Re: basics... when reading docs doesn't help

From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mar 29, 2007, 22:35 UTC
Message-ID: <Pine.LNX.4.64.0703291531030.6730@woody.linux-foundation.org>
In-Reply-To: <Pine.LNX.4.60.0703292354100.10351@poirot.grange>

On Fri, 30 Mar 2007, Guennadi Liakhovetski wrote:

Show 7 quoted lines

> > > 
> > > How about suggesting "clone -l -s"?
> 
> Yes, but how do "advanced git users" kernel developers work? Do they just 
> do 1 clone and build / clean every time they want to test another 
> configuration / arch, or do they clone -l or what? Do they create branches 
> for each development thread, then pull / push between trees?...

I suspect it depends on the developer.

I end up just using different branches and switching between them, but then, my branches tend to all be pretty small test-stuff (I only end up using one main branch, since 99% of what I do is merge other peoples stuff that has already gone through a test-cycle).

> But I don't want to re-build. Apart from i386 I build for a couple of ARM 
> and PPC targets too...

You're probably fine with "git clone -l -s" then.

Show 6 quoted lines

> Strange. Is my git 1.4.0 criminally broken? I have a clone of Linus' tree 
> on a USB disk on ext3 without any objects, which I just cloned at some 
> point and then did a couple of pulls from the same source. Now
> 
> 1545084 /mnt/sda2/kernel-git/linux-2.6/
> 1255084 /mnt/sda2/kernel-git/linux-2.6/.git

The old git that always exploded all pulls and generated lots of loose objects? You can check with "git count-objects".

And to fix it, just do a "git gc" (or with older git versions, the secret handshake is just a simple "git repack -a -d").

Show 8 quoted lines

> But that's a freshly cloned tree, without any pulls. I re-cloned it, 
> because the tree I had earlier had the problem with each pull:
> 
> Unpacking 12452 objects
>  100% (12452/12452) done
> * refs/heads/origin: does not fast forward to branch 'master' of 
> git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc;
>   not updating.

Sounds like either Paul re-based his tree, or you did some work on your "origin" branch..

			Linus