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#
# Copyright (C) 2018 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.
#
"""Generates a compile_commands.json file for the given ndk-build project.
The compilation commands for this file are read from the files passed as
arguments to this script.
"""
from __future__ import print_function
import argparse
import json
import os
def parse_args():
"""Parses and returns command line arguments."""
parser = argparse.ArgumentParser()
parser.add_argument(
'-o', '--output', type=os.path.realpath, help='Path to output file')
def maybe_list_file(arg):
if arg.startswith('@'):
return '@' + os.path.realpath(arg[1:])
return os.path.realpath(arg)
parser.add_argument(
'command_files',
metavar='FILE',
type=maybe_list_file,
nargs='+',
help=('Path to the compilation database for a single object. If the '
'argument begins with @ it will be treated as a list file '
'containing paths to the one or more JSON files.'))
return parser.parse_args()
def main():
"""Program entry point."""
args = parse_args()
all_commands = []
command_files = []
for command_file in args.command_files:
if command_file.startswith('@'):
with open(command_file[1:]) as list_file:
command_files.extend(list_file.read().split())
else:
command_files.append(command_file)
for command_file_path in command_files:
with open(command_file_path) as command_file:
all_commands.append(json.load(command_file))
with open(args.output, 'w') as out_file:
json.dump(
all_commands,
out_file,
sort_keys=True,
indent=4,
separators=(',', ': '))
if __name__ == '__main__':
main()
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