45 lines
1.6 KiB
Python
45 lines
1.6 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 gzip Python module."""
|
||
|
|
from __future__ import absolute_import
|
||
|
|
# now gzip refers to the Python standard module, not the local one
|
||
|
|
import gzip
|
||
|
|
from patoolib import util
|
||
|
|
|
||
|
|
READ_SIZE_BYTES = 1024*1024
|
||
|
|
|
||
|
|
def extract_gzip (archive, encoding, cmd, **kwargs):
|
||
|
|
"""Extract a GZIP archive with the gzip Python module functionality."""
|
||
|
|
verbose = kwargs['verbose']
|
||
|
|
if verbose:
|
||
|
|
util.log_info('extracting %s...' % archive)
|
||
|
|
targetname = util.get_single_outfile(kwargs['outdir'], archive)
|
||
|
|
gzipfile = gzip.GzipFile(archive)
|
||
|
|
try:
|
||
|
|
targetfile = open(targetname, 'wb')
|
||
|
|
try:
|
||
|
|
data = gzipfile.read(READ_SIZE_BYTES)
|
||
|
|
while data:
|
||
|
|
targetfile.write(data)
|
||
|
|
data = gzipfile.read(READ_SIZE_BYTES)
|
||
|
|
finally:
|
||
|
|
targetfile.close()
|
||
|
|
finally:
|
||
|
|
gzipfile.close()
|
||
|
|
if verbose:
|
||
|
|
util.log_info('... extracted to %s' % targetname)
|
||
|
|
return None
|