preprocess_if_expr.gni

# Copyright 2020 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("//build/config/python.gni")
import("//tools/grit/grit_defines.gni")

template("preprocess_if_expr") {
  # TODO(crbug.com/1112471): Get this to run cleanly under Python 3.
  python2_action(target_name) {
    script = "//tools/grit/preprocess_if_expr.py"

    if (defined(invoker.deps)) {
      deps = invoker.deps
    }

    inputs = []
    outputs = []
    foreach(in_file, invoker.in_files) {
      inputs += [ invoker.in_folder + "/" + in_file ]
      outputs += [ invoker.out_folder + "/" + in_file ]
    }

    args = [
             "--in-folder",
             rebase_path(invoker.in_folder, root_build_dir),
             "--out-folder",
             rebase_path(invoker.out_folder, root_build_dir),
             "--in-files",
           ] + invoker.in_files + grit_defines

    if (defined(invoker.defines)) {
      foreach(define, invoker.defines) {
        args += [
          "-D",
          define,
        ]
      }
    }

    if (defined(invoker.out_manifest)) {
      args += [
        "--out-manifest",
        rebase_path(invoker.out_manifest, root_build_dir),
      ]
      outputs += [ invoker.out_manifest ]
    }
  }
}