def test_written_detection(self):
# Test detection of weave file corruption.
#
# Make sure that we can detect if a weave file has
# been corrupted. This doesn't test all forms of corruption,
# but it at least helps verify the data you get, is what you want.
from cStringIO import StringIO
w = Weave()
w.add_lines('v1', [], ['hello\n'])
w.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
tmpf = StringIO()
write_weave(w, tmpf)
# Because we are corrupting, we need to make sure we have the exact text
self.assertEqual('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n',
tmpf.getvalue())
# Change a single letter
tmpf = StringIO('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. There\n}\nW\n')
w = read_weave(tmpf)
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
# Change the sha checksum
tmpf = StringIO('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 f0f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n')
w = read_weave(tmpf)
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
def test_written_detection(self):
# Test detection of weave file corruption.
#
# Make sure that we can detect if a weave file has
# been corrupted. This doesn't test all forms of corruption,
# but it at least helps verify the data you get, is what you want.
from cStringIO import StringIO
w = Weave()
w.add_lines('v1', [], ['hello\n'])
w.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
tmpf = StringIO()
write_weave(w, tmpf)
# Because we are corrupting, we need to make sure we have the exact text
self.assertEquals('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n',
tmpf.getvalue())
# Change a single letter
tmpf = StringIO('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. There\n}\nW\n')
w = read_weave(tmpf)
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
# Change the sha checksum
tmpf = StringIO('# bzr weave file v5\n'
'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
'i 0\n1 f0f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n')
w = read_weave(tmpf)
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
def check_read_write(self, k):
"""Check the weave k can be written & re-read."""
from tempfile import TemporaryFile
tf = TemporaryFile()
write_weave(k, tf)
tf.seek(0)
k2 = read_weave(tf)
if k != k2:
tf.seek(0)
self.log('serialized weave:')
self.log(tf.read())
self.log('')
self.log('parents: %s' % (k._parents == k2._parents))
self.log(' %r' % k._parents)
self.log(' %r' % k2._parents)
self.log('')
self.fail('read/write check failed')
def check_read_write(self, k):
"""Check the weave k can be written & re-read."""
from tempfile import TemporaryFile
tf = TemporaryFile()
write_weave(k, tf)
tf.seek(0)
k2 = read_weave(tf)
if k != k2:
tf.seek(0)
self.log('serialized weave:')
self.log(tf.read())
self.log('')
self.log('parents: %s' % (k._parents == k2._parents))
self.log(' %r' % k._parents)
self.log(' %r' % k2._parents)
self.log('')
self.fail('read/write check failed')
def main(argv):
import sys
import os
try:
import bzrlib
except ImportError:
# in case we're run directly from the subdirectory
sys.path.append('..')
import bzrlib
from bzrlib.weavefile import write_weave, read_weave
from bzrlib.progress import ProgressBar
try:
import psyco
psyco.full()
except ImportError:
pass
if len(argv) < 2:
usage()
return 0
cmd = argv[1]
def readit():
return read_weave(file(argv[2], 'rb'))
if cmd == 'help':
usage()
elif cmd == 'add':
w = readit()
# at the moment, based on everything in the file
name = argv[3]
parents = map(int, argv[4:])
lines = sys.stdin.readlines()
ver = w.add(name, parents, lines)
write_weave(w, file(argv[2], 'wb'))
print 'added version %r %d' % (name, ver)
elif cmd == 'init':
fn = argv[2]
if os.path.exists(fn):
raise IOError("file exists")
w = Weave()
write_weave(w, file(fn, 'wb'))
elif cmd == 'get': # get one version
w = readit()
sys.stdout.writelines(w.get_iter(int(argv[3])))
elif cmd == 'diff':
w = readit()
fn = argv[2]
v1, v2 = map(int, argv[3:5])
lines1 = w.get(v1)
lines2 = w.get(v2)
diff_gen = bzrlib.patiencediff.unified_diff(lines1, lines2,
'%s version %d' % (fn, v1),
'%s version %d' % (fn, v2))
sys.stdout.writelines(diff_gen)
elif cmd == 'annotate':
w = readit()
# newline is added to all lines regardless; too hard to get
# reasonable formatting otherwise
lasto = None
for origin, text in w.annotate(int(argv[3])):
text = text.rstrip('\r\n')
if origin == lasto:
print ' | %s' % (text)
else:
print '%5d | %s' % (origin, text)
lasto = origin
elif cmd == 'toc':
weave_toc(readit())
elif cmd == 'stats':
weave_stats(argv[2], ProgressBar())
elif cmd == 'check':
w = readit()
pb = ProgressBar()
w.check(pb)
pb.clear()
print '%d versions ok' % w.num_versions()
elif cmd == 'inclusions':
w = readit()
print ' '.join(map(str, w.inclusions([int(argv[3])])))
elif cmd == 'parents':
w = readit()
print ' '.join(map(str, w._parents[int(argv[3])]))
elif cmd == 'plan-merge':
# replaced by 'bzr weave-plan-merge'
w = readit()
for state, line in w.plan_merge(int(argv[3]), int(argv[4])):
if line:
print '%14s | %s' % (state, line),
elif cmd == 'merge':
# replaced by 'bzr weave-merge-text'
w = readit()
p = w.plan_merge(int(argv[3]), int(argv[4]))
sys.stdout.writelines(w.weave_merge(p))
else:
raise ValueError('unknown command %r' % cmd)
def main(argv):
import sys
import os
try:
import bzrlib
except ImportError:
# in case we're run directly from the subdirectory
sys.path.append('..')
import bzrlib
from bzrlib.weavefile import write_weave, read_weave
from bzrlib.progress import ProgressBar
try:
import psyco
psyco.full()
except ImportError:
pass
if len(argv) < 2:
usage()
return 0
cmd = argv[1]
def readit():
return read_weave(file(argv[2], 'rb'))
if cmd == 'help':
usage()
elif cmd == 'add':
w = readit()
# at the moment, based on everything in the file
name = argv[3]
parents = map(int, argv[4:])
lines = sys.stdin.readlines()
ver = w.add(name, parents, lines)
write_weave(w, file(argv[2], 'wb'))
print 'added version %r %d' % (name, ver)
elif cmd == 'init':
fn = argv[2]
if os.path.exists(fn):
raise IOError("file exists")
w = Weave()
write_weave(w, file(fn, 'wb'))
elif cmd == 'get': # get one version
w = readit()
sys.stdout.writelines(w.get_iter(int(argv[3])))
elif cmd == 'diff':
w = readit()
fn = argv[2]
v1, v2 = map(int, argv[3:5])
lines1 = w.get(v1)
lines2 = w.get(v2)
diff_gen = bzrlib.patiencediff.unified_diff(lines1, lines2,
'%s version %d' % (fn, v1),
'%s version %d' % (fn, v2))
sys.stdout.writelines(diff_gen)
elif cmd == 'annotate':
w = readit()
# newline is added to all lines regardless; too hard to get
# reasonable formatting otherwise
lasto = None
for origin, text in w.annotate(int(argv[3])):
text = text.rstrip('\r\n')
if origin == lasto:
print ' | %s' % (text)
else:
print '%5d | %s' % (origin, text)
lasto = origin
elif cmd == 'toc':
weave_toc(readit())
elif cmd == 'stats':
weave_stats(argv[2], ProgressBar())
elif cmd == 'check':
w = readit()
pb = ProgressBar()
w.check(pb)
pb.clear()
print '%d versions ok' % w.num_versions()
elif cmd == 'inclusions':
w = readit()
print ' '.join(map(str, w.inclusions([int(argv[3])])))
elif cmd == 'parents':
w = readit()
print ' '.join(map(str, w._parents[int(argv[3])]))
elif cmd == 'plan-merge':
# replaced by 'bzr weave-plan-merge'
w = readit()
for state, line in w.plan_merge(int(argv[3]), int(argv[4])):
if line:
print '%14s | %s' % (state, line),
elif cmd == 'merge':
# replaced by 'bzr weave-merge-text'
w = readit()
p = w.plan_merge(int(argv[3]), int(argv[4]))
sys.stdout.writelines(w.weave_merge(p))
else:
raise ValueError('unknown command %r' % cmd)
