anvil/devstack/pip.py

72 lines
2.7 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2012 Yahoo! Inc. 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.
from devstack import exceptions as excp
from devstack import log as logging
from devstack import shell as sh
from devstack import settings
LOG = logging.getLogger("devstack.pip")
PIP_UNINSTALL_CMD_OPTS = ['-y', '-q']
PIP_INSTALL_CMD_OPTS = ['-q']
#the pip command is named different :-(
PIP_CMD_NAMES = {
settings.RHEL6: 'pip-python',
settings.FEDORA16: 'pip-python',
settings.UBUNTU11: 'pip',
}
def install(pips, distro):
pipnames = sorted(pips.keys())
root_cmd = PIP_CMD_NAMES[distro]
LOG.info("Installing python packages (%s) using command (%s)" % (", ".join(pipnames), root_cmd))
for name in pipnames:
pipfull = name
pipinfo = pips.get(name)
if pipinfo and pipinfo.get('version'):
version = pipinfo.get('version')
if version is not None:
pipfull = pipfull + "==" + str(version)
LOG.debug("Installing python package (%s)" % (pipfull))
real_cmd = [root_cmd, 'install']
real_cmd += PIP_INSTALL_CMD_OPTS
options = pipinfo.get('options')
if options is not None:
LOG.debug("Using pip options: %s" % (str(options)))
real_cmd += [str(options)]
real_cmd += [pipfull]
sh.execute(*real_cmd, run_as_root=True)
def uninstall(pips, distro, skip_errors=True):
pipnames = sorted(pips.keys())
root_cmd = PIP_CMD_NAMES[distro]
LOG.info("Uninstalling python packages (%s) using command (%s)" % (", ".join(pipnames), root_cmd))
for name in pipnames:
try:
LOG.debug("Uninstalling python package (%s)" % (name))
cmd = [root_cmd, 'uninstall'] + PIP_UNINSTALL_CMD_OPTS + [str(name)]
sh.execute(*cmd, run_as_root=True)
except excp.ProcessExecutionError:
if skip_errors:
LOG.warn(("Ignoring execution error that occured when uninstalling pip %s!"
" (this may be ok if it was uninstalled by a previous component)") % (name))
else:
raise