cdist/cdist/autil.py
2017-08-09 16:56:02 +02:00

72 lines
1.7 KiB
Python

# -*- coding: utf-8 -*-
#
# 2017 Darko Poljak (darko.poljak at gmail.com)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
import cdist
import tarfile
import os
import glob
import tempfile
_ARCHIVING_MODES = {
'tar': '',
'tgz': 'gz',
'tbz2': 'bz2',
'txz': 'xz',
}
_UNARCHIVE_OPT = {
'tar': None,
'tgz': '-z',
'tbz2': '-j',
'txz': '-J',
}
# Archiving will be enabled if directory contains more than FILES_LIMIT files.
FILES_LIMIT = 1
def get_extract_option(mode):
return _UNARCHIVE_OPT[mode]
def tar(source, mode="tgz"):
if mode not in _ARCHIVING_MODES:
raise cdist.Error("Unsupported archiving mode {}.".format(mode))
files = glob.glob1(source, '*')
fcnt = len(files)
if fcnt <= FILES_LIMIT:
return None, fcnt
tarmode = 'w:{}'.format(_ARCHIVING_MODES[mode])
_, tarpath = tempfile.mkstemp(suffix='.' + mode)
with tarfile.open(tarpath, tarmode, dereference=True) as tar:
if os.path.isdir(source):
for f in files:
tar.add(os.path.join(source, f), arcname=f)
else:
tar.add(source)
return tarpath, fcnt