79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright (C) 2012 Bastian Kleineidam
|
|
#
|
|
# This program 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.
|
|
#
|
|
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
"""Archive commands for the tarfile Python module."""
|
|
from .. import util
|
|
import tarfile
|
|
|
|
READ_SIZE_BYTES = 1024*1024
|
|
|
|
|
|
def list_tar (archive, compression, cmd, **kwargs):
|
|
"""List a TAR archive with the tarfile Python module."""
|
|
verbose = kwargs['verbose']
|
|
if verbose:
|
|
util.log_info('listing %s...' % archive)
|
|
tfile = tarfile.open(archive)
|
|
try:
|
|
tfile.list(verbose=verbose)
|
|
finally:
|
|
tfile.close()
|
|
return None
|
|
|
|
test_tar = list_tar
|
|
|
|
def extract_tar (archive, compression, cmd, **kwargs):
|
|
"""Extract a TAR archive with the tarfile Python module."""
|
|
verbose = kwargs['verbose']
|
|
outdir = kwargs['outdir']
|
|
if verbose:
|
|
util.log_info('extracting %s...' % archive)
|
|
tfile = tarfile.open(archive)
|
|
try:
|
|
tfile.extractall(path=outdir)
|
|
finally:
|
|
tfile.close()
|
|
if verbose:
|
|
util.log_info('... extracted to %s' % outdir)
|
|
return None
|
|
|
|
|
|
def create_tar (archive, compression, cmd, *args, **kwargs):
|
|
"""Create a TAR archive with the tarfile Python module."""
|
|
verbose = kwargs['verbose']
|
|
if verbose:
|
|
util.log_info('creating %s...' % archive)
|
|
mode = get_tar_mode(compression)
|
|
tfile = tarfile.open(archive, mode)
|
|
try:
|
|
for filename in args:
|
|
tfile.add(filename)
|
|
finally:
|
|
tfile.close()
|
|
return None
|
|
|
|
|
|
def get_tar_mode (compression):
|
|
"""Determine tarfile open mode according to the given compression."""
|
|
if compression == 'gzip':
|
|
return 'w:gz'
|
|
if compression == 'bzip2':
|
|
return 'w:bz2'
|
|
if compression:
|
|
msg = 'pytarfile does not support %s for tar compression'
|
|
util.log_error(msg % compression)
|
|
# no compression
|
|
return 'w'
|