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#!/usr/bin/env python3
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# Undump a dump from dumprevlog
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# $ hg init
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# $ undumprevlog < repo.dump
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import sys
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from mercurial.node import bin
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from mercurial import (
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encoding,
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revlog,
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transaction,
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vfs as vfsmod,
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)
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from mercurial.utils import procutil
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from mercurial.revlogutils import (
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constants as revlog_constants,
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)
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for fp in (sys.stdin, sys.stdout, sys.stderr):
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procutil.setbinary(fp)
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opener = vfsmod.vfs(b'.', False)
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tr = transaction.transaction(
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sys.stderr.write, opener, {b'store': opener}, b"undump.journal"
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)
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while True:
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l = sys.stdin.readline()
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if not l:
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break
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if l.startswith("file:"):
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f = encoding.strtolocal(l[6:-1])
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assert f.endswith(b'.i')
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r = revlog.revlog(
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opener,
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target=(revlog_constants.KIND_OTHER, b'undump-revlog'),
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radix=f[:-2],
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)
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procutil.stdout.write(b'%s\n' % f)
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elif l.startswith("node:"):
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n = bin(l[6:-1])
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elif l.startswith("linkrev:"):
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lr = int(l[9:-1])
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elif l.startswith("parents:"):
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p = l[9:-1].split()
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p1 = bin(p[0])
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p2 = bin(p[1])
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elif l.startswith("length:"):
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length = int(l[8:-1])
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sys.stdin.readline() # start marker
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d = encoding.strtolocal(sys.stdin.read(length))
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sys.stdin.readline() # end marker
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r.addrevision(d, tr, lr, p1, p2)
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tr.close()
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