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#!/usr/bin/env python2.4
from itertools import izip
import sys
import time
from bzrlib.workingtree import WorkingTree
from multiparent import MultiVersionedFile
single_parent = False
if len(sys.argv) > 1 and len(sys.argv) < 4:
wt, path = WorkingTree.open_containing(sys.argv[-1])
if len(sys.argv) == 3:
assert sys.argv[1] == '--single'
single_parent = True
else:
print >> sys.stderr, 'Usage: mpknit [--single] FILENAME'
sys.exit(3)
bt = wt.branch.repository.revision_tree(wt.last_revision())
file_id = wt.path2id(path)
file_weave = bt.get_weave(file_id)
file_weave.enable_cache()
vf = MultiVersionedFile()
ancestry = set(file_weave.get_ancestry([bt.inventory[file_id].revision]))
files = dict(izip(ancestry, file_weave.get_line_list(ancestry)))
while len(ancestry) > 0:
added = set()
for revision in ancestry:
parents = file_weave.get_parents(revision)
if [p for p in parents if p not in vf._diffs] != []:
continue
lines = files[revision]
vf.add_version(lines, revision, parents)
added.add(revision)
ancestry = [r for r in ancestry if r not in added]
vf.clear_cache()
if False:
for revision_id in file_weave.get_ancestry(
[bt.inventory[file_id].revision]):
if vf.get_line_list([revision_id])[0] != \
file_weave.get_lines(revision_id):
open(revision_id + '.old', 'wb').writelines(
file_weave.get_lines(revision_id))
open(revision_id + '.new', 'wb').writelines(
vf.get_line_list(revision_id)[0])
if True:
revisions = file_weave.get_ancestry(
[bt.inventory[file_id].revision])[-1:]
from bzrlib.lsprof import profile
ret, stats = profile(vf.get_line_list, revisions)
stats.sort()
stats.pprint()
start = time.clock()
for x in range(1000):
vf.clear_cache()
vf.get_line_list(revisions)
print time.clock() - start
start = time.clock()
for x in range(1000):
file_weave.get_line_list(revisions)
print time.clock() - start
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