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#!/usr/bin/env python
# Copyright (c) 2022, Felix Fontein <felix@fontein.de>
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
"""Prevent files without a correct license identifier from being added to the source tree."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import glob
import sys
def format_license_list(licenses):
if not licenses:
return '(empty)'
return ', '.join(['"%s"' % license for license in licenses])
def find_licenses(filename, relax=False):
spdx_license_identifiers = []
other_license_identifiers = []
has_copyright = False
try:
with open(filename, 'r', encoding='utf-8') as f:
for line in f:
line = line.rstrip()
if 'Copyright ' in line:
has_copyright = True
if 'Copyright: ' in line:
print('%s: found copyright line with "Copyright:". Please remove the colon.' % (filename, ))
if 'SPDX-FileCopyrightText: ' in line:
has_copyright = True
idx = line.find('SPDX-License-Identifier: ')
if idx >= 0:
lic_id = line[idx + len('SPDX-License-Identifier: '):]
spdx_license_identifiers.extend(lic_id.split(' OR '))
if 'GNU General Public License' in line:
if 'v3.0+' in line:
other_license_identifiers.append('GPL-3.0-or-later')
if 'version 3 or later' in line:
other_license_identifiers.append('GPL-3.0-or-later')
if 'Simplified BSD License' in line:
other_license_identifiers.append('BSD-2-Clause')
if 'Apache License 2.0' in line:
other_license_identifiers.append('Apache-2.0')
if 'PSF License' in line or 'Python-2.0' in line:
other_license_identifiers.append('PSF-2.0')
if 'MIT License' in line:
other_license_identifiers.append('MIT')
except Exception as exc:
print('%s: error while processing file: %s' % (filename, exc))
if len(set(spdx_license_identifiers)) < len(spdx_license_identifiers):
print('%s: found identical SPDX-License-Identifier values' % (filename, ))
if other_license_identifiers and set(other_license_identifiers) != set(spdx_license_identifiers):
print('%s: SPDX-License-Identifier yielded the license list %s, while manual guessing yielded the license list %s' % (
filename, format_license_list(spdx_license_identifiers), format_license_list(other_license_identifiers)))
if not has_copyright and not relax:
print('%s: found no copyright notice' % (filename, ))
return sorted(spdx_license_identifiers)
def main():
"""Main entry point."""
paths = sys.argv[1:] or sys.stdin.read().splitlines()
# The following paths are allowed to have no license identifier
no_comments_allowed = [
'changelogs/fragments/*.yml',
'changelogs/fragments/*.yaml',
]
# These files are completely ignored
ignore_paths = [
'.ansible-test-timeout.json',
'.reuse/dep5',
'LICENSES/*.txt',
'COPYING',
]
no_comments_allowed = [fn for pattern in no_comments_allowed for fn in glob.glob(pattern)]
ignore_paths = [fn for pattern in ignore_paths for fn in glob.glob(pattern)]
valid_licenses = [license_file[len('LICENSES/'):-len('.txt')] for license_file in glob.glob('LICENSES/*.txt')]
for path in paths:
if path.startswith('./'):
path = path[2:]
if path in ignore_paths or path.startswith('tests/output/'):
continue
if os.stat(path).st_size == 0:
continue
if not path.endswith('.license') and os.path.exists(path + '.license'):
path = path + '.license'
valid_licenses_for_path = valid_licenses
if path.startswith('plugins/') and path.count('/') > 1 and not path.startswith(('plugins/modules/', 'plugins/module_utils/')):
valid_licenses_for_path = [license for license in valid_licenses if license == 'GPL-3.0-or-later']
licenses = find_licenses(path, relax=path in no_comments_allowed)
if not licenses:
if path not in no_comments_allowed:
print('%s: must have at least one license' % (path, ))
else:
for license in licenses:
if license not in valid_licenses_for_path:
print('%s: found not allowed license "%s", must be one of %s' % (
path, license, format_license_list(valid_licenses_for_path)))
if __name__ == '__main__':
main()
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