Ignore EPIPE in pipefilter This hides the following traceback (there's a race condition involved, so you may have to try a few times to hit it): $ hg sign --key key-that-does-not-exist Signing 2062:4bad92f4ea65 gpg: skipped "key-that-does-not-exist": secret key not available gpg: signing failed: secret key not available Exception in thread Thread-1: Traceback (most recent call last): File "threading.py", line 442, in __bootstrap self.run() File "threading.py", line 422, in run self.__target(*self.__args, **self.__kwargs) File "mercurial/util.py", line 24, in writer pin.close() IOError: [Errno 32] Broken pipe abort: Error while signing

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#!/usr/bin/env python

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import sys, os

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from mercurial import hg

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f = sys.argv[1]

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r1 = hg.revlog(open, f + ".i", f + ".d")

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r2 = hg.revlog(open, f + ".i2", f + ".d2")

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tr = hg.transaction(open, "journal")

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for i in xrange(r1.count()):

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    n = r1.node(i)

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    p1, p2 = r1.parents(n)

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    l = r1.linkrev(n)

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    t = r1.revision(n)

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    n2 = r2.addrevision(t, tr, l, p1, p2)

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tr.close()

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os.rename(f + ".i", f + ".i.old")

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os.rename(f + ".d", f + ".d.old")

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os.rename(f + ".i2", f + ".i")

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os.rename(f + ".d2", f + ".d")