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101 lines
2.9 KiB
101 lines
2.9 KiB
#!/usr/bin/env python3
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# Copyright (C) 2020 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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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import os
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import sys
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import argparse
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import tempfile
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import subprocess
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import textwrap
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def write_cpp_header(gendir, target, descriptor_bytes):
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_, target_name = os.path.split(target)
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proto_name = target_name[:-len('.descriptor.h')].title().replace("_", "")
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try:
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ord(descriptor_bytes[0])
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ordinal = ord
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except TypeError:
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ordinal = lambda x: x
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binary = '{' + ', '.join(
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'{0:#04x}'.format(ordinal(c)) for c in descriptor_bytes) + '}'
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binary = textwrap.fill(
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binary, width=80, initial_indent=' ', subsequent_indent=' ')
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relative_target = os.path.relpath(target, gendir)
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include_guard = relative_target.replace('\\', '_').replace('/', '_').replace(
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'.', '_').upper() + '_'
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with open(target, 'wb') as f:
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f.write("""/*
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* Copyright (C) 2020 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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#ifndef {include_guard}
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#define {include_guard}
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#include <stddef.h>
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#include <stdint.h>
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#include <array>
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namespace perfetto {{
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constexpr std::array<uint8_t, {size}> k{proto_name}Descriptor{{
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{binary}}};
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}} // namespace perfetto
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#endif // {include_guard}
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""".format(
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proto_name=proto_name,
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size=len(descriptor_bytes),
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binary=binary,
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include_guard=include_guard,
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).encode())
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--cpp_out', required=True)
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parser.add_argument('--gen_dir', default='')
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parser.add_argument('descriptor')
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args = parser.parse_args()
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with open(args.descriptor, 'rb') as fdescriptor:
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s = fdescriptor.read()
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write_cpp_header(args.gen_dir, args.cpp_out, s)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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