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 18import os 19import re 20import sys 21 22 23ANDROID_BUILD_TOP = os.environ.get("ANDROID_BUILD_TOP", ".") 24LLVM_PREBUILTS_VERSION = os.environ.get("LLVM_PREBUILTS_VERSION") 25 26def get_clang_prebuilts_version(global_go): 27 if LLVM_PREBUILTS_VERSION: 28 return LLVM_PREBUILTS_VERSION 29 30 # TODO(b/187231324): Get clang version from the json file once it is no longer 31 # hard-coded in global.go 32 if global_go is None: 33 global_go = ANDROID_BUILD_TOP + '/build/soong/cc/config/global.go' 34 with open(global_go) as infile: 35 contents = infile.read() 36 37 regex_rev = r'\tClangDefaultVersion\s+= "(?P<rev>clang-.*)"' 38 match_rev = re.search(regex_rev, contents) 39 if match_rev is None: 40 raise RuntimeError('Parsing clang info failed') 41 return match_rev.group('rev') 42 43 44def main(): 45 global_go = sys.argv[1] if len(sys.argv) > 1 else None 46 print(get_clang_prebuilts_version(global_go)); 47 48 49if __name__ == '__main__': 50 main() 51