82 lines
2.4 KiB
Python
82 lines
2.4 KiB
Python
#
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# Copyright (C) 2018 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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"""Generates a compile_commands.json file for the given ndk-build project.
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The compilation commands for this file are read from the files passed as
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arguments to this script.
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"""
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from __future__ import print_function
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import argparse
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import json
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import os
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from pathlib import Path
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def parse_args() -> argparse.Namespace:
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"""Parses and returns command line arguments."""
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"-o", "--output", type=os.path.realpath, help="Path to output file"
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) # type: ignore
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def maybe_list_file(arg: str) -> str:
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if arg.startswith("@"):
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return "@" + os.path.realpath(arg[1:])
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return os.path.realpath(arg)
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parser.add_argument(
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"command_files",
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metavar="FILE",
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type=maybe_list_file,
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nargs="+",
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help=(
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"Path to the compilation database for a single object. If the "
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"argument begins with @ it will be treated as a list file "
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"containing paths to the one or more JSON files."
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),
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)
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return parser.parse_args()
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def main() -> None:
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"""Program entry point."""
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args = parse_args()
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all_commands = []
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command_files = []
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for command_file in args.command_files:
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if command_file.startswith("@"):
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list_file = Path(command_file[1:])
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command_files.extend(list_file.read_text(encoding="utf-8").split())
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else:
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command_files.append(command_file)
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for command_file_path in command_files:
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with open(command_file_path, encoding="utf-8") as command_file:
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all_commands.append(json.load(command_file))
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with open(args.output, "w", encoding="utf-8") as out_file:
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json.dump(
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all_commands, out_file, sort_keys=True, indent=4, separators=(",", ": ")
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)
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if __name__ == "__main__":
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main()
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