diff --git a/Android.bp b/Android.bp index 45e661e78..d6260b400 100644 --- a/Android.bp +++ b/Android.bp @@ -116,3 +116,13 @@ cc_genrule { dex_bootjars { name: "dex_bootjars", } + +// Pseudo-test that's run on checkbuilds to ensure that get_clang_version can +// parse cc/config/global.go. +genrule { + name: "get_clang_version_test", + cmd: "$(location get_clang_version) > $(out)", + tools: ["get_clang_version"], + srcs: ["cc/config/global.go"], + out: ["clang-prebuilts-version.txt"], +} diff --git a/scripts/Android.bp b/scripts/Android.bp index 1c02bd0b8..635be10b3 100644 --- a/scripts/Android.bp +++ b/scripts/Android.bp @@ -265,3 +265,19 @@ python_binary_host { "linker_config_proto", ], } + +python_binary_host { + name: "get_clang_version", + main: "get_clang_version.py", + srcs: [ + "get_clang_version.py", + ], + version: { + py2: { + enabled: false, + }, + py3: { + enabled: true, + }, + }, +} diff --git a/scripts/get_clang_version.py b/scripts/get_clang_version.py new file mode 100755 index 000000000..622fca15c --- /dev/null +++ b/scripts/get_clang_version.py @@ -0,0 +1,46 @@ +#!/usr/bin/env python +# +# Copyright (C) 2021 The Android Open Source Project +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""A tool to report the current clang version used during build""" + +import os +import re +import sys + + +ANDROID_BUILD_TOP = os.environ.get("ANDROID_BUILD_TOP", ".") + +def get_clang_prebuilts_version(global_go): + # TODO(b/187231324): Get clang version from the json file once it is no longer + # hard-coded in global.go + if global_go is None: + global_go = ANDROID_BUILD_TOP + '/build/soong/cc/config/global.go' + with open(global_go) as infile: + contents = infile.read() + + regex_rev = r'\tClangDefaultVersion\s+= "clang-(?Pr\d+[a-z]?\d?)"' + match_rev = re.search(regex_rev, contents) + if match_rev is None: + raise RuntimeError('Parsing clang info failed') + return match_rev.group('rev') + + +def main(): + global_go = sys.argv[1] if len(sys.argv) > 1 else None + print(get_clang_prebuilts_version(global_go)); + + +if __name__ == '__main__': + main() diff --git a/scripts/get_clang_version_test.py b/scripts/get_clang_version_test.py new file mode 100644 index 000000000..e57df6c18 --- /dev/null +++ b/scripts/get_clang_version_test.py @@ -0,0 +1,32 @@ +#!/usr/bin/env python +# +# Copyright (C) 2021 The Android Open Source Project +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +"""Unit tests for get_clang_version.py.""" + +import unittest + +import get_clang_version + +class GetClangVersionTest(unittest.TestCase): + """Unit tests for get_clang_version.""" + + def test_get_clang_version(self): + """Test parsing of clang prebuilts version.""" + self.assertIsNotNone(get_clang_version.get_clang_prebuilts_version()) + + +if __name__ == '__main__': + unittest.main(verbosity=2)