anvil/devstack/packaging/apt.py
2012-03-15 20:42:18 -07:00

97 lines
3.0 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 log as logging
from devstack import packager as pack
from devstack import shell as sh
LOG = logging.getLogger("devstack.packaging.apt")
# Base apt commands
APT_GET = ['apt-get']
APT_PURGE = ["purge", "-y"]
APT_REMOVE = ["remove", "-y"]
APT_INSTALL = ["install", "-y"]
APT_AUTOREMOVE = ['autoremove', '-y']
# Should we use remove or purge?
APT_DO_REMOVE = APT_PURGE
# Make sure its non-interactive
# http://awaseconfigurations.wordpress.com/tag/debian_frontend/
ENV_ADDITIONS = {'DEBIAN_FRONTEND': 'noninteractive'}
# Apt separates its pkg names and versions with a equal sign
VERSION_TEMPL = "%s=%s"
class AptPackager(pack.Packager):
def __init__(self, distro, keep_packages):
pack.Packager.__init__(self, distro, keep_packages)
self.auto_remove = True
def _format_pkg(self, name, version):
if version:
pkg_full_name = VERSION_TEMPL % (name, version)
else:
pkg_full_name = name
return pkg_full_name
def _execute_apt(self, cmd, **kargs):
return sh.execute(*cmd, run_as_root=True,
check_exit_code=True,
env_overrides=ENV_ADDITIONS,
**kargs)
def _remove_batch(self, pkgs):
cmds = []
which_removed = []
for info in pkgs:
name = info['name']
removable = info.get('removable', True)
if not removable:
continue
if self._pkg_remove_special(name, info):
which_removed.append(name)
continue
pkg_full = self._format_pkg(name, info.get("version"))
if pkg_full:
cmds.append(pkg_full)
which_removed.append(name)
if cmds:
cmd = APT_GET + APT_DO_REMOVE + cmds
self._execute_apt(cmd)
if which_removed and self.auto_remove:
cmd = APT_GET + APT_AUTOREMOVE
self._execute_apt(cmd)
return which_removed
def install(self, pkg):
name = pkg['name']
if self._pkg_install_special(name, pkg):
return
else:
pkg_full = self._format_pkg(name, pkg.get("version"))
cmd = APT_GET + APT_INSTALL + [pkg_full]
self._execute_apt(cmd)
def _pkg_remove_special(self, name, info):
return False
def _pkg_install_special(self, name, info):
return False