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#!/usr/bin/python
import functools
import re
import sys
mangler = []
mangler.append(functools.partial(
re.compile(r"^\(paludis (0.1.*)\)$", re.M|re.I).sub,
r"Package-Manager: paludis-\1/"))
mangler.append(functools.partial(
re.compile(r"^\(portage version: (.*)\)$", re.M|re.I).sub,
r"Package-Manager: portage-\1"))
write = sys.stdout.write
source = open(sys.argv[1]) if len(sys.argv) > 1 else sys.stdin
write('reset refs/heads/master\n')
while True:
x = source.readline()
if not x:
break
chunked = x.split()
if not chunked:
write(x)
continue
elif chunked[0] in ('reset', 'from'):
continue
elif chunked[0] == 'commit':
write('commit refs/heads/master\n')
continue
elif chunked[0] != 'data':
write(x)
continue
assert len(chunked) == 2
size = int(chunked[1])
data = source.read(size)
assert len(data) == size
for func in mangler:
data = func(data)
write("data %i\n%s" % (len(data), data))
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