ["$actionKey", "${stage.label}", "$tooltip", $start, $end],');
+ ++count;
+ }
+
+ final filterRegex = filter.isNotEmpty ? RegExp(filter) : null;
+
+ final actions = performance.actions
+ .where((action) =>
+ !hideSkipped ||
+ action.stages.any((stage) => stage.label == 'Build'))
+ .where((action) =>
+ filterRegex == null ||
+ filterRegex.hasMatch('${action.builderKey}:${action.primaryInput}'))
+ .toList();
+
+ int Function(BuilderActionPerformance, BuilderActionPerformance) comparator;
+ switch (sortOrder) {
+ case PerfSortOrder.startTimeAsc:
+ comparator = (a1, a2) => a1.startTime.compareTo(a2.startTime);
+ break;
+ case PerfSortOrder.startTimeDesc:
+ comparator = (a1, a2) => a2.startTime.compareTo(a1.startTime);
+ break;
+ case PerfSortOrder.stopTimeAsc:
+ comparator = (a1, a2) => a1.stopTime.compareTo(a2.stopTime);
+ break;
+ case PerfSortOrder.stopTimeDesc:
+ comparator = (a1, a2) => a2.stopTime.compareTo(a1.stopTime);
+ break;
+ case PerfSortOrder.durationAsc:
+ comparator = (a1, a2) => a1.duration.compareTo(a2.duration);
+ break;
+ case PerfSortOrder.durationDesc:
+ comparator = (a1, a2) => a2.duration.compareTo(a1.duration);
+ break;
+ case PerfSortOrder.innerDurationAsc:
+ comparator = (a1, a2) => a1.innerDuration.compareTo(a2.innerDuration);
+ break;
+ case PerfSortOrder.innerDurationDesc:
+ comparator = (a1, a2) => a2.innerDuration.compareTo(a1.innerDuration);
+ break;
+ }
+ actions.sort(comparator);
+
+ for (var action in actions) {
+ if (hideSkipped &&
+ !action.stages.any((stage) => stage.label == 'Build')) {
+ continue;
+ }
+ for (var stage in action.stages) {
+ if (!detailedSlices) {
+ writeRow(action, stage, stage);
+ continue;
+ }
+ var slices = stage.slices.fold<List<TimeSlice>>([], (list, slice) {
+ if (list.isNotEmpty &&
+ slice.startTime.difference(list.last.stopTime) < resolution) {
+ // concat with previous if gap less than resolution
+ list.last = TimeSlice(list.last.startTime, slice.stopTime);
+ } else {
+ if (list.length > 1 && list.last.duration < resolution) {
+ // remove previous if its duration less than resolution
+ list.last = slice;
+ } else {
+ list.add(slice);
+ }
+ }
+ return list;
+ });
+ if (slices.isNotEmpty) {
+ for (var slice in slices) {
+ writeRow(action, stage, slice);
+ }
+ } else {
+ writeRow(action, stage, stage);
+ }
+ if (maxSlices < slices.length) maxSlices = slices.length;
+ }
+ }
+ if (max - min < 1000) {
+ rows.writeln(' ['
+ '"https://github.com/google/google-visualization-issues/issues/2269"'
+ ', "", "", $min, ${min + 1000}]');
+ }
+ return '''
+ <html>
+ <head>
+ <script src="https://www.gstatic.com/charts/loader.js"></script>
+ <script>
+ google.charts.load('current', {'packages':['timeline']});
+ google.charts.setOnLoadCallback(drawChart);
+ function drawChart() {
+ var container = document.getElementById('timeline');
+ var chart = new google.visualization.Timeline(container);
+ var dataTable = new google.visualization.DataTable();
+
+ dataTable.addColumn({ type: 'string', id: 'ActionKey' });
+ dataTable.addColumn({ type: 'string', id: 'Stage' });
+ dataTable.addColumn({ type: 'string', role: 'tooltip', p: { html: true } });
+ dataTable.addColumn({ type: 'number', id: 'Start' });
+ dataTable.addColumn({ type: 'number', id: 'End' });
+ dataTable.addRows([
+ $rows
+ ]);
+
+ console.log('rendering', $count, 'blocks, max', $maxSlices,
+ 'slices in stage, resolution', $slicesResolution, 'ms');
+ var options = {
+ tooltip: { isHtml: true }
+ };
+ var statusText = document.getElementById('status');
+ var timeoutId;
+ var updateFunc = function () {
+ if (timeoutId) {
+ // don't schedule more than one at a time
+ return;
+ }
+ statusText.innerText = 'Drawing table...';
+ console.time('draw-time');
+
+ timeoutId = setTimeout(function () {
+ chart.draw(dataTable, options);
+ console.timeEnd('draw-time');
+ statusText.innerText = '';
+ timeoutId = null;
+ });
+ };
+
+ updateFunc();
+
+ window.addEventListener('resize', updateFunc);
+ }
+ </script>
+ <style>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+
+ body {
+ display: flex;
+ flex-direction: column;
+ }
+
+ #timeline {
+ display: flex;
+ flex-direction: row;
+ flex: 1;
+ }
+ .controls-header p {
+ display: inline-block;
+ margin: 0.5em;
+ }
+ .perf-tooltip {
+ margin: 0.5em;
+ }
+ </style>
+ </head>
+ <body>
+ <form class="controls-header" action="/$_performancePath" onchange="this.submit()">
+ <p><label><input type="checkbox" name="hideSkipped" value="true" ${hideSkipped ? 'checked' : ''}> Hide Skipped Actions</label></p>
+ <p><label><input type="checkbox" name="detailedSlices" value="true" ${detailedSlices ? 'checked' : ''}> Show Async Slices</label></p>
+ <p>Sort by: <select name="sortOrder">
+ <option value="0" ${sortOrder.index == 0 ? 'selected' : ''}>Start Time Asc</option>
+ <option value="1" ${sortOrder.index == 1 ? 'selected' : ''}>Start Time Desc</option>
+ <option value="2" ${sortOrder.index == 2 ? 'selected' : ''}>Stop Time Asc</option>
+ <option value="3" ${sortOrder.index == 3 ? 'selected' : ''}>Stop Time Desc</option>
+ <option value="5" ${sortOrder.index == 4 ? 'selected' : ''}>Real Duration Asc</option>
+ <option value="5" ${sortOrder.index == 5 ? 'selected' : ''}>Real Duration Desc</option>
+ <option value="6" ${sortOrder.index == 6 ? 'selected' : ''}>User Duration Asc</option>
+ <option value="7" ${sortOrder.index == 7 ? 'selected' : ''}>User Duration Desc</option>
+ </select></p>
+ <p>Slices Resolution: <select name="slicesResolution">
+ <option value="0" ${slicesResolution == 0 ? 'selected' : ''}>0</option>
+ <option value="1" ${slicesResolution == 1 ? 'selected' : ''}>1</option>
+ <option value="3" ${slicesResolution == 3 ? 'selected' : ''}>3</option>
+ <option value="5" ${slicesResolution == 5 ? 'selected' : ''}>5</option>
+ <option value="10" ${slicesResolution == 10 ? 'selected' : ''}>10</option>
+ <option value="15" ${slicesResolution == 15 ? 'selected' : ''}>15</option>
+ <option value="20" ${slicesResolution == 20 ? 'selected' : ''}>20</option>
+ <option value="25" ${slicesResolution == 25 ? 'selected' : ''}>25</option>
+ </select></p>
+ <p>Filter (RegExp): <input type="text" name="filter" value="$filter"></p>
+ <p id="status"></p>
+ </form>
+ <div id="timeline"></div>
+ </body>
+ </html>
+ ''';
+ } on UnimplementedError catch (_) {
+ return _enablePerformanceTracking;
+ } on UnsupportedError catch (_) {
+ return _enablePerformanceTracking;
+ }
+}
+
+final _enablePerformanceTracking = '''
+<html>
+ <body>
+ <p>
+ Performance information not available, you must pass the
+ `--track-performance` command line arg to enable performance tracking.
+ </p>
+ <body>
+</html>
+''';
+
+/// [shelf.Middleware] that logs all requests, inspired by [shelf.logRequests].
+shelf.Handler _logRequests(shelf.Handler innerHandler) {
+ return (shelf.Request request) {
+ var startTime = DateTime.now();
+ var watch = Stopwatch()..start();
+
+ return Future.sync(() => innerHandler(request)).then((response) {
+ var logFn = response.statusCode >= 500 ? _logger.warning : _logger.info;
+ var msg = _getMessage(startTime, response.statusCode,
+ request.requestedUri, request.method, watch.elapsed);
+ logFn(msg);
+ return response;
+ }, onError: (error, stackTrace) {
+ if (error is shelf.HijackException) throw error;
+ var msg = _getMessage(
+ startTime, 500, request.requestedUri, request.method, watch.elapsed);
+ _logger.severe('$msg\r\n$error\r\n$stackTrace', true);
+ throw error;
+ });
+ };
+}
+
+String _getMessage(DateTime requestTime, int statusCode, Uri requestedUri,
+ String method, Duration elapsedTime) {
+ return '${requestTime.toIso8601String()} '
+ '${humanReadable(elapsedTime)} '
+ '$method [$statusCode] '
+ '${requestedUri.path}${_formatQuery(requestedUri.query)}\r\n';
+}
+
+String _formatQuery(String query) {
+ return query == '' ? '' : '?$query';
+}
diff --git a/build_runner/lib/src/watcher/asset_change.dart b/build_runner/lib/src/watcher/asset_change.dart
new file mode 100644
index 0000000..7796ede
--- /dev/null
+++ b/build_runner/lib/src/watcher/asset_change.dart
@@ -0,0 +1,51 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:path/path.dart' as p;
+import 'package:watcher/watcher.dart';
+
+import 'package:build_runner_core/build_runner_core.dart';
+
+/// Represents an [id] that was modified on disk as a result of [type].
+class AssetChange {
+ /// Asset that was changed.
+ final AssetId id;
+
+ /// What caused the asset to be detected as changed.
+ final ChangeType type;
+
+ const AssetChange(this.id, this.type);
+
+ /// Creates a new change record in [package] from an existing watcher [event].
+ factory AssetChange.fromEvent(PackageNode package, WatchEvent event) {
+ return AssetChange(
+ AssetId(
+ package.name,
+ _normalizeRelativePath(package, event),
+ ),
+ event.type,
+ );
+ }
+
+ static String _normalizeRelativePath(PackageNode package, WatchEvent event) {
+ final pkgPath = package.path;
+ var absoluteEventPath =
+ p.isAbsolute(event.path) ? event.path : p.absolute(event.path);
+ if (!p.isWithin(pkgPath, absoluteEventPath)) {
+ throw ArgumentError('"$absoluteEventPath" is not in "$pkgPath".');
+ }
+ return p.relative(absoluteEventPath, from: pkgPath);
+ }
+
+ @override
+ int get hashCode => id.hashCode ^ type.hashCode;
+
+ @override
+ bool operator ==(Object other) =>
+ other is AssetChange && other.id == id && other.type == type;
+
+ @override
+ String toString() => 'AssetChange {asset: $id, type: $type}';
+}
diff --git a/build_runner/lib/src/watcher/change_filter.dart b/build_runner/lib/src/watcher/change_filter.dart
new file mode 100644
index 0000000..3da8192
--- /dev/null
+++ b/build_runner/lib/src/watcher/change_filter.dart
@@ -0,0 +1,39 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:build_runner/src/watcher/asset_change.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_runner_core/src/asset_graph/graph.dart';
+import 'package:build_runner_core/src/asset_graph/node.dart';
+import 'package:watcher/watcher.dart';
+
+/// Returns if a given asset change should be considered for building.
+bool shouldProcess(
+ AssetChange change,
+ AssetGraph assetGraph,
+ BuildOptions buildOptions,
+ bool willCreateOutputDir,
+ Set<AssetId> expectedDeletes,
+) {
+ if (_isCacheFile(change) && !assetGraph.contains(change.id)) return false;
+ var node = assetGraph.get(change.id);
+ if (node != null) {
+ if (!willCreateOutputDir && !node.isInteresting) return false;
+ if (_isAddOrEditOnGeneratedFile(node, change.type)) return false;
+ } else {
+ if (change.type != ChangeType.ADD) return false;
+ if (!buildOptions.targetGraph.anyMatchesAsset(change.id)) return false;
+ }
+ if (_isExpectedDelete(change, expectedDeletes)) return false;
+ return true;
+}
+
+bool _isAddOrEditOnGeneratedFile(AssetNode node, ChangeType changeType) =>
+ node.isGenerated && changeType != ChangeType.REMOVE;
+
+bool _isCacheFile(AssetChange change) => change.id.path.startsWith(cacheDir);
+
+bool _isExpectedDelete(AssetChange change, Set<AssetId> expectedDeletes) =>
+ expectedDeletes.remove(change.id);
diff --git a/build_runner/lib/src/watcher/collect_changes.dart b/build_runner/lib/src/watcher/collect_changes.dart
new file mode 100644
index 0000000..eb6b8d8
--- /dev/null
+++ b/build_runner/lib/src/watcher/collect_changes.dart
@@ -0,0 +1,53 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:build_runner/src/watcher/asset_change.dart';
+import 'package:watcher/watcher.dart';
+
+/// Merges [AssetChange] events.
+///
+/// For example, if an asset was added then immediately deleted, no event will
+/// be recorded for the given asset.
+Map<AssetId, ChangeType> collectChanges(List<List<AssetChange>> changes) {
+ var changeMap = <AssetId, ChangeType>{};
+ for (var change in changes.expand((l) => l)) {
+ var originalChangeType = changeMap[change.id];
+ if (originalChangeType != null) {
+ switch (originalChangeType) {
+ case ChangeType.ADD:
+ if (change.type == ChangeType.REMOVE) {
+ // ADD followed by REMOVE, just remove the change.
+ changeMap.remove(change.id);
+ }
+ break;
+ case ChangeType.REMOVE:
+ if (change.type == ChangeType.ADD) {
+ // REMOVE followed by ADD, convert to a MODIFY
+ changeMap[change.id] = ChangeType.MODIFY;
+ } else if (change.type == ChangeType.MODIFY) {
+ // REMOVE followed by MODIFY isn't sensible, just throw.
+ throw StateError(
+ 'Internal error, got REMOVE event followed by MODIFY event for '
+ '${change.id}.');
+ }
+ break;
+ case ChangeType.MODIFY:
+ if (change.type == ChangeType.REMOVE) {
+ // MODIFY followed by REMOVE, convert to REMOVE
+ changeMap[change.id] = change.type;
+ } else if (change.type == ChangeType.ADD) {
+ // MODIFY followed by ADD isn't sensible, just throw.
+ throw StateError(
+ 'Internal error, got MODIFY event followed by ADD event for '
+ '${change.id}.');
+ }
+ break;
+ }
+ } else {
+ changeMap[change.id] = change.type;
+ }
+ }
+ return changeMap;
+}
diff --git a/build_runner/lib/src/watcher/delete_writer.dart b/build_runner/lib/src/watcher/delete_writer.dart
new file mode 100644
index 0000000..40b248e
--- /dev/null
+++ b/build_runner/lib/src/watcher/delete_writer.dart
@@ -0,0 +1,32 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+
+/// A [RunnerAssetWriter] that forwards delete events to [_onDelete];
+class OnDeleteWriter implements RunnerAssetWriter {
+ RunnerAssetWriter _writer;
+ Function(AssetId id) _onDelete;
+
+ OnDeleteWriter(this._writer, this._onDelete);
+
+ @override
+ Future delete(AssetId id) {
+ _onDelete(id);
+ return _writer.delete(id);
+ }
+
+ @override
+ Future writeAsBytes(AssetId id, List<int> bytes) =>
+ _writer.writeAsBytes(id, bytes);
+
+ @override
+ Future writeAsString(AssetId id, String contents,
+ {Encoding encoding = utf8}) =>
+ _writer.writeAsString(id, contents, encoding: encoding);
+}
diff --git a/build_runner/lib/src/watcher/graph_watcher.dart b/build_runner/lib/src/watcher/graph_watcher.dart
new file mode 100644
index 0000000..6a1d134
--- /dev/null
+++ b/build_runner/lib/src/watcher/graph_watcher.dart
@@ -0,0 +1,85 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:async/async.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:logging/logging.dart';
+
+import 'asset_change.dart';
+import 'node_watcher.dart';
+
+PackageNodeWatcher _default(PackageNode node) => PackageNodeWatcher(node);
+
+/// Allows watching an entire graph of packages to schedule rebuilds.
+class PackageGraphWatcher {
+ // TODO: Consider pulling logging out and providing hooks instead.
+ final Logger _logger;
+ final PackageNodeWatcher Function(PackageNode) _strategy;
+ final PackageGraph _graph;
+
+ final _readyCompleter = Completer<Null>();
+ Future<Null> get ready => _readyCompleter.future;
+
+ bool _isWatching = false;
+
+ /// Creates a new watcher for a [PackageGraph].
+ ///
+ /// May optionally specify a [watch] strategy, otherwise will attempt a
+ /// reasonable default based on the current platform.
+ PackageGraphWatcher(
+ this._graph, {
+ Logger logger,
+ PackageNodeWatcher watch(PackageNode node),
+ }) : _logger = logger ?? Logger('build_runner'),
+ _strategy = watch ?? _default;
+
+ /// Returns a stream of records for assets that changed in the package graph.
+ Stream<AssetChange> watch() {
+ assert(!_isWatching);
+ _isWatching = true;
+ return LazyStream(
+ () => logTimedSync(_logger, 'Setting up file watchers', _watch));
+ }
+
+ Stream<AssetChange> _watch() {
+ final allWatchers = _graph.allPackages.values
+ .where((node) => node.dependencyType == DependencyType.path)
+ .map(_strategy)
+ .toList();
+ final filteredEvents = allWatchers
+ .map((w) => w.watch().where(_nestedPathFilter(w.node)))
+ .toList();
+ // Asynchronously complete the `_readyCompleter` once all the watchers
+ // are done.
+ () async {
+ await Future.wait(
+ allWatchers.map((nodeWatcher) => nodeWatcher.watcher.ready));
+ _readyCompleter.complete();
+ }();
+ return StreamGroup.merge(filteredEvents);
+ }
+
+ bool Function(AssetChange) _nestedPathFilter(PackageNode rootNode) {
+ final ignorePaths = _nestedPaths(rootNode);
+ return (change) => !ignorePaths.any(change.id.path.startsWith);
+ }
+
+ // Returns a set of all package paths that are "nested" within a node.
+ //
+ // This allows the watcher to optimize and avoid duplicate events.
+ List<String> _nestedPaths(PackageNode rootNode) {
+ return _graph.allPackages.values
+ .where((node) {
+ return node.path.length > rootNode.path.length &&
+ node.path.startsWith(rootNode.path);
+ })
+ .map((node) =>
+ node.path.substring(rootNode.path.length + 1) +
+ Platform.pathSeparator)
+ .toList();
+ }
+}
diff --git a/build_runner/lib/src/watcher/node_watcher.dart b/build_runner/lib/src/watcher/node_watcher.dart
new file mode 100644
index 0000000..e52a076
--- /dev/null
+++ b/build_runner/lib/src/watcher/node_watcher.dart
@@ -0,0 +1,40 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:watcher/watcher.dart';
+
+import 'asset_change.dart';
+
+Watcher _default(String path) => Watcher(path);
+
+/// Allows watching significant files and directories in a given package.
+class PackageNodeWatcher {
+ final Watcher Function(String) _strategy;
+ final PackageNode node;
+
+ /// The actual watcher instance.
+ Watcher _watcher;
+ Watcher get watcher => _watcher;
+
+ /// Creates a new watcher for a [PackageNode].
+ ///
+ /// May optionally specify a [watch] strategy, otherwise will attempt a
+ /// reasonable default based on the current platform and the type of path
+ /// (i.e. a file versus directory).
+ PackageNodeWatcher(
+ this.node, {
+ Watcher watch(String path),
+ }) : _strategy = watch ?? _default;
+
+ /// Returns a stream of records for assets that change recursively.
+ Stream<AssetChange> watch() {
+ assert(_watcher == null);
+ _watcher = _strategy(node.path);
+ final events = _watcher.events;
+ return events.map((e) => AssetChange.fromEvent(node, e));
+ }
+}
diff --git a/build_runner/mono_pkg.yaml b/build_runner/mono_pkg.yaml
new file mode 100644
index 0000000..cebfcb2
--- /dev/null
+++ b/build_runner/mono_pkg.yaml
@@ -0,0 +1,15 @@
+dart:
+ - dev
+
+stages:
+ - analyze_and_format:
+ - group:
+ - dartfmt: sdk
+ - dartanalyzer: --fatal-infos --fatal-warnings .
+ - unit_test:
+ - test: -x integration
+ - e2e_test:
+ - test: -t integration --total-shards 4 --shard-index 0
+ - test: -t integration --total-shards 4 --shard-index 1
+ - test: -t integration --total-shards 4 --shard-index 2
+ - test: -t integration --total-shards 4 --shard-index 3
diff --git a/build_runner/pubspec.yaml b/build_runner/pubspec.yaml
new file mode 100644
index 0000000..acbb7c1
--- /dev/null
+++ b/build_runner/pubspec.yaml
@@ -0,0 +1,55 @@
+name: build_runner
+version: 1.2.8
+description: Tools to write binaries that run builders.
+author: Dart Team <misc@dartlang.org>
+homepage: https://github.com/dart-lang/build/tree/master/build_runner
+
+environment:
+ sdk: ">=2.0.0 <3.0.0"
+
+dependencies:
+ args: ">=1.4.0 <2.0.0"
+ async: ">=1.13.3 <3.0.0"
+ build: ">=1.0.0 <1.2.0"
+ build_config: ^0.3.1
+ build_daemon: ^0.4.0
+ build_resolvers: "^1.0.0"
+ build_runner_core: ^2.0.3
+ code_builder: ">2.3.0 <4.0.0"
+ collection: ^1.14.0
+ crypto: ">=0.9.2 <3.0.0"
+ dart_style: ^1.0.0
+ glob: ^1.1.0
+ graphs: ^0.2.0
+ http_multi_server: ^2.0.0
+ io: ^0.3.0
+ js: ^0.6.1+1
+ logging: ^0.11.2
+ meta: ^1.1.0
+ mime: ^0.9.3
+ path: ^1.1.0
+ pedantic: ^1.0.0
+ pool: ^1.0.0
+ pub_semver: ^1.4.0
+ pubspec_parse: ^0.1.0
+ shelf: ">=0.6.5 <0.8.0"
+ shelf_web_socket: ^0.2.2+4
+ stack_trace: ^1.9.0
+ stream_transform: ^0.0.9
+ timing: ^0.1.1
+ watcher: ^0.9.7
+ web_socket_channel: ^1.0.9
+ yaml: ^2.1.0
+
+dev_dependencies:
+ build_test: ^0.10.0
+ build_modules: '>=0.4.0 <2.0.0'
+ build_web_compilers: ^1.0.0
+ mockito: ^4.0.0
+ package_resolver: ^1.0.2
+ stream_channel: ^1.6.0
+ test: ^1.3.3
+ test_descriptor: ^1.0.0
+ test_process: ^1.0.0
+ _test_common:
+ path: ../_test_common
diff --git a/build_runner/tool/build.dart b/build_runner/tool/build.dart
new file mode 100644
index 0000000..45bcdc3
--- /dev/null
+++ b/build_runner/tool/build.dart
@@ -0,0 +1,41 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:build_config/build_config.dart';
+import 'package:build_modules/builders.dart';
+import 'package:build_runner/build_runner.dart';
+import 'package:build_runner_core/build_runner_core.dart';
+import 'package:build_web_compilers/builders.dart';
+
+main(List<String> args) async {
+ await run(args, [
+ apply(
+ 'build_modules|dart2js',
+ [
+ moduleLibraryBuilder,
+ metaModuleBuilderFactoryForPlatform('dart2js'),
+ metaModuleCleanBuilderFactoryForPlatform('dart2js'),
+ moduleBuilderFactoryForPlatform('dart2js'),
+ ],
+ toAllPackages(),
+ isOptional: true,
+ hideOutput: true),
+ apply(
+ 'build_web_compilers|entrypoint',
+ [
+ (_) => webEntrypointBuilder(BuilderOptions({
+ 'compiler': 'dart2js',
+ 'dart2js_args': ['--minify', '--omit-implicit-checks']
+ }))
+ ],
+ toAllPackages(),
+ isOptional: false,
+ hideOutput: false,
+ defaultGenerateFor: InputSet(include: [
+ 'lib/src/server/graph_viz_main.dart',
+ 'lib/src/server/build_updates_client/hot_reload_client.dart',
+ ])),
+ ]);
+}
diff --git a/build_test/BUILD.gn b/build_test/BUILD.gn
new file mode 100644
index 0000000..73d3814
--- /dev/null
+++ b/build_test/BUILD.gn
@@ -0,0 +1,31 @@
+# This file is generated by importer.py for build_test-0.10.6
+
+import("//build/dart/dart_library.gni")
+
+dart_library("build_test") {
+ package_name = "build_test"
+
+ # This parameter is left empty as we don't care about analysis or exporting
+ # these sources outside of the tree.
+ sources = []
+
+ disable_analysis = true
+
+ deps = [
+ "//third_party/dart-pkg/pub/pedantic",
+ "//third_party/dart-pkg/pub/logging",
+ "//third_party/dart-pkg/pub/async",
+ "//third_party/dart-pkg/pub/matcher",
+ "//third_party/dart-pkg/pub/glob",
+ "//third_party/dart-pkg/pub/crypto",
+ "//third_party/dart-pkg/pub/watcher",
+ "//third_party/dart-pkg/pub/stream_transform",
+ "//third_party/dart-pkg/pub/html",
+ "//third_party/dart-pkg/pub/build",
+ "//third_party/dart-pkg/pub/build_resolvers",
+ "//third_party/dart-pkg/pub/test",
+ "//third_party/dart-pkg/pub/package_resolver",
+ "//third_party/dart-pkg/pub/build_config",
+ "//third_party/dart-pkg/pub/path",
+ ]
+}
diff --git a/build_test/CHANGELOG.md b/build_test/CHANGELOG.md
new file mode 100644
index 0000000..dc8c5a6
--- /dev/null
+++ b/build_test/CHANGELOG.md
@@ -0,0 +1,364 @@
+## 0.10.6
+
+- Allow build_resolvers version `1.0.0`.
+
+## 0.10.5
+
+- Improve error messages for unresolvable URIs in the PackageAssetReader.
+
+## 0.10.4
+
+- Allow using `PackageAssetReader` when the current working directory is not the
+ root package directory as long as it uses a pub layout.
+
+## 0.10.3+4
+
+- Increased the upper bound for `package:analyzer` to `<0.35.0`.
+
+## 0.10.3+3
+
+- Increased the upper bound for `package:analyzer` to '<0.34.0'.
+
+## 0.10.3+2
+
+- Declare support for `package:build` version 1.0.0.
+
+## 0.10.3+1
+
+- Increased the upper bound for the sdk to `<3.0.0`.
+
+## 0.10.3
+
+- Require test version ^0.12.42 and use `TypeMatcher`.
+- Improve performance of test methods which use a `Resolver` by keeping a cached
+ instance of `AnalyzerResolvers`.
+
+## 0.10.2+4
+
+- Allow the latest build_config.
+
+## 0.10.2+3
+
+- Remove package:build_barback dependency, and use public apis from package:test
+ to directly do the bootstrapping instead of wrapping the transformer.
+
+## 0.10.2+2
+
+- Avoid looking for files from `Uri.path` paths.
+
+## 0.10.2+1
+
+- Add back an implementation of `findAssets` in `PackageAssetReader`.
+
+## 0.10.2
+
+- Added a `DebugIndexBuilder`, which by default generates a `test/index.html`
+ with links to debug tests in your `test/**_test.dart` folder, linking to the
+ generated `*_test.debug.html` files. **NOTE**: This only works for web-based
+ tests.
+- Fix `PackageAssetReader` when running with a package map pointing to a
+ "packages" directory structure, as is generated by `build_runner`. Drop
+ support for a broken `findAssets` implementation.
+
+## 0.10.1+1
+
+- Replace `BarbackResolvers` with `AnalyzerResolvers` from `build_resolvers` by
+ default.
+
+## 0.10.1
+
+- Allow overriding the `Resolvers` used for `resolve*` utilities.
+- Bug Fix: Don't call the `action` multiple times when there are multiple
+ sources passed to `resolve*`.
+
+## 0.10.0
+
+- Added automatic generation of `.debug.html` files for all tests, which can
+ be loaded in the browser to directly run tests and debug them without going
+ through the package:test runner.
+- Update to package:build version `0.12.0`.
+- Removed `CopyBuilder` in favor of `TestBuilder` which takes closures to
+ change behavior rather than adding configuration for every possible
+ modification.
+- Added support for the special placeholder `{$lib/$test/$web}` assets
+ supported by the `build_runner` and `bazel_codegen` implementations of
+ `package:build`. For an example see `test/test_builder_test.dart`. Note that
+ this is technically a **BREAKING CHANGE**, as additional inputs will be
+ matched for overzealous builders (like `TestBuilder`).
+- Added `resolverFor` as an optional parameter to `resolveSources`. By default
+ a `Resolver` is returned for the _first_ asset provided; to modify that the
+ name of another asset may be provided. This is a **BREAKING CHANGE**, as
+ previously the last asset was used.
+
+## 0.9.4
+
+- Added `InMemoryAssetReader.shareAssetCache` constructor. This is useful for the
+ case where the reader should be kept up to date as assets are written through
+ a writer.
+- Added `buildInputs` stream to `CopyBuilder` which emits an event for each
+ `BuildStep.inputId` at the top of the `build` method.
+- `CopyBuilder` automatically skips the placeholder files (any file ending in
+ `$`). This is technically breaking but should not affect any real users and is
+ not being released as a breaking change.
+- Changed `TestBootstrapBuilder` to only target `_test.dart` files.
+
+## 0.9.3
+
+- Added `resolveSources`, a way to resolve multiple libraries for testing,
+ including any combination of fake files (in-memory, created in the test) and
+ real ones (from on-disk packages):
+
+```dart
+test('multiple assets, some mock, some on disk', () async {
+ final real = 'build_test|test/_files/example_lib.dart';
+ final mock = 'build_test|test/_files/not_really_here.dart';
+ final library = await resolveSources(
+ {
+ real: useAssetReader,
+ mock: r'''
+ // This is a fake library that we're mocking.
+ library example;
+
+ // This is a real on-disk library we are using.
+ import 'example_lib.dart';
+
+ class ExamplePrime extends Example {}
+ ''',
+ },
+ (resolver) => resolver.findLibraryByName('example'),
+ );
+ final type = library.getType('ExamplePrime');
+ expect(type, isNotNull);
+ expect(type.supertype.name, 'Example');
+});
+```
+
+## 0.9.2
+
+- Add `inputExtension` argument to `CopyBuilder`. When used the builder with
+ throw if any assets are provided that don't match the input extension.
+
+## 0.9.1
+
+- Allow `build_barback` version `0.5.x`. The breaking behavior change should not
+ impact test uses that don't already have a version constraint on that package.
+
+## 0.9.0
+
+- Added the `TestBootstrapBuilder` under the `builder.dart` library. This can
+ be used to bootstrap tests similar to the `test/pub_serve` Transformer.
+ - **Known Issue**: Custom html files are not supported.
+- **Breaking**: All `AssetReader#findAssets` implementations now return a
+ `Stream<AssetId>` to match the latest `build` package.
+- **Breaking**: The `DatedValue`, `DatedString`, and `DatedBytes` apis are now
+ gone, since timestamps are no longer used by package:build. Instead the
+ `InMemoryAssetReader` and other apis take a `Map<AssetId, dynamic>`, and will
+ automatically convert any `String` values into `List<int>` values.
+- **Breaking**: The `outputs` map of `testBuilder` works a little bit
+ differently due to the removal of `DatedValue` and `DatedString`.
+ * If a value provided is a `String`, then the asset is by default decoded
+ using UTF8, and matched against the string.
+ * If the value is a `matcher`, it will match againt the actual bytes of the
+ asset (in `List<int>` form).
+ * A new matcher was added, `decodedMatches`, which can be combined with other
+ matchers to match against the string contents. For example, to match a
+ string containing a substring, you would do
+ `decodedMatches(contains('some substring'))`.
+
+## 0.8.0
+
+- `InMemoryAssetReader`, `MultiAssetReader`, `StubAssetReader` and
+ `PackageAssetReader` now implement the `MultiPackageAssetReader` interface.
+- `testBuilder` now supports `Builder`s that call `findAssets` in non-root
+ packages.
+- Added a `GlobbingBuilder` which globs files in a package.
+- Added the `RecordingAssetReader` interface, which adds the
+ `Iterable<AssetId> get assetsRead` getter.
+- `InMemoryAssetReader` now implements `RecordingAssetReader`.
+- **Breaking**: The `MultiAssetReader` now requires all its wrapped readers to
+ implement the `MultiPackageAssetReader` interface.
+ - This should not affect most users, since all readers provided by this
+ package now implement that interface.
+
+## 0.7.1
+
+- Add `mapAssetIds` argument to `checkOutputs` for cases where the logical asset
+ location recorded by the builder does not match the written location.
+
+- Add `recordLogs`, a top-level function that invokes `scopeLog` and captures
+ the resulting `Stream<LogRecord>` for testing. Can be used with the provided
+ `anyLogOf`, `infoLogOf`, `warningLogOf`, `severeLogOf` matchers in order to
+ test a build process:
+
+```dart
+test('should log "uh oh!"', () async {
+ final logs = recordLogs(() => runBuilder());
+ expect(logs, emitsInOrder([
+ anyLogOf('uh oh!'),
+ ]);
+});
+```
+
+- Add the constructors `forPackages` and `forPackageRoot` to
+ `PackageAssetReader` - these are convenience constructors for pointing to a
+ small set of packages (fake or real) for testing purposes. For example:
+
+```dart
+test('should resolve multiple libraries', () async {
+ reader = new PackageAssetReader.forPackages({
+ 'example_a': '_libs/example_a',
+ 'example_b': '_libs/example_b',
+ });
+ expect(await reader.canRead(fileFromExampleLibA), isTrue);
+ expect(await reader.canRead(fileFromExampleLibB), isTrue);
+ expect(await reader.canRead(fileFromExampleLibC), isFalse);
+});
+```
+
+## 0.7.0+1
+
+- Switch to a typedef from function type syntax for compatibility with older
+ SDKs.
+
+## 0.7.0
+
+- **Breaking**: `resolveSource` and `resolveAsset` now take an `action` to
+ perform with the Resolver instance.
+
+## 0.6.4+1
+
+- Allow `package:build_barback` v0.4.x
+
+## 0.6.4
+
+- Allow `package:build` v0.10.x
+- `AssetReader` implementations always return `Future` from `canRead`
+
+## 0.6.3
+
+- Added `resolveAsset`, which is similar to `resolveSource` but specifies a
+ real asset that lives on the file system. For example, to resolve the main
+ library of `package:collection`:
+
+```dart
+var pkgCollection = new AssetId('collection', 'lib/collection.dart');
+var resolver = await resolveAsset(pkgCollection);
+// ...
+```
+
+- Supports `package:build_barback >=0.2.0 <0.4.0`.
+
+## 0.6.2
+
+- Internal version bump.
+
+## 0.6.1
+
+- Declare an output extension in `_ResolveSourceBuilder` so it is not skipped
+
+## 0.6.0
+
+- Support build 0.9.0
+ - Rename `hasInput` to `canRead` in `AssetReader` implementations
+ - Replace `declareOutputs` with `buildExtensions` in `Builder` implementations
+- **Breaking** `CopyBuilder` no longer has an `outputPackage` field since outputs
+ can only ever be in the same package as inputs.
+
+## 0.5.2
+
+- Add `MultiAssetReader` to the public API.
+
+## 0.5.1
+
+- Add `PackageAssetReader`, a standalone asset reader that uses a
+ `PackageResolver` to map an `AssetId` to a location on disk.
+- Add `resolveSource`, a top-level function that can resolve arbitrary Dart
+ source code. This can be useful in testing your own code that uses a
+ `Resolver` to do type checks.
+
+## 0.5.0
+
+- Add `findAssets` implementations to StubAssetReader an InMemoryAssetReader
+- **BREAKING**: InMemoryAssetReader constructor uses named optional parameters
+
+## 0.4.1
+
+- Make `scopeLog` visible so tests can be run with an available `log` without
+ going through runBuilder.
+
+## 0.4.0+1
+
+- Bug Fix: Correctly identify missing outputs in testBuilder
+
+## 0.4.0
+
+Updates to work with `build` version 0.7.0.
+
+### New Features
+- The `testBuilder` method now accepts `List<int>` values for both
+ `sourceAssets` and `outputs`.
+- The `checkOutputs` method is now public.
+
+### Breaking Changes
+- The `testBuilder` method now requires a `RecordingAssetWriter` instead of
+ just an `AssetWriter` for the `writer` parameter.
+- If a `Matcher` is provided as a value in `outputs`, then it will match against
+ the same value that was written. For example if your builder uses
+ `writeAsString` then it will match against that string. If you use
+ `writeAsBytes` then it will match against those bytes. It will not
+ automatically convert to/from bytes and strings.
+- Deleted the `makeAsset` and `makeAssets` methods. There is no more `Asset`
+ class so these don't really have any value any more.
+- The signature of `addAssets` has changed to
+ `void addAssets(Map<AssetId, dynamic> assets, InMemoryAssetWriter writer)`.
+ Values of the map may be either `String` or `List<int>`.
+- `InMemoryAssetReader#assets` and `InMemoryAssetWriter#assets` have changed to
+ a type of `Map<AssetId, DatedValue>` from a type of
+ `Map<AssetId, DatedString>`. `DatedValue` has both a `stringValue` and
+ `bytesValue` getter.
+- `InMemoryAssetReader` and `InMemoryAssetWriter` have been updated to implement
+ the new `AssetReader` and `AssetWriter` interfaces (see the `build` package
+ CHANGELOG for more details).
+- `InMemoryAssetReader#cacheAsset` has been changed to two separate methods,
+ `void cacheStringAsset(AssetId id, String contents)` and
+ `void cacheBytesAsset(AssetId id, List<int> bytes)`.
+- The `equalsAsset` matcher has been removed, since there is no more `Asset`
+ class.
+
+## 0.3.1
+
+- Additional capabilities in testBuilder:
+ - Filter sourceAssets to inputs with `isInput`
+ - Get log records
+ - Ignore output expectations when `outputs` is null
+ - Use a custom `writer`
+
+## 0.3.0
+
+- **BREAKING** removed testPhases utility. Tests should be using testBuilder
+- Drop dependency on build_runner package
+
+## 0.2.1
+
+- Support the package split into build/build_runner/build_barback
+- Expose additional test utilities that used to be internal to build
+
+## 0.2.0
+
+- Upgrade build package to 0.4.0
+- Delete now unnecessary `GenericBuilderTransformer` and use
+ `BuilderTransformer` in the tests.
+
+## 0.1.2
+
+- Add `logLevel` and `onLog` named args to `testPhases`. These can be used
+ to test your log messages, see `test/utils_test.dart` for an example.
+
+## 0.1.1
+
+- Allow String or Matcher for expected output values in `testPhases`.
+
+## 0.1.0
+
+- Initial version, exposes many basic utilities for testing `Builder`s using in
+ memory data structures. Most notably, the `testPhases` method.
diff --git a/build_test/LICENSE b/build_test/LICENSE
new file mode 100644
index 0000000..82e9b52
--- /dev/null
+++ b/build_test/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2016, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of Google Inc. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/build_test/README.md b/build_test/README.md
new file mode 100644
index 0000000..1ecba2a
--- /dev/null
+++ b/build_test/README.md
@@ -0,0 +1,115 @@
+# build_test
+
+<p align="center">
+ Testing utilities for users of <a href="https://pub.dartlang.org/packages/build"><code>package:build</code></a>.
+ <br>
+ <a href="https://travis-ci.org/dart-lang/build">
+ <img src="https://travis-ci.org/dart-lang/build.svg?branch=master" alt="Build Status" />
+ </a>
+ <a href="https://github.com/dart-lang/build/labels/package%3A%20build_test">
+ <img src="https://img.shields.io/github/issues-raw/dart-lang/build/package%3A%20build_test.svg" alt="Issues related to build_test" />
+ </a>
+ <a href="https://pub.dartlang.org/packages/build_test">
+ <img src="https://img.shields.io/pub/v/build_test.svg" alt="Pub Package Version" />
+ </a>
+ <a href="https://pub.dartlang.org/documentation/build_test/latest">
+ <img src="https://img.shields.io/badge/dartdocs-latest-blue.svg" alt="Latest Dartdocs" />
+ </a>
+ <a href="https://gitter.im/dart-lang/build">
+ <img src="https://badges.gitter.im/dart-lang/build.svg" alt="Join the chat on Gitter" />
+ </a>
+</p>
+
+## Installation
+
+This package is intended to only be as a [development dependency][] for users
+of [`package:build`][], and should not be used in any production code. Simply
+add to your `pubspec.yaml`:
+
+```yaml
+dev_dependencies:
+ build_test:
+```
+
+## Running tests
+
+To run tests, you should go through the `pub run build_runner test` command.
+This will compile all your tests to a temp directory and run them using
+`pub run test`. If you would like to see the output directory, you can use the
+`--output=<dir>` option to force the output to go to a specific place.
+
+### Forwarding additional args to `pub run test`
+
+It is very common to need to pass some arguments through to the eventual call
+to `pub run test`. To do this, add all those args after an empty `--` arg.
+
+For example, to run all chrome platform tests you would do
+`pub run build_runner test -- -p chrome`.
+
+## Debugging web tests
+
+This package will automatically create `*.debug.html` files next to all your
+`*_test.dart` files, which can be loaded in a browser from the normal
+development server (`pub run build_runner serve`).
+
+You may also view an index of links to every `*.debug.html` file by navigating
+to `http://localhost:8081` (or wherever your `test` folder is being served).
+
+## Writing tests for your custom Builder
+
+In addition to assiting in running normal tests, this package provides some
+utilities for testing your custom `Builder` classes.
+
+_See the `test` folder in the `build` package for more examples_.
+
+### Run a `Builder` within a test environment
+
+Using [`testBuilder`][api:testBuilder], you can run a functional test of a
+`Builder`, including feeding specific assets, and more. It automatically
+creates an in-memory representation of various utility classes.
+
+### Resolve source code for testing
+
+Using [`resolveAsset`][api:resolveAsset] and
+[`resolveSource`][api:resolveSource], you can resolve Dart source code into a
+static element model, suitable for probing and using within tests of code you
+might have written for a `Builder`:
+
+```dart
+test('should resolve a simple dart file', () async {
+ var resolver = await resolveSource(r'''
+ library example;
+
+ class Foo {}
+ ''');
+ var libExample = resolver.getLibraryByName('example');
+ expect(libExample.getType('Foo'), isNotNull);
+});
+```
+
+### Various test implementations of classes
+
+* [`FakeWatcher`][api:FakeWatcher]
+* [`InMemoryAssetReader`][api:InMemoryAssetReader]
+* [`InMemoryAssetWriter`][api:InMemoryAssetWriter]
+* [`MultiAssetReader`][api:MultiAssetReader]
+* [`PackageAssetReader`][api:PackageAssetReader]
+* [`RecordingAssetWriter`][api:RecordingAssetWriter]
+* [`StubAssetReader`][api:StubAssetReader]
+* [`StubAssetWriter`][api:StubAssetWriter]
+
+[development dependency]: https://www.dartlang.org/tools/pub/dependencies#dev-dependencies
+[`package:build`]: https://pub.dartlang.org/packages/build
+
+[api:FakeWatcher]: https://www.dartdocs.org/documentation/build_test/latest/build_test/FakeWatcher-class.html
+[api:InMemoryAssetReader]: https://www.dartdocs.org/documentation/build_test/latest/build_test/InMemoryAssetReader-class.html
+[api:InMemoryAssetWriter]: https://www.dartdocs.org/documentation/build_test/latest/build_test/InMemoryAssetWriter-class.html
+[api:MultiAssetReader]: https://www.dartdocs.org/documentation/build_test/latest/build_test/MultiAssetReader-class.html
+[api:PackageAssetReader]: https://www.dartdocs.org/documentation/build_test/latest/build_test/PackageAssetReader-class.html
+[api:RecordingAssetWriter]: https://www.dartdocs.org/documentation/build_test/latest/build_test/RecordingAssetWriter-class.html
+[api:StubAssetReader]: https://www.dartdocs.org/documentation/build_test/latest/build_test/StubAssetReader-class.html
+[api:StubAssetWriter]: https://www.dartdocs.org/documentation/build_test/latest/build_test/StubAssetWriter-class.html
+
+[api:resolveAsset]: https://www.dartdocs.org/documentation/build_test/latest/build_test/resolveAsset.html
+[api:resolveSource]: https://www.dartdocs.org/documentation/build_test/latest/build_test/resolveSource.html
+[api:testBuilder]: https://www.dartdocs.org/documentation/build_test/latest/build_test/testBuilder.html
diff --git a/build_test/build.yaml b/build_test/build.yaml
new file mode 100644
index 0000000..2283e15
--- /dev/null
+++ b/build_test/build.yaml
@@ -0,0 +1,22 @@
+builders:
+ test_bootstrap:
+ target: "build_test"
+ import: "package:build_test/builder.dart"
+ builder_factories:
+ - "debugIndexBuilder"
+ - "debugTestBuilder"
+ - "testBootstrapBuilder"
+ build_extensions:
+ $test$:
+ - index.html
+ _test.dart:
+ - _test.dart.vm_test.dart
+ - _test.dart.browser_test.dart
+ - _test.dart.node_test.dart
+ - _test.html
+ - _test.debug.html
+ is_optional: False
+ build_to: cache
+ auto_apply: root_package
+ defaults:
+ generate_for: ["test/**"]
diff --git a/build_test/lib/build_test.dart b/build_test/lib/build_test.dart
new file mode 100644
index 0000000..69ed09d
--- /dev/null
+++ b/build_test/lib/build_test.dart
@@ -0,0 +1,21 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'package:build/src/builder/logging.dart' show scopeLogAsync;
+
+export 'src/assets.dart';
+export 'src/builder.dart';
+export 'src/fake_watcher.dart';
+export 'src/globbing_builder.dart';
+export 'src/in_memory_reader.dart';
+export 'src/in_memory_writer.dart';
+export 'src/matchers.dart';
+export 'src/multi_asset_reader.dart' show MultiAssetReader;
+export 'src/package_reader.dart' show PackageAssetReader;
+export 'src/record_logs.dart';
+export 'src/resolve_source.dart'
+ show useAssetReader, resolveSource, resolveSources, resolveAsset;
+export 'src/stub_reader.dart';
+export 'src/stub_writer.dart';
+export 'src/test_builder.dart';
diff --git a/build_test/lib/builder.dart b/build_test/lib/builder.dart
new file mode 100644
index 0000000..44d7697
--- /dev/null
+++ b/build_test/lib/builder.dart
@@ -0,0 +1,13 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'src/debug_test_builder.dart';
+import 'src/test_bootstrap_builder.dart';
+
+export 'src/debug_test_builder.dart' show DebugTestBuilder;
+export 'src/test_bootstrap_builder.dart' show TestBootstrapBuilder;
+
+DebugTestBuilder debugTestBuilder(_) => const DebugTestBuilder();
+DebugIndexBuilder debugIndexBuilder(_) => const DebugIndexBuilder();
+TestBootstrapBuilder testBootstrapBuilder(_) => TestBootstrapBuilder();
diff --git a/build_test/lib/src/assets.dart b/build_test/lib/src/assets.dart
new file mode 100644
index 0000000..53597a8
--- /dev/null
+++ b/build_test/lib/src/assets.dart
@@ -0,0 +1,32 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:build/build.dart';
+
+import 'in_memory_writer.dart';
+
+int _nextId = 0;
+AssetId makeAssetId([String assetIdString]) {
+ if (assetIdString == null) {
+ assetIdString = 'a|web/asset_$_nextId.txt';
+ _nextId++;
+ }
+ return AssetId.parse(assetIdString);
+}
+
+void addAssets(Map<AssetId, dynamic> assets, InMemoryAssetWriter writer) {
+ assets.forEach((id, value) {
+ if (value is String) {
+ writer.assets[id] = utf8.encode(value);
+ } else if (value is List<int>) {
+ writer.assets[id] = value;
+ } else {
+ throw ArgumentError(
+ '`assets` values must be of type `String` or `List<int>`, got '
+ '${value.runtimeType}.');
+ }
+ });
+}
diff --git a/build_test/lib/src/builder.dart b/build_test/lib/src/builder.dart
new file mode 100644
index 0000000..a2c903f
--- /dev/null
+++ b/build_test/lib/src/builder.dart
@@ -0,0 +1,111 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/build.dart';
+
+/// Overridable behavior for a [Builder.build] method.
+typedef FutureOr BuildBehavior(
+ BuildStep buildStep, Map<String, List<String>> buildExtensions);
+
+/// Copy the input asset to all possible output assets.
+void _defaultBehavior(
+ BuildStep buildStep, Map<String, List<String>> buildExtensions) =>
+ _copyToAll(buildStep, buildExtensions);
+
+T _identity<T>(T value) => value;
+Future<String> _readAsset(BuildStep buildStep, AssetId assetId) =>
+ buildStep.readAsString(assetId);
+
+/// Pass the input assetId through [readFrom] and duplicate the results of
+/// [read] on that asset into every matching output based on [buildExtensions].
+void _copyToAll(BuildStep buildStep, Map<String, List<String>> buildExtensions,
+ {AssetId readFrom(AssetId assetId) = _identity,
+ Future<String> read(BuildStep buildStep, AssetId assetId) = _readAsset}) {
+ if (!buildExtensions.keys.any((e) => buildStep.inputId.path.endsWith(e))) {
+ throw ArgumentError('Only expected inputs with extension in '
+ '${buildExtensions.keys.toList()} but got ${buildStep.inputId}');
+ }
+ for (final inputExtension in buildExtensions.keys) {
+ if (!buildStep.inputId.path.endsWith(inputExtension)) continue;
+ for (final outputExtension in buildExtensions[inputExtension]) {
+ final newPath = _replaceSuffix(
+ buildStep.inputId.path, inputExtension, outputExtension);
+ final id = AssetId(buildStep.inputId.package, newPath);
+ buildStep.writeAsString(id, read(buildStep, readFrom(buildStep.inputId)));
+ }
+ }
+}
+
+/// A build behavior which reads [assetId] and copies it's content into every
+/// output.
+BuildBehavior copyFrom(AssetId assetId) => (buildStep, buildExtensions) =>
+ _copyToAll(buildStep, buildExtensions, readFrom: (_) => assetId);
+
+/// A build behavior which writes either 'true' or 'false' depending on whether
+/// [assetId] can be read.
+BuildBehavior writeCanRead(AssetId assetId) =>
+ (BuildStep buildStep, Map<String, List<String>> buildExtensions) =>
+ _copyToAll(buildStep, buildExtensions,
+ readFrom: (_) => assetId,
+ read: (buildStep, assetId) async =>
+ '${await buildStep.canRead(assetId)}');
+
+/// A [Builder.buildExtensions] which operats on assets ending in [from] and
+/// creates outputs with [postFix] appended as the extension.
+///
+/// If [numCopies] is greater than 1 the postFix will also get a `.0`, `.1`...
+Map<String, List<String>> appendExtension(String postFix,
+ {String from = '', int numCopies = 1}) =>
+ {
+ from: numCopies == 1
+ ? ['$from$postFix']
+ : List.generate(numCopies, (i) => '$from$postFix.$i')
+ };
+
+Map<String, List<String>> replaceExtension(String from, String to) => {
+ from: [to]
+ };
+
+/// A [Builder] whose [build] method can be replaced with a closure.
+class TestBuilder implements Builder {
+ @override
+ final Map<String, List<String>> buildExtensions;
+
+ final BuildBehavior _build;
+ final BuildBehavior _extraWork;
+
+ /// A stream of all the [BuildStep.inputId]s that are seen.
+ ///
+ /// Events are added at the start of the [build] method.
+ final _buildInputsController = StreamController<AssetId>.broadcast();
+ Stream<AssetId> get buildInputs => _buildInputsController.stream;
+
+ /// A stream of all the [BuildStep.inputId]s that are completed.
+ ///
+ /// Events are added at the end of the [build] method.
+ final _buildsCompletedController = StreamController<AssetId>.broadcast();
+ Stream<AssetId> get buildsCompleted => _buildsCompletedController.stream;
+
+ TestBuilder({
+ Map<String, List<String>> buildExtensions,
+ BuildBehavior build,
+ BuildBehavior extraWork,
+ }) : buildExtensions = buildExtensions ?? appendExtension('.copy'),
+ _build = build ?? _defaultBehavior,
+ _extraWork = extraWork;
+
+ @override
+ Future build(BuildStep buildStep) async {
+ if (!await buildStep.canRead(buildStep.inputId)) return;
+ _buildInputsController.add(buildStep.inputId);
+ await _build(buildStep, buildExtensions);
+ if (_extraWork != null) await _extraWork(buildStep, buildExtensions);
+ _buildsCompletedController.add(buildStep.inputId);
+ }
+}
+
+String _replaceSuffix(String path, String old, String replacement) =>
+ path.substring(0, path.length - old.length) + replacement;
diff --git a/build_test/lib/src/debug_test_builder.dart b/build_test/lib/src/debug_test_builder.dart
new file mode 100644
index 0000000..8650711
--- /dev/null
+++ b/build_test/lib/src/debug_test_builder.dart
@@ -0,0 +1,127 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+import 'package:html/dom.dart';
+import 'package:html/parser.dart';
+import 'package:path/path.dart' as p;
+
+const _inputExtension = '_test.dart';
+const _outputExtension = '_test.debug.html';
+
+/// Returns the (optional) user-provided HTML file to use as an input.
+///
+/// For example, for `test/foo_test.dart`, we look for `test/foo_test.html`.
+AssetId _customHtmlId(AssetId test) => test.changeExtension('.html');
+
+/// Returns the builder-generated HTML file for browsers to navigate to.
+AssetId _debugHtmlId(AssetId test) => test.changeExtension('.debug.html');
+
+/// Returns the JS script path for the browser for [dartTest].
+String _jsScriptPath(AssetId dartTest) => '${p.basename(dartTest.path)}.js';
+
+/// Generates a `*.debug.html` for every file in `test/**/*_test.dart`.
+///
+/// This is normally used in order to use Chrome (or another browser's)
+/// debugging tools (such as setting breakpoints) while running a test suite.
+class DebugTestBuilder implements Builder {
+ /// Generates a `.debug.html` for the provided `._test.dart` file.
+ static Future<void> _generateDebugHtml(
+ BuildStep buildStep,
+ AssetId dartTest,
+ ) async {
+ final customHtmlId = _customHtmlId(dartTest);
+ final jsScriptPath = _jsScriptPath(buildStep.inputId);
+ String debugHtml;
+ if (await buildStep.canRead(customHtmlId)) {
+ debugHtml = _replaceCustomHtml(
+ await buildStep.readAsString(customHtmlId),
+ jsScriptPath,
+ );
+ } else {
+ debugHtml = _createDebugHtml(jsScriptPath);
+ }
+ return buildStep.writeAsString(_debugHtmlId(dartTest), debugHtml);
+ }
+
+ /// Returns the content of [customHtml] modified to work with this package.
+ static String _replaceCustomHtml(String customHtml, String jsScriptPath) {
+ final document = parse(customHtml);
+
+ // Replace <link rel="x-dart-test"> with <script src="{jsScriptPath}">.
+ final linkTag = document.querySelector('link[rel="x-dart-test"]');
+ final scriptTag = Element.tag('script');
+ scriptTag.attributes['src'] = jsScriptPath;
+ linkTag.replaceWith(scriptTag);
+
+ // Remove the <script src="packages/test/dart.js"></script> if present.
+ document.querySelector('script[src="packages/test/dart.js"]')?.remove();
+
+ return document.outerHtml;
+ }
+
+ static String _createDebugHtml(String jsScriptPath) => ''
+ '<html>\n'
+ ' <head>\n'
+ ' <script src="$jsScriptPath"></script>\n'
+ ' </head>\n'
+ '</html>\n';
+
+ const DebugTestBuilder();
+
+ @override
+ final buildExtensions = const {
+ _inputExtension: [_outputExtension],
+ };
+
+ @override
+ Future<void> build(BuildStep buildStep) {
+ return _generateDebugHtml(buildStep, buildStep.inputId);
+ }
+}
+
+/// Generates `text/index.html`, useful for navigating and running tests.
+class DebugIndexBuilder implements Builder {
+ static final _allTests = Glob(p.join('test', '**$_inputExtension'));
+
+ static AssetId _outputFor(BuildStep buildStep) {
+ return AssetId(buildStep.inputId.package, p.join('test', 'index.html'));
+ }
+
+ static String _generateHtml(Iterable<AssetId> tests) {
+ if (tests.isEmpty) {
+ return '<strong>No tests found!</strong>';
+ }
+ final buffer = StringBuffer(' <ul>');
+ for (final test in tests) {
+ final path = p.joinAll(p.split(_debugHtmlId(test).path)..removeAt(0));
+ buffer.writeln(' <li><a href="/$path">${test.path}</a></li>');
+ }
+ buffer.writeln(' </ul>');
+ return buffer.toString();
+ }
+
+ const DebugIndexBuilder();
+
+ @override
+ final buildExtensions = const {
+ r'$test$': ['index.html'],
+ };
+
+ @override
+ Future<void> build(BuildStep buildStep) async {
+ final files = await buildStep.findAssets(_allTests).toList();
+ final output = _outputFor(buildStep);
+ return buildStep.writeAsString(
+ output,
+ '<html>\n'
+ ' <body>\n'
+ ' ${_generateHtml(files)}\n'
+ ' </body>\n'
+ '</html>');
+ }
+}
diff --git a/build_test/lib/src/fake_watcher.dart b/build_test/lib/src/fake_watcher.dart
new file mode 100644
index 0000000..b41ebaa
--- /dev/null
+++ b/build_test/lib/src/fake_watcher.dart
@@ -0,0 +1,45 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+
+import 'package:watcher/watcher.dart';
+
+/// A fake [DirectoryWatcher].
+///
+/// Use the static [notifyWatchers] method to add simulated events.
+class FakeWatcher implements DirectoryWatcher {
+ @override
+ String get directory => path;
+
+ @override
+ final String path;
+
+ FakeWatcher(this.path) {
+ watchers.add(this);
+ }
+
+ final _eventsController = StreamController<WatchEvent>();
+
+ @override
+ Stream<WatchEvent> get events => _eventsController.stream;
+
+ @override
+ Future get ready => Future(() {});
+
+ @override
+ bool get isReady => true;
+
+ /// All watchers.
+ static final List<FakeWatcher> watchers = <FakeWatcher>[];
+
+ /// Notify all active watchers of [event] if their [FakeWatcher#path] matches.
+ /// The path will also be adjusted to remove the path.
+ static void notifyWatchers(WatchEvent event) {
+ for (var watcher in watchers) {
+ if (event.path.startsWith(watcher.path)) {
+ watcher._eventsController.add(WatchEvent(event.type, event.path));
+ }
+ }
+ }
+}
diff --git a/build_test/lib/src/globbing_builder.dart b/build_test/lib/src/globbing_builder.dart
new file mode 100644
index 0000000..918ec1f
--- /dev/null
+++ b/build_test/lib/src/globbing_builder.dart
@@ -0,0 +1,30 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+
+/// A simple builder which globs files in a package and outputs a file that
+/// lists each matching file in alphabetical order into another file, one
+/// per line.
+class GlobbingBuilder extends Builder {
+ @override
+ final buildExtensions = {
+ '.globPlaceholder': ['.matchingFiles'],
+ };
+
+ final Glob glob;
+
+ GlobbingBuilder(this.glob);
+
+ @override
+ Future build(BuildStep buildStep) async {
+ var allAssets = await buildStep.findAssets(glob).toList();
+ allAssets.sort((a, b) => a.path.compareTo(b.path));
+ await buildStep.writeAsString(
+ buildStep.inputId.changeExtension('.matchingFiles'),
+ allAssets.map((id) => id.toString()).join('\n'));
+ }
+}
diff --git a/build_test/lib/src/in_memory_reader.dart b/build_test/lib/src/in_memory_reader.dart
new file mode 100644
index 0000000..11ecd35
--- /dev/null
+++ b/build_test/lib/src/in_memory_reader.dart
@@ -0,0 +1,93 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+
+/// An [AssetReader] that records which assets have been read to [assetsRead].
+abstract class RecordingAssetReader implements AssetReader {
+ Iterable<AssetId> get assetsRead;
+}
+
+/// An implementation of [AssetReader] with primed in-memory assets.
+class InMemoryAssetReader extends AssetReader
+ implements MultiPackageAssetReader, RecordingAssetReader {
+ final Map<AssetId, List<int>> assets;
+ final String rootPackage;
+
+ @override
+ final Set<AssetId> assetsRead = Set<AssetId>();
+
+ /// Create a new asset reader that contains [sourceAssets].
+ ///
+ /// Any items in [sourceAssets] which are [String]s will be converted into
+ /// a [List<int>] of bytes.
+ ///
+ /// May optionally define a [rootPackage], which is required for some APIs.
+ InMemoryAssetReader({Map<AssetId, dynamic> sourceAssets, this.rootPackage})
+ : assets = _assetsAsBytes(sourceAssets) ?? <AssetId, List<int>>{};
+
+ /// Create a new asset reader backed by [assets].
+ InMemoryAssetReader.shareAssetCache(this.assets, {this.rootPackage});
+
+ static Map<AssetId, List<int>> _assetsAsBytes(Map<AssetId, dynamic> assets) {
+ if (assets == null || assets.isEmpty) {
+ return {};
+ }
+ final output = <AssetId, List<int>>{};
+ assets.forEach((id, stringOrBytes) {
+ if (stringOrBytes is List<int>) {
+ output[id] = stringOrBytes;
+ } else if (stringOrBytes is String) {
+ output[id] = utf8.encode(stringOrBytes);
+ } else {
+ throw UnsupportedError('Invalid asset contents: $stringOrBytes.');
+ }
+ });
+ return output;
+ }
+
+ @override
+ Future<bool> canRead(AssetId id) async {
+ assetsRead.add(id);
+ return assets.containsKey(id);
+ }
+
+ @override
+ Future<List<int>> readAsBytes(AssetId id) async {
+ if (!await canRead(id)) throw AssetNotFoundException(id);
+ assetsRead.add(id);
+ return assets[id];
+ }
+
+ @override
+ Future<String> readAsString(AssetId id, {Encoding encoding = utf8}) async {
+ if (!await canRead(id)) throw AssetNotFoundException(id);
+ assetsRead.add(id);
+ return utf8.decode(assets[id]);
+ }
+
+ @override
+ Stream<AssetId> findAssets(Glob glob, {String package}) {
+ package ??= rootPackage;
+ if (package == null) {
+ throw UnsupportedError(
+ 'Root package is required to use findAssets without providing an '
+ 'explicit package.');
+ }
+ return Stream.fromIterable(assets.keys
+ .where((id) => id.package == package && glob.matches(id.path)));
+ }
+
+ void cacheBytesAsset(AssetId id, List<int> bytes) {
+ assets[id] = bytes;
+ }
+
+ void cacheStringAsset(AssetId id, String contents, {Encoding encoding}) {
+ encoding ??= utf8;
+ assets[id] = encoding.encode(contents);
+ }
+}
diff --git a/build_test/lib/src/in_memory_writer.dart b/build_test/lib/src/in_memory_writer.dart
new file mode 100644
index 0000000..8bb35cc
--- /dev/null
+++ b/build_test/lib/src/in_memory_writer.dart
@@ -0,0 +1,31 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+
+/// An implementation of [AssetWriter] that records outputs to [assets].
+abstract class RecordingAssetWriter implements AssetWriter {
+ Map<AssetId, List<int>> get assets;
+}
+
+/// An implementation of [AssetWriter] that writes outputs to memory.
+class InMemoryAssetWriter implements RecordingAssetWriter {
+ @override
+ final Map<AssetId, List<int>> assets = {};
+
+ InMemoryAssetWriter();
+
+ @override
+ Future writeAsBytes(AssetId id, List<int> bytes) async {
+ assets[id] = bytes;
+ }
+
+ @override
+ Future writeAsString(AssetId id, String contents,
+ {Encoding encoding = utf8}) async {
+ assets[id] = encoding.encode(contents);
+ }
+}
diff --git a/build_test/lib/src/matchers.dart b/build_test/lib/src/matchers.dart
new file mode 100644
index 0000000..92f3c16
--- /dev/null
+++ b/build_test/lib/src/matchers.dart
@@ -0,0 +1,28 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:test/test.dart';
+
+import 'package:build/build.dart';
+
+/// Matches instance of [AssetNotFoundException].
+final assetNotFoundException = const TypeMatcher<AssetNotFoundException>();
+
+/// Matches instance of [InvalidInputException].
+final invalidInputException = const TypeMatcher<InvalidInputException>();
+
+/// Matches instance of [InvalidOutputException].
+final invalidOutputException = const TypeMatcher<InvalidOutputException>();
+
+/// Matches instance of [PackageNotFoundException].
+final packageNotFoundException = const TypeMatcher<PackageNotFoundException>();
+
+/// Decodes the value using [encoding] and matches it against [expected].
+TypeMatcher<List<int>> decodedMatches(dynamic expected, {Encoding encoding}) {
+ encoding ??= utf8;
+ return TypeMatcher<List<int>>().having(
+ (e) => encoding.decode(e), '${encoding.name} decoded bytes', expected);
+}
diff --git a/build_test/lib/src/multi_asset_reader.dart b/build_test/lib/src/multi_asset_reader.dart
new file mode 100644
index 0000000..a487263
--- /dev/null
+++ b/build_test/lib/src/multi_asset_reader.dart
@@ -0,0 +1,61 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:async/async.dart';
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+
+/// A [MultiPackageAssetReader] that delegates to multiple other asset
+/// readers.
+///
+/// [MultiAssetReader] attempts to check every provided
+/// [MultiPackageAssetReader] to see if they are capable of reading an
+/// [AssetId], otherwise checks the next reader.
+class MultiAssetReader extends AssetReader implements MultiPackageAssetReader {
+ final List<MultiPackageAssetReader> _readers;
+
+ MultiAssetReader(this._readers);
+
+ @override
+ Future<bool> canRead(AssetId id) async {
+ for (var reader in _readers) {
+ if (await reader.canRead(id)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ @override
+ Future<List<int>> readAsBytes(AssetId id) async =>
+ (await _readerWith(id)).readAsBytes(id);
+
+ @override
+ Future<String> readAsString(AssetId id, {Encoding encoding = utf8}) async =>
+ (await _readerWith(id)).readAsString(id, encoding: encoding);
+
+ /// Returns all readable assets matching [glob] under [package].
+ ///
+ /// **NOTE**: This is a combined view of all provided readers. As such it is
+ /// possible that an [AssetId] will be iterated over more than once, unlike
+ /// other implementations of [AssetReader].
+ @override
+ Stream<AssetId> findAssets(Glob glob, {String package}) => StreamGroup.merge(
+ _readers.map((reader) => reader.findAssets(glob, package: package)));
+
+ /// Returns the first [AssetReader] that contains [id].
+ ///
+ /// Otherwise throws [AssetNotFoundException].
+ Future<AssetReader> _readerWith(AssetId id) async {
+ for (var reader in _readers) {
+ if (await reader.canRead(id)) {
+ return reader;
+ }
+ }
+ throw AssetNotFoundException(id);
+ }
+}
diff --git a/build_test/lib/src/package_reader.dart b/build_test/lib/src/package_reader.dart
new file mode 100644
index 0000000..a9024b5
--- /dev/null
+++ b/build_test/lib/src/package_reader.dart
@@ -0,0 +1,153 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:build/build.dart';
+import 'package:glob/glob.dart';
+import 'package:package_resolver/package_resolver.dart';
+import 'package:path/path.dart' as p;
+import 'package:stream_transform/stream_transform.dart';
+
+/// Resolves using a [SyncPackageResolver] before reading from the file system.
+///
+/// For a simple implementation that uses the current isolate's package
+/// resolution logic (i.e. whatever you have generated in `.packages` in most
+/// cases), use [currentIsolate]:
+/// ```dart
+/// var assetReader = await PackageAssetReader.currentIsolate();
+/// ```
+class PackageAssetReader extends AssetReader
+ implements MultiPackageAssetReader {
+ final SyncPackageResolver _packageResolver;
+
+ /// What package is the originating build occurring in.
+ final String _rootPackage;
+
+ /// Wrap a [SyncPackageResolver] to identify where files are located.
+ ///
+ /// To use a normal [PackageResolver] use `asSync`:
+ /// ```
+ /// new PackageAssetReader(await packageResolver.asSync);
+ /// ```
+ PackageAssetReader(this._packageResolver, [this._rootPackage]);
+
+ /// A [PackageAssetReader] with a single [packageRoot] configured.
+ ///
+ /// It is assumed that every _directory_ in [packageRoot] is a package where
+ /// the name of the package is the name of the directory. This is similar to
+ /// the older "packages" folder paradigm for resolution.
+ factory PackageAssetReader.forPackageRoot(String packageRoot,
+ [String rootPackage]) {
+ // This purposefully doesn't use SyncPackageResolver.root, because that is
+ // assuming a symlink collection and not directories, and this factory is
+ // more useful for a user-created collection of folders for testing.
+ final directory = Directory(packageRoot);
+ final packages = <String, String>{};
+ for (final entity in directory.listSync()) {
+ if (entity is Directory) {
+ final name = p.basename(entity.path);
+ packages[name] = entity.uri.toString();
+ }
+ }
+ return PackageAssetReader.forPackages(packages, rootPackage);
+ }
+
+ /// Returns a [PackageAssetReader] with a simple [packageToPath] mapping.
+ factory PackageAssetReader.forPackages(Map<String, String> packageToPath,
+ [String rootPackage]) =>
+ PackageAssetReader(
+ SyncPackageResolver.config(packageToPath.map((k, v) => MapEntry(
+ k, Uri.parse(p.absolute(v, 'lib')).replace(scheme: 'file')))),
+ rootPackage);
+
+ /// A reader that can resolve files known to the current isolate.
+ ///
+ /// A [rootPackage] should be provided for full API compatibility.
+ static Future<PackageAssetReader> currentIsolate({String rootPackage}) async {
+ var resolver = PackageResolver.current;
+ return PackageAssetReader(await resolver.asSync, rootPackage);
+ }
+
+ File _resolve(AssetId id) {
+ final uri = id.uri;
+ if (uri.isScheme('package')) {
+ final uri = _packageResolver.resolveUri(id.uri);
+ if (uri != null) {
+ return File.fromUri(uri);
+ }
+ }
+ if (id.package == _rootPackage) {
+ return File(p.canonicalize(p.join(_rootPackagePath, id.path)));
+ }
+ throw UnsupportedError('Unable to resolve $id');
+ }
+
+ String get _rootPackagePath {
+ // If the root package has a pub layout, use `packagePath`.
+ final root = _packageResolver.packagePath(_rootPackage);
+ if (Directory(p.join(root, 'lib')).existsSync()) {
+ return root;
+ }
+ // Assume the cwd is the package root.
+ return p.current;
+ }
+
+ @override
+ Stream<AssetId> findAssets(Glob glob, {String package}) {
+ package ??= _rootPackage;
+ if (package == null) {
+ throw UnsupportedError(
+ 'Root package must be provided to use `findAssets` without an '
+ 'explicit `package`.');
+ }
+ var packageLibDir = _packageResolver.packageConfigMap[package];
+ if (packageLibDir == null) {
+ throw UnsupportedError('Unable to find package $package');
+ }
+
+ var packageFiles = Directory.fromUri(packageLibDir)
+ .list(recursive: true)
+ .where((e) => e is File)
+ .map((f) =>
+ p.join('lib', p.relative(f.path, from: p.fromUri(packageLibDir))));
+ if (package == _rootPackage) {
+ packageFiles = packageFiles.transform(merge(Directory(_rootPackagePath)
+ .list(recursive: true)
+ .where((e) => e is File)
+ .map((f) => p.relative(f.path, from: _rootPackagePath))
+ .where((p) => !(p.startsWith('packages/') || p.startsWith('lib/')))));
+ }
+ return packageFiles.where(glob.matches).map((p) => AssetId(package, p));
+ }
+
+ @override
+ Future<bool> canRead(AssetId id) {
+ final file = _resolve(id);
+ if (file == null) {
+ return Future.value(false);
+ }
+ return file.exists();
+ }
+
+ @override
+ Future<List<int>> readAsBytes(AssetId id) {
+ final file = _resolve(id);
+ if (file == null) {
+ throw ArgumentError('Could not read $id.');
+ }
+ return file.readAsBytes();
+ }
+
+ @override
+ Future<String> readAsString(AssetId id, {Encoding encoding = utf8}) {
+ final file = _resolve(id);
+ if (file == null) {
+ throw ArgumentError('Could not read $id.');
+ }
+ return file.readAsString(encoding: encoding);
+ }
+}
diff --git a/build_test/lib/src/record_logs.dart b/build_test/lib/src/record_logs.dart
new file mode 100644
index 0000000..35cf8a0
--- /dev/null
+++ b/build_test/lib/src/record_logs.dart
@@ -0,0 +1,91 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/src/builder/logging.dart';
+import 'package:matcher/matcher.dart';
+import 'package:logging/logging.dart';
+
+/// Executes [run] with a new [Logger], returning the resulting log records.
+///
+/// The returned [Stream] is _closed_ after the [run] function is executed. If
+/// [run] returns a [Future], that future is awaited _before_ the stream is
+/// closed.
+///
+/// ```dart
+/// test('should log "uh oh!"', () async {
+/// final logs = recordLogs(() => runBuilder());
+/// expect(logs, emitsInOrder([
+/// anyLogOf('uh oh!'),
+/// ]);
+/// });
+/// ```
+Stream<LogRecord> recordLogs(dynamic run(), {String name = ''}) {
+ final logger = Logger(name);
+ Timer.run(() async {
+ await scopeLogAsync(() => Future.value(run()), logger);
+ logger.clearListeners();
+ });
+ return logger.onRecord;
+}
+
+/// Matches [LogRecord] of any level whose message is [messageOrMatcher].
+///
+/// ```dart
+/// anyLogOf('Hello World)'; // Exactly match 'Hello World'.
+/// anyLogOf(contains('ERROR')); // Contains the sub-string 'ERROR'.
+/// ```
+Matcher anyLogOf(dynamic messageOrMatcher) =>
+ _LogRecordMatcher(anything, messageOrMatcher);
+
+/// Matches [LogRecord] of [Level.INFO] where message is [messageOrMatcher].
+Matcher infoLogOf(dynamic messageOrMatcher) =>
+ _LogRecordMatcher(Level.INFO, messageOrMatcher);
+
+/// Matches [LogRecord] of [Level.WARNING] where message is [messageOrMatcher].
+Matcher warningLogOf(dynamic messageOrMatcher) =>
+ _LogRecordMatcher(Level.WARNING, messageOrMatcher);
+
+/// Matches [LogRecord] of [Level.SEVERE] where message is [messageOrMatcher].
+Matcher severeLogOf(dynamic messageOrMatcher) =>
+ _LogRecordMatcher(Level.SEVERE, messageOrMatcher);
+
+class _LogRecordMatcher extends Matcher {
+ final Matcher _level;
+ final Matcher _message;
+
+ factory _LogRecordMatcher(dynamic levelOr, dynamic messageOr) =>
+ _LogRecordMatcher._(levelOr is Matcher ? levelOr : equals(levelOr),
+ messageOr is Matcher ? messageOr : equals(messageOr));
+
+ _LogRecordMatcher._(this._level, this._message);
+
+ @override
+ Description describe(Description description) {
+ description.add('level: ');
+ _level.describe(description);
+ description.add(', message: ');
+ _message.describe(description);
+ return description;
+ }
+
+ @override
+ Description describeMismatch(
+ covariant LogRecord item, Description description, _, __) {
+ if (!_level.matches(item.level, {})) {
+ _level.describeMismatch(item.level, description, {}, false);
+ }
+ if (!_message.matches(item.message, {})) {
+ _message.describeMismatch(item.message, description, {}, false);
+ }
+ return description;
+ }
+
+ @override
+ bool matches(item, _) =>
+ item is LogRecord &&
+ _level.matches(item.level, {}) &&
+ _message.matches(item.message, {});
+}
diff --git a/build_test/lib/src/resolve_source.dart b/build_test/lib/src/resolve_source.dart
new file mode 100644
index 0000000..bd07d23
--- /dev/null
+++ b/build_test/lib/src/resolve_source.dart
@@ -0,0 +1,234 @@
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/build.dart';
+import 'package:build_resolvers/build_resolvers.dart';
+import 'package:package_resolver/package_resolver.dart';
+import 'package:pedantic/pedantic.dart';
+
+import 'in_memory_reader.dart';
+import 'in_memory_writer.dart';
+import 'multi_asset_reader.dart';
+import 'package_reader.dart';
+
+final defaultResolvers = AnalyzerResolvers();
+
+/// Marker constant that may be used in combination with [resolveSources].
+///
+/// Use of this string means instead of using the contents of the string as the
+/// source of a given asset, instead read the file from the default or provided
+/// [AssetReader].
+const useAssetReader = '__useAssetReader__';
+
+/// A convenience method for using [resolveSources] with a single source file.
+Future<T> resolveSource<T>(
+ String inputSource,
+ FutureOr<T> action(Resolver resolver), {
+ AssetId inputId,
+ PackageResolver resolver,
+ Future<Null> tearDown,
+ Resolvers resolvers,
+}) {
+ inputId ??= AssetId('_resolve_source', 'lib/_resolve_source.dart');
+ return _resolveAssets(
+ {
+ '${inputId.package}|${inputId.path}': inputSource,
+ },
+ inputId.package,
+ action,
+ resolver: resolver,
+ resolverFor: inputId,
+ tearDown: tearDown,
+ resolvers: resolvers,
+ );
+}
+
+/// Resolves and runs [action] using a created resolver for [inputs].
+///
+/// Inputs accepts the pattern of `<package>|<path>.dart`, for example:
+/// ```
+/// {
+/// 'test_lib|lib/test_lib.dart': r'''
+/// // Contents of test_lib.dart go here.
+/// ''',
+/// }
+/// ```
+///
+/// You may provide [useAssetReader] as the value of any input in order to read
+/// it from the file system instead of being forced to provide it inline as a
+/// string. This is useful for mixing real and mocked assets.
+///
+/// Example use:
+/// ```
+/// import 'package:build_test/build_test.dart';
+/// import 'package:test/test.dart';
+///
+/// void main() {
+/// test('should find a Foo type', () async {
+/// var library = await resolveSources({
+/// 'test_lib|lib/test_lib.dart': r'''
+/// library example;
+///
+/// class Foo {}
+/// ''',
+/// }, (resolver) => resolver.findLibraryByName('example'));
+/// expect(library.getType('Foo'), isNotNull);
+/// });
+/// }
+/// ```
+///
+/// By default the [Resolver] is unusable after [action] completes. To keep the
+/// resolver active across multiple tests (for example, use `setUpAll` and
+/// `tearDownAll`, provide a `tearDown` [Future]:
+/// ```
+/// import 'dart:async';
+/// import 'package:build/build.dart';
+/// import 'package:build_test/build_test.dart';
+/// import 'package:test/test.dart';
+///
+/// void main() {
+/// Resolver resolver;
+/// var resolverDone = new Completer<Null>();
+///
+/// setUpAll(() async {
+/// resolver = await resolveSources(
+/// {...},
+/// (resolver) => resolver,
+/// tearDown: resolverDone.future,
+/// );
+/// });
+///
+/// tearDownAll(() => resolverDone.complete());
+///
+/// test('...', () async {
+/// // Use the resolver here, and in other tests.
+/// });
+/// }
+/// ```
+///
+/// May provide [resolverFor] to return the [Resolver] for the asset provided,
+/// otherwise defaults to the first one in [inputs].
+///
+/// **NOTE**: All `package` dependencies are resolved using [PackageAssetReader]
+/// - by default, [PackageAssetReader.currentIsolate]. A custom [resolver] may
+/// be provided to map files not visible to the current package's runtime.
+Future<T> resolveSources<T>(
+ Map<String, String> inputs,
+ FutureOr<T> action(Resolver resolver), {
+ PackageResolver resolver,
+ String resolverFor,
+ String rootPackage,
+ Future<Null> tearDown,
+ Resolvers resolvers,
+}) {
+ if (inputs == null || inputs.isEmpty) {
+ throw ArgumentError.value(inputs, 'inputs', 'Must be a non-empty Map');
+ }
+ return _resolveAssets(
+ inputs,
+ rootPackage ?? AssetId.parse(inputs.keys.first).package,
+ action,
+ resolver: resolver,
+ resolverFor: AssetId.parse(resolverFor ?? inputs.keys.first),
+ tearDown: tearDown,
+ resolvers: resolvers,
+ );
+}
+
+/// A convenience for using [resolveSources] with a single [inputId] from disk.
+Future<T> resolveAsset<T>(
+ AssetId inputId,
+ FutureOr<T> action(Resolver resolver), {
+ PackageResolver resolver,
+ Future<Null> tearDown,
+ Resolvers resolvers,
+}) {
+ return _resolveAssets(
+ {
+ '${inputId.package}|${inputId.path}': useAssetReader,
+ },
+ inputId.package,
+ action,
+ resolver: resolver,
+ resolverFor: inputId,
+ tearDown: tearDown,
+ resolvers: resolvers,
+ );
+}
+
+/// Internal-only backing implementation of `resolve{Asset|Source(s)}`.
+///
+/// If the value of an entry of [inputs] is [useAssetReader] then the value is
+/// instead read from the file system, otherwise the provided text is used as
+/// the contents of the asset.
+Future<T> _resolveAssets<T>(
+ Map<String, String> inputs,
+ String rootPackage,
+ FutureOr<T> action(Resolver resolver), {
+ PackageResolver resolver,
+ AssetId resolverFor,
+ Future<Null> tearDown,
+ Resolvers resolvers,
+}) async {
+ final syncResolver = await (resolver ?? PackageResolver.current).asSync;
+ final assetReader = PackageAssetReader(syncResolver, rootPackage);
+ final resolveBuilder = _ResolveSourceBuilder(
+ action,
+ resolverFor,
+ tearDown,
+ );
+ final inputAssets = <AssetId, String>{};
+ await Future.wait(inputs.keys.map((String rawAssetId) async {
+ final assetId = AssetId.parse(rawAssetId);
+ var assetValue = inputs[rawAssetId];
+ if (assetValue == useAssetReader) {
+ assetValue = await assetReader.readAsString(assetId);
+ }
+ inputAssets[assetId] = assetValue;
+ }));
+ final inMemory = InMemoryAssetReader(
+ sourceAssets: inputAssets,
+ rootPackage: rootPackage,
+ );
+ // We don't care about the results of this build.
+ unawaited(runBuilder(
+ resolveBuilder,
+ inputAssets.keys,
+ MultiAssetReader([inMemory, assetReader]),
+ InMemoryAssetWriter(),
+ resolvers ?? defaultResolvers,
+ ));
+ return resolveBuilder.onDone.future;
+}
+
+typedef FutureOr<T> _ResolverAction<T>(Resolver resolver);
+
+/// A [Builder] that is only used to retrieve a [Resolver] instance.
+///
+/// It simulates what a user builder would do in order to resolve a primary
+/// input given a set of dependencies to also use. See `resolveSource`.
+class _ResolveSourceBuilder<T> implements Builder {
+ final _ResolverAction<T> _action;
+ final Future _tearDown;
+ final AssetId _resolverFor;
+
+ final onDone = Completer<T>();
+
+ _ResolveSourceBuilder(this._action, this._resolverFor, this._tearDown);
+
+ @override
+ Future<Null> build(BuildStep buildStep) async {
+ if (_resolverFor != buildStep.inputId) return;
+ var result = await _action(buildStep.resolver);
+ onDone.complete(result);
+ await _tearDown;
+ }
+
+ @override
+ final buildExtensions = const {
+ '': ['.unused']
+ };
+}
diff --git a/build_test/lib/src/stub_reader.dart b/build_test/lib/src/stub_reader.dart
new file mode 100644
index 0000000..50e274a
--- /dev/null
+++ b/build_test/lib/src/stub_reader.dart
@@ -0,0 +1,30 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+import 'package:crypto/crypto.dart';
+import 'package:glob/glob.dart';
+
+/// A no-op implementation of [AssetReader].
+class StubAssetReader extends AssetReader implements MultiPackageAssetReader {
+ StubAssetReader();
+
+ @override
+ Future<bool> canRead(AssetId id) => Future.value(null);
+
+ @override
+ Future<List<int>> readAsBytes(AssetId id) => Future.value(null);
+
+ @override
+ Future<String> readAsString(AssetId id, {Encoding encoding}) =>
+ Future.value(null);
+
+ @override
+ Stream<AssetId> findAssets(Glob glob, {String package}) => null;
+
+ @override
+ Future<Digest> digest(AssetId id) => Future.value(Digest([1, 2, 3]));
+}
diff --git a/build_test/lib/src/stub_writer.dart b/build_test/lib/src/stub_writer.dart
new file mode 100644
index 0000000..d7e0899
--- /dev/null
+++ b/build_test/lib/src/stub_writer.dart
@@ -0,0 +1,18 @@
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+
+/// A no-op implementation of [AssetWriter].
+class StubAssetWriter implements AssetWriter {
+ const StubAssetWriter();
+
+ @override
+ Future writeAsBytes(_, __) => Future.value(null);
+
+ @override
+ Future writeAsString(_, __, {Encoding encoding}) => Future.value(null);
+}
diff --git a/build_test/lib/src/test_bootstrap_builder.dart b/build_test/lib/src/test_bootstrap_builder.dart
new file mode 100644
index 0000000..c4ececf
--- /dev/null
+++ b/build_test/lib/src/test_bootstrap_builder.dart
@@ -0,0 +1,62 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:build/build.dart';
+import 'package:path/path.dart' as p;
+
+/// A [Builder] that injects bootstrapping code used by the test runner to run
+/// tests in --precompiled mode.
+///
+/// This doesn't modify existing code at all, it just adds wrapper files that
+/// can be used to load isolates or iframes.
+class TestBootstrapBuilder extends Builder {
+ @override
+ final buildExtensions = const {
+ '_test.dart': [
+ '_test.dart.vm_test.dart',
+ '_test.dart.browser_test.dart',
+ '_test.dart.node_test.dart',
+ ]
+ };
+ TestBootstrapBuilder();
+
+ @override
+ Future<Null> build(BuildStep buildStep) async {
+ var id = buildStep.inputId;
+
+ await buildStep.writeAsString(id.addExtension('.vm_test.dart'), '''
+ import "dart:isolate";
+
+ import "package:test/bootstrap/vm.dart";
+
+ import "${p.url.basename(id.path)}" as test;
+
+ void main(_, SendPort message) {
+ internalBootstrapVmTest(() => test.main, message);
+ }
+ ''');
+
+ await buildStep.writeAsString(id.addExtension('.browser_test.dart'), '''
+ import "package:test/bootstrap/browser.dart";
+
+ import "${p.url.basename(id.path)}" as test;
+
+ void main() {
+ internalBootstrapBrowserTest(() => test.main);
+ }
+ ''');
+
+ await buildStep.writeAsString(id.addExtension('.node_test.dart'), '''
+ import "package:test/bootstrap/node.dart";
+
+ import "${p.url.basename(id.path)}" as test;
+
+ void main() {
+ internalBootstrapNodeTest(() => test.main);
+ }
+ ''');
+ }
+}
diff --git a/build_test/lib/src/test_builder.dart b/build_test/lib/src/test_builder.dart
new file mode 100644
index 0000000..729bfb7
--- /dev/null
+++ b/build_test/lib/src/test_builder.dart
@@ -0,0 +1,141 @@
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:build/build.dart';
+import 'package:logging/logging.dart';
+import 'package:test/test.dart';
+
+import 'assets.dart';
+import 'in_memory_reader.dart';
+import 'in_memory_writer.dart';
+import 'resolve_source.dart';
+
+AssetId _passThrough(AssetId id) => id;
+
+/// Validates that [actualAssets] matches the expected [outputs].
+///
+/// The keys in [outputs] should be serialized AssetIds in the form
+/// `'package|path'`. The values should match the expected content for the
+/// written asset and may be a String (for `writeAsString`), a `List<int>` (for
+/// `writeAsBytes`) or a [Matcher] for a String or bytes.
+///
+/// [actualAssets] are the IDs that were recorded as written during the build.
+///
+/// Assets are checked against those that were written to [writer]. If other
+/// assets were written through the writer, but not as part of the build
+/// process, they will be ignored. Only the IDs in [actualAssets] are checked.
+///
+/// If assets are written to a location that does not match their logical
+/// association to a package pass `[mapAssetIds]` to translate from the logical
+/// location to the actual written location.
+void checkOutputs(
+ Map<String, /*List<int>|String|Matcher<String|List<int>>*/ dynamic> outputs,
+ Iterable<AssetId> actualAssets,
+ RecordingAssetWriter writer,
+ {AssetId mapAssetIds(AssetId id) = _passThrough}) {
+ var modifiableActualAssets = Set.from(actualAssets);
+ if (outputs != null) {
+ outputs.forEach((serializedId, contentsMatcher) {
+ assert(contentsMatcher is String ||
+ contentsMatcher is List<int> ||
+ contentsMatcher is Matcher);
+
+ var assetId = makeAssetId(serializedId);
+
+ // Check that the asset was produced.
+ expect(modifiableActualAssets, contains(assetId),
+ reason: 'Builder failed to write asset $assetId');
+ modifiableActualAssets.remove(assetId);
+ var actual = writer.assets[mapAssetIds(assetId)];
+ Object expected;
+ if (contentsMatcher is String) {
+ expected = utf8.decode(actual);
+ } else if (contentsMatcher is List<int>) {
+ expected = actual;
+ } else if (contentsMatcher is Matcher) {
+ expected = actual;
+ } else {
+ throw ArgumentError('Expected values for `outputs` to be of type '
+ '`String`, `List<int>`, or `Matcher`, but got `$contentsMatcher`.');
+ }
+ expect(expected, contentsMatcher,
+ reason: 'Unexpected content for $assetId in result.outputs.');
+ });
+ // Check that no extra assets were produced.
+ expect(modifiableActualAssets, isEmpty,
+ reason:
+ 'Unexpected outputs found `$actualAssets`. Only expected $outputs');
+ }
+}
+
+/// Runs [builder] in a test environment.
+///
+/// The test environment supplies in-memory build [sourceAssets] to the builders
+/// under test. [outputs] may be optionally provided to verify that the builders
+/// produce the expected output. If outputs is omitted the only validation this
+/// method provides is that the build did not `throw`.
+///
+/// [generateFor] or the [isInput] call back can specify which assets should be
+/// given as inputs to the builder. These can be omitted if every asset in
+/// [sourceAssets] should be considered an input. [isInput] precedent over
+/// [generateFor] if both are provided.
+///
+/// The keys in [sourceAssets] and [outputs] are paths to file assets and the
+/// values are file contents. The paths must use the following format:
+///
+/// PACKAGE_NAME|PATH_WITHIN_PACKAGE
+///
+/// Where `PACKAGE_NAME` is the name of the package, and `PATH_WITHIN_PACKAGE`
+/// is the path to a file relative to the package. `PATH_WITHIN_PACKAGE` must
+/// include `lib`, `web`, `bin` or `test`. Example: "myapp|lib/utils.dart".
+///
+/// Callers may optionally provide a [writer] to stub different behavior or do
+/// more complex validation than what is possible with [outputs].
+///
+/// Callers may optionally provide an [onLog] callback to do validaiton on the
+/// logging output of the builder.
+Future testBuilder(
+ Builder builder, Map<String, /*String|List<int>*/ dynamic> sourceAssets,
+ {Set<String> generateFor,
+ bool isInput(String assetId),
+ String rootPackage,
+ RecordingAssetWriter writer,
+ Map<String, /*String|List<int>|Matcher<String|List<int>>*/ dynamic> outputs,
+ void onLog(LogRecord log)}) async {
+ writer ??= InMemoryAssetWriter();
+ final reader = InMemoryAssetReader(rootPackage: rootPackage);
+
+ var inputIds = <AssetId>[];
+ sourceAssets.forEach((serializedId, contents) {
+ var id = makeAssetId(serializedId);
+ if (contents is String) {
+ reader.cacheStringAsset(id, contents);
+ } else if (contents is List<int>) {
+ reader.cacheBytesAsset(id, contents);
+ }
+ inputIds.add(id);
+ });
+
+ var allPackages = reader.assets.keys.map((a) => a.package).toSet();
+ for (var pkg in allPackages) {
+ for (var dir in const ['lib', 'web', 'test']) {
+ var asset = AssetId(pkg, '$dir/\$$dir\$');
+ inputIds.add(asset);
+ }
+ }
+
+ isInput ??= generateFor?.contains ?? (_) => true;
+ inputIds = inputIds.where((id) => isInput('$id')).toList();
+
+ var writerSpy = AssetWriterSpy(writer);
+ var logger = Logger('testBuilder');
+ var logSubscription = logger.onRecord.listen(onLog);
+ await runBuilder(builder, inputIds, reader, writerSpy, defaultResolvers,
+ logger: logger);
+ await logSubscription.cancel();
+ var actualOutputs = writerSpy.assetsWritten;
+ checkOutputs(outputs, actualOutputs, writer);
+}
diff --git a/build_test/mono_pkg.yaml b/build_test/mono_pkg.yaml
new file mode 100644
index 0000000..54c8b5b
--- /dev/null
+++ b/build_test/mono_pkg.yaml
@@ -0,0 +1,14 @@
+dart:
+ - dev
+
+stages:
+ - analyze_and_format:
+ - group:
+ - dartfmt: sdk
+ - dartanalyzer: --fatal-infos --fatal-warnings .
+ - unit_test:
+ - command: pub run build_runner test
+
+cache:
+ directories:
+ - .dart_tool/build
diff --git a/build_test/pubspec.yaml b/build_test/pubspec.yaml
new file mode 100644
index 0000000..2a36fea
--- /dev/null
+++ b/build_test/pubspec.yaml
@@ -0,0 +1,31 @@
+name: build_test
+description: Utilities for writing unit tests of Builders.
+version: 0.10.6
+author: Dart Team <misc@dartlang.org>
+homepage: https://github.com/dart-lang/build/tree/master/build_test
+
+environment:
+ sdk: ">=2.0.0 <3.0.0"
+
+dependencies:
+ async: ">=1.2.0 <3.0.0"
+ build: ">=0.12.0 <2.0.0"
+ build_config: ">=0.2.0 <0.4.0"
+ build_resolvers: ">=0.2.0 <2.0.0"
+ crypto: ">=0.9.2 <3.0.0"
+ glob: ^1.1.0
+ html: ">=0.9.0 <=0.14.0"
+ logging: ^0.11.2
+ matcher: ^0.12.0
+ package_resolver: ^1.0.2
+ path: ^1.4.1
+ pedantic: ^1.0.0
+ stream_transform: ^0.0.11
+ test: '>=0.12.42 <2.0.0'
+ watcher: ^0.9.7
+
+dev_dependencies:
+ analyzer: ">=0.27.1 <0.36.0"
+ build_runner: ^1.0.0
+ build_vm_compilers: ^0.1.0
+ collection: ^1.14.0
diff --git a/build_vm_compilers/BUILD.gn b/build_vm_compilers/BUILD.gn
new file mode 100644
index 0000000..e163e9f
--- /dev/null
+++ b/build_vm_compilers/BUILD.gn
@@ -0,0 +1,21 @@
+# This file is generated by importer.py for build_vm_compilers-0.1.1+5
+
+import("//build/dart/dart_library.gni")
+
+dart_library("build_vm_compilers") {
+ package_name = "build_vm_compilers"
+
+ # This parameter is left empty as we don't care about analysis or exporting
+ # these sources outside of the tree.
+ sources = []
+
+ disable_analysis = true
+
+ deps = [
+ "//third_party/dart/pkg/analyzer",
+ "//third_party/dart-pkg/pub/path",
+ "//third_party/dart-pkg/pub/build_modules",
+ "//third_party/dart-pkg/pub/build",
+ "//third_party/dart-pkg/pub/pool",
+ ]
+}
diff --git a/build_vm_compilers/CHANGELOG.md b/build_vm_compilers/CHANGELOG.md
new file mode 100644
index 0000000..0db80db
--- /dev/null
+++ b/build_vm_compilers/CHANGELOG.md
@@ -0,0 +1,28 @@
+## 0.1.1+5
+
+- Increased the upper bound for `package:analyzer` to `<0.36.0`.
+
+## 0.1.1+4
+
+- Increased the upper bound for `package:analyzer` to `<0.35.0`.
+
+## 0.1.1+3
+
+- Increased the upper bound for `package:analyzer` to '<0.34.0'.
+
+## 0.1.1+2
+
+Support `package:build_modules` version `1.x.x`.
+
+## 0.1.1+1
+
+Support `package:build` version `1.x.x`.
+
+## 0.1.1
+
+Support the latest build_modules.
+
+## 0.1.0
+
+Initial release, adds the modular kernel compiler for the vm platform, and the
+entrypoint builder which concatenates all the modules into a single kernel file.
diff --git a/build_vm_compilers/LICENSE b/build_vm_compilers/LICENSE
new file mode 100644
index 0000000..c4dc9ba
--- /dev/null
+++ b/build_vm_compilers/LICENSE
@@ -0,0 +1,26 @@
+Copyright 2018, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of Google Inc. nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/build_vm_compilers/README.md b/build_vm_compilers/README.md
new file mode 100644
index 0000000..d036c1f
--- /dev/null
+++ b/build_vm_compilers/README.md
@@ -0,0 +1,72 @@
+# build_vm_compilers
+
+<p align="center">
+ Vm compilers for users of <a href="https://pub.dartlang.org/packages/build"><code>package:build</code></a>.
+ <br>
+ <a href="https://travis-ci.org/dart-lang/build">
+ <img src="https://travis-ci.org/dart-lang/build.svg?branch=master" alt="Build Status" />
+ </a>
+ <a href="https://github.com/dart-lang/build/labels/package%3A%20build_vm_compilers">
+ <img src="https://img.shields.io/github/issues-raw/dart-lang/build/package%3A%20build_vm_compilers.svg" alt="Issues related to build_vm_compilers" />
+ </a>
+ <a href="https://pub.dartlang.org/packages/build_vm_compilers">
+ <img src="https://img.shields.io/pub/v/build_vm_compilers.svg" alt="Pub Package Version" />
+ </a>
+ <a href="https://pub.dartlang.org/documentation/build_vm_compilers/latest">
+ <img src="https://img.shields.io/badge/dartdocs-latest-blue.svg" alt="Latest Dartdocs" />
+ </a>
+ <a href="https://gitter.im/dart-lang/build">
+ <img src="https://badges.gitter.im/dart-lang/build.svg" alt="Join the chat on Gitter" />
+ </a>
+</p>
+
+* [Installation](#installation)
+* [Usage](#usage)
+* [Configuration](#configuration)
+* [Manual Usage](#manual-usage)
+
+## Installation
+
+This package is intended to be used as a [development dependency][] for users
+of [`package:build`][] who want to run code in the Dart vm with precompiled
+kernel files. This allows you to share compilation of dependencies between
+multiple entrypoints, instead of doing a monolithic compile of each entrypoint
+like the Dart VM would normally do on each run.
+
+**Note**: If you want to use this package for running tests with
+`pub run build_runner test` you will also need a `build_test` dev dependency.
+
+## Usage
+
+This package creates a `.vm.app.dill` file corresponding to each `.dart` file
+that contains a `main` function.
+
+These files can be passed directly to the vm, instead of the dart script, and
+the vm will skip its initial parse and compile step.
+
+You can find the output either by using the `-o <dir>` option for build_runner,
+or by finding it in the generated cache directory, which is located at
+`.dart_tool/build/generated/<your-package>`.
+
+## Configuration
+
+There are no configuration options available at this time.
+
+## Custom Build Script Integration
+
+If you are using a custom build script, you will need to add the following
+builder applications to what you already have, sometime after the
+`build_modules` builder applications:
+
+```dart
+ apply('build_vm_compilers|entrypoint',
+ [vmKernelEntrypointBuilder], toRoot(),
+ hideOutput: true,
+ // These globs should match your entrypoints only.
+ defaultGenerateFor: const InputSet(
+ include: const ['bin/**', 'tool/**', 'test/**.vm_test.dart'])),
+]
+```
+
+[development dependency]: https://www.dartlang.org/tools/pub/dependencies#dev-dependencies
+[`package:build`]: https://pub.dartlang.org/packages/build
diff --git a/build_vm_compilers/build.yaml b/build_vm_compilers/build.yaml
new file mode 100644
index 0000000..bb089d0
--- /dev/null
+++ b/build_vm_compilers/build.yaml
@@ -0,0 +1,36 @@
+builders:
+ vm:
+ import: "package:build_vm_compilers/builders.dart"
+ builder_factories:
+ - vmKernelModuleBuilder
+ build_extensions:
+ .dart:
+ - .vm.dill
+ is_optional: True
+ auto_apply: all_packages
+ required_inputs:
+ - .dart
+ - .vm.module
+ applies_builders:
+ - build_modules|vm
+ entrypoint:
+ import: "package:build_vm_compilers/builders.dart"
+ builder_factories:
+ - vmKernelEntrypointBuilder
+ build_extensions:
+ .dart:
+ - .vm.app.dill
+ required_inputs:
+ - .dart
+ - .vm.dill
+ - .vm.module
+ build_to: cache
+ auto_apply: root_package
+ defaults:
+ generate_for:
+ include:
+ - bin/**
+ - tool/**
+ - test/**.dart.vm_test.dart
+ - example/**
+ - benchmark/**
diff --git a/build_vm_compilers/lib/build_vm_compilers.dart b/build_vm_compilers/lib/build_vm_compilers.dart
new file mode 100644
index 0000000..1d7368b
--- /dev/null
+++ b/build_vm_compilers/lib/build_vm_compilers.dart
@@ -0,0 +1,5 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'src/vm_entrypoint_builder.dart' show VmEntrypointBuilder;
diff --git a/build_vm_compilers/lib/builders.dart b/build_vm_compilers/lib/builders.dart
new file mode 100644
index 0000000..47ddd2d
--- /dev/null
+++ b/build_vm_compilers/lib/builders.dart
@@ -0,0 +1,21 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:build/build.dart';
+import 'package:build_modules/build_modules.dart';
+import 'package:path/path.dart' as p;
+
+import 'src/vm_entrypoint_builder.dart';
+
+const vmKernelModuleExtension = '.vm.dill';
+const vmKernelEntrypointExtension = '.vm.app.dill';
+
+Builder vmKernelModuleBuilder(_) => KernelBuilder(
+ summaryOnly: false,
+ sdkKernelPath: p.join('lib', '_internal', 'vm_platform_strong.dill'),
+ outputExtension: vmKernelModuleExtension,
+ platform: DartPlatform.vm,
+ );
+
+Builder vmKernelEntrypointBuilder(_) => VmEntrypointBuilder();
diff --git a/build_vm_compilers/lib/src/vm_entrypoint_builder.dart b/build_vm_compilers/lib/src/vm_entrypoint_builder.dart
new file mode 100644
index 0000000..2025997
--- /dev/null
+++ b/build_vm_compilers/lib/src/vm_entrypoint_builder.dart
@@ -0,0 +1,78 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:convert';
+
+// ignore: deprecated_member_use
+import 'package:analyzer/analyzer.dart';
+import 'package:build/build.dart';
+import 'package:build_modules/build_modules.dart';
+import 'package:pool/pool.dart';
+
+import '../builders.dart';
+
+/// Because we hold bytes in memory we don't want to compile to many app entry
+/// points at once.
+final _buildPool = Pool(16);
+
+/// A builder which combines several [vmKernelModuleExtension] modules into a
+/// single [vmKernelEntrypointExtension] file, which represents an entire
+/// application.
+class VmEntrypointBuilder implements Builder {
+ const VmEntrypointBuilder();
+
+ @override
+ final buildExtensions = const {
+ '.dart': [vmKernelEntrypointExtension],
+ };
+
+ @override
+ Future<Null> build(BuildStep buildStep) async {
+ await _buildPool.withResource(() async {
+ var dartEntrypointId = buildStep.inputId;
+ var isAppEntrypoint = await _isAppEntryPoint(dartEntrypointId, buildStep);
+ if (!isAppEntrypoint) return;
+
+ var moduleId =
+ buildStep.inputId.changeExtension(moduleExtension(DartPlatform.vm));
+ var module = Module.fromJson(
+ json.decode(await buildStep.readAsString(moduleId))
+ as Map<String, dynamic>);
+ var transitiveModules =
+ await module.computeTransitiveDependencies(buildStep);
+ var transitiveKernelModules = [
+ module.primarySource.changeExtension(vmKernelModuleExtension)
+ ].followedBy(transitiveModules.map(
+ (m) => m.primarySource.changeExtension(vmKernelModuleExtension)));
+ var appContents = <int>[];
+ for (var dependencyId in transitiveKernelModules) {
+ appContents.addAll(await buildStep.readAsBytes(dependencyId));
+ }
+ await buildStep.writeAsBytes(
+ buildStep.inputId.changeExtension(vmKernelEntrypointExtension),
+ appContents);
+ });
+ }
+}
+
+/// Returns whether or not [dartId] is an app entrypoint (basically, whether
+/// or not it has a `main` function).
+Future<bool> _isAppEntryPoint(AssetId dartId, AssetReader reader) async {
+ assert(dartId.extension == '.dart');
+ // Skip reporting errors here, dartdevc will report them later with nicer
+ // formatting.
+ var parsed = parseCompilationUnit(await reader.readAsString(dartId),
+ suppressErrors: true);
+ // Allow two or fewer arguments so that entrypoints intended for use with
+ // [spawnUri] get counted.
+ //
+ // TODO: This misses the case where a Dart file doesn't contain main(),
+ // but has a part that does, or it exports a `main` from another library.
+ return parsed.declarations.any((node) {
+ return node is FunctionDeclaration &&
+ node.name.name == 'main' &&
+ node.functionExpression.parameters.parameters.length <= 2;
+ });
+}
diff --git a/build_vm_compilers/mono_pkg.yaml b/build_vm_compilers/mono_pkg.yaml
new file mode 100644
index 0000000..86a29d0
--- /dev/null
+++ b/build_vm_compilers/mono_pkg.yaml
@@ -0,0 +1,10 @@
+dart:
+ - dev
+
+stages:
+ - analyze_and_format:
+ - group:
+ - dartfmt: sdk
+ - dartanalyzer: --fatal-infos --fatal-warnings .
+ - unit_test:
+ - test
diff --git a/build_vm_compilers/pubspec.yaml b/build_vm_compilers/pubspec.yaml
new file mode 100644
index 0000000..58112ae
--- /dev/null
+++ b/build_vm_compilers/pubspec.yaml
@@ -0,0 +1,22 @@
+name: build_vm_compilers
+version: 0.1.1+5
+description: Builder implementations wrapping Dart VM compilers.
+author: Dart Team <misc@dartlang.org>
+homepage: https://github.com/dart-lang/build/tree/master/build_vm_compilers
+
+environment:
+ sdk: ">=2.0.0 <3.0.0"
+
+dependencies:
+ analyzer: ">=0.30.0 <0.36.0"
+ build: '>=0.12.0 <2.0.0'
+ build_modules: '>=0.4.0 <2.0.0'
+ path: ^1.6.0
+ pool: ^1.3.0
+
+dev_dependencies:
+ build_runner: ^1.0.0
+ test: ^1.0.0
+ test_descriptor: ^1.1.0
+ _test_common:
+ path: ../_test_common
diff --git a/built_value/BUILD.gn b/built_value/BUILD.gn
index e1c2bce..1f5331f 100644
--- a/built_value/BUILD.gn
+++ b/built_value/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for built_value-6.3.0
+# This file is generated by importer.py for built_value-6.3.1
import("//build/dart/dart_library.gni")
diff --git a/built_value/CHANGELOG.md b/built_value/CHANGELOG.md
index 0b609ad..f10e241 100644
--- a/built_value/CHANGELOG.md
+++ b/built_value/CHANGELOG.md
@@ -1,5 +1,10 @@
# Changelog
+# 6.3.1
+
+- Fix `BuiltList` serialization when using `StandardJsonPlugin` with
+ unspecified type and when list length is 1.
+
# 6.3.0
- Allow custom builders to use setter/getter pairs instead of normal fields.
diff --git a/built_value/README.md b/built_value/README.md
index 38d8d25..951de35 100644
--- a/built_value/README.md
+++ b/built_value/README.md
@@ -26,6 +26,7 @@
## Tutorials
+ - [Custom Serializers](https://medium.com/@solid.goncalo/creating-custom-built-value-serializers-with-builtvalueserializer-46a52c75d4c5)
- [Flutter + built_value + Reddit Tutorial](https://steemit.com/utopian-io/@tensor/building-immutable-models-with-built-value-and-built-collection-in-dart-s-flutter-framework);
[video](https://www.youtube.com/watch?v=hNbOSSgpneI);
[source code](https://github.com/tensor-programming/built_flutter_tutorial)
diff --git a/built_value/lib/standard_json_plugin.dart b/built_value/lib/standard_json_plugin.dart
index 399b7a9..1901433 100644
--- a/built_value/lib/standard_json_plugin.dart
+++ b/built_value/lib/standard_json_plugin.dart
@@ -93,6 +93,11 @@
Map _toMapWithDiscriminator(List list) {
var type = list[0];
+ if (type == 'list') {
+ // Embed the list in the map.
+ return <String, Object>{discriminator: type, valueKey: list.sublist(1)};
+ }
+
// Length is at least two because we have one entry for type and one for
// the value.
if (list.length == 2) {
@@ -100,11 +105,6 @@
return <String, Object>{discriminator: type, valueKey: list[1]};
}
- if (type == 'list') {
- // Embed the list in the map.
- return <String, Object>{discriminator: type, valueKey: list.sublist(1)};
- }
-
// If a map has non-String keys then they need encoding to strings before
// it can be converted to JSON. Because we don't know the type, we also
// won't know the type on deserialization, and signal this by changing the
diff --git a/built_value/pubspec.yaml b/built_value/pubspec.yaml
index 844a5a3..13a963d 100644
--- a/built_value/pubspec.yaml
+++ b/built_value/pubspec.yaml
@@ -1,5 +1,5 @@
name: built_value
-version: 6.3.0
+version: 6.3.1
description: >
Value types with builders, Dart classes as enums, and serialization.
This library is the runtime dependency.
diff --git a/flutter_gallery_assets/BUILD.gn b/flutter_gallery_assets/BUILD.gn
index 2215363..8960a68 100644
--- a/flutter_gallery_assets/BUILD.gn
+++ b/flutter_gallery_assets/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for flutter_gallery_assets-0.1.6
+# This file is generated by importer.py for flutter_gallery_assets-0.1.8
import("//build/dart/dart_library.gni")
diff --git a/flutter_gallery_assets/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java b/flutter_gallery_assets/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
new file mode 100644
index 0000000..d007606
--- /dev/null
+++ b/flutter_gallery_assets/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
@@ -0,0 +1,23 @@
+package io.flutter.plugins;
+
+import io.flutter.plugin.common.PluginRegistry;
+
+/**
+ * Generated file. Do not edit.
+ */
+public final class GeneratedPluginRegistrant {
+ public static void registerWith(PluginRegistry registry) {
+ if (alreadyRegisteredWith(registry)) {
+ return;
+ }
+ }
+
+ private static boolean alreadyRegisteredWith(PluginRegistry registry) {
+ final String key = GeneratedPluginRegistrant.class.getCanonicalName();
+ if (registry.hasPlugin(key)) {
+ return true;
+ }
+ registry.registrarFor(key);
+ return false;
+ }
+}
diff --git a/flutter_gallery_assets/android/local.properties b/flutter_gallery_assets/android/local.properties
new file mode 100644
index 0000000..0a08f2d
--- /dev/null
+++ b/flutter_gallery_assets/android/local.properties
@@ -0,0 +1,2 @@
+sdk.dir=/Users/larche/Library/Android/sdk
+flutter.sdk=/Users/larche/flutter
\ No newline at end of file
diff --git a/flutter_gallery_assets/ios/Flutter/Generated.xcconfig b/flutter_gallery_assets/ios/Flutter/Generated.xcconfig
new file mode 100644
index 0000000..14f694e
--- /dev/null
+++ b/flutter_gallery_assets/ios/Flutter/Generated.xcconfig
@@ -0,0 +1,8 @@
+// This is a generated file; do not edit or check into version control.
+FLUTTER_ROOT=/Users/larche/flutter
+FLUTTER_APPLICATION_PATH=/Users/larche/flutter_gallery_assets
+FLUTTER_TARGET=lib/main.dart
+FLUTTER_BUILD_DIR=build
+SYMROOT=${SOURCE_ROOT}/../build/ios
+FLUTTER_FRAMEWORK_DIR=/Users/larche/flutter/bin/cache/artifacts/engine/ios
+FLUTTER_BUILD_NAME=0.1.8
diff --git a/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.h b/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.h
new file mode 100644
index 0000000..3b700eb
--- /dev/null
+++ b/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.h
@@ -0,0 +1,14 @@
+//
+// Generated file. Do not edit.
+//
+
+#ifndef GeneratedPluginRegistrant_h
+#define GeneratedPluginRegistrant_h
+
+#import <Flutter/Flutter.h>
+
+@interface GeneratedPluginRegistrant : NSObject
++ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry;
+@end
+
+#endif /* GeneratedPluginRegistrant_h */
diff --git a/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.m b/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.m
new file mode 100644
index 0000000..60dfa42
--- /dev/null
+++ b/flutter_gallery_assets/ios/Runner/GeneratedPluginRegistrant.m
@@ -0,0 +1,12 @@
+//
+// Generated file. Do not edit.
+//
+
+#import "GeneratedPluginRegistrant.h"
+
+@implementation GeneratedPluginRegistrant
+
++ (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry {
+}
+
+@end
diff --git a/flutter_gallery_assets/lib/customized/3.0x/ic_circle_arrow.png b/flutter_gallery_assets/lib/customized/3.0x/ic_circle_arrow.png
new file mode 100644
index 0000000..aeecf48
--- /dev/null
+++ b/flutter_gallery_assets/lib/customized/3.0x/ic_circle_arrow.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/customized/bg_hero.png b/flutter_gallery_assets/lib/customized/bg_hero.png
new file mode 100644
index 0000000..f0d3982
--- /dev/null
+++ b/flutter_gallery_assets/lib/customized/bg_hero.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/customized/bg_runner.png b/flutter_gallery_assets/lib/customized/bg_runner.png
new file mode 100644
index 0000000..70ef70c
--- /dev/null
+++ b/flutter_gallery_assets/lib/customized/bg_runner.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/customized/fg_hero.png b/flutter_gallery_assets/lib/customized/fg_hero.png
new file mode 100755
index 0000000..b3c5f21
--- /dev/null
+++ b/flutter_gallery_assets/lib/customized/fg_hero.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/customized/run_path.png b/flutter_gallery_assets/lib/customized/run_path.png
new file mode 100644
index 0000000..175d676
--- /dev/null
+++ b/flutter_gallery_assets/lib/customized/run_path.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Bold.ttf b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Bold.ttf
new file mode 100755
index 0000000..b43e97c
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Bold.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Light.ttf b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Light.ttf
new file mode 100755
index 0000000..2167ab4
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Light.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Medium.ttf b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Medium.ttf
new file mode 100755
index 0000000..41daf85
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Medium.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Regular.ttf b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Regular.ttf
new file mode 100755
index 0000000..487c31e
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/LibreFranklin-Regular.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/OFL.txt b/flutter_gallery_assets/lib/fonts/librefranklin/OFL.txt
new file mode 100755
index 0000000..9df4654
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/OFL.txt
@@ -0,0 +1,93 @@
+Copyright (c) 2015, Impallari Type (www.impallari.com)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/flutter_gallery_assets/lib/fonts/librefranklin/README.md b/flutter_gallery_assets/lib/fonts/librefranklin/README.md
new file mode 100644
index 0000000..61ebe89
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/librefranklin/README.md
@@ -0,0 +1,3 @@
+Flutter Gallery, Fortnightly Demo Assets
+
+The Libre Frankline font was downloaded from https://fonts.google.com/specimen/Libre+Franklin
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-BlackItalic.ttf b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-BlackItalic.ttf
new file mode 100755
index 0000000..04cc484
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-BlackItalic.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Italic.ttf b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Italic.ttf
new file mode 100755
index 0000000..f9f8fab
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Italic.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Light.ttf b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Light.ttf
new file mode 100755
index 0000000..3b17a2d
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Light.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Regular.ttf b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Regular.ttf
new file mode 100755
index 0000000..2ee9a69
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/Merriweather-Regular.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/OFL.txt b/flutter_gallery_assets/lib/fonts/merriweather/OFL.txt
new file mode 100755
index 0000000..ab1138c
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/OFL.txt
@@ -0,0 +1,93 @@
+Copyright 2016 The Merriweather Project Authors (https://github.com/EbenSorkin/Merriweather), with Reserved Font Name "Merriweather".
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/flutter_gallery_assets/lib/fonts/merriweather/README.md b/flutter_gallery_assets/lib/fonts/merriweather/README.md
new file mode 100644
index 0000000..783790f
--- /dev/null
+++ b/flutter_gallery_assets/lib/fonts/merriweather/README.md
@@ -0,0 +1,3 @@
+Flutter Gallery, Fortnightly Demo Assets
+
+The Merriweather font was downloaded from https://fonts.google.com/specimen/Merriweather
diff --git a/flutter_gallery_assets/lib/fonts/private/gallery_icons/GalleryIcons.ttf b/flutter_gallery_assets/lib/fonts/private/gallery_icons/GalleryIcons.ttf
index 53c5d2d..549ba8c 100644
--- a/flutter_gallery_assets/lib/fonts/private/gallery_icons/GalleryIcons.ttf
+++ b/flutter_gallery_assets/lib/fonts/private/gallery_icons/GalleryIcons.ttf
Binary files differ
diff --git a/flutter_gallery_assets/lib/food/fruits.png b/flutter_gallery_assets/lib/food/fruits.png
new file mode 100644
index 0000000..1a47940
--- /dev/null
+++ b/flutter_gallery_assets/lib/food/fruits.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/logos/fortnightly/1.5x/fortnightly_logo.png b/flutter_gallery_assets/lib/logos/fortnightly/1.5x/fortnightly_logo.png
new file mode 100644
index 0000000..e79ffb0
--- /dev/null
+++ b/flutter_gallery_assets/lib/logos/fortnightly/1.5x/fortnightly_logo.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/logos/fortnightly/2.0x/fortnightly_logo.png b/flutter_gallery_assets/lib/logos/fortnightly/2.0x/fortnightly_logo.png
new file mode 100644
index 0000000..4887dcf
--- /dev/null
+++ b/flutter_gallery_assets/lib/logos/fortnightly/2.0x/fortnightly_logo.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/logos/fortnightly/3.0x/fortnightly_logo.png b/flutter_gallery_assets/lib/logos/fortnightly/3.0x/fortnightly_logo.png
new file mode 100644
index 0000000..5c0785a
--- /dev/null
+++ b/flutter_gallery_assets/lib/logos/fortnightly/3.0x/fortnightly_logo.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/logos/fortnightly/fortnightly_logo.png b/flutter_gallery_assets/lib/logos/fortnightly/fortnightly_logo.png
new file mode 100644
index 0000000..634ba94
--- /dev/null
+++ b/flutter_gallery_assets/lib/logos/fortnightly/fortnightly_logo.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/ic_documentation.png b/flutter_gallery_assets/lib/welcome/ic_documentation.png
new file mode 100644
index 0000000..e5a3001
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/ic_documentation.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_documentation.png b/flutter_gallery_assets/lib/welcome/welcome_documentation.png
new file mode 100644
index 0000000..10a1a68
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_documentation.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_documentation_focus.png b/flutter_gallery_assets/lib/welcome/welcome_documentation_focus.png
new file mode 100644
index 0000000..785edd4
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_documentation_focus.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_explore_flutter.png b/flutter_gallery_assets/lib/welcome/welcome_explore_flutter.png
new file mode 100644
index 0000000..d2806bc
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_explore_flutter.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_flutter_logo.png b/flutter_gallery_assets/lib/welcome/welcome_flutter_logo.png
new file mode 100644
index 0000000..5f9c048
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_flutter_logo.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_hello.png b/flutter_gallery_assets/lib/welcome/welcome_hello.png
new file mode 100644
index 0000000..bc9ccc2
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_hello.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_playground.png b/flutter_gallery_assets/lib/welcome/welcome_playground.png
new file mode 100644
index 0000000..e84b774
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_playground.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_pop_1.png b/flutter_gallery_assets/lib/welcome/welcome_pop_1.png
new file mode 100644
index 0000000..5865c81
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_pop_1.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_pop_2.png b/flutter_gallery_assets/lib/welcome/welcome_pop_2.png
new file mode 100644
index 0000000..ec1d1b9
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_pop_2.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_pop_3.png b/flutter_gallery_assets/lib/welcome/welcome_pop_3.png
new file mode 100644
index 0000000..aefdab7
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_pop_3.png
Binary files differ
diff --git a/flutter_gallery_assets/lib/welcome/welcome_pop_4.png b/flutter_gallery_assets/lib/welcome/welcome_pop_4.png
new file mode 100644
index 0000000..2549715
--- /dev/null
+++ b/flutter_gallery_assets/lib/welcome/welcome_pop_4.png
Binary files differ
diff --git a/flutter_gallery_assets/pubspec.yaml b/flutter_gallery_assets/pubspec.yaml
index b71f622..722891d 100644
--- a/flutter_gallery_assets/pubspec.yaml
+++ b/flutter_gallery_assets/pubspec.yaml
@@ -1,9 +1,9 @@
name: flutter_gallery_assets
description: Images and fonts for the Flutter gallery demo
-version: 0.1.6
+version: 0.1.8
author: Flutter Team <flutter-dev@googlegroups.com>
homepage: http://flutter.io
environment:
sdk: '>=1.19.0 <3.0.0'
flutter: '>=0.1.0 <2.0.0'
-
+
diff --git a/package_resolver/.travis.yml b/package_resolver/.travis.yml
index 8f4447d..781f46d 100644
--- a/package_resolver/.travis.yml
+++ b/package_resolver/.travis.yml
@@ -2,16 +2,13 @@
dart:
- dev
+ - stable
+
dart_task:
- test: --platform vm
- test: --platform firefox
-
-matrix:
- include:
- - dart: dev
- dart_task: dartfmt
- - dart: dev
- dart_task: dartanalyzer
+ - dartfmt
+ - dartanalyzer: --fatal-infos --fatal-warnings .
# Only building master means that we don't run two builds for each pull request.
branches:
diff --git a/package_resolver/BUILD.gn b/package_resolver/BUILD.gn
index 7feec91..e4cb6f3 100644
--- a/package_resolver/BUILD.gn
+++ b/package_resolver/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for package_resolver-1.0.6
+# This file is generated by importer.py for package_resolver-1.0.10
import("//build/dart/dart_library.gni")
diff --git a/package_resolver/CHANGELOG.md b/package_resolver/CHANGELOG.md
index 2707d20..b65db46 100644
--- a/package_resolver/CHANGELOG.md
+++ b/package_resolver/CHANGELOG.md
@@ -1,10 +1,29 @@
+## 1.0.10
+
+* Use conditional imports to avoid `dart:isolate` imports on the web.
+* Bump minimum SDK to `2.1.0`.
+
+## 1.0.9
+
+* Identical to `1.0.6` - republishing with a higher version number to get around
+ issues with conditional `dart:isolate` imports on the version of
+ `build_modules` which is compatible with the `2.0.0` SDK.
+
+## 1.0.8
+
+* Fix issue on Dart `2.0.0`.
+
+## 1.0.7
+
+* Use conditional imports to avoid `dart:isolate` imports on the web.
+
## 1.0.6
* Support package:http version `0.12.x`.
## 1.0.5
-* Use conditional imports to avoid dart:io imports on the web.
+* Use conditional imports to avoid `dart:io` imports on the web.
## 1.0.4
diff --git a/package_resolver/lib/src/async_package_resolver.dart b/package_resolver/lib/src/async_package_resolver.dart
index 06c61e7..ef75081 100644
--- a/package_resolver/lib/src/async_package_resolver.dart
+++ b/package_resolver/lib/src/async_package_resolver.dart
@@ -2,8 +2,6 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
import 'package_resolver.dart';
import 'sync_package_resolver.dart';
diff --git a/package_resolver/lib/src/current_isolate_resolver.dart b/package_resolver/lib/src/current_isolate_resolver.dart
index 22d9fbf..1244b5c 100644
--- a/package_resolver/lib/src/current_isolate_resolver.dart
+++ b/package_resolver/lib/src/current_isolate_resolver.dart
@@ -2,7 +2,6 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
import 'dart:isolate';
import 'package:path/path.dart' as p;
@@ -14,7 +13,9 @@
import 'utils.dart';
/// The package resolution strategy used by the current isolate.
-class CurrentIsolateResolver implements PackageResolver {
+PackageResolver currentIsolateResolver() => _CurrentIsolateResolver();
+
+class _CurrentIsolateResolver implements PackageResolver {
Future<Map<String, Uri>> get packageConfigMap async {
if (_packageConfigMap != null) return _packageConfigMap;
@@ -28,6 +29,7 @@
Future<Uri> get packageConfigUri => Isolate.packageConfig;
+ // ignore: deprecated_member_use
Future<Uri> get packageRoot => Isolate.packageRoot;
Future<SyncPackageResolver> get asSync async {
diff --git a/package_resolver/lib/src/current_isolate_resolver_stub.dart b/package_resolver/lib/src/current_isolate_resolver_stub.dart
new file mode 100644
index 0000000..110701d
--- /dev/null
+++ b/package_resolver/lib/src/current_isolate_resolver_stub.dart
@@ -0,0 +1,8 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package_resolver.dart';
+
+PackageResolver currentIsolateResolver() =>
+ throw UnsupportedError('No current isolate support on this platform');
diff --git a/package_resolver/lib/src/package_resolver.dart b/package_resolver/lib/src/package_resolver.dart
index c72fc9d..d53d761 100644
--- a/package_resolver/lib/src/package_resolver.dart
+++ b/package_resolver/lib/src/package_resolver.dart
@@ -2,15 +2,17 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
import 'package:http/http.dart' as http;
-import 'current_isolate_resolver.dart';
import 'package_config_resolver.dart';
import 'package_root_resolver.dart';
import 'sync_package_resolver.dart';
+// ignore: uri_does_not_exist
+import 'current_isolate_resolver_stub.dart'
+ // ignore: uri_does_not_exist
+ if (dart.library.isolate) 'current_isolate_resolver.dart' as isolate;
+
/// A class that defines how to resolve `package:` URIs.
///
/// This includes the information necessary to resolve `package:` URIs using
@@ -81,7 +83,7 @@
/// Returns package resolution strategy describing how the current isolate
/// resolves `package:` URIs.
- static final PackageResolver current = new CurrentIsolateResolver();
+ static final PackageResolver current = isolate.currentIsolateResolver();
/// Returns a package resolution strategy that is unable to resolve any
/// `package:` URIs.
diff --git a/package_resolver/lib/src/sync_package_resolver.dart b/package_resolver/lib/src/sync_package_resolver.dart
index daaf46c..5cb4c99 100644
--- a/package_resolver/lib/src/sync_package_resolver.dart
+++ b/package_resolver/lib/src/sync_package_resolver.dart
@@ -2,8 +2,6 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
import 'package:http/http.dart' as http;
import 'no_package_resolver.dart';
diff --git a/package_resolver/lib/src/utils.dart b/package_resolver/lib/src/utils.dart
index 5e4b411..b588c54 100644
--- a/package_resolver/lib/src/utils.dart
+++ b/package_resolver/lib/src/utils.dart
@@ -2,19 +2,19 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-// TODO(nweiz): Avoid importing dart:io directly when cross-platform libraries
-// exist.
-import 'dart:async';
import 'dart:convert';
-import 'dart:isolate';
import 'package:http/http.dart' as http;
import 'package:package_config/packages_file.dart' as packages_file;
// ignore: uri_does_not_exist
-import 'utils_stub.dart'
+import 'utils_io_stub.dart'
// ignore: uri_does_not_exist
- if (dart.library.io) 'utils_io.dart' as conditional;
+ if (dart.library.io) 'utils_io.dart' as io;
+// ignore: uri_does_not_exist
+import 'utils_isolate_stub.dart'
+ // ignore: uri_does_not_exist
+ if (dart.library.isolate) 'utils_isolate.dart' as isolate;
/// Loads the configuration map from [uri].
///
@@ -28,11 +28,11 @@
if (resolved.scheme == 'http') {
text = await (client == null ? http.read(resolved) : client.read(resolved));
} else if (resolved.scheme == 'file') {
- text = await conditional.readFileAsString(resolved);
+ text = await io.readFileAsString(resolved);
} else if (resolved.scheme == 'data') {
text = resolved.data.contentAsString();
} else if (resolved.scheme == 'package') {
- return loadConfigMap(await Isolate.resolvePackageUri(uri), client: client);
+ return loadConfigMap(await isolate.resolvePackageUri(uri), client: client);
} else {
throw new UnsupportedError(
'PackageInfo.loadConfig doesn\'t support URI scheme "${uri.scheme}:".');
@@ -83,4 +83,4 @@
}
String packagePathForRoot(String package, Uri root) =>
- conditional.packagePathForRoot(package, root);
+ io.packagePathForRoot(package, root);
diff --git a/package_resolver/lib/src/utils_io.dart b/package_resolver/lib/src/utils_io.dart
index 8959f4d..df768e6 100644
--- a/package_resolver/lib/src/utils_io.dart
+++ b/package_resolver/lib/src/utils_io.dart
@@ -2,14 +2,13 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
import 'dart:io';
import 'package:path/path.dart' as p;
-Future<String> readFileAsString(Uri uri) async {
+Future<String> readFileAsString(Uri uri) {
var path = uri.toFilePath(windows: Platform.isWindows);
- return await new File(path).readAsString();
+ return new File(path).readAsString();
}
String packagePathForRoot(String package, Uri root) {
diff --git a/package_resolver/lib/src/utils_io_stub.dart b/package_resolver/lib/src/utils_io_stub.dart
new file mode 100644
index 0000000..7683079
--- /dev/null
+++ b/package_resolver/lib/src/utils_io_stub.dart
@@ -0,0 +1,10 @@
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+Future<String> readFileAsString(Uri uri) => throw UnsupportedError(
+ 'Reading files is only supported where dart:io is available.');
+
+String packagePathForRoot(String package, Uri root) => throw UnsupportedError(
+ 'Computing package paths from a root is only supported where dart:io is '
+ 'available.');
diff --git a/package_resolver/lib/src/utils_isolate.dart b/package_resolver/lib/src/utils_isolate.dart
new file mode 100644
index 0000000..a58c4db
--- /dev/null
+++ b/package_resolver/lib/src/utils_isolate.dart
@@ -0,0 +1,8 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:isolate';
+
+Future<Uri> resolvePackageUri(Uri packageUri) =>
+ Isolate.resolvePackageUri(packageUri);
diff --git a/package_resolver/lib/src/utils_isolate_stub.dart b/package_resolver/lib/src/utils_isolate_stub.dart
new file mode 100644
index 0000000..4639b97
--- /dev/null
+++ b/package_resolver/lib/src/utils_isolate_stub.dart
@@ -0,0 +1,6 @@
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+Future<Uri> resolvePackageUri(Uri packageUri) =>
+ throw UnsupportedError('May not use a package URI');
diff --git a/package_resolver/lib/src/utils_stub.dart b/package_resolver/lib/src/utils_stub.dart
index cefa097..7683079 100644
--- a/package_resolver/lib/src/utils_stub.dart
+++ b/package_resolver/lib/src/utils_stub.dart
@@ -2,8 +2,6 @@
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
Future<String> readFileAsString(Uri uri) => throw UnsupportedError(
'Reading files is only supported where dart:io is available.');
diff --git a/package_resolver/pubspec.yaml b/package_resolver/pubspec.yaml
index 35d42c6..344aac8 100644
--- a/package_resolver/pubspec.yaml
+++ b/package_resolver/pubspec.yaml
@@ -1,12 +1,12 @@
name: package_resolver
-version: 1.0.6
+version: 1.0.10
description: First-class package resolution strategy classes.
author: Dart Team <misc@dartlang.org>
homepage: https://github.com/dart-lang/package_resolver
environment:
- sdk: '>=2.0.0-dev.37.0 <3.0.0'
+ sdk: '>=2.1.0 <3.0.0'
dependencies:
collection: ^1.9.0
diff --git a/protobuf/BUILD.gn b/protobuf/BUILD.gn
index 2def32f..70afc57 100644
--- a/protobuf/BUILD.gn
+++ b/protobuf/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for protobuf-0.13.3
+# This file is generated by importer.py for protobuf-0.13.4
import("//build/dart/dart_library.gni")
diff --git a/protobuf/CHANGELOG.md b/protobuf/CHANGELOG.md
index 34752a5..ffba15a 100644
--- a/protobuf/CHANGELOG.md
+++ b/protobuf/CHANGELOG.md
@@ -1,10 +1,17 @@
+## 0.13.4
+
+* Add new method `pc` on BuilderInfo for adding repeated composite fields and remove redundant type check on items added
+ to a PbList.
+
+ Deprecated `BuilderInfo.pp` and `PbList.forFieldType`.
+
## 0.13.3
* Fix issue with parsing map field entries. The values for two different keys would sometimes be
merged.
* Deprecated `PBMap.add`.
-
+
## 0.13.2
* Include extension fields in GeneratedMessage.toString().
diff --git a/protobuf/lib/src/protobuf/builder_info.dart b/protobuf/lib/src/protobuf/builder_info.dart
index c63c2b1..d626c16 100644
--- a/protobuf/lib/src/protobuf/builder_info.dart
+++ b/protobuf/lib/src/protobuf/builder_info.dart
@@ -113,13 +113,24 @@
}
// Repeated message, group, or enum.
+ void pc<T>(int tagNumber, String name, int fieldType,
+ [CreateBuilderFunc subBuilder,
+ ValueOfFunc valueOf,
+ List<ProtobufEnum> enumValues]) {
+ assert(_isGroupOrMessage(fieldType) || _isEnum(fieldType));
+ addRepeated<T>(tagNumber, name, fieldType, _checkNotNull, subBuilder,
+ valueOf, enumValues);
+ }
+
+ @Deprecated('Use [pc] instead. The given [check] function is ignored.'
+ 'This function will be removed in the next major version.')
void pp<T>(int tagNumber, String name, int fieldType, CheckFunc<T> check,
[CreateBuilderFunc subBuilder,
ValueOfFunc valueOf,
List<ProtobufEnum> enumValues]) {
assert(_isGroupOrMessage(fieldType) || _isEnum(fieldType));
- addRepeated<T>(
- tagNumber, name, fieldType, check, subBuilder, valueOf, enumValues);
+ addRepeated<T>(tagNumber, name, fieldType, _checkNotNull, subBuilder,
+ valueOf, enumValues);
}
// oneof declarations.
diff --git a/protobuf/lib/src/protobuf/coded_buffer.dart b/protobuf/lib/src/protobuf/coded_buffer.dart
index b6f4020..e555220 100644
--- a/protobuf/lib/src/protobuf/coded_buffer.dart
+++ b/protobuf/lib/src/protobuf/coded_buffer.dart
@@ -30,27 +30,6 @@
_FieldSet fs, CodedBufferReader input, ExtensionRegistry registry) {
assert(registry != null);
- void readPackableToList(int wireType, FieldInfo fi, Function readToList) {
- List list = fs._ensureRepeatedField(fi);
-
- if (wireType == WIRETYPE_LENGTH_DELIMITED) {
- // Packed.
- input._withLimit(input.readInt32(), () {
- while (!input.isAtEnd()) {
- readToList(list);
- }
- });
- } else {
- // Not packed.
- readToList(list);
- }
- }
-
- void readPackable(int wireType, FieldInfo fi, Function readFunc) {
- void readToList(List list) => list.add(readFunc());
- readPackableToList(wireType, fi, readToList);
- }
-
while (true) {
int tag = input.readTag();
if (tag == 0) return;
@@ -149,7 +128,7 @@
fs._setFieldUnchecked(fi, subMessage);
break;
case PbFieldType._REPEATED_BOOL:
- readPackable(wireType, fi, input.readBool);
+ _readPackable(fs, input, wireType, fi, input.readBool);
break;
case PbFieldType._REPEATED_BYTES:
fs._ensureRepeatedField(fi).add(input.readBytes());
@@ -158,22 +137,13 @@
fs._ensureRepeatedField(fi).add(input.readString());
break;
case PbFieldType._REPEATED_FLOAT:
- readPackable(wireType, fi, input.readFloat);
+ _readPackable(fs, input, wireType, fi, input.readFloat);
break;
case PbFieldType._REPEATED_DOUBLE:
- readPackable(wireType, fi, input.readDouble);
+ _readPackable(fs, input, wireType, fi, input.readDouble);
break;
case PbFieldType._REPEATED_ENUM:
- readPackableToList(wireType, fi, (List list) {
- int rawValue = input.readEnum();
- var value = fs._meta._decodeEnum(tagNumber, registry, rawValue);
- if (value == null) {
- var unknown = fs._ensureUnknownFields();
- unknown.mergeVarintField(tagNumber, new Int64(rawValue));
- } else {
- list.add(value);
- }
- });
+ _readPackableToListEnum(fs, input, wireType, fi, tagNumber, registry);
break;
case PbFieldType._REPEATED_GROUP:
GeneratedMessage subMessage =
@@ -182,34 +152,34 @@
fs._ensureRepeatedField(fi).add(subMessage);
break;
case PbFieldType._REPEATED_INT32:
- readPackable(wireType, fi, input.readInt32);
+ _readPackable(fs, input, wireType, fi, input.readInt32);
break;
case PbFieldType._REPEATED_INT64:
- readPackable(wireType, fi, input.readInt64);
+ _readPackable(fs, input, wireType, fi, input.readInt64);
break;
case PbFieldType._REPEATED_SINT32:
- readPackable(wireType, fi, input.readSint32);
+ _readPackable(fs, input, wireType, fi, input.readSint32);
break;
case PbFieldType._REPEATED_SINT64:
- readPackable(wireType, fi, input.readSint64);
+ _readPackable(fs, input, wireType, fi, input.readSint64);
break;
case PbFieldType._REPEATED_UINT32:
- readPackable(wireType, fi, input.readUint32);
+ _readPackable(fs, input, wireType, fi, input.readUint32);
break;
case PbFieldType._REPEATED_UINT64:
- readPackable(wireType, fi, input.readUint64);
+ _readPackable(fs, input, wireType, fi, input.readUint64);
break;
case PbFieldType._REPEATED_FIXED32:
- readPackable(wireType, fi, input.readFixed32);
+ _readPackable(fs, input, wireType, fi, input.readFixed32);
break;
case PbFieldType._REPEATED_FIXED64:
- readPackable(wireType, fi, input.readFixed64);
+ _readPackable(fs, input, wireType, fi, input.readFixed64);
break;
case PbFieldType._REPEATED_SFIXED32:
- readPackable(wireType, fi, input.readSfixed32);
+ _readPackable(fs, input, wireType, fi, input.readSfixed32);
break;
case PbFieldType._REPEATED_SFIXED64:
- readPackable(wireType, fi, input.readSfixed64);
+ _readPackable(fs, input, wireType, fi, input.readSfixed64);
break;
case PbFieldType._REPEATED_MESSAGE:
GeneratedMessage subMessage =
@@ -225,3 +195,42 @@
}
}
}
+
+void _readPackable(_FieldSet fs, CodedBufferReader input, int wireType,
+ FieldInfo fi, Function readFunc) {
+ void readToList(List list) => list.add(readFunc());
+ _readPackableToList(fs, input, wireType, fi, readToList);
+}
+
+void _readPackableToListEnum(_FieldSet fs, CodedBufferReader input,
+ int wireType, FieldInfo fi, int tagNumber, ExtensionRegistry registry) {
+ void readToList(List list) {
+ int rawValue = input.readEnum();
+ var value = fs._meta._decodeEnum(tagNumber, registry, rawValue);
+ if (value == null) {
+ var unknown = fs._ensureUnknownFields();
+ unknown.mergeVarintField(tagNumber, new Int64(rawValue));
+ } else {
+ list.add(value);
+ }
+ }
+
+ _readPackableToList(fs, input, wireType, fi, readToList);
+}
+
+void _readPackableToList(_FieldSet fs, CodedBufferReader input, int wireType,
+ FieldInfo fi, Function readToList) {
+ List list = fs._ensureRepeatedField(fi);
+
+ if (wireType == WIRETYPE_LENGTH_DELIMITED) {
+ // Packed.
+ input._withLimit(input.readInt32(), () {
+ while (!input.isAtEnd()) {
+ readToList(list);
+ }
+ });
+ } else {
+ // Not packed.
+ readToList(list);
+ }
+}
diff --git a/protobuf/lib/src/protobuf/coded_buffer_reader.dart b/protobuf/lib/src/protobuf/coded_buffer_reader.dart
index bab15f6..79e02be 100644
--- a/protobuf/lib/src/protobuf/coded_buffer_reader.dart
+++ b/protobuf/lib/src/protobuf/coded_buffer_reader.dart
@@ -106,7 +106,7 @@
}
int readEnum() => readInt32();
- int readInt32() => _readRawVarint32();
+ int readInt32() => _readRawVarint32(true);
Int64 readInt64() => _readRawVarint64();
int readUint32() => _readRawVarint32(false);
Int64 readUint64() => _readRawVarint64();
@@ -121,7 +121,7 @@
return new Int64.fromBytes(view);
}
- bool readBool() => _readRawVarint32() != 0;
+ bool readBool() => _readRawVarint32(true) != 0;
List<int> readBytes() {
int length = readInt32();
_checkLimit(length);
@@ -164,19 +164,24 @@
return _buffer[_bufferPos - 1];
}
- int _readRawVarint32([bool signed = true]) {
+ int _readRawVarint32(bool signed) {
// Read up to 10 bytes.
- int bytes = _currentLimit - _bufferPos;
+ // We use a local [bufferPos] variable to avoid repeatedly loading/store the
+ // this._bufferpos field.
+ int bufferPos = _bufferPos;
+ int bytes = _currentLimit - bufferPos;
if (bytes > 10) bytes = 10;
int result = 0;
for (int i = 0; i < bytes; i++) {
- int byte = _buffer[_bufferPos++];
+ int byte = _buffer[bufferPos++];
result |= (byte & 0x7f) << (i * 7);
if ((byte & 0x80) == 0) {
result &= 0xffffffff;
+ _bufferPos = bufferPos;
return signed ? result - 2 * (0x80000000 & result) : result;
}
}
+ _bufferPos = bufferPos;
throw new InvalidProtocolBufferException.malformedVarint();
}
diff --git a/protobuf/lib/src/protobuf/field_error.dart b/protobuf/lib/src/protobuf/field_error.dart
index 7644653..0a84df7 100644
--- a/protobuf/lib/src/protobuf/field_error.dart
+++ b/protobuf/lib/src/protobuf/field_error.dart
@@ -73,29 +73,17 @@
/// Returns a function for validating items in a repeated field.
///
-/// For enum, group, and message fields, the check is only approximate,
-/// because the exact type isn't included in [fieldType].
+/// For most types this is a not-null check, except for floats, and signed and
+/// unsigned 32 bit ints where there also is a range check.
CheckFunc getCheckFunction(int fieldType) {
switch (fieldType & ~0x7) {
case PbFieldType._BOOL_BIT:
- return _checkBool;
case PbFieldType._BYTES_BIT:
- return _checkBytes;
case PbFieldType._STRING_BIT:
- return _checkString;
- case PbFieldType._FLOAT_BIT:
- return _checkFloat;
case PbFieldType._DOUBLE_BIT:
- return _checkDouble;
-
- case PbFieldType._INT32_BIT:
- case PbFieldType._SINT32_BIT:
- case PbFieldType._SFIXED32_BIT:
- return _checkSigned32;
-
- case PbFieldType._UINT32_BIT:
- case PbFieldType._FIXED32_BIT:
- return _checkUnsigned32;
+ case PbFieldType._ENUM_BIT:
+ case PbFieldType._GROUP_BIT:
+ case PbFieldType._MESSAGE_BIT:
case PbFieldType._INT64_BIT:
case PbFieldType._SINT64_BIT:
@@ -105,13 +93,19 @@
// We always use the full range of the same Dart type.
// It's up to the caller to treat the Int64 as signed or unsigned.
// See: https://github.com/dart-lang/protobuf/issues/44
- return _checkAnyInt64;
+ return _checkNotNull;
- case PbFieldType._ENUM_BIT:
- return _checkAnyEnum;
- case PbFieldType._GROUP_BIT:
- case PbFieldType._MESSAGE_BIT:
- return _checkAnyMessage;
+ case PbFieldType._FLOAT_BIT:
+ return _checkFloat;
+
+ case PbFieldType._INT32_BIT:
+ case PbFieldType._SINT32_BIT:
+ case PbFieldType._SFIXED32_BIT:
+ return _checkSigned32;
+
+ case PbFieldType._UINT32_BIT:
+ case PbFieldType._FIXED32_BIT:
+ return _checkUnsigned32;
}
throw new ArgumentError('check function not implemented: ${fieldType}');
}
@@ -124,60 +118,20 @@
}
}
-void _checkBool(Object val) {
- if (val is! bool) throw _createFieldTypeError(val, 'a bool');
-}
-
-void _checkBytes(Object val) {
- if (val is! List<int>) throw _createFieldTypeError(val, 'a List<int>');
-}
-
-void _checkString(Object val) {
- if (val is! String) throw _createFieldTypeError(val, 'a String');
-}
-
void _checkFloat(Object val) {
- _checkDouble(val);
if (!_isFloat32(val)) throw _createFieldRangeError(val, 'a float');
}
-void _checkDouble(Object val) {
- if (val is! double) throw _createFieldTypeError(val, 'a double');
-}
-
-void _checkInt(Object val) {
- if (val is! int) throw _createFieldTypeError(val, 'an int');
-}
-
void _checkSigned32(Object val) {
- _checkInt(val);
if (!_isSigned32(val)) throw _createFieldRangeError(val, 'a signed int32');
}
void _checkUnsigned32(Object val) {
- _checkInt(val);
if (!_isUnsigned32(val)) {
throw _createFieldRangeError(val, 'an unsigned int32');
}
}
-void _checkAnyInt64(Object val) {
- if (val is! Int64) throw _createFieldTypeError(val, 'an Int64');
-}
-
-void _checkAnyEnum(Object val) {
- if (val is! ProtobufEnum) throw _createFieldTypeError(val, 'a ProtobufEnum');
-}
-
-void _checkAnyMessage(Object val) {
- if (val is! GeneratedMessage) {
- throw _createFieldTypeError(val, 'a GeneratedMessage');
- }
-}
-
-ArgumentError _createFieldTypeError(val, String wantedType) =>
- new ArgumentError('Value ($val) is not ${wantedType}');
-
RangeError _createFieldRangeError(val, String wantedType) =>
new RangeError('Value ($val) is not ${wantedType}');
diff --git a/protobuf/lib/src/protobuf/field_type.dart b/protobuf/lib/src/protobuf/field_type.dart
index 4705895..b1f6485 100644
--- a/protobuf/lib/src/protobuf/field_type.dart
+++ b/protobuf/lib/src/protobuf/field_type.dart
@@ -67,7 +67,7 @@
// Closures commonly used by initializers.
static String _STRING_EMPTY() => '';
- static List<int> _BYTES_EMPTY() => new PbList<int>(check: _checkInt);
+ static List<int> _BYTES_EMPTY() => <int>[];
static bool _BOOL_FALSE() => false;
static int _INT_ZERO() => 0;
static double _DOUBLE_ZERO() => 0.0;
diff --git a/protobuf/lib/src/protobuf/pb_list.dart b/protobuf/lib/src/protobuf/pb_list.dart
index 7c2c1c3..e8a23e4 100644
--- a/protobuf/lib/src/protobuf/pb_list.dart
+++ b/protobuf/lib/src/protobuf/pb_list.dart
@@ -48,6 +48,8 @@
PbList.from(List from) : super._from(from);
+ @Deprecated('Instead use the default constructor with a check function.'
+ 'This constructor will be removed in the next major version.')
PbList.forFieldType(int fieldType)
: super._noList(check: getCheckFunction(fieldType));
@@ -57,7 +59,7 @@
/// Adds [value] at the end of the list, extending the length by one.
/// Throws an [UnsupportedError] if the list is not extendable.
void add(E value) {
- _validate(value);
+ check(value);
_wrappedList.add(value);
}
@@ -65,7 +67,7 @@
/// Extends the length of the list by the length of [collection].
/// Throws an [UnsupportedError] if the list is not extendable.
void addAll(Iterable<E> collection) {
- collection.forEach(_validate);
+ collection.forEach(check);
_wrappedList.addAll(collection);
}
@@ -85,7 +87,7 @@
/// Inserts a new element in the list.
/// The element must be valid (and not nullable) for the PbList type.
void insert(int index, E element) {
- _validate(element);
+ check(element);
_wrappedList.insert(index, element);
}
@@ -93,7 +95,7 @@
///
/// Elements in [iterable] must be valid and not nullable for the PbList type.
void insertAll(int index, Iterable<E> iterable) {
- iterable.forEach(_validate);
+ iterable.forEach(check);
_wrappedList.insertAll(index, iterable);
}
@@ -102,7 +104,7 @@
///
/// Elements in [iterable] must be valid and not nullable for the PbList type.
void setAll(int index, Iterable<E> iterable) {
- iterable.forEach(_validate);
+ iterable.forEach(check);
_wrappedList.setAll(index, iterable);
}
@@ -127,7 +129,7 @@
void setRange(int start, int end, Iterable<E> from, [int skipCount = 0]) {
// NOTE: In case `take()` returns less than `end - start` elements, the
// _wrappedList will fail with a `StateError`.
- from.skip(skipCount).take(end - start).forEach(_validate);
+ from.skip(skipCount).take(end - start).forEach(check);
_wrappedList.setRange(start, end, from, skipCount);
}
@@ -137,7 +139,7 @@
/// Sets the objects in the range [start] inclusive to [end] exclusive to the
/// given [fillValue].
void fillRange(int start, int end, [E fillValue]) {
- _validate(fillValue);
+ check(fillValue);
_wrappedList.fillRange(start, end, fillValue);
}
@@ -145,7 +147,7 @@
/// inserts the contents of [replacement] in its place.
void replaceRange(int start, int end, Iterable<E> replacement) {
final values = replacement.toList();
- replacement.forEach(_validate);
+ replacement.forEach(check);
_wrappedList.replaceRange(start, end, values);
}
}
@@ -308,7 +310,7 @@
/// Throws an [IndexOutOfRangeException] if [index] is out of bounds.
@override
void operator []=(int index, E value) {
- _validate(value);
+ check(value);
_wrappedList[index] = value;
}
@@ -323,12 +325,4 @@
}
_wrappedList.length = newLength;
}
-
- void _validate(E val) {
- check(val);
- // TODO: remove after migration to check functions is finished
- if (val is! E) {
- throw new ArgumentError('Value ($val) is not of the correct type');
- }
- }
}
diff --git a/protobuf/lib/src/protobuf/readonly_message.dart b/protobuf/lib/src/protobuf/readonly_message.dart
index d7e7428..c096f7c 100644
--- a/protobuf/lib/src/protobuf/readonly_message.dart
+++ b/protobuf/lib/src/protobuf/readonly_message.dart
@@ -49,7 +49,7 @@
void setExtension(Extension extension, var value) =>
_readonly("setExtension");
- void setField(int tagNumber, var value, [int fieldType = null]) =>
+ void setField(int tagNumber, var value, [int fieldType]) =>
_readonly("setField");
void _readonly(String methodName) {
diff --git a/protobuf/pubspec.yaml b/protobuf/pubspec.yaml
index c53dbc9..856e999 100644
--- a/protobuf/pubspec.yaml
+++ b/protobuf/pubspec.yaml
@@ -1,5 +1,5 @@
name: protobuf
-version: 0.13.3
+version: 0.13.4
author: Dart Team <misc@dartlang.org>
description: >
Runtime library for protocol buffers support.
diff --git a/source_span/BUILD.gn b/source_span/BUILD.gn
index 48b2cce..c298a1c 100644
--- a/source_span/BUILD.gn
+++ b/source_span/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for source_span-1.5.4
+# This file is generated by importer.py for source_span-1.5.5
import("//build/dart/dart_library.gni")
diff --git a/source_span/CHANGELOG.md b/source_span/CHANGELOG.md
index a07a0e6..ddb4ff0 100644
--- a/source_span/CHANGELOG.md
+++ b/source_span/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 1.5.5
+
+* Fix a bug where `FileSpan.highlight()` would crash for spans that covered a
+ trailing newline and a single additional empty line.
+
# 1.5.4
* `FileSpan.highlight()` now properly highlights point spans at the beginning of
diff --git a/source_span/lib/src/highlighter.dart b/source_span/lib/src/highlighter.dart
index 8a928b3..17a47bc 100644
--- a/source_span/lib/src/highlighter.dart
+++ b/source_span/lib/src/highlighter.dart
@@ -117,6 +117,10 @@
SourceSpanWithContext span) {
if (!span.context.endsWith("\n")) return span;
+ // If there's a full blank line on the end of [span.context], it's probably
+ // significant, so we shouldn't trim it.
+ if (span.text.endsWith("\n\n")) return span;
+
var context = span.context.substring(0, span.context.length - 1);
var text = span.text;
var start = span.start;
@@ -156,9 +160,13 @@
if (text.isEmpty) return 0;
// The "- 1" here avoids counting the newline itself.
- return text.codeUnitAt(text.length - 1) == $lf
- ? text.length - text.lastIndexOf("\n", text.length - 2) - 1
- : text.length - text.lastIndexOf("\n") - 1;
+ if (text.codeUnitAt(text.length - 1) == $lf) {
+ return text.length == 1
+ ? 0
+ : text.length - text.lastIndexOf("\n", text.length - 2) - 1;
+ } else {
+ return text.length - text.lastIndexOf("\n") - 1;
+ }
}
/// Returns whether [span]'s text runs all the way to the end of its context.
diff --git a/source_span/pubspec.yaml b/source_span/pubspec.yaml
index a470875..0cb9326 100644
--- a/source_span/pubspec.yaml
+++ b/source_span/pubspec.yaml
@@ -1,5 +1,5 @@
name: source_span
-version: 1.5.4
+version: 1.5.5
description: A library for identifying source spans and locations.
author: Dart Team <misc@dartlang.org>
