forked from OSchip/llvm-project
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
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#!/usr/bin/env python3
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# Converts clang-scan-deps output into response files.
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# * For modules, arguments in the resulting response file are enough to build a PCM.
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# * For translation units, the response file needs to be added to the original Clang invocation from compilation
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# database.
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#
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# Usage:
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#
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# clang-scan-deps -compilation-database compile_commands.json ... > deps.json
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# module-deps-to-rsp.py deps.json --module-name=ModuleName > module_name.cc1.rsp
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# module-deps-to-rsp.py deps.json --tu-index=0 > tu.rsp
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# clang @module_name.cc1.rsp
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# clang ... @tu.rsp
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import argparse
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import json
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import sys
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class ModuleNotFoundError(Exception):
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def __init__(self, module_name):
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self.module_name = module_name
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class FullDeps:
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def __init__(self):
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self.modules = {}
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self.translation_units = []
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def findModule(module_name, full_deps):
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for m in full_deps.modules.values():
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if m['name'] == module_name:
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return m
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raise ModuleNotFoundError(module_name)
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def parseFullDeps(json):
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ret = FullDeps()
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for m in json['modules']:
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ret.modules[m['name'] + '-' + m['context-hash']] = m
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ret.translation_units = json['translation-units']
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return ret
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def quote(str):
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return '"' + str.replace("\\", "\\\\") + '"'
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("full_deps_file", help="Path to the full dependencies json file",
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type=str)
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action = parser.add_mutually_exclusive_group(required=True)
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action.add_argument("--module-name", help="The name of the module to get arguments for",
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type=str)
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action.add_argument("--tu-index", help="The index of the translation unit to get arguments for",
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type=int)
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args = parser.parse_args()
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full_deps = parseFullDeps(json.load(open(args.full_deps_file, 'r')))
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try:
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cmd = []
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if args.module_name:
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cmd = findModule(args.module_name, full_deps)['command-line']
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elif args.tu_index != None:
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cmd = full_deps.translation_units[args.tu_index]['command-line']
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print(" ".join(map(quote, cmd)))
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except:
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print("Unexpected error:", sys.exc_info()[0])
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raise
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if __name__ == '__main__':
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main()
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