diff options
Diffstat (limited to 'port/tarball.py')
| -rw-r--r-- | port/tarball.py | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/port/tarball.py b/port/tarball.py deleted file mode 100644 index 9e842b9..0000000 --- a/port/tarball.py +++ /dev/null @@ -1,159 +0,0 @@ -# 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 2 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, write to the Free Software -# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -"""Simplify tarfile module usage""" - -import os -import time -import tarfile -import cStringIO -import gtk -import zipfile -import tempfile -import shutil - -class TarballError(Exception): - """Base Tarball exception.""" - pass - -class BadDataTypeError(TarballError): - """Exception for unsupported data type in read/write methods.""" - pass - -class Tarball: - """ - Wrap standart tarfile module to simplify read/write operations with - most popular data types. - - In read mode Tarball can load zip files as well. - - Supprted types: - - * string - * gtk.gdk.Pixbuf - - Write usage: - - # create Tarball object - # to see all supported modes use - # http://docs.python.org/library/tarfile.html#tarfile.open - tar = Tarball(tarfile, 'w') - - # write string to file in tarball - tar.write('name within tarball', 'string to write') - - # write pixbuf to file in tarball - tar.write('name within tarball', pixbuf_object) - - # save and close tarball file - tar.close() - - Read usage: - - # create Tarball object - tar = Tarball(tarfile) - - # read content of file in tarball to string - str_content = tar.read('name within tarball') - - # read content of file in tarball to pixbuf object - pixbuf_content = tar.read_pixbuf('name within tarball') - """ - - def __init__(self, name=None, mode='r', mtime=None): - if not mode.startswith('r') or tarfile.is_tarfile(name): - self.__tar = tarfile.TarFile(name=name, mode=mode) - else: - # convert for tar - - if not zipfile.is_zipfile(name): - raise tarfile.ReadError() - - try: - tmp_dir = tempfile.mkdtemp() - tmp_fd, tmp_name = tempfile.mkstemp() - tmp_fo = os.fdopen(tmp_fd, 'w') - - zip = zipfile.ZipFile(name) - zip.extractall(tmp_dir) - - tar = tarfile.TarFile(fileobj=tmp_fo, mode='w') - tar.add(tmp_dir, arcname='') - tar.close() - - self.__tar = tarfile.TarFile(name=tmp_name, mode=mode) - finally: - tmp_fo.close() - os.unlink(tmp_name) - shutil.rmtree(tmp_dir) - - if mtime: - self.mtime = mtime - else: - self.mtime = time.time() - - def close(self): - """Save(if 'r' mode was given) and close tarball file.""" - self.__tar.close() - - def getnames(self): - """Return names of members sorted by creation order.""" - return self.__tar.getnames() - - def read(self, arcname): - """Returns sring with content of given file from tarball.""" - file_o = self.__tar.extractfile(arcname.encode('utf8')) - if not file_o: - return None - out = file_o.read() - file_o.close() - return out - - def read_pixbuf(self, arcname): - """Returns pixbuf object of given file from tarball.""" - loader = gtk.gdk.pixbuf_loader_new_with_mime_type('image/png') - loader.write(self.read(arcname)) - loader.close() - return loader.get_pixbuf() - - def write(self, arcname, data, mode=0644): - """ - Stores given object to file in tarball. - Raises BadDataTypeError exception If data type isn't supported. - """ - info = tarfile.TarInfo(arcname.encode('utf8')) - info.mode = mode - info.mtime = self.mtime - - if isinstance(data, str): - self.__write_str(info, data) - elif isinstance(data, gtk.gdk.Pixbuf): - self.__write_pixbuf(info, data) - else: - raise BadDataTypeError() - - def __write_str(self, info, data): - info.size = len(data) - self.__tar.addfile(info, cStringIO.StringIO(data)) - - def __write_pixbuf(self, info, data): - def push(pixbuf, buffer): - buffer.write(pixbuf) - - buffer = cStringIO.StringIO() - data.save_to_callback(push, 'png', user_data=buffer) - - info.size = buffer.tell() - buffer.seek(0) - self.__tar.addfile(info, buffer) |