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utils: Re-implement parse_requirements

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This patch re-implements utils.parse_requirements() without retrieving
code from OpenStack.

Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
IWASE Yusuke 2016-12-20 11:48:00 +09:00 committed by FUJITA Tomonori
parent e9099345d2
commit 37391bb5bd
1 changed files with 25 additions and 48 deletions
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73
ryu/utils.py
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@ -14,29 +14,15 @@
# See the License for the specific language governing permissions and
# limitations under the License.
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# 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 importlib
import logging
import os
import sys
import re
import six
from pip import req as pip_req
from pip.download import PipSession
LOG = logging.getLogger('ryu.utils')
@ -139,38 +125,29 @@ def binary_str(data):
return ''.join('\\x%02x' % byte for byte in bytearray(data))
# the following functions are taken from OpenStack
#
# Get requirements from the first file that exists
def get_reqs_from_files(requirements_files):
for requirements_file in requirements_files:
if os.path.exists(requirements_file):
with open(requirements_file, 'r') as fil:
return fil.read().split('\n')
return []
def parse_requirements(requirements_files=None):
requirements_files = requirements_files if requirements_files else [
'requirements.txt', 'tools/pip-requires']
"""
Parses requirements files and returns a list of requirements.
Returned list would be like::
['foo', 'bar>=X.X', ...]
:param requirements_files: List of requirements files. The default
is ['requirements.txt', 'tools/pip-requires'].
:return: List of requirements.
"""
requirements_files = requirements_files or [
'requirements.txt',
'tools/pip-requires',
]
requirements = []
for line in get_reqs_from_files(requirements_files):
# For the requirements list, we need to inject only the portion
# after egg= so that distutils knows the package it's looking for
# such as:
# -e git://github.com/openstack/nova/master#egg=nova
if re.match(r'\s*-e\s+', line):
requirements.append(re.sub(r'\s*-e\s+.*#egg=(.*)$', r'\1',
line))
# such as:
# http://github.com/openstack/nova/zipball/master#egg=nova
elif re.match(r'\s*https?:', line):
requirements.append(re.sub(r'\s*https?:.*#egg=(.*)$', r'\1',
line))
# -f lines are for index locations, and don't get used here
elif re.match(r'\s*-f\s+', line):
pass
else:
requirements.append(line)
for f in requirements_files:
if not os.path.isfile(f):
continue
for r in pip_req.parse_requirements(f, session=PipSession()):
requirements.append(str(r.req))
return requirements