~bzr-pqm/bzr/bzr.dev

1185.31.12 by John Arbash Meinel
Refactored the export code to make it easier to add new export formats.
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# Copyright (C) 2005 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Export a Tree to a non-versioned directory.
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"""
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import os
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from bzrlib.trace import mutter
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import zipfile
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def zip_exporter(tree, dest, root):
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    """ Export this tree to a new zip file.
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    `dest` will be created holding the contents of this tree; if it
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    already exists, it will be overwritten".
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    """
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    import time
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    now = time.localtime()[:6]
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    mutter('export version %r', tree)
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    compression = zipfile.ZIP_DEFLATED
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    zipf = zipfile.ZipFile(dest, "w", compression)
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    inv = tree.inventory
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    try:
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        for dp, ie in inv.iter_entries():
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            file_id = ie.file_id
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            mutter("  export {%s} kind %s to %s", file_id, ie.kind, dest)
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            if ie.kind == "file": 
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                zinfo = zipfile.ZipInfo(
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                            filename=str(os.path.join(root, dp)),
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                            date_time=now)
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                zinfo.compress_type = compression
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                zipf.writestr(zinfo, tree.get_file_text(file_id))
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            elif ie.kind == "directory":
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                zinfo = zipfile.ZipInfo(
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                            filename=str(os.path.join(root, dp)+os.sep),
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                            date_time=now)
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                zinfo.compress_type = compression
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                zipf.writestr(zinfo,'')
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            elif ie.kind == "symlink":
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                zinfo = zipfile.ZipInfo(
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                            filename=str(os.path.join(root, dp+".lnk")),
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                            date_time=now)
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                zinfo.compress_type = compression
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                zipf.writestr(zinfo, ie.symlink_target)
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        zipf.close()
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    except UnicodeEncodeError:
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        zipf.close()
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        os.remove(dest)
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        from bzrlib.errors import BzrError
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        raise BzrError("Can't export non-ascii filenames to zip")
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