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#!/usr/bin/env python
# Copyright (c) 2013, 2015, 2019 Luke Shumaker <lukeshu@parabola.nu>
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import re
from pip._internal.req import parse_requirements
from pip._internal.download import PipSession
from packaging.specifiers import Specifier
vcspkgs = {
'git+git://github.com/fredj/cssmin.git@master#egg=cssmin': 'python2-cssmin-fredj',
}
def nextver(ver):
parts = re.sub(r"(a|b|rc|\.dev|\.post|\+).*", '', ver).split('.')
parts.pop()
parts += [str(int(parts.pop())+1)]
return '.'.join(parts)
# https://pip.pypa.io/en/stable/reference/pip_install/#requirements-file-format
# https://setuptools.readthedocs.io/en/latest/pkg_resources.html#requirements-parsing
# https://www.python.org/dev/peps/pep-0440/
def main(args):
for filename in args:
for req in parse_requirements(filename, session=PipSession()):
depname = re.sub(r"^(python2?-)?", 'python2-', req.name.lower())
if req.link:
if req.link.url not in vcspkgs:
raise f"no known package for VCS dep {req}"
depname = vcspkgs[req.link.url]
if req.specifier:
for spec in req.specifier:
# Hack: Allow some slop with '==', otherwise it would be a
# nightmare with keeping things in sync.
if spec.operator == "==":
if len(spec.version.split('.')) <= 2:
spec = Specifier(f"=={spec.version}.*")
else:
spec = Specifier(f"~={spec.version}")
if spec.operator == "~=":
print(f"{depname}>={spec.version} {depname}<{nextver(spec.version)}")
elif spec.operator == "==":
if spec.version.endswith(".*"):
print(f"{depname}>={spec.version[:-2]} {depname}<{nextver(spec.version)}")
else:
print(f"{depname}={spec.version}")
elif spec.operator == '!=':
raise f"version exclusion is not supported: {req}"
elif spec.operator in {'<=', '>=', '<', '>'}:
print(f"{depname}{spec.operator}{spec.version}")
elif spec.operator == "===":
print(f"{depname}={spec.version}")
else:
raise f"unknown specifier operator: {spec.operator}: {req}"
else:
print(f"{depname}")
if __name__ == '__main__':
import sys
main(sys.argv[1:])
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