| #!/usr/bin/env dart |
| // 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. |
| |
| /// A main program that imitates the action of the transformer, adding |
| /// name and args parameters to Intl.message calls automatically. |
| /// |
| /// This is mainly intended to test the transformer logic outside of barback. |
| /// It takes as input a single source Dart file and rewrites any |
| /// Intl.message or related calls to automatically include the name and args |
| /// parameters and writes the result to stdout. |
| /// |
| import 'dart:io'; |
| |
| import 'package:args/args.dart'; |
| |
| import 'package:intl_translation/src/message_rewriter.dart'; |
| import 'package:dart_style/dart_style.dart'; |
| |
| String outputFileOption = 'transformed_output.dart'; |
| |
| bool useStringSubstitution = true; |
| bool replace = false; |
| |
| main(List<String> args) { |
| var parser = new ArgParser(); |
| parser.addOption('output', |
| defaultsTo: 'transformed_output.dart', |
| callback: (x) => outputFileOption = x, |
| help: 'Specify the output file.'); |
| parser.addFlag('replace', |
| defaultsTo: false, |
| callback: (x) => replace = x, |
| help: 'Overwrite the input file; ignore --output option.'); |
| parser.addFlag('useStringSubstitution', |
| defaultsTo: true, |
| callback: (x) => useStringSubstitution = x, |
| help: 'If true, in rewriting, try to leave the text of the message' |
| ' as close to the original as possible. This is slightly less reliable,' |
| ' because it relies on string matching, but better for updating' |
| ' source code to move away from the transformer. If false,' |
| ' behave like the transformer, regenerating the message code' |
| ' from our internal representation. This is more reliable, but' |
| ' produces less readable code.'); |
| print(args); |
| var rest = parser.parse(args).rest; |
| if (rest.length == 0) { |
| print('Accepts Dart file paths and adds "name" and "args" parameters ' |
| ' to Intl.message calls.'); |
| print('Primarily useful for exercising the transformer logic or ' |
| 'for rewriting programs to not require the transformer.'); |
| print('Usage: rewrite_intl_messages [options] [file.dart]...'); |
| print(parser.usage); |
| exit(0); |
| } |
| |
| var formatter = new DartFormatter(); |
| for (var inputFile in rest) { |
| var outputFile = replace ? inputFile : outputFileOption; |
| var file = new File(inputFile); |
| var content = file.readAsStringSync(); |
| var newSource = rewriteMessages(content, '$file', |
| useStringSubstitution: useStringSubstitution); |
| if (content == newSource) { |
| print('No changes to $outputFile'); |
| } else { |
| print('Writing new source to $outputFile'); |
| var out = new File(outputFile); |
| out.writeAsStringSync(formatter.format(newSource)); |
| } |
| } |
| } |