From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thompson, David" Subject: Re: [PATCH 4/4] environment: Add '--debug' flag. Date: Tue, 19 Jul 2016 15:06:46 -0400 Message-ID: References: <20160719164916.6597-1-david@craven.ch> <20160719164916.6597-5-david@craven.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:49049) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPaLy-0003aN-PR for guix-devel@gnu.org; Tue, 19 Jul 2016 15:06:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bPaLw-0000tx-Ot for guix-devel@gnu.org; Tue, 19 Jul 2016 15:06:49 -0400 Received: from mail-vk0-x236.google.com ([2607:f8b0:400c:c05::236]:35594) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPaLw-0000t6-Kl for guix-devel@gnu.org; Tue, 19 Jul 2016 15:06:48 -0400 Received: by mail-vk0-x236.google.com with SMTP id w127so38056298vkh.2 for ; Tue, 19 Jul 2016 12:06:47 -0700 (PDT) In-Reply-To: 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: David Craven Cc: guix-devel , Guix-devel On Tue, Jul 19, 2016 at 3:02 PM, David Craven wrote: >> 1. I'd like to use overlay fs (like docker) and create a new overlay >> for each phase to easily revert a phase. > > I think this might also help to debug build reproducibility issues, by > finding out which phase is introducing them. (Or is it always > obvious?) > > I wasn't trying to complain, but I think there is some room for > improvement here... I'm not big on overlayfs, it's actually a major source of problems in Docker, but I'm not opposed to exploring it. - Dave