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# -*- coding: utf-8 -*-
# reqs.py
# Copyright (C) 2013 LEAP
#
# 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 3 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/>.
"""
Utils to help in the setup process
"""
import os
import re
import sys
def is_develop_mode():
"""
Returns True if we're calling the setup script using the argument for
setuptools development mode.
This avoids messing up with dependency pinning and order, the
responsibility of installing the leap dependencies is left to the
developer.
"""
args = sys.argv
devflags = "setup.py", "develop"
if (args[0], args[1]) == devflags:
return True
return False
def get_reqs_from_files(reqfiles):
"""
Returns the contents of the top requirement file listed as a
string list with the lines
@param reqfiles: requirement files to parse
@type reqfiles: list of str
"""
for reqfile in reqfiles:
if os.path.isfile(reqfile):
return open(reqfile, 'r').read().split('\n')
def parse_requirements(reqfiles=['requirements.txt',
'requirements.pip',
'pkg/requirements.pip']):
"""
Parses the requirement files provided.
@param reqfiles: requirement files to parse
@type reqfiles: list of str
"""
requirements = []
for line in get_reqs_from_files(reqfiles):
# -e git://foo.bar/baz/master#egg=foobar
if re.match(r'\s*-e\s+', line):
pass
# do not try to do anything with externals on vcs
# requirements.append(re.sub(r'\s*-e\s+.*#egg=(.*)$', r'\1',
# line))
# http://foo.bar/baz/foobar/zipball/master#egg=foobar
elif re.match(r'\s*https?:', line):
requirements.append(re.sub(r'\s*https?:.*#egg=(.*)$', r'\1',
line))
# -f lines are for index locations, and don't get used here
elif re.match(r'\s*-f\s+', line):
pass
# argparse is part of the standard library starting with 2.7
# adding it to the requirements list screws distro installs
elif line == 'argparse' and sys.version_info >= (2, 7):
pass
else:
if line != '':
requirements.append(line)
return requirements
|
