giftwrap/giftwrap/openstack_commit.py

141 lines
4.3 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2014, Craig Tracey <craigtracey@gmail.com>
# 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
import logging
import os
import re
import yaml
from giftwrap.gerrit import GerritReview
LOG = logging.getLogger(__name__)
class OpenstackCommit(object):
def __init__(self, commit, project, branch, meta_cache_dir=None):
self.commit = commit
self.project = project
self.branch = branch
self._change_id = None
self._editable_dependencies = None
self._pip_dependencies = None
self._is_merge = None
self._parent = None
self._gerrit_review = None
self._meta_cache_dir = meta_cache_dir
@property
def hexsha(self):
return self.commit.hexsha
@property
def change_id(self):
if not self._change_id:
self._change_id = str(self._get_change_id())
return self._change_id
@property
def is_merge(self):
if self._is_merge is None:
self._is_merge = (len(self.commit.parents) == 2)
return self._is_merge
@property
def parent(self):
if self.is_merge:
self._parent = OpenstackCommit(self.commit.parents[1],
self.project, self.branch)
return self._parent
@property
def gerrit_review(self):
if not self._gerrit_review:
self._gerrit_review = GerritReview(self.change_id,
self.project, self.branch)
return self._gerrit_review
def _gather_dependencies(self):
try:
deps = self.gerrit_review.build_pip_dependencies()
self._editable_dependencies = []
self._pip_dependencies = {}
for dep in deps:
if '-e' in dep:
self._editable_dependencies.append(dep)
else:
parts = dep.split('==')
self._pip_dependencies[parts[0]] = parts[1]
except Exception as e:
LOG.debug("Couldn't find dependencies for %s: %s", self.hexsha, e)
@property
def pip_dependencies(self):
if not self._pip_dependencies:
self._gather_dependencies()
return self._pip_dependencies
@property
def editable_dependencies(self):
if not self._editable_dependencies:
self._gather_dependencies()
return self._editable_dependencies
def _get_change_id(self):
commit = self.commit
if self.is_merge:
commit = self.parent.commit
match = re.search('Change-Id:\s*(I\w+)', commit.message)
if match:
return match.group(1)
def is_cached(self):
return os.path.isfile(self.cache_file)
@property
def cache_file(self):
return os.path.join(self._meta_cache_dir, self.hexsha)
def _get_from_cache(self, key):
if self.is_cached():
with open(self.cache_file, 'r') as fh:
cached_data = yaml.load(fh)
if key in cached_data:
return cached_data[key]
return None
def is_cacheable(self):
if self.pip_dependencies or self.editable_dependencies:
return True
return False
def __dict__(self):
data = {}
data['pip_dependencies'] = self.pip_dependencies
data['editable_dependencies'] = self.editable_dependencies
data['change_id'] = self.change_id
return data
def persist_to_cache(self):
if not self.is_cacheable():
LOG.debug("Not caching %s as there is no point", self.hexsha)
return
dirname = os.path.dirname(self.cache_file)
if not os.path.exists(dirname):
os.makedirs(dirname)
with open(self.cache_file, 'w') as fh:
fh.write(yaml.dump(self.__dict__()))