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Re: multi-project repos (was Re: Cleaning up git user-interface warts)

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To: Johannes Schindelin <Johannes.Schindelin@...>
Cc: Han-Wen Nienhuys <hanwen@...>, Junio C Hamano <junkio@...>, <git@...>
Date: Thursday, November 16, 2006 - 8:49 pm

On Fri, 17 Nov 2006, Johannes Schindelin wrote:

Heh. The "temporary branches" are actually the _original_ branches as far 
as git is concerned. The long-term branches only came later.

So in many ways, HEAD, FETCH_HEAD, MERGE_HEAD and ORIG_HEAD are more 
fundamental than any long-term branch has ever been, and maybe they should 
be taught first as such.

So you're newbie enough that you've only seen those new-fangled "real" 
branches.

When I was young, we had to walk to school up-hill in three feet of snow 
every day. And we _liked_ our FETCH_HEAD's.


Well, exactly because they are temporary, we can't actually trust the 
objects they point to. They have no "real" long-term life, so no, I'm 
afraid that we always will have to re-fetch the objects, because fetching 
them is the only way to know that we still have them. 

That said, we could certainly _make_ them be honored by things like "git 
prune" and friends. But yes, they really _are_ temporary branches right 
now, and part of the meaning of that "temporary" is exactly the fact that 
git fetch will not trust that you still have the objects. 

For example, if you used one of the old-fashioned commit walkers, maybe we 
got the initial commit, but we may not have gotten the whole _chain_. See?

Temporary branch indeed.


Well, we clearly should document them better. Anybody?

		Linus
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Messages in current thread:
Re: Cleaning up git user-interface warts, Jakub Narebski, (Tue Nov 14, 5:30 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Tue Nov 14, 5:34 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Tue Nov 14, 6:56 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Tue Nov 14, 9:48 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Tue Nov 14, 10:10 pm)
Re: Cleaning up git user-interface warts, Petr Baudis, (Wed Nov 15, 4:12 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 4:26 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 4:50 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 5:18 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 12:20 am)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 2:03 pm)
Re: Cleaning up git user-interface warts, Petr Baudis, (Thu Nov 16, 12:30 am)
Re: Cleaning up git user-interface warts, Theodore Tso, (Wed Nov 15, 9:14 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 12:21 am)
Re: Cleaning up git user-interface warts, Theodore Tso, (Thu Nov 16, 12:07 pm)
Re: Cleaning up git user-interface warts , Sanjoy Mahajan, (Wed Nov 22, 7:21 pm)
Re: Cleaning up git user-interface warts, Theodore Tso, (Thu Nov 16, 12:49 pm)
Re: Cleaning up git user-interface warts, Alexandre Julliard, (Thu Nov 16, 7:34 am)
Re: Cleaning up git user-interface warts, Petr Baudis, (Thu Nov 16, 10:01 am)
Re: Cleaning up git user-interface warts, Alexandre Julliard, (Thu Nov 16, 11:48 am)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Wed Nov 15, 9:20 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 11:12 pm)
Re: Cleaning up git user-interface warts, Johannes Schindelin, (Thu Nov 16, 7:00 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 7:22 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 8:05 pm)
Re: Cleaning up git user-interface warts , Horst H. von Brand, (Wed Nov 22, 10:52 pm)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Thu Nov 16, 9:34 pm)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Fri Nov 17, 2:42 am)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Fri Nov 17, 3:32 am)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Fri Nov 17, 9:24 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 8:39 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 8:52 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 8:13 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 9:25 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 8:37 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 8:27 pm)
Re: Cleaning up git user-interface warts, Petr Baudis, (Thu Nov 16, 8:35 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 6:45 am)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 12:23 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 12:42 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 1:17 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 2:13 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 1:57 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 2:28 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 3:47 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 3:53 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 2:27 pm)
Re: multi-project repos (was Re: Cleaning up git user-interf..., Johannes Schindelin, (Thu Nov 16, 6:21 pm)
Re: multi-project repos (was Re: Cleaning up git user-interf..., Johannes Schindelin, (Thu Nov 16, 7:36 pm)
Re: multi-project repos (was Re: Cleaning up git user-interf..., Linus Torvalds, (Thu Nov 16, 8:49 pm)
Re: multi-project repos (was Re: Cleaning up git user-interf..., Johannes Schindelin, (Thu Nov 16, 9:22 pm)
Re: multi-project repos (was Re: Cleaning up git user-interf..., Johannes Schindelin, (Thu Nov 16, 10:16 pm)
Re: multi-project repos, Junio C Hamano, (Thu Nov 16, 6:44 pm)
Re: multi-project repos, Johannes Schindelin, (Thu Nov 16, 8:29 pm)
Re: multi-project repos, Junio C Hamano, (Fri Nov 17, 1:39 pm)
Re: multi-project repos, Shawn Pearce, (Sat Nov 18, 2:02 am)
Re: multi-project repos, Junio C Hamano, (Sat Nov 18, 3:31 am)
Re: multi-project repos, Shawn Pearce, (Sat Nov 18, 3:45 am)
Re: multi-project repos, Junio C Hamano, (Fri Nov 17, 4:24 pm)
Re: multi-project repos, Junio C Hamano, (Thu Nov 16, 2:33 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 7:11 am)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 9:03 am)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Thu Nov 16, 9:11 am)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 7:47 am)
Re: Cleaning up git user-interface warts , Horst H. von Brand, (Mon Nov 20, 3:44 pm)
Re: Cleaning up git user-interface warts, Shawn Pearce, (Mon Nov 20, 3:46 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 10:03 pm)
Re: Cleaning up git user-interface warts, Han-Wen Nienhuys, (Wed Nov 15, 10:30 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 11:27 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Thu Nov 16, 12:07 am)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 11:35 pm)
Re: Cleaning up git user-interface warts, Andy Parkins, (Wed Nov 15, 2:58 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 3:32 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 3:18 pm)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Wed Nov 15, 3:39 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 4:09 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 4:21 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 4:40 pm)
Re: Cleaning up git user-interface warts, Theodore Tso, (Thu Nov 16, 12:26 am)
Re: Cleaning up git user-interface warts, Andreas Ericsson, (Thu Nov 16, 7:50 am)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 12:30 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 1:01 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Thu Nov 16, 1:30 pm)
Re: Cleaning up git user-interface warts, Sean, (Thu Nov 16, 1:44 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Wed Nov 15, 5:08 pm)
Re: Cleaning up git user-interface warts, Jerome Lovy, (Tue Nov 21, 9:25 am)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 5:45 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Wed Nov 15, 6:52 pm)
Re: Cleaning up git user-interface warts, Sean, (Wed Nov 15, 7:07 pm)
Re: Cleaning up git user-interface warts, Shawn Pearce, (Wed Nov 15, 7:02 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 7:33 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 12:37 pm)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Thu Nov 16, 1:57 pm)
Re: Cleaning up git user-interface warts, Carl Worth, (Thu Nov 16, 2:23 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Fri Nov 17, 4:41 am)
Re: Cleaning up git user-interface warts, Carl Worth, (Fri Nov 17, 5:18 am)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Fri Nov 17, 7:29 am)
Re: Cleaning up git user-interface warts, Johannes Schindelin, (Fri Nov 17, 6:11 am)
Re: Cleaning up git user-interface warts, Shawn Pearce, (Fri Nov 17, 12:58 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Fri Nov 17, 7:41 am)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Wed Nov 15, 11:02 pm)
Re: Cleaning up git user-interface warts, Andreas Ericsson, (Thu Nov 16, 7:35 am)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 8:08 pm)
Re: Cleaning up git user-interface warts, Linus Torvalds, (Wed Nov 15, 11:07 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 11:43 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 5:31 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 5:40 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 5:52 pm)
Re: Cleaning up git user-interface warts, Karl , (Fri Nov 17, 8:20 am)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 5:59 pm)
Re: Cleaning up git user-interface warts, Nicolas Pitre, (Wed Nov 15, 2:43 pm)
Re: Cleaning up git user-interface warts, Shawn Pearce, (Wed Nov 15, 2:49 pm)
Re: Cleaning up git user-interface warts, Marko Macek, (Wed Nov 15, 3:05 pm)
Re: Cleaning up git user-interface warts, Sean, (Wed Nov 15, 6:28 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 4:41 pm)
Re: Cleaning up git user-interface warts, Marko Macek, (Thu Nov 16, 2:07 am)
Re: Cleaning up git user-interface warts, Shawn Pearce, (Wed Nov 15, 6:07 pm)
Re: Cleaning up git user-interface warts, Junio C Hamano, (Wed Nov 15, 12:58 am)
Re: Cleaning up git user-interface warts, Michael K. Edwards, (Tue Nov 14, 10:27 pm)
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