tools/typescript/webui_path_mappings.gni

# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//third_party/node/node.gni")

template("webui_path_mappings") {
  node(target_name) {
    script = "//tools/typescript/path_mappings.py"

    forward_variables_from(invoker,
                           [
                             "webui_context_type",
                             "ts_deps",
                             "testonly",
                             "visibility",
                           ])

    inputs = [
      "//tools/typescript/path_mappings.py",
      "//tools/typescript/path_utils.py",
    ]
    outputs = [ "${target_gen_dir}/path_mappings_${target_name}.json" ]

    args = [
      "--root_gen_dir",
      rebase_path(root_gen_dir, target_gen_dir),
      "--root_src_dir",
      rebase_path("//", target_gen_dir),
      "--gen_dir",
      rebase_path(target_gen_dir, root_build_dir),
      "--output_suffix",
      target_name,
    ]

    if (defined(ts_deps)) {
      args += [ "--raw_deps" ]
      foreach(_dep, ts_deps) {
        # Pass all dependency names to the script, because they are needed to
        # automatically infer path mappings. Normalize their form, because
        # |ts_deps| can hold relative paths.
        args +=
            [ get_label_info(_dep, "dir") + ":" + get_label_info(_dep, "name") ]
      }
    }

    # The |platform| flag is used to limit some logic to certain platforms, like
    # preventing special iOS exceptions being abused on other platforms.
    if (is_ios) {
      platform = "ios"
      args += [
        "--platform",
        platform,
      ]
    } else if (is_chromeos) {
      platform = "chromeos_ash"
      args += [
        "--platform",
        platform,
      ]
    }

    if (defined(webui_context_type)) {
      args += [
        "--webui_context_type",
        webui_context_type,
      ]
    }
  }
}