build/info/BUILD.gn

# 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.

import("//build/board.gni")
import("//build/dist/resource.gni")
import("//build/info/info.gni")
import("//build/package.gni")

if (current_toolchain == default_toolchain) {
  write_file(build_info_files.product, build_info_product)
  write_file(build_info_files.board, board_name)

  if (build_info_files.version != build_info_files.latest_commit_date) {
    write_file(build_info_files.version, build_info_version)
  }

  action("latest-commit-date") {
    # The script at tools/gen-latest-commit-date.sh script runs the following
    # command to compute the latest commit date:
    #
    #   GIT_CONFIG_NOSYSTEM=1 TZ=UTC git --git-dir="$INTEGRATION"/.git log --date=iso-strict-local --format=%cd -n 1 > "$OUTPUT"
    #
    # That command uses the following files, which means we need to depend on them
    # in order to ensure that this GN target will be considered dirty if the
    # output of that command would change.
    sources = [
      "//integration/.git/HEAD",
      "//integration/.git/index",
    ]
    outputs = [
      build_info_files.latest_commit_date,
      build_info_files.minimum_utc_stamp,
    ]
    script = "gen-latest-commit-date.sh"
    args = rebase_path([ "//integration/" ] + outputs, root_build_dir)
  }
} else {
  group("latest-commit-date") {
    public_deps = [ ":latest-commit-date($default_toolchain)" ]
  }
}

if (is_fuchsia) {
  package("build-info") {
    deps = [ ":latest-commit-date" ]
    resources = [
      {
        dest = "product"
        path = build_info_files.product
      },
      {
        dest = "board"
        path = build_info_files.board
      },
      {
        dest = "version"
        path = build_info_files.version
      },
      {
        dest = "snapshot"
        path = build_info_files.jiri_snapshot
      },
      {
        dest = "latest-commit-date"
        path = build_info_files.latest_commit_date
      },
      {
        dest = "minimum-utc-stamp"
        path = build_info_files.minimum_utc_stamp
      },
    ]
  }

  resource("bootfs") {
    sources = [ build_info_files.minimum_utc_stamp ]
    outputs = [ "config/build_info/minimum_utc_stamp" ]
    deps = [ ":latest-commit-date" ]
  }
}