build/components/fuchsia_package_archive.gni

# Copyright 2021 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.

import("//build/components/fuchsia_package.gni")
import("//build/images/args.gni")
import("//src/sys/pkg/bin/package-tool/package-tool.gni")

# Builds a package archive from a fuchsia_package() target.
#
# This target only generates an archive for $target_toolchain because the
# fuchsia_package() it depends on is also only built for $target_toolchain. For
# other toolchains, the $target_toolchain archive is simply copied into the
# output directory as a placeholder so that dependent targets can consume it.
#
# Parameters
#
#   package (required)
#     A fuchsia_package() target defined earlier in the same file.
#     Type: label
#
#   testonly
#   visibility
template("fuchsia_package_archive") {
  assert(defined(invoker.package), "package is required")

  if (current_toolchain == target_toolchain) {
    package_tool_archive_create(target_name) {
      forward_variables_from(invoker, "*")
    }
  } else {
    # Hack. See this target's documentation.
    copy(target_name) {
      forward_variables_from(invoker,
                             [
                               "testonly",
                               "visibility",
                             ])
      sources = [ "$target_out_dir/$target_name.far" ]
      outputs = [ "$target_out_dir/$target_name.far" ]
      deps = [ ":${target_name}($target_toolchain)" ]
    }

    # Suppress unused variable warnings.
    not_needed(invoker, "*")
  }
}