patool/patoolib/programs/py_zipfile.py

75 lines
2.7 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (C) 2012-2015 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 zipfile Python module."""
from __future__ import print_function
from .. import util
import zipfile
import os
READ_SIZE_BYTES = 1024*1024
def list_zip(archive, compression, cmd, verbosity, interactive, password=None):
"""List member of a ZIP archive with the zipfile Python module."""
try:
with zipfile.ZipFile(archive, "r") as zfile:
if password:
zfile.setpassword(pwd=password.encode())
for name in zfile.namelist():
if verbosity >= 0:
print(name)
except Exception as err:
msg = "error listing %s: %s" % (archive, err)
raise util.PatoolError(msg)
return None
test_zip = list_zip
def extract_zip(archive, compression, cmd, verbosity, interactive, outdir, password=None):
"""Extract a ZIP archive with the zipfile Python module."""
try:
if password:
password = password.encode()
with zipfile.ZipFile(archive) as zfile:
zfile.extractall(outdir, pwd=password)
except Exception as err:
msg = "error extracting %s: %s" % (archive, err)
raise util.PatoolError(msg)
return None
def create_zip(archive, compression, cmd, verbosity, interactive, filenames):
"""Create a ZIP archive with the zipfile Python module."""
try:
with zipfile.ZipFile(archive, 'w') as zfile:
for filename in filenames:
if os.path.isdir(filename):
write_directory(zfile, filename)
else:
zfile.write(filename)
except Exception as err:
msg = "error creating %s: %s" % (archive, err)
raise util.PatoolError(msg)
return None
def write_directory (zfile, directory):
"""Write recursively all directories and filenames to zipfile instance."""
for dirpath, dirnames, filenames in os.walk(directory):
zfile.write(dirpath)
for filename in filenames:
zfile.write(os.path.join(dirpath, filename))