425f7c675a
The charm-helpers project have re-licensed to Apache 2.0 inline with the agreed licensing approach to intefaces, layers and charms generally. Resync helpers to bring charmhelpers inline with charm codebase. Change-Id: I7d884baad621eaa22cdef4f4b980044616116513
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
# Copyright 2014-2015 Canonical Limited.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import tarfile
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import zipfile
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from charmhelpers.core import (
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host,
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hookenv,
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)
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class ArchiveError(Exception):
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pass
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def get_archive_handler(archive_name):
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if os.path.isfile(archive_name):
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if tarfile.is_tarfile(archive_name):
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return extract_tarfile
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elif zipfile.is_zipfile(archive_name):
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return extract_zipfile
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else:
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# look at the file name
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for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
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if archive_name.endswith(ext):
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return extract_tarfile
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for ext in ('.zip', '.jar'):
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if archive_name.endswith(ext):
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return extract_zipfile
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def archive_dest_default(archive_name):
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archive_file = os.path.basename(archive_name)
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return os.path.join(hookenv.charm_dir(), "archives", archive_file)
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def extract(archive_name, destpath=None):
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handler = get_archive_handler(archive_name)
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if handler:
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if not destpath:
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destpath = archive_dest_default(archive_name)
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if not os.path.isdir(destpath):
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host.mkdir(destpath)
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handler(archive_name, destpath)
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return destpath
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else:
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raise ArchiveError("No handler for archive")
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def extract_tarfile(archive_name, destpath):
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"Unpack a tar archive, optionally compressed"
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archive = tarfile.open(archive_name)
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archive.extractall(destpath)
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def extract_zipfile(archive_name, destpath):
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"Unpack a zip file"
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archive = zipfile.ZipFile(archive_name)
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archive.extractall(destpath)
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