build/unification/images/migrated_manifest.gni

# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Generates a manifest for a given target recently migrated from the ZN build.
#
# The output of this action is a manifest file that replaces the one supplied
# by the ZN build for the given target. This makes it so that the target can be
# moved from one build to the other without having to worry about the impact on
# system assembly.
#
# Parameters
#
#   deps (required)
#     [list of labels] The targets to generate a manifest for.
#
#   testonly (optional)
#     Same as for any GN target.
template("migrated_manifest") {
  assert(is_fuchsia, "Migrated manifests only target Fuchsia")
  assert(defined(invoker.deps) && invoker.deps != [],
      "Need deps to generate a manifest for")

  generated_file(target_name) {
    forward_variables_from(invoker, [ "deps", "testonly" ])

    deps += [
      # Add sysroot-provided elements by default.
      "//build/config/fuchsia:sysroot_metadata",
    ]

    data_keys = [ "migrated_manifest_lines" ]
    walk_keys = [ "migrated_manifest_barrier" ]

    # Use the same naming scheme as for other unification manifest templates,
    # this makes them interoperable.
    outputs = [ "$target_out_dir/$target_name.unification.manifest" ]
  }
}