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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 non-versioned directory.
"""
import StringIO
import sys
import tarfile
import time
from bzrlib import export, osutils
from bzrlib.export import _export_iter_entries
from bzrlib.filters import (
ContentFilterContext,
filtered_output_bytes,
)
from bzrlib.trace import mutter
def tar_exporter(tree, dest, root, subdir, compression=None, filtered=False,
per_file_timestamps=False):
"""Export this tree to a new tar file.
`dest` will be created holding the contents of this tree; if it
already exists, it will be clobbered, like with "tar -c".
"""
mutter('export version %r', tree)
now = time.time()
compression = str(compression or '')
if dest == '-':
# XXX: If no root is given, the output tarball will contain files
# named '-/foo'; perhaps this is the most reasonable thing.
ball = tarfile.open(None, 'w|' + compression, sys.stdout)
else:
if root is None:
root = export.get_root_name(dest)
# tarfile.open goes on to do 'os.getcwd() + dest' for opening
# the tar file. With dest being unicode, this throws UnicodeDecodeError
# unless we encode dest before passing it on. This works around
# upstream python bug http://bugs.python.org/issue8396
# (fixed in Python 2.6.5 and 2.7b1)
ball = tarfile.open(dest.encode(osutils._fs_enc), 'w:' + compression)
for dp, ie in _export_iter_entries(tree, subdir):
filename = osutils.pathjoin(root, dp).encode('utf8')
item = tarfile.TarInfo(filename)
if per_file_timestamps:
item.mtime = tree.get_file_mtime(ie.file_id, dp)
else:
item.mtime = now
if ie.kind == "file":
item.type = tarfile.REGTYPE
if tree.is_executable(ie.file_id):
item.mode = 0755
else:
item.mode = 0644
if filtered:
chunks = tree.get_file_lines(ie.file_id)
filters = tree._content_filter_stack(dp)
context = ContentFilterContext(dp, tree, ie)
contents = filtered_output_bytes(chunks, filters, context)
content = ''.join(contents)
item.size = len(content)
fileobj = StringIO.StringIO(content)
else:
item.size = ie.text_size
fileobj = tree.get_file(ie.file_id)
elif ie.kind == "directory":
item.type = tarfile.DIRTYPE
item.name += '/'
item.size = 0
item.mode = 0755
fileobj = None
elif ie.kind == "symlink":
item.type = tarfile.SYMTYPE
item.size = 0
item.mode = 0755
item.linkname = ie.symlink_target
fileobj = None
else:
raise BzrError("don't know how to export {%s} of kind %r" %
(ie.file_id, ie.kind))
ball.addfile(item, fileobj)
ball.close()
def tgz_exporter(tree, dest, root, subdir, filtered=False,
per_file_timestamps=False):
tar_exporter(tree, dest, root, subdir, compression='gz',
filtered=filtered, per_file_timestamps=per_file_timestamps)
def tbz_exporter(tree, dest, root, subdir, filtered=False,
per_file_timestamps=False):
tar_exporter(tree, dest, root, subdir, compression='bz2',
filtered=filtered, per_file_timestamps=per_file_timestamps)
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