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Re: [PATCH] Detached HEAD (experimental)

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To: Carl Worth <cworth@...>
Cc: Junio C Hamano <junkio@...>, <git@...>
Date: Monday, January 8, 2007 - 11:26 pm

Carl Worth <cworth@cworth.org> wrote:

The common case is probably going to be where the argument to
`git checkout` is a fast-foward of the detached HEAD.  And that's
pretty cheap to check.  So we perform that check, and if we fail
that then we search through every ref to determine if the detached
HEAD is fully contained in any of those.  Currently that would be
pretty slow to do with the current tools, but a small modification
of say git-merge-base (or git-describe) might make it cheap enough
to run during this slightly less common case.

No need to complicate merge/am/rebase/revert/commit/applymbox
with a -b option.

-- 
Shawn.
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Messages in current thread:
[PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 2, 3:45 am)
[PATCH] git-branch: show detached HEAD, Lars Hjemli, (Tue Jan 2, 7:22 pm)
Re: [PATCH] git-branch: show detached HEAD, Junio C Hamano, (Wed Jan 3, 3:05 am)
Re: [PATCH] git-branch: show detached HEAD, Lars Hjemli, (Wed Jan 3, 3:37 am)
Re: [PATCH] git-branch: show detached HEAD, Shawn O. Pearce, (Wed Jan 3, 1:18 am)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Tue Jan 2, 5:56 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 2, 6:44 pm)
Re: [PATCH] Detached HEAD (experimental), Jeff King, (Wed Jan 3, 6:46 am)
Re: [PATCH] Detached HEAD (experimental), Jeff King, (Wed Jan 3, 7:59 am)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Tue Jan 2, 7:34 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Mon Jan 8, 7:19 am)
Re: [PATCH] Detached HEAD (experimental), Jeff King, (Mon Jan 8, 9:17 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Mon Jan 8, 8:19 pm)
Re: [PATCH] Detached HEAD (experimental), Jeff King, (Tue Jan 9, 10:21 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 9, 5:20 pm)
Re: [PATCH] Detached HEAD (experimental), J. Bruce Fields, (Tue Jan 9, 5:31 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 9, 6:37 pm)
Re: [PATCH] Detached HEAD (experimental), Linus Torvalds, (Tue Jan 9, 7:46 pm)
Re: [PATCH] Detached HEAD (experimental), Jeff King, (Wed Jan 10, 10:04 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 8:34 pm)
Re: [PATCH] Detached HEAD (experimental), J. Bruce Fields, (Thu Jan 11, 12:31 am)
Re: [PATCH] Detached HEAD (experimental), Andy Parkins, (Wed Jan 10, 5:04 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 5:33 am)
Re: [PATCH] Detached HEAD (experimental), Andy Parkins, (Wed Jan 10, 6:10 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 12:18 pm)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Wed Jan 10, 6:25 am)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Wed Jan 10, 5:05 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 4:02 am)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Tue Jan 9, 8:51 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 9, 8:10 pm)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Tue Jan 9, 8:18 pm)
Re: [PATCH] Detached HEAD (experimental), Linus Torvalds, (Tue Jan 9, 8:54 pm)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Tue Jan 9, 7:39 pm)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Tue Jan 9, 5:43 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 5:40 am)
Re: [PATCH] Detached HEAD (experimental), Andreas Ericsson, (Wed Jan 10, 5:08 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Wed Jan 10, 5:46 am)
Re: [PATCH] Detached HEAD (experimental), Daniel Barkalow, (Wed Jan 10, 12:30 pm)
Re: [PATCH] Detached HEAD (experimental), Andreas Ericsson, (Thu Jan 11, 5:45 am)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Tue Jan 9, 7:44 pm)
Re: [PATCH] Detached HEAD (experimental), J. Bruce Fields, (Tue Jan 9, 5:53 pm)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Mon Jan 8, 8:43 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Mon Jan 8, 9:05 pm)
Re: [PATCH] Detached HEAD (experimental), Carl Worth, (Mon Jan 8, 9:15 pm)
Re: [PATCH] Detached HEAD (experimental), Luben Tuikov, (Tue Jan 9, 4:12 am)
Re: [PATCH] Detached HEAD (experimental), Shawn O. Pearce, (Mon Jan 8, 11:26 pm)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 9, 3:07 am)
Re: [PATCH] Detached HEAD (experimental), Junio C Hamano, (Tue Jan 2, 10:45 pm)
Re: [PATCH] Detached HEAD (experimental), Edgar Toernig, (Tue Jan 2, 3:59 pm)
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