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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-09-03 22:30:56 UTC
  • mfrom: (3644.2.13 index_builder_cleanup)
  • Revision ID: pqm@pqm.ubuntu.com-20080903223056-b108iytb38xkznci
(jam) Streamline BTreeBuilder.add_node et al to make btree creation
        faster.

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bzrlib/store/text.py
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# Copyright (C) 2005, 2006, 2008, 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2005 Canonical Ltd
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#
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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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#
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""A store that keeps the full text of every version.
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do any sort of delta compression.
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"""
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from __future__ import absolute_import
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import gzip
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import os
 
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from cStringIO import StringIO
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from bzrlib import osutils
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from bzrlib.errors import BzrError, NoSuchFile, FileExists
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    def _add_compressed(self, fn, f):
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        from cStringIO import StringIO
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        from bzrlib.osutils import pumpfile
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        if isinstance(f, basestring):
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            f = StringIO(f)
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        sio = StringIO()
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        gf = gzip.GzipFile(mode='wb', fileobj=sio)
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        # if pumpfile handles files that don't fit in ram,
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        # so buffer them in a StringIO instead
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        if getattr(f, 'tell', None) is not None:
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            return gzip.GzipFile(mode='rb', fileobj=f)
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        try:
 
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        else:
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            from cStringIO import StringIO
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            sio = StringIO(f.read())
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            return gzip.GzipFile(mode='rb', fileobj=sio)
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        finally:
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            f.close()