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oddmuse/contrib/fix-copyright-years
2015-07-07 12:45:29 +02:00

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2006 Free Software Foundation, Inc.
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# This file is based on code from GNU Radio.
# https://github.com/balister/GNU-Radio/blob/master/dtools/bin/fix-copyright-years
import re
import datetime
import subprocess
import multiprocessing
def command(*args): return subprocess.Popen(args, stdout=subprocess.PIPE).communicate()[0]
def is_free_software(lines):
for line in lines[:50]:
if 'This program is free software' in line: return True
return False
def get_copyright_lines(lines):
start = -1
end = -1
for i, line in enumerate(lines[:20]):
if line.startswith('# Copyright'):
if start == -1: start = i
end = i
if start == -1: raise Exception
return start, end
def copyright_line(author, years):
from_year = years.pop()
to_year = from_year
for year in years:
if year > to_year: to_year = year
elif year < from_year: from_year = year
if from_year == to_year:
return '# Copyright (C) %d %s\n' % (from_year, author)
else:
return '# Copyright (C) %d%d %s\n' % (from_year, to_year, author)
author_re = re.compile('\nAuthor: (.*)\nDate:.* (\d\d\d\d) ')
def fix_co_years(files):
for file in files:
print file
years = {}
changed = False
lines = open(file).readlines()
if not is_free_software(lines):
print ' is not Free Software'
continue
# extract authors and years from git log
log = command('git', 'log', file)
it = re.finditer(author_re, log)
for match in it:
author, year = match.groups()
if author in years:
years[author].add(int(year))
else:
years[author] = set([int(year)])
# extract copyright beginning and end from
try:
start, end = get_copyright_lines(lines)
except:
print ' copyright lines not found'
continue
# only update or add existing authors, don't touch authors not in git log
for author in years.keys():
found = False
for i in range(start, end + 1):
if author in lines[i]:
line = copyright_line(author, years[author])
if line != lines[i]:
lines[i] = line
changed = True
found = True
continue
if not found:
lines.insert(end, copyright_line(author, years[author]))
changed = True
# write file
if changed:
# print ''.join(lines[:30])
# print '------------------------------------------------------------------------'
open(file, 'w').write(''.join(lines))
if __name__ == "__main__":
# get recursive list of files in the repo
files = command('git', 'ls-tree', '--name-only', 'HEAD', '-r').splitlines()
# files = ['contrib/campaignwiki/add-link.pl']
# start n+1 processes to handle the files
num_procs = multiprocessing.cpu_count()
# num_procs = 1
procs = [multiprocessing.Process(
target=lambda *files: fix_co_years(files),
args=files[num::num_procs],
) for num in range(num_procs)]
map(multiprocessing.Process.start, procs)
map(multiprocessing.Process.join, procs)