~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Export a Tree to a non-versioned directory.

"""

import os

from bzrlib.trace import mutter

import tarfile

def tar_exporter(tree, dest, root, compression=None):

    """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".

    """

    from time import time

    now = time()

    compression = str(compression or '')

    if root is None:

        root = get_root_name(dest)

    try:

        ball = tarfile.open(dest, 'w:' + compression)

    except tarfile.CompressionError, e:

        raise BzrError(str(e))

    mutter('export version %r', tree)

    inv = tree.inventory

    for dp, ie in inv.iter_entries():

        mutter("  export {%s} kind %s to %s", ie.file_id, ie.kind, dest)

        item, fileobj = ie.get_tar_item(root, dp, now, tree)

        ball.addfile(item, fileobj)

    ball.close()

def tgz_exporter(tree, dest, root):

    tar_exporter(tree, dest, root, compression='gz')

def tbz_exporter(tree, dest, root):

    tar_exporter(tree, dest, root, compression='bz2')