1# Copyright (C) 2020 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://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,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15# This action generates a perfetto_version.gen.h which exposes some
16# PERFETTO_VERSION_xxx() macros that contains the git revision and release
17# number from the CHANGELOG.
18# This template is used only in two places: in //base (for C++ code) and in
19# //ui. This teamplate exists only to keep the logic consistent and avoid that
20# base's and ui's logic diverge.
21
22import("perfetto.gni")
23
24template("gen_perfetto_version_header") {
25  action(target_name) {
26    script = "${perfetto_root_path}tools/write_version_header.py"
27    changelog = "${perfetto_root_path}CHANGELOG"
28    inputs = [ changelog ]
29    outputs = []
30    args = []
31    if (perfetto_build_standalone && !is_perfetto_build_generator &&
32        perfetto_enable_git_rev_version_header) {
33      inputs += [ "${perfetto_root_path}.git/HEAD" ]
34    }
35
36    if (defined(invoker.cpp_out)) {
37      args += [
38        "--changelog",
39        rebase_path(changelog, root_build_dir),
40        "--cpp_out",
41        rebase_path(invoker.cpp_out, root_build_dir),
42      ]
43      outputs += [ invoker.cpp_out ]
44    }
45    if (defined(invoker.ts_out)) {
46      args += [
47        "--ts_out",
48        rebase_path(invoker.ts_out, root_build_dir),
49      ]
50      outputs += [ invoker.ts_out ]
51    }
52    if (!perfetto_enable_git_rev_version_header) {
53      args += [ "--no_git" ]
54    }
55  }
56}
57