From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=42490 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OCvX5-0001tk-QB for qemu-devel@nongnu.org; Fri, 14 May 2010 10:06:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OCvX4-0008J0-2I for qemu-devel@nongnu.org; Fri, 14 May 2010 10:06:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:21788) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OCvX3-0008Is-Ph for qemu-devel@nongnu.org; Fri, 14 May 2010 10:06:30 -0400 Date: Fri, 14 May 2010 15:06:25 +0100 From: "Daniel P. Berrange" Subject: Re: [Qemu-devel] Re: [PATCH 1/1] Add -version-simple argument, printing only version number. Message-ID: <20100514140625.GL9282@redhat.com> References: <1273739572-30840-1-git-send-email-Jes.Sorensen@redhat.com> <1273739572-30840-2-git-send-email-Jes.Sorensen@redhat.com> <4BED4E73.2080802@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BED4E73.2080802@linux.vnet.ibm.com> Reply-To: "Daniel P. Berrange" List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: Jes.Sorensen@redhat.com, clalance@redhat.com, qemu-devel@nongnu.org, crobinso@redhat.com On Fri, May 14, 2010 at 08:21:55AM -0500, Anthony Liguori wrote: > On 05/13/2010 03:32 AM, Jes.Sorensen@redhat.com wrote: > >From: Jes Sorensen > > > >Add -version-simple argument for QEMU, printing just the version > >number, without any supporting text. > > > > I'm not a huge fan of the name. > > But what information are we trying to convey? Just major/minor number > or would qemu-kvm also throw some info in there? > > Do version numbers even matter because 0.13 from qemu.git is going to be > a hell of a lot different from 0.13 in RHEL6.x. Version numbers are the last resort. We'll try all other avenues for detecting a feature, before turning to a version number, precisely because of the variance you mention here. When we do toggle something based on a version though, we'll be conservative basing decision off upstream QEMU 0.13 functionality, ignoring what extra bits a distro might have backported (or even disabled). Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|