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#!/usr/bin/env python3
# Copyright (C) 2022 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
from dataclasses import dataclass
import os
import re
import sys
from typing import Dict
from typing import List
from typing import Set
# Allow importing of root-relative modules.
ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(os.path.join(ROOT_DIR))
#pylint: disable=wrong-import-position
from python.generators.trace_processor_table.serialize import serialize_header
from python.generators.trace_processor_table.util import find_table_deps
from python.generators.trace_processor_table.util import ParsedTable
from python.generators.trace_processor_table.util import parse_tables_from_modules
#pylint: enable=wrong-import-position
# Suffix which replaces the .py extension for all input modules.
OUT_HEADER_SUFFIX = '_py.h'
@dataclass
class Header:
"""Represents a Python module which will be converted to a header."""
tables: List[ParsedTable]
def main():
"""Main function."""
parser = argparse.ArgumentParser()
parser.add_argument('--inputs', required=True, nargs='*')
parser.add_argument('--gen-dir', required=True)
parser.add_argument('--relative-input-dir')
parser.add_argument('--import-prefix', default='')
args = parser.parse_args()
def get_relin_path(in_path: str):
if not args.relative_input_dir:
return in_path
return os.path.relpath(in_path, args.relative_input_dir)
def get_relout_path(in_path: str):
return os.path.splitext(in_path)[0] + OUT_HEADER_SUFFIX
def get_out_path(in_path: str):
return os.path.join(args.gen_dir, get_relout_path(in_path))
def get_header_path(in_path: str):
return os.path.join(args.import_prefix, get_relout_path(in_path))
def get_relin_path_from_module_path(module_path: str):
return module_path[module_path.rfind('/src') + 1:]
modules = [
os.path.splitext(get_relin_path(i).replace(os.sep, '.'))[0]
for i in args.inputs
]
headers: Dict[str, Header] = {}
for table in parse_tables_from_modules(modules):
input_path = get_relin_path_from_module_path(table.table.python_module)
header = headers.get(input_path, Header([]))
header.tables.append(table)
headers[input_path] = header
for in_path, header in headers.items():
out_path = get_out_path(in_path)
relout_path = get_relout_path(in_path)
# Find all headers depended on by this table. These will be #include-ed when
# generating the header file below so ensure we remove ourself.
header_relout_deps: Set[str] = set()
for table in header.tables:
header_relout_deps = header_relout_deps.union([
get_header_path(get_relin_path_from_module_path(c.python_module))
for c in find_table_deps(table.table)
])
header_relout_deps.discard(relout_path)
with open(out_path, 'w', encoding='utf8') as out:
ifdef_guard = re.sub(r'[^a-zA-Z0-9_-]', '_', relout_path).upper() + '_'
out.write(
serialize_header(ifdef_guard, header.tables,
sorted(header_relout_deps)))
out.write('\n')
if __name__ == '__main__':
sys.exit(main())
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