From owner-ctm-users@FreeBSD.ORG Tue Dec 27 12:38:20 2011 Return-Path: Delivered-To: ctm-users@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E198E106564A for ; Tue, 27 Dec 2011 12:38:20 +0000 (UTC) (envelope-from jhs@berklix.com) Received: from tower.berklix.org (tower.berklix.org [83.236.223.114]) by mx1.freebsd.org (Postfix) with ESMTP id 54F418FC14 for ; Tue, 27 Dec 2011 12:38:19 +0000 (UTC) Received: from mart.js.berklix.net (p57BCFE6B.dip.t-dialin.net [87.188.254.107]) (authenticated bits=0) by tower.berklix.org (8.14.2/8.14.2) with ESMTP id pBRCcHG1022038; Tue, 27 Dec 2011 12:38:18 GMT (envelope-from jhs@berklix.com) Received: from fire.js.berklix.net (fire.js.berklix.net [192.168.91.41]) by mart.js.berklix.net (8.14.3/8.14.3) with ESMTP id pBRCc2sQ058927; Tue, 27 Dec 2011 13:38:04 +0100 (CET) (envelope-from jhs@berklix.com) Received: from fire.js.berklix.net (localhost [127.0.0.1]) by fire.js.berklix.net (8.14.4/8.14.4) with ESMTP id pBRCbooj079986; Tue, 27 Dec 2011 13:37:56 +0100 (CET) (envelope-from jhs@fire.js.berklix.net) Message-Id: <201112271237.pBRCbooj079986@fire.js.berklix.net> To: Stephen Montgomery-Smith From: "Julian H. Stacey" Organization: http://www.berklix.com BSD Unix Linux Consultancy, Munich Germany User-agent: EXMH on FreeBSD http://www.berklix.com/free/ X-URL: http://www.berklix.com In-reply-to: Your message "Mon, 26 Dec 2011 20:07:50 CST." <4EF92876.2080508@missouri.edu> Date: Tue, 27 Dec 2011 13:37:50 +0100 Sender: jhs@berklix.com Cc: "ctm-users@freebsd.org" Subject: Re: svn-cur X-BeenThere: ctm-users@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CTM User discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Dec 2011 12:38:21 -0000 Hi Stephen > On 12/26/2011 07:55 PM, Julian H. Stacey wrote: > >> Suggestion: > >> Maybe you might want a 5 digit numeric, not 4 digit, like cvs-cur ? > >> (as eg there's often more cvs deltas than other deltas) > > > > Suggestion: > > Also use same convention as before in naming with xEmpty to indicate a base > > ctm (delta) rather than just a differential ctm (delta). > > mv svn-cur.0001.xz svn-cur.00001xEmpty.xz > > mv svn-cur.0002.xz svn-cur.00002.xz > > The convention that svn-cur.0001 does not have xEmpty in it is a > convention that has been followed before. Look at src-9. It is how the > mkCTM software works. OK, thanks, I had wondered if it was a mistake. I hadn't noticed the example of src-9 till now. The name 'Empty' was a useful marker to distinguish & seperate a full from a differential file.... We're now up to src-9.0077.gz Question: Might there may be trouble when we get to src-9.0100.gz ? A double bid for that file name: - Recipient hosts will want a normal small incremental update. - Sender & ftp mirror servers, that same name needs to hold 2 different sets of content, - for a differential. - for a complete archive How will ctm recipients later distinguish which CTM delta to pull via ftp if they both have the same name ? eg src-9.0300.gz a complete base CTM archive for later starters src-9.0300.gz a differential delta for those ftp'ing after maybe a mail outage on recipient loses an odd delta. Using same name in different new directories might also be problematic, as if we had eg /pub/FreeBSD/development/CTM/src-cur/src-9.0101.gz /pub/FreeBSD/development/CTM/src-cur/empty-new-dir/src-9.0101.gz all mirror site would need to create directories called /empty-new-dir/ which might (I don't know) require permission/manual intervention on mirrors). The scenario I guess hasn't happened before, & doesn't matter when a new archive first starts, as per src-9.0001.gz, but I guess this potential problem approaches as src-9.0077.gz approaches src-9.0100.gz or src-9.0101.gz ? Cheers, Julian -- Julian Stacey, BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com Reply below not above, cumulative like a play script, & indent with "> ". Format: Plain text. Not HTML, multipart/alternative, base64, quoted-printable. EU tax to kill London Vetoed http://berklix.com/~jhs/blog/2011_12_11