#! /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 bzrlib.branch from bzrlib.revfile import Revfile from bzrlib.progress import ProgressBar import tempfile import hotshot, hotshot.stats import sys def convert(): pb = ProgressBar() inv_rf = Revfile('revfiles/inventory', 'w') last_text_sha = {} text_rfs = {} b = bzrlib.branch.find_branch('.') revno = 1 rev_history = b.revision_history() last_idx = None for rev_id in rev_history: pb.update('converting inventory', revno, len(rev_history)) inv_xml = b.get_inventory_xml(rev_id).read() new_idx = inv_rf.add(inv_xml, last_idx, compress=False) tree = b.revision_tree(rev_id) inv = tree.inventory # for each file in the inventory, put it into its own revfile for file_id in inv: ie = inv[file_id] if ie.kind != 'file': continue if last_text_sha.get(file_id) == ie.text_sha1: # same as last time continue last_text_sha[file_id] = ie.text_sha1 # new text (though possibly already stored); need to store it text = tree.get_file(file_id).read() if file_id not in text_rfs: text_rfs[file_id] = Revfile('revfiles/' + file_id, 'w') rf = text_rfs[file_id] last = len(rf) if last == 0: last = None else: last -= 1 rf.add(text, last, compress=True) last_idx = new_idx revno += 1 pb.clear() def profile_convert(): prof_f = tempfile.NamedTemporaryFile() prof = hotshot.Profile(prof_f.name) prof.runcall(convert) prof.close() 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) if '-p' in sys.argv[1:]: profile_convert() else: convert()