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#!/usr/bin/python3 -sB
# (imports pythondistdeps from /usr/lib/rpm, hence -B)
#
# This program is free software.
#
# It is placed in the public domain or under the CC0-1.0-Universal license,
# whichever is more permissive.
#
# Alternatively, it may be redistributed and/or modified under the terms of
# the LGPL version 2.1 (or later) or GPL version 2 (or later).
#
# Use this script to generate bundled provides, e.g.:
# ./pythonbundles.py setuptools-47.1.1/pkg_resources/_vendor/vendored.txt
import pathlib
import sys
import pythondistdeps
def generate_bundled_provides(path, namespace):
provides = set()
for line in path.read_text().splitlines():
line, _, comment = line.partition('#')
if comment.startswith('egg='):
# not a real comment
# e.g. git+https://github.com/monty/spam.git@master#egg=spam&...
egg, *_ = comment.strip().partition(' ')
egg, *_ = egg.strip().partition('&')
name = pythondistdeps.normalize_name(egg[4:])
provides.add(f'Provides: bundled({namespace}({name}))')
continue
line = line.strip()
if line:
name, _, version = line.partition('==')
name = pythondistdeps.normalize_name(name)
bundled_name = f"bundled({namespace}({name}))"
python_provide = pythondistdeps.convert(bundled_name, '==', version)
provides.add(f'Provides: {python_provide}')
return provides
def compare(expected, given):
stripped = (l.strip() for l in given)
no_comments = set(l for l in stripped if not l.startswith('#'))
no_comments.discard('')
if expected == no_comments:
return True
extra_expected = expected - no_comments
extra_given = no_comments - expected
if extra_expected:
print('Missing expected provides:', file=sys.stderr)
for provide in sorted(extra_expected):
print(f' - {provide}', file=sys.stderr)
if extra_given:
print('Redundant unexpected provides:', file=sys.stderr)
for provide in sorted(extra_given):
print(f' + {provide}', file=sys.stderr)
return False
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser(prog=sys.argv[0],
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('vendored', metavar='VENDORED.TXT',
help='Upstream information about vendored libraries')
parser.add_argument('-c', '--compare-with', action='store',
help='A string value to compare with and verify')
parser.add_argument('-n', '--namespace', action='store',
help='What namespace of provides will used', default='python3dist')
args = parser.parse_args()
provides = generate_bundled_provides(pathlib.Path(args.vendored), args.namespace)
if args.compare_with:
given = args.compare_with.splitlines()
same = compare(provides, given)
if not same:
sys.exit(1)
else:
for provide in sorted(provides):
print(provide)