magnum-ui/tools/install_venv.py
gecong1973 39d6562717 Using sys.exit(main()) instead of main()
As we known, Exceptions are raised by the sys.exit() function.
When they are not handled, no stack traceback is printed in the Python interpreter.

In this patch we have known main() got return values(eg:0, 1), but it can't
specifies exit status when terminate the main thread by unusing sys.exit().
So when using sys.exit(main()) instead of main() may be more readable and reasonable.

Change-Id: Ia0737272aaa943b2ecab38ae292c8539e77e8723
2016-12-28 11:13:02 +08:00

72 lines
2.4 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2010 OpenStack Foundation
# Copyright 2013 IBM Corp.
#
# 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 os
import sys
import install_venv_common as install_venv # noqa
def print_help(venv, root):
help = """
OpenStack development environment setup is complete.
OpenStack development uses virtualenv to track and manage Python
dependencies while in development and testing.
To activate the OpenStack 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:
$ %s/tools/with_venv.sh <your command>
Also, make test will automatically use the virtualenv.
"""
print(help % (venv, root))
def main(argv):
root = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
if os.environ.get('tools_path'):
root = os.environ['tools_path']
venv = os.path.join(root, '.venv')
if os.environ.get('venv'):
venv = os.environ['venv']
pip_requires = os.path.join(root, 'requirements.txt')
test_requires = os.path.join(root, 'test-requirements.txt')
py_version = "python%s.%s" % (sys.version_info[0], sys.version_info[1])
project = 'OpenStack'
install = install_venv.InstallVenv(root, venv, pip_requires, test_requires,
py_version, project)
options = install.parse_args(argv)
install.check_python_version()
install.check_dependencies()
install.create_virtualenv(no_site_packages=options.no_site_packages)
install.install_dependencies()
print_help(venv, root)
if __name__ == '__main__':
sys.exit(main(sys.argv))