Re: unseeking?

From: Petr Baudis <pasky@ucw.cz>
Date: Apr 24, 2005, 16:05 UTC
Message-ID: <20050424160514.GI1507@pasky.ji.cz>
In-Reply-To: <20050424154754.GA11094@tumblerings.org>

Dear diary, on Sun, Apr 24, 2005 at 05:47:54PM CEST, I got a letter where Zack Brown <zbrown@tumblerings.org> told me that...

> Hi,

Hi,

Show 13 quoted lines

> I've been pulling cogito and the kernel, and just fumbling around trying to
> learn the tool. My latest cogito is version 0.7, tracking
> 
> pasky   rsync://rsync.kernel.org/pub/scm/cogito/cogito.git
> linus   rsync://www.kernel.org/pub/linux/kernel/people/torvalds/git.git
> 
> I have many questions.
> 
> 1) I saw some discussion of 'seek' as a way to get to an earlier version of a
> tree; so I tried it on my own test directory. I 'seek'ed to the first patch, and
> it worked - but now all I have is that very early version of my test directory.
> All subsequent changes are apparently gone. How can I seek back to the most
> recent state of the dir?

git seek, without any arguments.

Perhaps we should prohibit absence of arguments and add 'unseek'?

Show 8 quoted lines

> 2) How can I 'check out' my local repository? i.e. I want to pretend to be
> two developers, one of whom wants to grab a copy of the project leader's work. I
> tried things like:
> 
> mkdir mygitdir2
> git init ../mygitdir
> 
> where mydir is my test git repository. This didn't work. I tried rephrasing the

Actually, this _would_ work:

	git init ../mygitdir/.git

Then, you would need to git pull to get the latest changes.

Show 11 quoted lines

> command with an rsync url:
> 
> git init rsync://home/zbrown/site/gitstuff/mygitdir
> 
> but that didn't work either. It just said:
> 
> defaulting to local storage area
> rsync: getaddrinfo: home 873: Name or service not known
> rsync error: error in socket IO (code 10) at clientserver.c(94)
> gitpull.sh: unable to get the head pointer of branch master
> gitinit.sh: pull failed

git fork seconddeveloper ../mygitdir

> 3) How can I do a rename with cogito? There doesn't seem to be a rename command,
> and if I manually do a mv and 'git add', I can commit the result, but what
> actually happened? Did I really do a rename? Is the file's history preserved?
> How can I verify these things?

Git does not record renames, and neither does Cogito (for now).

> 4) fork, seek, tag, and track are a little mysterious to me. I can guess at what
> these things do in general, but the specifics are confusing, and the README is a
> little vague.

Try head git*.sh. ;-)

Show 6 quoted lines

> 5) I'm a little confused about how to use a git repository to follow along with
> a project. I have no problem pulling the latest version, but I'm interested in
> generating changelogs for specific releases like 2.6.12-rc3. How can I
> 
>    a) identify the proper 'c83b95297c2a6336c2007548f909769e0862b509' string that
>    represents the release I'm interested in

Assuming that it is tagged, just do

	commit-id linux-2.6.12-rc3

or whatever the tag name is. From Cogito perspective, you can use the symbolic name anywhere you would use the proper string.

There is also tree-id and parent-id, with same usage.

>    b) generate the changelog between that version and the previous one,
>    once I've solved (a)

	git log previous that

Any ideas how to improve the user interface further are deeply appreciated. (However please note that it is going to undergo a big change in an hour or two, so you might want to postpone them until that.)

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
C++: an octopus made by nailing extra legs onto a dog. -- Steve Taylor