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#!/usr/bin/env python2.7
# Copyright 2015-2016, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import argparse
import datetime
import os
import re
import sys
import subprocess
# find our home
ROOT = os.path.abspath(
os.path.join(os.path.dirname(sys.argv[0]), '../..'))
os.chdir(ROOT)
# parse command line
argp = argparse.ArgumentParser(description='copyright checker')
argp.add_argument('-o', '--output',
default='details',
choices=['list', 'details'])
argp.add_argument('-s', '--skips',
default=0,
action='store_const',
const=1)
argp.add_argument('-a', '--ancient',
default=0,
action='store_const',
const=1)
argp.add_argument('-f', '--fix',
default=False,
action='store_true');
args = argp.parse_args()
# open the license text
with open('LICENSE') as f:
LICENSE = f.read().splitlines()
# license format by file extension
# key is the file extension, value is a format string
# that given a line of license text, returns what should
# be in the file
LICENSE_PREFIX = {
'.c': r'\s*\*\s*',
'.cc': r'\s*\*\s*',
'.h': r'\s*\*\s*',
'.m': r'\s*\*\s*',
'.php': r'\s*\*\s*',
'.js': r'\s*\*\s*',
'.py': r'#\s*',
'.pyx': r'#\s*',
'.pxd': r'#\s*',
'.pxi': r'#\s*',
'.rb': r'#\s*',
'.sh': r'#\s*',
'.proto': r'//\s*',
'.cs': r'//\s*',
'.mak': r'#\s*',
'Makefile': r'#\s*',
'Dockerfile': r'#\s*',
'LICENSE': '',
}
KNOWN_BAD = set([
'src/php/tests/bootstrap.php',
])
RE_YEAR = r'Copyright (?P<first_year>[0-9]+\-)?(?P<last_year>[0-9]+), Google Inc\.'
RE_LICENSE = dict(
(k, r'\n'.join(
LICENSE_PREFIX[k] +
(RE_YEAR if re.search(RE_YEAR, line) else re.escape(line))
for line in LICENSE))
for k, v in LICENSE_PREFIX.iteritems())
def load(name):
with open(name) as f:
return f.read()
def save(name, text):
with open(name, 'w') as f:
f.write(text)
assert(re.search(RE_LICENSE['LICENSE'], load('LICENSE')))
assert(re.search(RE_LICENSE['Makefile'], load('Makefile')))
def log(cond, why, filename):
if not cond: return
if args.output == 'details':
print '%s: %s' % (why, filename)
else:
print filename
# scan files, validate the text
ok = True
for filename in subprocess.check_output('git ls-tree -r --name-only -r HEAD | grep -v ^third_party/',
shell=True).splitlines():
if filename in KNOWN_BAD: continue
ext = os.path.splitext(filename)[1]
base = os.path.basename(filename)
if ext in RE_LICENSE:
re_license = RE_LICENSE[ext]
elif base in RE_LICENSE:
re_license = RE_LICENSE[base]
else:
log(args.skips, 'skip', filename)
continue
try:
text = load(filename)
except:
continue
m = re.search(re_license, text)
if m:
gdict = m.groupdict()
last_modified = int(subprocess.check_output('git log -1 --format="%ad" --date=short -- ' + filename, shell=True)[0:4])
latest_claimed = int(gdict['last_year'])
if last_modified > latest_claimed:
print '%s modified %d but copyright only extends to %d' % (filename, last_modified, latest_claimed)
ok = False
if args.fix:
span_start, span_end = m.span(2)
if not gdict['first_year']:
# prepend the old year to the current one.
text = '{}-{}{}'.format(text[:span_end], last_modified, text[span_end:])
else: # already a year range
# simply update the last year
text = '{}{}{}'.format(text[:span_start], last_modified, text[span_end:])
save(filename, text)
print 'Fixed!'
ok = True
elif 'DO NOT EDIT' not in text and 'AssemblyInfo.cs' not in filename and filename != 'src/boringssl/err_data.c':
log(1, 'copyright missing', filename)
ok = False
sys.exit(0 if ok else 1)
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