From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Re: diff against a tag ? Date: Thu, 28 Apr 2005 18:06:26 -0400 Message-ID: <20050428220626.GC15706@redhat.com> References: <20050428200953.GD8514@redhat.com> <7vpswe7hvj.fsf@assigned-by-dhcp.cox.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Junio C Hamano , git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Apr 29 00:02:06 2005 Return-path: Received: from vger.kernel.org ([12.107.209.244]) by ciao.gmane.org with esmtp (Exim 4.43) id 1DRH4z-0008LD-Nl for gcvg-git@gmane.org; Fri, 29 Apr 2005 00:01:54 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262282AbVD1WGt (ORCPT ); Thu, 28 Apr 2005 18:06:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262283AbVD1WGt (ORCPT ); Thu, 28 Apr 2005 18:06:49 -0400 Received: from mx1.redhat.com ([66.187.233.31]:6547 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S262282AbVD1WGd (ORCPT ); Thu, 28 Apr 2005 18:06:33 -0400 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id j3SM6Q3M026462; Thu, 28 Apr 2005 18:06:26 -0400 Received: from devserv.devel.redhat.com (devserv.devel.redhat.com [172.16.58.1]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j3SM6QO10185; Thu, 28 Apr 2005 18:06:26 -0400 Received: from devserv.devel.redhat.com (localhost.localdomain [127.0.0.1]) by devserv.devel.redhat.com (8.12.11/8.12.11) with ESMTP id j3SM6Q0R021040; Thu, 28 Apr 2005 18:06:26 -0400 Received: (from davej@localhost) by devserv.devel.redhat.com (8.12.11/8.12.11/Submit) id j3SM6QSe021033; Thu, 28 Apr 2005 18:06:26 -0400 X-Authentication-Warning: devserv.devel.redhat.com: davej set sender to davej@redhat.com using -f To: Linus Torvalds Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org On Thu, Apr 28, 2005 at 02:01:40PM -0700, Linus Torvalds wrote: > > > On Thu, 28 Apr 2005, Junio C Hamano wrote: > > > > Depends on your definition of today, but with the patch below I > > sent today, you can say "diff-tree -p $tag $(cat .git/HEAD)". > > I think Dave was wondering how to _find_ the tag in the first place, which > is a different issue. Indeed. Sorry if I was unclear. > Right now fsck is the only thing that reports tags that aren't referenced > some other way. Once you know the tag, things are easy - even without > Junio's patch you can just do > > object=$(cat-file tag $tag | sed 's/object //;q') > > and then you can just do > > diff-tree $object $(cat .git/HEAD) > > or whatever you want to do. > > Dave: do a "fsck --tags" in your tree, and it will talk about the tags it > finds. Then you can create files like .git/refs/tags/v2.6.12-rc2 that > contain pointers to those tags.. Groovy. Is it 'THE LAW' that the first one it reports will always be the most recent tag ? Hmm, in a fresh rsync from your kernel tree, I get this.. tagged commit a2755a80f40e5794ddc20e00f781af9d6320fafb (v2.6.12-rc3) in 0397236d43e48e821cce5bbe6a80a1a56bb7cc3a tagged commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (v2.6.12-rc2) in 9e734775f7c22d2f89943ad6c745571f1930105f expect dangling commits - potential heads - due to lack of head information dangling tag 0397236d43e48e821cce5bbe6a80a1a56bb7cc3a dangling commit 9acf6597c533f3d5c991f730c6a1be296679018e dangling tag 9e734775f7c22d2f89943ad6c745571f1930105f Is that last part to be expected ? Dave