~bzr-pqm/bzr/bzr.dev

1185.1.29 by Robert Collins
merge merge tweaks from aaron, which includes latest .dev
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#! /usr/bin/python
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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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"""Experiment in converting existing bzr branches to weaves."""
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import sys
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import bzrlib.branch
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from bzrlib.weave import Weave
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from bzrlib.weavefile import write_weave
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import hotshot
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import tempfile
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def convert():
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    WEAVE_NAME = "test.weave"
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    wf = Weave()
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    toconvert = sys.argv[1]
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    b = bzrlib.branch.find_branch(toconvert)
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    rp = b.relpath(toconvert)
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    print 'converting...'
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    fid = b.read_working_inventory().path2id(rp)
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    last_lines = None
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    parents = set()
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    revno = 0
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    for rev_id in b.revision_history():
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        revno += 1
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        print revno
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        tree = b.revision_tree(rev_id)
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        inv = tree.inventory
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        if fid not in tree:
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            print '  (not present)'
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            continue
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        text = tree.get_file(fid).readlines()
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        if text == last_lines:
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            continue
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        last_lines = text
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        weave_id = wf.add(parents, text)
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        parents = [weave_id]
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        print '  %4d lines' % len(text)
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    write_weave(wf, file(WEAVE_NAME, 'wb'))
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prof_f = tempfile.NamedTemporaryFile()
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prof = hotshot.Profile(prof_f.name)
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prof.runcall(convert) 
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prof.close()
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import hotshot.stats
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stats = hotshot.stats.load(prof_f.name)
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#stats.strip_dirs()
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stats.sort_stats('time')
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## XXX: Might like to write to stderr or the trace file instead but
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## print_stats seems hardcoded to stdout
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stats.print_stats(20)
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