content/browser/tracing/BUILD.gn

# Copyright 2014 The Chromium 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("//tools/grit/grit_rule.gni")

# generate_about_tracing puts its files in this directory
tracing_gen_dir = "$root_gen_dir/content/browser/tracing"

# The script just writes filename with no dirs to the .grd, so we always need
# this file to be in the same directory as the inputs.
tracing_grd = "$tracing_gen_dir/tracing_resources.grd"

action("generate_tracing_grd") {
  visibility = ":resources"
  script = "generate_trace_viewer_grd.py"

  input_pages = [
    "$tracing_gen_dir/about_tracing.html",
    "$tracing_gen_dir/about_tracing.js",
  ]
  source_prereqs = input_pages
  outputs = [ tracing_grd ]

  args = rebase_path(input_pages, target_gen_dir) + [
    "--output", rebase_path(tracing_grd, root_build_dir),
  ]

  deps = [
    "//third_party/trace-viewer:generate_about_tracing",
  ]
}

# This can't use the grit template because the grd file is generated at build
# time, so the trick of using grit_info to get the real inputs/outputs at GYP
# time isn't possible.
action("resources") {
  script = "//tools/grit/grit.py"

  # Get the list of grit script sources.
  grit_inputs_build_rel =
    exec_script("//tools/grit/grit_info.py", [ "--inputs" ], "list lines")

  source_prereqs = rebase_path(grit_inputs_build_rel, ".", root_build_dir) + [
    grit_resource_id_file,
  ]
  outputs = [
    "$target_gen_dir/grit/tracing_resources.h",
    "$target_gen_dir/tracing_resources.pak",
  ]

  args = [
    "-i", rebase_path(tracing_grd, root_build_dir), "build",
    "-f", rebase_path(grit_resource_id_file, root_build_dir),
    "-o", rebase_path(target_gen_dir, root_build_dir),
    # resource_ids has an entry for our .grd file that looks like:
    # "<(SHARED_INTERMEDIATE_DIR)/content/browser/tracing/tracing_resources.grd"
    # and what we pass here should make that resolve to our .grd file.
    "-DSHARED_INTERMEDIATE_DIR=" +
          rebase_path(root_gen_dir, root_build_dir),
  ] + grit_defines

  deps = [
    ":generate_tracing_grd",
  ]
}