build/cpp/verify_pragma_once.gni

# 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.

# Verifies that a set of header files do not contain a "#pragma once" directive.
#
# Parameters
#
#   headers
#     List of header files to verify.

template("verify_pragma_once") {
  assert(defined(invoker.headers), "Header list must be provided")

  stamp_file = "$target_gen_dir/$target_name.pragma.txt"

  action(target_name) {
    script = "//build/cpp/verify_pragma_once.py"

    inputs = invoker.headers

    outputs = [ stamp_file ]

    args = [
             "--stamp",
             rebase_path(stamp_file, root_build_dir),
             "--headers",
           ] + rebase_path(invoker.headers, root_build_dir)
  }
}