get_clang_version.py 1.6 KB

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  1. #!/usr/bin/env python3
  2. #
  3. # Copyright (C) 2021 The Android Open Source Project
  4. #
  5. # Licensed under the Apache License, Version 2.0 (the "License");
  6. # you may not use this file except in compliance with the License.
  7. # You may obtain a copy of the License at
  8. #
  9. # http://www.apache.org/licenses/LICENSE-2.0
  10. #
  11. # Unless required by applicable law or agreed to in writing, software
  12. # distributed under the License is distributed on an "AS IS" BASIS,
  13. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. # See the License for the specific language governing permissions and
  15. # limitations under the License.
  16. """A tool to report the current clang version used during build"""
  17. import os
  18. import re
  19. import sys
  20. ANDROID_BUILD_TOP = os.environ.get("ANDROID_BUILD_TOP", ".")
  21. LLVM_PREBUILTS_VERSION = os.environ.get("LLVM_PREBUILTS_VERSION")
  22. def get_clang_prebuilts_version(global_go):
  23. if LLVM_PREBUILTS_VERSION:
  24. return LLVM_PREBUILTS_VERSION
  25. # TODO(b/187231324): Get clang version from the json file once it is no longer
  26. # hard-coded in global.go
  27. if global_go is None:
  28. global_go = ANDROID_BUILD_TOP + '/build/soong/cc/config/global.go'
  29. with open(global_go) as infile:
  30. contents = infile.read()
  31. regex_rev = r'\tClangDefaultVersion\s+= "(?P<rev>clang-.*)"'
  32. match_rev = re.search(regex_rev, contents)
  33. if match_rev is None:
  34. raise RuntimeError('Parsing clang info failed')
  35. return match_rev.group('rev')
  36. def main():
  37. global_go = sys.argv[1] if len(sys.argv) > 1 else None
  38. print(get_clang_prebuilts_version(global_go));
  39. if __name__ == '__main__':
  40. main()