keystone/tools/install_venv.py
Joe Heck 5816542c0e renaming pip-requires-test to test-requires
* (per request from jeblair)
 * version of python-ldap match between
   test and requires
 * pinned to 2.3.13 to let tests work in macosx
 * separating dependencies between deps and test
 * removed python-keystoneclient from install_requires
   for now. (there is no python-keystoneclient in PyPI)
   Real solution coming.

Change-Id: I89e50d6747fb57dee7badb17bc1231d3619e3ef7
2012-02-28 00:31:21 -08:00

134 lines
3.9 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack LLC
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
"""
virtualenv installation script
"""
import os
import subprocess
import sys
ROOT = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
VENV = os.path.join(ROOT, '.venv')
PIP_REQUIRES = os.path.join(ROOT, 'tools', 'pip-requires')
TEST_REQUIRES = os.path.join(ROOT, 'tools', 'test-requires')
PY_VERSION = "python%s.%s" % (sys.version_info[0], sys.version_info[1])
def die(message, *args):
print >>sys.stderr, message % args
sys.exit(1)
def check_python_version():
if sys.version_info < (2, 6):
die("Need Python Version >= 2.6")
def run_command(cmd, redirect_output=True, check_exit_code=True):
"""
Runs a command in an out-of-process shell, returning the
output of that command. Working directory is ROOT.
"""
if redirect_output:
stdout = subprocess.PIPE
else:
stdout = None
proc = subprocess.Popen(cmd, cwd=ROOT, stdout=stdout)
output = proc.communicate()[0]
if check_exit_code and proc.returncode != 0:
die('Command "%s" failed.\n%s', ' '.join(cmd), output)
return output
HAS_EASY_INSTALL = bool(run_command(['which', 'easy_install'],
check_exit_code=False).strip())
HAS_VIRTUALENV = bool(run_command(['which', 'virtualenv'],
check_exit_code=False).strip())
def check_dependencies():
"""Make sure virtualenv is in the path."""
print 'Checking for virtualenv...'
if not HAS_VIRTUALENV:
print 'not found.'
# Try installing it via easy_install...
if HAS_EASY_INSTALL:
print 'Installing virtualenv via easy_install...',
if not (run_command(['which', 'easy_install']) and
run_command(['easy_install', 'virtualenv'])):
die('ERROR: virtualenv not found.\n\nNova development'
' requires virtualenv, please install it using your'
' favorite package management tool')
print 'done.'
print 'done.'
def create_virtualenv(venv=VENV):
"""Creates the virtual environment and installs PIP only into the
virtual environment
"""
print 'Creating venv...',
run_command(['virtualenv', '-q', '--no-site-packages', VENV])
print 'done.'
print 'Installing pip in virtualenv...',
if not run_command(['tools/with_venv.sh', 'easy_install', 'pip']).strip():
die("Failed to install pip.")
print 'done.'
def install_dependencies(venv=VENV):
print 'Installing dependencies with pip (this can take a while)...'
run_command(['tools/with_venv.sh', 'pip', 'install', '-r',
PIP_REQUIRES, '-r', TEST_REQUIRES], redirect_output=False)
def print_help():
help = """
Virtual environment configuration complete.
To activate the virtualenv for the extent of your current shell
session you can run:
$ source %s/bin/activate
Or, if you prefer, you can run commands in the virtualenv on a case by case
basis by running:
$ tools/with_venv.sh <your command>
""" % VENV
print help
def main(argv):
check_python_version()
check_dependencies()
create_virtualenv()
install_dependencies()
print_help()
if __name__ == '__main__':
main(sys.argv)