~bzr-pqm/bzr/bzr.dev

#! /usr/bin/python

# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Experiment in converting existing bzr branches to weaves."""

import sys

import bzrlib.branch

from bzrlib.weave import Weave

from bzrlib.weavefile import write_weave

import hotshot

import tempfile

def convert():

    WEAVE_NAME = "test.weave"

    wf = Weave()

    toconvert = sys.argv[1]

    b = bzrlib.branch.find_branch(toconvert)

    rp = b.relpath(toconvert)

    print 'converting...'

    fid = b.read_working_inventory().path2id(rp)

    last_lines = None

    parents = set()

    revno = 0

    for rev_id in b.revision_history():

        revno += 1

        print revno

        tree = b.revision_tree(rev_id)

        inv = tree.inventory

        if fid not in tree:

            print '  (not present)'

            continue

        text = tree.get_file(fid).readlines()

        if text == last_lines:

            continue

        last_lines = text

        weave_id = wf.add(parents, text)

        parents = [weave_id]

        print '  %4d lines' % len(text)

    write_weave(wf, file(WEAVE_NAME, 'wb'))

prof_f = tempfile.NamedTemporaryFile()

prof = hotshot.Profile(prof_f.name)

prof.runcall(convert) 

prof.close()

import hotshot.stats

stats = hotshot.stats.load(prof_f.name)

#stats.strip_dirs()

stats.sort_stats('time')

## XXX: Might like to write to stderr or the trace file instead but

## print_stats seems hardcoded to stdout

stats.print_stats(20)