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# Copyright (c) 2013 New Dream Network, LLC (DreamHost)
#
# 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.
#
# Copyright (C) 2013 Association of Universities for Research in Astronomy
# (AURA)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. 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.
#
# 3. The name of AURA and its representatives may not be used to
# endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY AURA ``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 AURA BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
import os
import textwrap
import packaging.requirements
from pbr._compat.five import string_type
from pbr.tests import fixtures as pbr_fixtures
from pbr.tests.functional import base
# Taken from setuptools
#
# https://github.com/pypa/setuptools/blob/v44.1.1/pkg_resources/__init__.py#L2378-L2389
def yield_lines(strs):
"""Yield non-empty/non-comment lines of a string or sequence"""
if isinstance(strs, string_type):
for s in strs.splitlines():
s = s.strip()
# skip blank lines/comments
if s and not s.startswith('#'):
yield s
else:
for ss in strs:
for s in yield_lines(ss):
yield s
# Taken from setuptools
#
# https://github.com/pypa/setuptools/blob/v44.1.1/pkg_resources/__init__.py#L3189-L3212
def split_sections(s):
"""Split a string or iterable thereof into (section, content) pairs
Each ``section`` is a stripped version of the section header ("[section]")
and each ``content`` is a list of stripped lines excluding blank lines and
comment-only lines. If there are any such lines before the first section
header, they're returned in a first ``section`` of ``None``.
"""
section = None
content = []
for line in yield_lines(s):
if line.startswith("["):
if line.endswith("]"):
if section or content:
yield section, content
section = line[1:-1].strip()
content = []
else:
raise ValueError("Invalid section heading", line)
else:
content.append(line)
# wrap up last segment
yield section, content
class TestRequirementParsing(base.BaseTestCase):
def test_requirement_parsing(self):
pkgs = {
'test_reqparse': {
'requirements.txt': textwrap.dedent(
"""\
bar
quux<1.0; python_version=='2.6'
requests-aws>=0.1.4 # BSD License (3 clause)
Routes>=1.12.3,!=2.0,!=2.1;python_version=='2.7'
requests-kerberos>=0.6;python_version=='2.7' # MIT
"""
),
'setup.cfg': textwrap.dedent(
"""\
[metadata]
name = test_reqparse
[extras]
test =
foo
baz>3.2 :python_version=='2.7' # MIT
bar>3.3 :python_version=='2.7' # MIT # Apache
"""
),
},
}
pkg_dirs = self.useFixture(pbr_fixtures.Packages(pkgs)).package_dirs
pkg_dir = pkg_dirs['test_reqparse']
# pkg_resources.split_sections uses None as the title of an
# anonymous section instead of the empty string. Weird.
expected_requirements = {
None: ['bar', 'requests-aws>=0.1.4'],
":(python_version=='2.6')": ['quux<1.0'],
":(python_version=='2.7')": [
'Routes!=2.0,!=2.1,>=1.12.3',
'requests-kerberos>=0.6',
],
'test': ['foo'],
"test:(python_version=='2.7')": ['baz>3.2', 'bar>3.3'],
}
venv = self.useFixture(pbr_fixtures.Venv('reqParse'))
bin_python = venv.python
# Two things are tested by this
# 1) pbr properly parses markers from requirements.txt and setup.cfg
# 2) bdist_wheel causes pbr to not evaluate markers
self._run_cmd(
bin_python,
('setup.py', 'bdist_wheel'),
allow_fail=False,
cwd=pkg_dir,
)
egg_info = os.path.join(pkg_dir, 'test_reqparse.egg-info')
requires_txt = os.path.join(egg_info, 'requires.txt')
with open(requires_txt, 'rt') as requires:
generated_requirements = dict(split_sections(requires))
# NOTE(dhellmann): We have to spell out the comparison because
# the rendering for version specifiers in a range is not
# consistent across versions of setuptools.
for section, expected in expected_requirements.items():
# We wrap in str since we need packaging 22.0.0 or later to do
# comparisons [1] and that doesn't support Python 2.7, 3.6
#
# https://github.com/pypa/packaging/commit/aebc072a06925cc0004b031e6b6f3028e5e2e686
# https://pypi.org/project/packaging/22.0/
exp_parsed = [
str(packaging.requirements.Requirement(s)) for s in expected
]
gen_parsed = [
str(packaging.requirements.Requirement(s))
for s in generated_requirements[section]
]
self.assertEqual(exp_parsed, gen_parsed)
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