From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff King Subject: Re: Quickly searching for a note Date: Fri, 21 Sep 2012 19:37:24 -0400 Message-ID: <20120921233723.GA29433@sigill.intra.peff.net> References: <505C7C80.3000700@workspacewhiz.com> <7vy5k370n7.fsf@alter.siamese.dyndns.org> <505CB21E.4040607@workspacewhiz.com> <7vtxur3zxi.fsf@alter.siamese.dyndns.org> <505CCD2A.8020003@workspacewhiz.com> <505CD2FA.80200@kdbg.org> <505CD7D0.2000505@workspacewhiz.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Johannes Sixt , Junio C Hamano , "git@vger.kernel.org" To: Joshua Jensen X-From: git-owner@vger.kernel.org Sat Sep 22 01:37:40 2012 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TFCmu-0004ek-18 for gcvg-git-2@plane.gmane.org; Sat, 22 Sep 2012 01:37:36 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753421Ab2IUXh1 (ORCPT ); Fri, 21 Sep 2012 19:37:27 -0400 Received: from 75-15-5-89.uvs.iplsin.sbcglobal.net ([75.15.5.89]:53863 "EHLO peff.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752541Ab2IUXh0 (ORCPT ); Fri, 21 Sep 2012 19:37:26 -0400 Received: (qmail 11887 invoked by uid 107); 21 Sep 2012 23:37:52 -0000 Received: from sigill.intra.peff.net (HELO sigill.intra.peff.net) (10.0.0.7) (smtp-auth username relayok, mechanism cram-md5) by peff.net (qpsmtpd/0.84) with ESMTPA; Fri, 21 Sep 2012 19:37:52 -0400 Received: by sigill.intra.peff.net (sSMTP sendmail emulation); Fri, 21 Sep 2012 19:37:24 -0400 Content-Disposition: inline In-Reply-To: <505CD7D0.2000505@workspacewhiz.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Fri, Sep 21, 2012 at 03:10:40PM -0600, Joshua Jensen wrote: > ----- 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. I think people have provided sane techniques for doing this with a pipeline. But there is really no reason not to have --grep-notes, just as we have --grep. It's simply that nobody has implemented it yet (and nobody is working on it as far as I know). It would actually be a fairly simple feature to add if somebody wanted to get their feet wet with git. -Peff