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Re: [PATCH v2 10/19] documentation: add documentation of the index-v5 file format

From
Thomas Gummerer <t.gummerer@gmail.com>
Date
Aug 4, 2013, 17:58 UTC
Message-ID
<878v0hqqw5.fsf@gmail.com>
In-Reply-To
<CACsJy8D9Q5=TF7MD1PUid-HEsCb7+JKo6=Rv6zXtjRYO3fPVYQ@mail.gmail.com>
Duy Nguyen <pclouds@gmail.com> writes:
Show 19 quoted lines
> On Sat, Jul 13, 2013 at 12:26 AM, Thomas Gummerer <t.gummerer@gmail.com> wrote:
>> +== Header
>> +   sig (32-bits): Signature:
>> +     The signature is { 'D', 'I', 'R', 'C' } (stands for "dircache")
>> +
>> +   vnr (32-bits): Version number:
>> +     The current supported versions are 2, 3, 4 and 5.
>> +
>> +   ndir (32-bits): number of directories in the index.
>> +
>> +   nfile (32-bits): number of file entries in the index.
>
> I just noticed that "file" command can show the number of entries,
> something like this
>
> .git/index: Git index, version 4, 2625 entries
>
> Maybe we can swap ndir and nfile to immitate pre-v5 format, so
> unmodified "file" still shows correct number of entries/files with v5?

Cool, I didn't know that worked. In that case it makes sense to immitate pre-v5 format. Will change this in the re-roll.

Just a heads up about my progress, I'm currently trying out your suggestions about storing the directories as tree-format when reading and storing the dummy entries in the index. I'll make some experiments to see if the change is worth it, and will then send a re-roll, probably in a couple of weeks.

Previous: Duy NguyenNext: Thomas Gummerer
Message 24 of 51 in “Index-v5”
  1. 00/19 Index-v5Thomas Gummerer, Jul 12, 2013
  2. 01/19 t2104: Don't fail for index versions other than [23]Thomas Gummerer, Jul 12, 2013
  3. 02/19 read-cache: split index file version specific functionalityThomas Gummerer, Jul 12, 2013
  4. 03/19 read-cache: move index v2 specific functions to their own fileThomas Gummerer, Jul 12, 2013
  5. Duy NguyenJul 14, 2013
  6. Thomas GummererJul 19, 2013
  7. 04/19 read-cache: Re-read index if index file changedThomas Gummerer, Jul 12, 2013
  8. 05/19 Add documentation for the index apiThomas Gummerer, Jul 12, 2013
  9. 06/19 read-cache: add index reading apiThomas Gummerer, Jul 12, 2013
  10. Duy NguyenJul 14, 2013
  11. 07/19 make sure partially read index is not changedThomas Gummerer, Jul 12, 2013
  12. Duy NguyenJul 14, 2013
  13. Thomas GummererJul 17, 2013
  14. 08/19 grep.c: Use index apiThomas Gummerer, Jul 12, 2013
  15. Duy NguyenJul 14, 2013
  16. Thomas GummererJul 15, 2013
  17. 09/19 ls-files.c: use index apiThomas Gummerer, Jul 12, 2013
  18. Duy NguyenJul 14, 2013
  19. Thomas GummererJul 17, 2013
  20. 10/19 documentation: add documentation of the index-v5 file formatThomas Gummerer, Jul 12, 2013
  21. Duy NguyenJul 14, 2013
  22. Thomas GummererJul 17, 2013
  23. Duy NguyenAug 4, 2013
  24. Thomas GummererAug 4, 2013
  25. 11/19 read-cache: make in-memory format aware of stat_crcThomas Gummerer, Jul 12, 2013
  26. 12/19 read-cache: read index-v5Thomas Gummerer, Jul 12, 2013
  27. Duy NguyenJul 14, 2013
  28. Thomas GummererAug 7, 2013
  29. Duy NguyenJul 15, 2013
  30. Thomas GummererJul 17, 2013
  31. Duy NguyenAug 8, 2013
  32. Thomas GummererAug 8, 2013
  33. Thomas GummererAug 9, 2013
  34. Thomas GummererAug 7, 2013
  35. Duy NguyenAug 8, 2013
  36. 13/19 read-cache: read resolve-undo dataThomas Gummerer, Jul 12, 2013
  37. 14/19 read-cache: read cache-tree in index-v5Thomas Gummerer, Jul 12, 2013
  38. 15/19 read-cache: write index-v5Thomas Gummerer, Jul 12, 2013
  39. 16/19 read-cache: write index-v5 cache-tree dataThomas Gummerer, Jul 12, 2013
  40. 17/19 read-cache: write resolve-undo data for index-v5Thomas Gummerer, Jul 12, 2013
  41. 18/19 update-index.c: rewrite index when index-version is givenThomas Gummerer, Jul 12, 2013
  42. 19/19 p0003-index.sh: add perf test for the index formatsThomas Gummerer, Jul 12, 2013
  43. Duy NguyenJul 14, 2013
  44. Thomas GummererJul 15, 2013
  45. Duy NguyenJul 15, 2013
  46. Thomas GummererJul 17, 2013
  47. Junio C HamanoJul 17, 2013
  48. Thomas GummererJul 19, 2013
  49. Junio C HamanoJul 19, 2013
  50. Ramsay JonesJul 16, 2013
  51. Thomas GummererJul 17, 2013

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