From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark H Weaver Subject: Re: How to notice when my change breaks something Date: Sun, 11 Feb 2018 17:35:43 -0500 Message-ID: <87a7wfm9xc.fsf@netris.org> References: <20180208040203.20434.7928@vcs0.savannah.gnu.org> <20180208040204.6328E20AD1@vcs0.savannah.gnu.org> <87vaf6d04i.fsf@netris.org> <878tc0o0co.fsf_-_@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:37500) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1el0Eb-0008LX-EM for guix-devel@gnu.org; Sun, 11 Feb 2018 17:36:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1el0EY-0005p8-9e for guix-devel@gnu.org; Sun, 11 Feb 2018 17:36:33 -0500 Received: from world.peace.net ([50.252.239.5]:55558) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1el0EY-0005fU-3R for guix-devel@gnu.org; Sun, 11 Feb 2018 17:36:30 -0500 In-Reply-To: <878tc0o0co.fsf_-_@gmail.com> (Chris Marusich's message of "Sun, 11 Feb 2018 01:07:19 +0100") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Chris Marusich Cc: guix-devel@gnu.org Hi Chris, Chris Marusich writes: > How do you notice when a change breaks something else? You so > frequently notice these things, it almost seems like you're omniscient! > > Do you have an automated mechanism for doing this, or are you manually > checking things frequently? I regularly check Hydra for newly failed packages. To see the most recent evaluations, visit . Each evaluation corresponds to a commit of Guix's git repo. You can compare two evaluations with URLs of the form , which will compare evaluation 109907 to the previous evaluation 109906. It is also often useful to compare to a slightly older evaluation, especially one with an unusually low number of failures, e.g. where 109896 was the most recent evaluation of 'master' with fewer than 1900 failures. Note that hydra.gnu.org is not sufficiently powerful for the work it is currently doing, so it often takes on the order of several *minutes* for the above URLs to load, and sometimes the Nginx front-end will time-out before that happens. Our new build farm is vastly more powerful, but its web interface is currently quite rudimentary and not yet sufficient for the kind of monitoring I do on Hydra. Hope this helps. Mark