104 lines
3.5 KiB
Python
Executable File
104 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (C) 2022 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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import argparse
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from dataclasses import dataclass
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import os
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import re
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import sys
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from typing import Dict
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from typing import List
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from typing import Set
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# Allow importing of root-relative modules.
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ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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sys.path.append(os.path.join(ROOT_DIR))
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#pylint: disable=wrong-import-position
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from python.generators.trace_processor_table.serialize import serialize_header
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from python.generators.trace_processor_table.util import find_table_deps
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from python.generators.trace_processor_table.util import ParsedTable
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from python.generators.trace_processor_table.util import parse_tables_from_modules
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#pylint: enable=wrong-import-position
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# Suffix which replaces the .py extension for all input modules.
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OUT_HEADER_SUFFIX = '_py.h'
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@dataclass
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class Header:
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"""Represents a Python module which will be converted to a header."""
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tables: List[ParsedTable]
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def main():
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"""Main function."""
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parser = argparse.ArgumentParser()
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parser.add_argument('--inputs', required=True, nargs='*')
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parser.add_argument('--gen-dir', required=True)
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parser.add_argument('--relative-input-dir')
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parser.add_argument('--import-prefix', default='')
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args = parser.parse_args()
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def get_relin_path(in_path: str):
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if not args.relative_input_dir:
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return in_path
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return os.path.relpath(in_path, args.relative_input_dir)
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def get_relout_path(in_path: str):
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return os.path.splitext(in_path)[0] + OUT_HEADER_SUFFIX
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def get_out_path(in_path: str):
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return os.path.join(args.gen_dir, get_relout_path(in_path))
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def get_header_path(in_path: str):
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return os.path.join(args.import_prefix, get_relout_path(in_path))
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modules = [
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os.path.splitext(get_relin_path(i).replace(os.sep, '.'))[0]
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for i in args.inputs
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]
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headers: Dict[str, Header] = {}
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for table in parse_tables_from_modules(modules):
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input_path = os.path.relpath(table.table.python_module, ROOT_DIR)
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header = headers.get(input_path, Header([]))
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header.tables.append(table)
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headers[input_path] = header
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for in_path, header in headers.items():
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out_path = get_out_path(in_path)
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relout_path = get_relout_path(in_path)
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# Find all headers depended on by this table. These will be #include-ed when
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# generating the header file below so ensure we remove ourself.
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header_relout_deps: Set[str] = set()
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for table in header.tables:
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header_relout_deps = header_relout_deps.union([
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get_header_path(os.path.relpath(c.python_module, ROOT_DIR))
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for c in find_table_deps(table.table)
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])
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header_relout_deps.discard(relout_path)
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with open(out_path, 'w', encoding='utf8') as out:
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ifdef_guard = re.sub(r'[^a-zA-Z0-9_-]', '_', relout_path).upper() + '_'
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out.write(
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serialize_header(ifdef_guard, header.tables,
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sorted(header_relout_deps)))
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out.write('\n')
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if __name__ == '__main__':
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sys.exit(main())
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