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#!/usr/bin/env python2.7
# Copyright 2015 gRPC authors.
#
# 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.
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('--precommit',
default=False,
action='store_true')
args = argp.parse_args()
# open the license text
with open('NOTICE.txt') as f:
LICENSE_NOTICE = 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 = {
'.bat': r'@rem\s*',
'.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*',
'BUILD': r'#\s*',
}
_EXEMPT = frozenset((
# Generated protocol compiler output.
'examples/python/helloworld/helloworld_pb2.py',
'examples/python/helloworld/helloworld_pb2_grpc.py',
'examples/python/multiplex/helloworld_pb2.py',
'examples/python/multiplex/helloworld_pb2_grpc.py',
'examples/python/multiplex/route_guide_pb2.py',
'examples/python/multiplex/route_guide_pb2_grpc.py',
'examples/python/route_guide/route_guide_pb2.py',
'examples/python/route_guide/route_guide_pb2_grpc.py',
'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
'src/cpp/server/health/health.pb.h',
'src/cpp/server/health/health.pb.c',
# An older file originally from outside gRPC.
'src/php/tests/bootstrap.php',
# census.proto copied from github
'tools/grpcz/census.proto',
# status.proto copied from googleapis
'src/proto/grpc/status/status.proto',
))
RE_YEAR = r'Copyright (?P<first_year>[0-9]+\-)?(?P<last_year>[0-9]+) gRPC authors.'
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_NOTICE))
for k, v in LICENSE_PREFIX.iteritems())
if args.precommit:
FILE_LIST_COMMAND = 'git status -z | grep -Poz \'(?<=^[MARC][MARCD ] )[^\s]+\''
else:
FILE_LIST_COMMAND = 'git ls-tree -r --name-only -r HEAD | ' \
'grep -v ^third_party/ |' \
'grep -v "\(ares_config.h\|ares_build.h\)"'
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['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
filename_list = []
try:
filename_list = subprocess.check_output(FILE_LIST_COMMAND,
shell=True).splitlines()
except subprocess.CalledProcessError:
sys.exit(0)
for filename in filename_list:
if filename in _EXEMPT:
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:
pass
elif 'DO NOT EDIT' not in text 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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