anvil/devstack/Downloader.py
2012-01-12 23:48:54 -08:00

49 lines
1.6 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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 urlparse import urlparse
import re
from Shell import (execute, mkdirslist)
from Util import (create_regex, MASTER_BRANCH)
import Logger
LOG = Logger.getLogger("install.downloader")
EXT_REG = create_regex(r"/^(.*?)\.git\s*$/i")
def _gitdownload(storewhere, uri, branch=None):
dirsmade = mkdirslist(storewhere)
LOG.info("Downloading from %s to %s" % (uri, storewhere))
cmd = ["git", "clone"] + [uri, storewhere]
execute(*cmd)
if(branch and branch != MASTER_BRANCH):
LOG.info("Adjusting git branch to %s" % (branch))
cmd = ['git', 'checkout'] + [branch]
execute(*cmd, cwd=storewhere)
return dirsmade
def download(storewhere, uri, branch=None):
#figure out which type
up = urlparse(uri)
if(up and up.scheme.lower() == "git" or
EXT_REG.match(up.path)):
return _gitdownload(storewhere, uri, branch)
else:
msg = "Currently we do not know how to download %s" % (uri)
raise NotImplementedError(msg)