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

#!/bin/sh
HG=hg
"$HG" init
mkdir b
echo 'Bouncy' >b/bouncy
echo 'tricycle' >b/vehicle
"$HG" add b/bouncy
"$HG" add b/vehicle
"$HG" commit -m 'Adding bouncy'
echo 'bouncy' >>b/bouncy
"$HG" commit -m 'Making it bouncier'
"$HG" update -C 0
echo 'stationary' >>b/vehicle
"$HG" commit -m 'Clarifying the vehicle.'
"$HG" update -C 1
chmod a-w b/vehicle
"$HG" update -m 2 2>&1 | sed 's|^\(.*[ 	]\).*/\([^/]*/[^/]*/[^/]*\)$|\1\2|g'