~bzr-pqm/bzr/bzr.dev

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# 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 zipfile

def zip_exporter(tree, dest, root):
    """ 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".
    """
    import time

    now = time.localtime()[:6]
    mutter('export version %r', tree)

    compression = zipfile.ZIP_DEFLATED
    zipf = zipfile.ZipFile(dest, "w", compression)

    inv = tree.inventory

    try:
        for dp, ie in inv.iter_entries():

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

            if ie.kind == "file": 
                zinfo = zipfile.ZipInfo(
                            filename=str(os.path.join(root, dp)),
                            date_time=now)
                zinfo.compress_type = compression
                zipf.writestr(zinfo, tree.get_file_text(file_id))
            elif ie.kind == "directory":
                zinfo = zipfile.ZipInfo(
                            filename=str(os.path.join(root, dp)+os.sep),
                            date_time=now)
                zinfo.compress_type = compression
                zipf.writestr(zinfo,'')
            elif ie.kind == "symlink":
                zinfo = zipfile.ZipInfo(
                            filename=str(os.path.join(root, dp+".lnk")),
                            date_time=now)
                zinfo.compress_type = compression
                zipf.writestr(zinfo, ie.symlink_target)

        zipf.close()

    except UnicodeEncodeError:
        zipf.close()
        os.remove(dest)
        from bzrlib.errors import BzrError
        raise BzrError("Can't export non-ascii filenames to zip")