From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: History plugin in ReiserFS? Date: Sun, 30 Oct 2005 11:13:20 -0800 Message-ID: <43651B50.1080200@namesys.com> References: <52152.80.235.110.72.1130698205.squirrel@mailhost.ut.ee> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <52152.80.235.110.72.1130698205.squirrel@mailhost.ut.ee> List-Id: Content-Type: text/plain; charset="us-ascii" To: Toomas Laasik Cc: reiserfs-list@namesys.com Toomas Laasik wrote: >Hello, > >I was wondering if reiserfs has some sort of history plugin. I want a >filesystem that manages files similar to CVS or SVN so that I can say for >example that "I want asdasd.txt file exactly as it was on 15.10.2005 >14:20:05" and I can get it. Of cource keeping that kind of "changelog" >takes much room on disk, but I assume one could set a percentage of disk >space for history and/or max days to keep history from. > > Nothing yet exists, it should be done, and I encourage the doing of it. >It is one of my university projects to make this kind of filesystem or >modify some existing filesystem eg ReiserFS. > > Please send a design document. >Any sugestions how to implement or where to start? Is something like that >made already? Do you think that extending ReiserFS would be a good option? > > Yes. >I searched Google trying to find some material about writing ReiserFS >plugins, but found very little useful. > The assumption made is that people who write plugins read the source code.;-) We get complaints from people about our comments being too long (oy veh), so..... The other thing to do is to join our developers list, and ask lots of questions. >Maybe it's easier to start from >scratch? The goal is not to make production safe filesystem, but just >accomplish my task. > Why bother to write code if a few million aren't going to use it? It is always better to write less code and get it stable so it is widely used...... > Of cource if it is possible I would like that what I >do is useful not only to me but for others who might want something >similar too. > >Thanks in advance, > >Toomas > > > > > welcome to our community. Hans