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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2021, Google Inc.
#
# Author: Paul Elder <paul.elder@ideasonboard.com>
#
# extract-docs.py - Extract doxygen documentation from mojom files
import argparse
import re
import sys
regex_block_start = re.compile('^\/\*\*$')
regex_block_end = re.compile('^ \*\/$')
regex_spdx = re.compile('^\/\* SPDX-License-Identifier: .* \*\/$')
def main(argv):
# Parse command line arguments
parser = argparse.ArgumentParser()
parser.add_argument('-o', dest='output', metavar='file',
type=argparse.FileType('w', encoding='utf-8'),
default=sys.stdout,
help='Output file name (default: standard output)')
parser.add_argument('input', type=str,
help='Input file name.')
args = parser.parse_args(argv[1:])
lines = open(args.input, 'r').readlines()
pipeline = args.input.split('/')[-1].replace('.mojom', '')
if not regex_spdx.match(lines[0]):
raise Exception(f'Missing SPDX license header in {args.input}')
data = lines[0]
data += f'''\
/*
* Copyright (C) 2021, Google Inc.
*
* {pipeline}_ipa_interface.cpp - Docs file for generated {pipeline}.mojom
*
* This file is auto-generated. Do not edit.
*/
namespace libcamera {{
'''
in_block = False
comment = ''
for lineno, line in enumerate(lines, start=1):
if regex_block_start.match(line):
if in_block:
raise SyntaxError('Expected end of comment',
(args.input, lineno, 1, line))
in_block = True
comment = line
continue
if regex_block_end.match(line):
if in_block:
comment += line
data += comment + '\n'
in_block = False
continue
if in_block:
comment += line
data += '} /* namespace libcamera */\n'
args.output.write(data)
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))
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