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  • Committer: John Arbash Meinel
  • Date: 2010-08-10 19:02:29 UTC
  • mto: This revision was merged to the branch mainline in revision 5376.
  • Revision ID: john@arbash-meinel.com-20100810190229-uzdp8oqsa6a67i0n
Cache the lines as extracted if they are used right now.

While digging into the code, it seems that the real peak memory actually
happens during the _add_inventory_mpdiffs_from_serializer, which is
another mpdiff generator that extracts *all* content texts.
We should be able to do better.

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bzrlib/annotate.py
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# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Canonical Ltd
 
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# Copyright (C) 2005-2010 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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import sys
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import time
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from bzrlib.lazy_import import lazy_import
 
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lazy_import(globals(), """
 
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from bzrlib import (
 
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    patiencediff,
 
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    tsort,
 
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    )
 
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""")
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from bzrlib import (
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    errors,
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    osutils,
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    patiencediff,
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    tsort,
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    )
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from bzrlib.config import extract_email_address
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from bzrlib.repository import _strip_NULL_ghosts
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def _get_matching_blocks(old, new):
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    matcher = patiencediff.PatienceSequenceMatcher(None,
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        old, new)
 
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    matcher = patiencediff.PatienceSequenceMatcher(None, old, new)
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    return matcher.get_matching_blocks()
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