diff options
Diffstat (limited to 'bzrlib/export/zip_exporter.py')
| -rw-r--r-- | bzrlib/export/zip_exporter.py | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/bzrlib/export/zip_exporter.py b/bzrlib/export/zip_exporter.py new file mode 100644 index 0000000..10c6a67 --- /dev/null +++ b/bzrlib/export/zip_exporter.py @@ -0,0 +1,105 @@ +# Copyright (C) 2005, 2006, 2008, 2009, 2010 Canonical Ltd +# +# 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 Street, Fifth Floor, Boston, MA 02110-1301 USA + +"""Export a Tree to a zip file. +""" + +from __future__ import absolute_import + +import os +import stat +import sys +import time +import zipfile + +from bzrlib import ( + osutils, + ) +from bzrlib.export import _export_iter_entries +from bzrlib.trace import mutter + + +# Windows expects this bit to be set in the 'external_attr' section, +# or it won't consider the entry a directory. +ZIP_DIRECTORY_BIT = (1 << 4) +FILE_PERMISSIONS = (0644 << 16) +DIR_PERMISSIONS = (0755 << 16) + +_FILE_ATTR = stat.S_IFREG | FILE_PERMISSIONS +_DIR_ATTR = stat.S_IFDIR | ZIP_DIRECTORY_BIT | DIR_PERMISSIONS + + +def zip_exporter_generator(tree, dest, root, subdir=None, + force_mtime=None, fileobj=None): + """ Export this tree to a new zip file. + + `dest` will be created holding the contents of this tree; if it + already exists, it will be overwritten". + """ + + compression = zipfile.ZIP_DEFLATED + if fileobj is not None: + dest = fileobj + elif dest == "-": + dest = sys.stdout + zipf = zipfile.ZipFile(dest, "w", compression) + try: + for dp, tp, ie in _export_iter_entries(tree, subdir): + file_id = ie.file_id + mutter(" export {%s} kind %s to %s", file_id, ie.kind, dest) + + # zipfile.ZipFile switches all paths to forward + # slashes anyway, so just stick with that. + if force_mtime is not None: + mtime = force_mtime + else: + mtime = tree.get_file_mtime(ie.file_id, tp) + date_time = time.localtime(mtime)[:6] + filename = osutils.pathjoin(root, dp).encode('utf8') + if ie.kind == "file": + zinfo = zipfile.ZipInfo( + filename=filename, + date_time=date_time) + zinfo.compress_type = compression + zinfo.external_attr = _FILE_ATTR + content = tree.get_file_text(file_id, tp) + zipf.writestr(zinfo, content) + elif ie.kind == "directory": + # Directories must contain a trailing slash, to indicate + # to the zip routine that they are really directories and + # not just empty files. + zinfo = zipfile.ZipInfo( + filename=filename + '/', + date_time=date_time) + zinfo.compress_type = compression + zinfo.external_attr = _DIR_ATTR + zipf.writestr(zinfo, '') + elif ie.kind == "symlink": + zinfo = zipfile.ZipInfo( + filename=(filename + '.lnk'), + date_time=date_time) + zinfo.compress_type = compression + zinfo.external_attr = _FILE_ATTR + zipf.writestr(zinfo, tree.get_symlink_target(file_id, tp)) + yield + + zipf.close() + + except UnicodeEncodeError: + zipf.close() + os.remove(dest) + from bzrlib.errors import BzrError + raise BzrError("Can't export non-ascii filenames to zip") |