From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: Re: It's not yet time to anoint git, or anything else Date: Wed, 02 Jan 2008 10:36:15 -0600 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <86wsqs18xs.fsf@lifelogs.com> References: <20080102132458.387D9830B03@snark.thyrsus.com> <86prwk2udp.fsf@lifelogs.com> <87k5msth03.fsf@member.fsf.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1199291736 22959 80.91.229.12 (2 Jan 2008 16:35:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 2 Jan 2008 16:35:36 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jan 02 17:35:56 2008 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JA6ZP-0007y9-Mz for ged-emacs-devel@m.gmane.org; Wed, 02 Jan 2008 17:35:56 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JA6Z3-0000l7-Kx for ged-emacs-devel@m.gmane.org; Wed, 02 Jan 2008 11:35:33 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JA6Z0-0000kR-1j for emacs-devel@gnu.org; Wed, 02 Jan 2008 11:35:30 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JA6Yy-0000ii-9r for emacs-devel@gnu.org; Wed, 02 Jan 2008 11:35:29 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JA6Yy-0000id-5x for emacs-devel@gnu.org; Wed, 02 Jan 2008 11:35:28 -0500 Original-Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1JA6Yx-0006Fm-Ve for emacs-devel@gnu.org; Wed, 02 Jan 2008 11:35:28 -0500 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JA6Yu-0007Bm-QB for emacs-devel@gnu.org; Wed, 02 Jan 2008 16:35:24 +0000 Original-Received: from 38.98.147.130 ([38.98.147.130]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 02 Jan 2008 16:35:24 +0000 Original-Received: from tzz by 38.98.147.130 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 02 Jan 2008 16:35:24 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 50 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 38.98.147.130 X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" User-Agent: Gnus/5.110007 (No Gnus v0.7) Emacs/23.0.50 (gnu/linux) Cancel-Lock: sha1:uYi00oj42/HwQNOXbo52KRr8EYI= X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:85922 Archived-At: On Wed, 02 Jan 2008 15:54:36 +0100 Tassilo Horn wrote: TH> Ted Zlatanov writes: >> Has there ever been an ELisp-based VCS? Should we at least consider >> it? The advantages are significant for this group of developers, and >> it would certainly benefit other users. The major disadvantage >> (besides having to write the code), I imagine, is incompatibility with >> other VCSs, and that can be addressed by a bridge to CVS/Git/Arch/etc >> as deemed appropriate (similar to the git-svn bridge). TH> I'd say that this would be a monster-job where we simply don't have the TH> man-power to do that. And I don't see what those significant advantages TH> would be. Could you elaborate on that? - clean VC mode integration - no extra utilities - self-contained, extensible code - designed to meet the developers' needs - most of us like ELisp better than the other languages used to implement VCSs I'm sure we could come up with more, but I thought the above were obvious so I didn't list them explicitly. TH> IMO an elisp solution would bring at least those drawbacks: TH> - huge effort to write and maintain it I don't think the effort is *huge* since there's so many existing VCS implementations. It's certainly not trivial and I already mentioned that writing the code was a major disadvantage. TH> - since we get it right and reliable it may take very long I didn't suggest it was an easy path, I only asked if we should consider it. So far everyone thinks we shouldn't, and that's a valid answer. I am glad we at least discussed it. TH> - worse performance than a highly optimized C solution This is always a concern with ELisp code, and fortunately Emacs supports linking to C functions and libraries when needed. TH> - since emacs is single-threaded any VC operation would block emacs Yes, that's a significant drawback with any large-scale code implemented in Emacs. Thanks Ted