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Re: [PATCH] git-gui: give more advice when detaching HEAD

From
Junio C Hamano <gitster@pobox.com>
Date
Feb 12, 2011, 08:17 UTC
Message-ID
<7vzkq1y8dv.fsf@alter.siamese.dyndns.org>
In-Reply-To
<20110212080456.GA18380@sigill.intra.peff.net>
Jeff King <peff@peff.net> writes:
> Is it that cheap? A full reachability check for something that is not in
> any ref would involve going to the roots, wouldn't it?
You only need to dig until you hit a merge base, no?

In this case, you would need to compute just one merge base, between the commit you are about to leave, and the (imaginary) commit that is a merge across all the tips of your refs. If the merge base is the commit you are about to leave, you were sightseeing in the past without creating anything new, otherwise you will lose commits between the computed base and the commit you are about to leave.

And merge-base has an interface to compute exactly that, I think.
Previous: Jeff KingNext: Jeff King
Message 4 of 19 in “git-gui: give more advice when detaching HEAD”
  1. git-gui: give more advice when detaching HEADJeff King, Feb 12, 2011
  2. Junio C HamanoFeb 12, 2011
  3. Jeff KingFeb 12, 2011
  4. Junio C HamanoFeb 12, 2011
  5. Jeff KingFeb 12, 2011
  6. Junio C HamanoFeb 17, 2011
  7. Junio C HamanoFeb 12, 2011
  8. Sverre RabbelierFeb 13, 2011
  9. Johannes SixtFeb 13, 2011
  10. Junio C HamanoFeb 13, 2011
  11. Heiko VoigtFeb 13, 2011
  12. Jeff KingFeb 15, 2011
  13. Heiko VoigtFeb 15, 2011
  14. Pat ThoytsFeb 15, 2011
  15. Jeff KingFeb 16, 2011
  16. Heiko VoigtFeb 17, 2011
  17. Jeff KingFeb 16, 2011
  18. Heiko VoigtFeb 17, 2011
  19. Victor EngmarkFeb 16, 2011

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