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Re: [PATCH/RFC v2 04/16] Modify write functions to prepare for other index formats

From
Thomas Gummerer <t.gummerer@gmail.com>
Date
Aug 7, 2012, 12:50 UTC
Message-ID
<20120807125039.GB913@tgummerer>
In-Reply-To
<7v1ujk3iso.fsf@alter.siamese.dyndns.org>
On 08/05, Junio C Hamano wrote:
Show 28 quoted lines
> Thomas Gummerer <t.gummerer@gmail.com> writes:
> 
> > -static int ce_write(git_SHA_CTX *context, int fd, void *data, unsigned int len)
> > +static int ce_write_v2(git_SHA_CTX *context, int fd, void *data, unsigned int len)
> >  {
> 
> Mild NAK to name this function with any hint that it is for v2 only.
> The type of "data" is not "struct ondisk_index_entry_v2" and this is
> just a way to stream data to "fd" while hashing, which is similar in
> spirit to what csum-file.c "sha1file'"API does.  Perhaps we may want
> to update ce_write() interface to build on top of sha1file API?
> 
> At this step in the series, is it too early to split read-cache.c
> into two files, move all the v2 specific part to read-cache-v2.c,
> and keep static function names like write_index_ext_header() as they
> are?  After all, the main dispatch would become
> 
> > +int write_index(struct index_state *istate, int newfd)
> > +{
> > +	if (!istate->version)
> > +		istate->version = INDEX_FORMAT_DEFAULT;
> > +
> > +	return write_index_v2(istate, newfd);
> > +}
> 
> so read-cache-v2.c would need to export write_index_v2() but the
> functions to implement it like ce_write_entry() do not have to be
> exposed outside the file, no?

No I think it makes sense to split them at this point. I'll do it along the lines of what Duy suggested with his patch. [1]

[1] http://thread.gmane.org/gmane.comp.version-control.git/202923/focus=202964
Previous: Junio C HamanoNext: Thomas Gummerer
Message 10 of 59 in “Introduce index file format version 5”
  1. 0/16 Introduce index file format version 5Thomas Gummerer, Aug 5, 2012
  2. 01/16 Modify cache_header to prepare for other index formatsThomas Gummerer, Aug 5, 2012
  3. Junio C HamanoAug 6, 2012
  4. Thomas GummererAug 7, 2012
  5. Junio C HamanoAug 7, 2012
  6. 02/16 Modify read functions to prepare for other index formatsThomas Gummerer, Aug 5, 2012
  7. 03/16 Modify match_stat_basic to prepare for other index formatsThomas Gummerer, Aug 5, 2012
  8. 04/16 Modify write functions to prepare for other index formatsThomas Gummerer, Aug 5, 2012
  9. Junio C HamanoAug 6, 2012
  10. Thomas GummererAug 7, 2012
  11. 05/16 t2104: Don't fail for index versions other than [23]Thomas Gummerer, Aug 5, 2012
  12. Junio C HamanoAug 6, 2012
  13. 06/16 t3700: sleep for 1 second, to avoid interfering with the racy codeThomas Gummerer, Aug 5, 2012
  14. Junio C HamanoAug 6, 2012
  15. Thomas GummererAug 7, 2012
  16. Junio C HamanoAug 8, 2012
  17. Junio C HamanoAug 8, 2012
  18. Thomas GummererAug 9, 2012
  19. Junio C HamanoAug 9, 2012
  20. Thomas GummererAug 9, 2012
  21. 07/16 Add documentation of the index-v5 file formatThomas Gummerer, Aug 5, 2012
  22. 08/16 Make in-memory format aware of stat_crcThomas Gummerer, Aug 5, 2012
  23. Junio C HamanoAug 6, 2012
  24. Thomas GummererAug 7, 2012
  25. 09/16 Read index-v5Thomas Gummerer, Aug 5, 2012
  26. Junio C HamanoAug 6, 2012
  27. Thomas GummererAug 8, 2012
  28. Junio C HamanoAug 8, 2012
  29. Thomas GummererAug 8, 2012
  30. Junio C HamanoAug 8, 2012
  31. 10/16 Read resolve-undo dataThomas Gummerer, Aug 5, 2012
  32. Junio C HamanoAug 6, 2012
  33. Thomas GummererAug 7, 2012
  34. 11/16 Read cache-tree in index-v5Thomas Gummerer, Aug 5, 2012
  35. 12/16 Write index-v5Thomas Gummerer, Aug 5, 2012
  36. 13/16 Write index-v5 cache-tree dataThomas Gummerer, Aug 5, 2012
  37. 14/16 Write resolve-undo data for index-v5Thomas Gummerer, Aug 5, 2012
  38. 15/16 update-index.c: add a force-rewrite optionThomas Gummerer, Aug 5, 2012
  39. Junio C HamanoAug 6, 2012
  40. Thomas GummererAug 8, 2012
  41. 16/16 p0002-index.sh: add perf test for the index formatsThomas Gummerer, Aug 5, 2012
  42. Nguyễn Thái Ngọc DuyAug 6, 2012
  43. 1/2 Move index v2 specific code out of read-cacheNguyễn Thái Ngọc Duy, Aug 6, 2012
  44. 2/2 Add index-v5Nguyễn Thái Ngọc Duy, Aug 6, 2012
  45. Robin RosenbergAug 7, 2012
  46. Thomas GummererAug 8, 2012
  47. Junio C HamanoAug 6, 2012
  48. Thomas GummererAug 6, 2012
  49. Junio C HamanoAug 6, 2012
  50. Nguyen Thai Ngoc DuyAug 7, 2012
  51. Junio C HamanoAug 8, 2012
  52. Nguyen Thai Ngoc DuyAug 8, 2012
  53. Junio C HamanoAug 8, 2012
  54. Nguyen Thai Ngoc DuyAug 9, 2012
  55. Thomas RastAug 7, 2012
  56. Junio C HamanoAug 7, 2012
  57. Thomas RastAug 8, 2012
  58. Junio C HamanoAug 8, 2012
  59. Nguyen Thai Ngoc DuyAug 8, 2012

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