2f8e95baec
For usage documentation, refer to heat/tests/testing-overview.txt. run_tests.sh is what runs the tests. Fixes #44 Signed-off-by: Jeff Peeler <jpeeler@redhat.com>
247 lines
7.3 KiB
Python
247 lines
7.3 KiB
Python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Copyright 2010 OpenStack, LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Installation script for Heat's development virtualenv
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"""
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import optparse
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import os
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import subprocess
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import sys
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ROOT = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
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VENV = os.path.join(ROOT, '.venv')
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PIP_REQUIRES = os.path.join(ROOT, 'tools', 'pip-requires')
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TEST_REQUIRES = os.path.join(ROOT, 'tools', 'test-requires')
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PY_VERSION = "python%s.%s" % (sys.version_info[0], sys.version_info[1])
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def die(message, *args):
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print >> sys.stderr, message % args
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sys.exit(1)
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def check_python_version():
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if sys.version_info < (2, 6):
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die("Need Python Version >= 2.6")
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def run_command_with_code(cmd, redirect_output=True, check_exit_code=True):
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"""
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Runs a command in an out-of-process shell, returning the
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output of that command. Working directory is ROOT.
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"""
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if redirect_output:
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stdout = subprocess.PIPE
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else:
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stdout = None
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proc = subprocess.Popen(cmd, cwd=ROOT, stdout=stdout)
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output = proc.communicate()[0]
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if check_exit_code and proc.returncode != 0:
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die('Command "%s" failed.\n%s', ' '.join(cmd), output)
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return (output, proc.returncode)
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def run_command(cmd, redirect_output=True, check_exit_code=True):
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return run_command_with_code(cmd, redirect_output, check_exit_code)[0]
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class Distro(object):
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def check_cmd(self, cmd):
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return bool(run_command(['which', cmd], check_exit_code=False).strip())
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def install_virtualenv(self):
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if self.check_cmd('virtualenv'):
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return
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if self.check_cmd('easy_install'):
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print 'Installing virtualenv via easy_install...',
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if run_command(['easy_install', 'virtualenv']):
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print 'Succeeded'
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return
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else:
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print 'Failed'
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die('ERROR: virtualenv not found.\n\nHeat development'
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' requires virtualenv, please install it using your'
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' favorite package management tool')
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def post_process(self):
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"""Any distribution-specific post-processing gets done here.
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In particular, this is useful for applying patches to code inside
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the venv."""
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pass
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class Fedora(Distro):
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"""This covers all Fedora-based distributions.
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Includes: Fedora, RHEL, CentOS, Scientific Linux"""
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def check_pkg(self, pkg):
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return run_command_with_code(['rpm', '-q', pkg],
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check_exit_code=False)[1] == 0
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def yum_install(self, pkg, **kwargs):
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print "Attempting to install '%s' via yum" % pkg
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run_command(['sudo', 'yum', 'install', '-y', pkg], **kwargs)
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def apply_patch(self, originalfile, patchfile):
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run_command(['patch', originalfile, patchfile])
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def install_virtualenv(self):
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if self.check_cmd('virtualenv'):
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return
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if not self.check_pkg('python-virtualenv'):
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self.yum_install('python-virtualenv', check_exit_code=False)
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super(Fedora, self).install_virtualenv()
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def post_process(self):
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"""Workaround for a bug in eventlet.
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This currently affects RHEL6.1, but the fix can safely be
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applied to all RHEL and Fedora distributions.
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This can be removed when the fix is applied upstream
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Nova: https://bugs.launchpad.net/nova/+bug/884915
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Upstream: https://bitbucket.org/which_linden/eventlet/issue/89"""
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# Install "patch" program if it's not there
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if not self.check_pkg('patch'):
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self.yum_install('patch')
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# Apply the eventlet patch
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self.apply_patch(os.path.join(VENV, 'lib', PY_VERSION, 'site-packages',
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'eventlet/green/subprocess.py'),
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'contrib/redhat-eventlet.patch')
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def get_distro():
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if os.path.exists('/etc/fedora-release') or \
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os.path.exists('/etc/redhat-release'):
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return Fedora()
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else:
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return Distro()
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def check_dependencies():
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get_distro().install_virtualenv()
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def create_virtualenv(venv=VENV, no_site_packages=True):
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"""Creates the virtual environment and installs PIP only into the
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virtual environment
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"""
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print 'Creating venv...',
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if no_site_packages:
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run_command(['virtualenv', '-q', '--no-site-packages', VENV])
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else:
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run_command(['virtualenv', '-q', VENV])
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print 'done.'
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print 'Installing pip in virtualenv...',
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if not run_command(['tools/with_venv.sh', 'easy_install',
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'pip>1.0']).strip():
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die("Failed to install pip.")
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print 'done.'
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def pip_install(*args):
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run_command(['tools/with_venv.sh',
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'pip', 'install', '--upgrade'] + list(args),
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redirect_output=False)
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def install_dependencies(venv=VENV):
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print 'Installing dependencies with pip (this can take a while)...'
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# First things first, make sure our venv has the latest pip and distribute.
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pip_install('pip')
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pip_install('distribute')
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# Install greenlet by hand - just listing it in the requires file does not
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# get it in stalled in the right order
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pip_install('greenlet')
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pip_install('-r', PIP_REQUIRES)
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pip_install('-r', TEST_REQUIRES)
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# Tell the virtual env how to "import nova"
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#pthfile = os.path.join(venv, "lib", PY_VERSION, "site-packages",
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# "nova.pth")
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#f = open(pthfile, 'w')
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#f.write("%s\n" % ROOT)
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def post_process():
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get_distro().post_process()
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def print_help():
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help = """
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Heat development environment setup is complete.
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Heat development uses virtualenv to track and manage Python dependencies
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while in development and testing.
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To activate the Heat virtualenv for the extent of your current shell
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session you can run:
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$ source .venv/bin/activate
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Or, if you prefer, you can run commands in the virtualenv on a case by case
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basis by running:
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$ tools/with_venv.sh <your command>
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Also, make test will automatically use the virtualenv.
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"""
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print help
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def parse_args():
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"""Parse command-line arguments"""
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parser = optparse.OptionParser()
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parser.add_option("-n", "--no-site-packages", dest="no_site_packages",
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default=False, action="store_true",
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help="Do not inherit packages from global Python install")
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return parser.parse_args()
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def main(argv):
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(options, args) = parse_args()
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check_python_version()
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check_dependencies()
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create_virtualenv(no_site_packages=options.no_site_packages)
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install_dependencies()
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post_process()
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print_help()
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if __name__ == '__main__':
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main(sys.argv)
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