From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27606 invoked by alias); 26 Dec 2019 11:04:47 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 27598 invoked by uid 89); 26 Dec 2019 11:04:46 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.1 spammy=H*f:sk:orh81n1, H*MI:sk:orh81n1, H*i:sk:orh81n1, tips X-HELO: digraph.polyomino.org.uk Received: from digraph.polyomino.org.uk (HELO digraph.polyomino.org.uk) (81.187.227.50) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 26 Dec 2019 11:04:44 +0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.90_1) (envelope-from ) id 1ikQwP-00074b-3P; Thu, 26 Dec 2019 11:04:29 +0000 Date: Thu, 26 Dec 2019 11:04:00 -0000 From: Joseph Myers To: Alexandre Oliva cc: "Eric S. Raymond" , Jeff Law , Segher Boessenkool , Mark Wielaard , Maxim Kuvyrkov , "Richard Earnshaw (lists)" , gcc@gcc.gnu.org Subject: Re: Proposal for the transition timetable for the move to GIT In-Reply-To: Message-ID: References: <20191216133632.GC3152@gate.crashing.org> <20191216135451.GA3142@thyrsus.com> <20191216140514.GD3152@gate.crashing.org> <20191216153649.GE3152@gate.crashing.org> <20191225120747.GA96669@thyrsus.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SW-Source: 2019-12/txt/msg00419.txt.bz2 On Thu, 26 Dec 2019, Alexandre Oliva wrote: > Could make it a requirement that at least the commits associated with > head branches and published tags compare equal in both conversions, or > that differences are known, understood and accepted, before we switch > over to either one? Going over all corresponding commits might be too The checks I run on every conversion with reposurgeon include checking the tree contents at the tip of every (non-deleted) branch and tag agree with SVN (this check now includes checking that execute permissions match). Empty directories are removed from SVN checkouts before that comparison; .gitignore files are ignored because of those generated automatically by reposurgeon from svn:ignore properties (but the conversion is set to prefer .gitignore files checked into SVN where they exist, and empirically that works as expected, so differences relating to automatically-generated .gitignore files are only relevant to older branches). Two branches (c++-modules and melt-branch) have some files with SVN keyword expansion enabled, which causes expected differences in such comparisons. The scripts used for those checks are checked into the gcc-conversion repository; the input needed is a mapping from SVN branch / tag paths to git refs (along with the SVN revision number the branch tips should match). The main thing that consumes time in the checks is switching SVN checkouts to a different branch. -- Joseph S. Myers jsm@polyomino.org.uk