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91 lines
2.9 KiB
91 lines
2.9 KiB
#!/usr/bin/env python3
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# Copyright (C) 2019 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This writes headers for build flags. See the gen_buildflags target in
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# /gn/BUILD.gn for usage.
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#
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# The parameters are passed in a response file so we don't have to worry
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# about command line lengths. The name of the response file is passed on the
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# command line.
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#
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# The format of the response file is:
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# [--flags <list of one or more flag values>]
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import argparse
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import os
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import shlex
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import sys
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COPYRIGHT_HEADER = '''/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'''
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--rsp', help='Input response file containing the flags.')
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parser.add_argument('--out', help='Output path of the generated header file.')
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args = parser.parse_args()
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flags = []
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with open(args.rsp, 'r') as def_file:
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marker_seen = False
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for flag in shlex.split(def_file.read()):
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if not marker_seen:
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marker_seen = flag == '--flags'
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continue
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key, value = flag.split('=', 1)
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value = '1' if value == 'true' else '0' if value == 'false' else value
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flags.append((key, value))
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guard = '%s_' % args.out.upper()
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guard = guard.replace('/', '_').replace('\\', '_').replace('.', '_')
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lines = []
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lines.append('// Generated by %s' % os.path.basename(__file__))
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lines.append('')
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lines.append('// fix_include_guards: off')
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lines.append('#ifndef %s' % guard)
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lines.append('#define %s' % guard)
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lines.append('')
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lines.append('// clang-format off')
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for kv in flags:
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lines.append('#define PERFETTO_BUILDFLAG_DEFINE_%s() (%s)' % kv)
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lines.append('')
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lines.append('// clang-format on')
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lines.append('#endif // %s' % guard)
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lines.append('')
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with open(args.out, 'w') as out:
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out.write(COPYRIGHT_HEADER)
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out.write('\n'.join(lines))
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if __name__ == '__main__':
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sys.exit(main())
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