1# Copyright 2019 The Pigweed Authors
2#
3# Licensed under the Apache License, Version 2.0 (the "License"); you may not
4# use this file except in compliance with the License. You may obtain a copy of
5# the License at
6#
7#     https://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12# License for the specific language governing permissions and limitations under
13# the License.
14
15import("python_action.gni")
16
17# Creates an action that doesn't do anything that depends on a list of input
18# files. This allows modifications to these files to trigger targets depending
19# on this group to rebuild.
20#
21# This is typically used for targets that don't output any artifacts (e.g.
22# metadata-only targets) which list input files relevant to the build.
23template("pw_input_group") {
24  pw_python_action(target_name) {
25    ignore_vars = [
26      "args",
27      "script",
28      "stamp",
29    ]
30    forward_variables_from(invoker, "*", ignore_vars)
31    script = "$dir_pw_build/py/pw_build/nop.py"
32    stamp = true
33  }
34}
35