~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2008 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

import sys

import tarfile

import time

from bzrlib import errors, export, osutils

from bzrlib.export import _export_iter_entries

from bzrlib.trace import mutter

def tar_exporter(tree, dest, root, subdir, 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".

    """

    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)

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

    for dp, ie in _export_iter_entries(tree, subdir):

        filename = osutils.pathjoin(root, dp).encode('utf8')

        item = tarfile.TarInfo(filename)

        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

            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):

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

def tbz_exporter(tree, dest, root, subdir):

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