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# 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.
"""
import os
import stat
import sys
import time
import zipfile
from bzrlib import (
osutils,
)
from bzrlib.export import _export_iter_entries
from bzrlib.filters import (
ContentFilterContext,
filtered_output_bytes,
)
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, filtered=False,
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, 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, dp)
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
if filtered:
chunks = tree.get_file_lines(file_id)
filters = tree._content_filter_stack(dp)
context = ContentFilterContext(dp, tree, ie)
contents = filtered_output_bytes(chunks, filters, context)
content = ''.join(contents)
else:
content = tree.get_file_text(file_id)
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))
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")
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