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Re: RFC: grafts generalised

From
Michael J Gruber <michaeljgruber+gmane@fastmail.fm>
Date
Jul 2, 2008, 18:34 UTC
Message-ID
<g4gho9$g42$1@ger.gmane.org>
In-Reply-To
<20080702182510.GC29559@glandium.org>
Mike Hommey venit, vidit, dixit 02.07.2008 20:25:
Show 25 quoted lines
> On Wed, Jul 02, 2008 at 07:42:55PM +0200, Stephen R. van den Berg wrote:
>> Michael J Gruber wrote:
>>> Maybe the upcoming git-sequencer could be the appropriate place? It 
>>> tries to achieve just that: edit history by specifying a list of 
>>> commands. The currently planned set of commands would need to be 
>> That's the problem.  Like git filter-branch, git sequencer needs you to
>> parameterise the changes, which, in my case, is hardly possible, since
>> the changes are randomlike.
>> Also, having to run the sequencer to dig 20000 commits into the past,
>> then change something, then come back up and rewrite all following
>> history and relations (parents/tags/merges) will take a sizeable amount
>> of time.  I need something that can be changed at will, then viewed with
>> gitk a second later.
>>
>> These edits are numerous and spread over many months, so the typical 
>> history fixup-sessions involve periods where you make 30 random
>> historicaledits per hour (which need to be viewed and checked every time
>> immediately after making the change).  And say once every 4 months, you
>> run it through git filter-branch to cast everything into stone.  A
>> typical git filter-branch run takes 15 minutes on a repository this
>> size.
> 
> I think the point was more about making a tool to do exactly what you
> want, based on the new git sequencer. Note that git filter-branch could
> also be rewritten to use the sequencer.

Yes, that was at least my point. As I understand, git filter-branch -i is a candidate for that rewrite.

But I understand now that OP wants to do lots of history edits and see them immediately before doing the actual (time consuming) rewrite; and then do the rewrite occasionally. Rewriting is surpirsingly slow even on tmpfs.

Michael
Previous: Mike HommeyNext: Stephen R. van den Berg
Message 6 of 36 in “RFC: grafts generalised”
  1. Stephen R. van den BergJul 2, 2008
  2. Jakub NarebskiJul 2, 2008
  3. Michael J GruberJul 2, 2008
  4. Stephen R. van den BergJul 2, 2008
  5. Mike HommeyJul 2, 2008
  6. Michael J GruberJul 2, 2008
  7. Stephen R. van den BergJul 2, 2008
  8. Stephan BeyerJul 2, 2008
  9. Stephan BeyerJul 2, 2008
  10. Dmitry PotapovJul 2, 2008
  11. Stephan BeyerJul 2, 2008
  12. Stephen R. van den BergJul 3, 2008
  13. Andreas EricssonJul 7, 2008
  14. Stephen R. van den BergJul 7, 2008
  15. Stephen R. van den BergJul 2, 2008
  16. Petr BaudisJul 3, 2008
  17. Stephen R. van den BergJul 3, 2008
  18. Jakub NarebskiJul 4, 2008
  19. Dmitry PotapovJul 2, 2008
  20. Dmitry PotapovJul 2, 2008
  21. Stephen R. van den BergJul 2, 2008
  22. Dmitry PotapovJul 2, 2008
  23. Dmitry PotapovJul 2, 2008
  24. Stephen R. van den BergJul 2, 2008
  25. Avery PennarunJul 2, 2008
  26. Junio C HamanoJul 2, 2008
  27. Junio C HamanoJul 2, 2008
  28. Junio C HamanoJul 3, 2008
  29. Johannes SixtJul 3, 2008
  30. Stephen R. van den BergJul 3, 2008
  31. Johannes SixtJul 3, 2008
  32. Stephen R. van den BergJul 3, 2008
  33. Stephen R. van den BergJul 2, 2008
  34. Petr BaudisJul 3, 2008
  35. Petr BaudisJul 3, 2008
  36. Junio C HamanoJul 3, 2008

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