868295095b
Use commit eaab5fae2502198e9fa57d0d90a7204a2bd83b16: Merge "sort options to make --help output prettier" (Wed Feb 13 12:52:14 2013 +0000) Add processutils to quantum since impl_zmq depends on them. Drop notifier.list_notifier that is not present in oslo. Change-Id: I91d9ec05481b8c24da9fbee1ad4706ff56a3b7aa Fixes: bug #1116290
95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
|
|
# Copyright 2012 OpenStack LLC
|
|
# Copyright 2012-2013 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Utilities for consuming the version from pkg_resources.
|
|
"""
|
|
|
|
import pkg_resources
|
|
|
|
|
|
class VersionInfo(object):
|
|
|
|
def __init__(self, package):
|
|
"""Object that understands versioning for a package
|
|
:param package: name of the python package, such as glance, or
|
|
python-glanceclient
|
|
"""
|
|
self.package = package
|
|
self.release = None
|
|
self.version = None
|
|
self._cached_version = None
|
|
|
|
def __str__(self):
|
|
"""Make the VersionInfo object behave like a string."""
|
|
return self.version_string()
|
|
|
|
def __repr__(self):
|
|
"""Include the name."""
|
|
return "VersionInfo(%s:%s)" % (self.package, self.version_string())
|
|
|
|
def _get_version_from_pkg_resources(self):
|
|
"""Get the version of the package from the pkg_resources record
|
|
associated with the package."""
|
|
try:
|
|
requirement = pkg_resources.Requirement.parse(self.package)
|
|
provider = pkg_resources.get_provider(requirement)
|
|
return provider.version
|
|
except pkg_resources.DistributionNotFound:
|
|
# The most likely cause for this is running tests in a tree
|
|
# produced from a tarball where the package itself has not been
|
|
# installed into anything. Revert to setup-time logic.
|
|
from quantum.openstack.common import setup
|
|
return setup.get_version(self.package)
|
|
|
|
def release_string(self):
|
|
"""Return the full version of the package including suffixes indicating
|
|
VCS status.
|
|
"""
|
|
if self.release is None:
|
|
self.release = self._get_version_from_pkg_resources()
|
|
|
|
return self.release
|
|
|
|
def version_string(self):
|
|
"""Return the short version minus any alpha/beta tags."""
|
|
if self.version is None:
|
|
parts = []
|
|
for part in self.release_string().split('.'):
|
|
if part[0].isdigit():
|
|
parts.append(part)
|
|
else:
|
|
break
|
|
self.version = ".".join(parts)
|
|
|
|
return self.version
|
|
|
|
# Compatibility functions
|
|
canonical_version_string = version_string
|
|
version_string_with_vcs = release_string
|
|
|
|
def cached_version_string(self, prefix=""):
|
|
"""Generate an object which will expand in a string context to
|
|
the results of version_string(). We do this so that don't
|
|
call into pkg_resources every time we start up a program when
|
|
passing version information into the CONF constructor, but
|
|
rather only do the calculation when and if a version is requested
|
|
"""
|
|
if not self._cached_version:
|
|
self._cached_version = "%s%s" % (prefix,
|
|
self.version_string())
|
|
return self._cached_version
|