----- Original Message -----
From: Johannes Sixt
Date: 9/21/2012 2:50 PM
The trick is to pipe 'git log' output into another process that reads no
more than it needs and exits. Then 'git log' dies from SIGPIPE before it
processed all 1000 commits because its down-stream has gone away.

For example:

   git log --show-notes=p4notes -1000 |
   sed -n -e '/^commit /h' -e '/P4@/{H;g;p;q}'

(The pipeline keeps track of the most recent 'commit' line, and when it
finds the 'P4@' it prints the most recent 'commit' line followed by the
'P4@' line.)

Got it.  I'll try that out now.

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