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Re: [PATCH 13/16] init: allow alternate backends to be set for new repos

From
Jeff King <peff@peff.net>
Date
Dec 5, 2015, 07:44 UTC
Message-ID
<20151205074444.GD21639@sigill.intra.peff.net>
In-Reply-To
<CACsJy8DDKW4np7N+KA=dpz9uNke0+cyQD-J3U74VM=4WbsjrKQ@mail.gmail.com>
On Sat, Dec 05, 2015 at 07:30:13AM +0100, Duy Nguyen wrote:
Show 11 quoted lines
> On Thu, Dec 3, 2015 at 1:35 AM, David Turner <dturner@twopensource.com> wrote:
> > git init learns a new argument --refs-backend-type.  Presently, only
> > "files" is supported, but later we will add other backends.
> >
> > When this argument is used, the repository's core.refsBackendType
> > configuration value is set, and the refs backend's initdb function is
> > used to set up the ref database.
> 
> git-init can also be used on existing repos. What happens in that case
> if we use --refs-backend-type. Will existing  refs be migrated to the
> new backend or hidden away?

It would be neat if it migrated, but I suspect that may introduce complications. It's probably OK in the initial implementation to bail if the option is used in an existing repo.

I think the config option needs to be extensions.refsBackendType, too, per the logic in 00a09d5 (introduce "extensions" form of core.repositoryformatversion, 2015-06-23). And I guess it needs to bump core.repositoryformatversion to "1".

-Peff
Previous: Duy NguyenNext: David Turner
Message 46 of 73 in “LMDB refs backend atop pre-vtable”
  1. 00/16 LMDB refs backend atop pre-vtableDavid Turner, Dec 3, 2015
  2. 01/16 refs: add a backend method structure with transaction functionsDavid Turner, Dec 3, 2015
  3. Junio C HamanoDec 5, 2015
  4. 02/16 refs: add methods for misc ref operationsDavid Turner, Dec 3, 2015
  5. Junio C HamanoDec 11, 2015
  6. David TurnerDec 11, 2015
  7. Junio C HamanoDec 11, 2015
  8. David TurnerDec 11, 2015
  9. Junio C HamanoDec 12, 2015
  10. David TurnerDec 12, 2015
  11. Howard ChuDec 18, 2015
  12. 03/16 refs: add methods for the ref iteratorsDavid Turner, Dec 3, 2015
  13. David AguilarJan 3, 2016
  14. Junio C HamanoJan 4, 2016
  15. Michael HaggertyJan 5, 2016
  16. Junio C HamanoJan 5, 2016
  17. Ronnie SahlbergJan 4, 2016
  18. Junio C HamanoJan 4, 2016
  19. Jeff KingJan 5, 2016
  20. Junio C HamanoJan 5, 2016
  21. 04/16 refs: add do_for_each_per_worktree_refDavid Turner, Dec 3, 2015
  22. Junio C HamanoDec 11, 2015
  23. David TurnerDec 12, 2015
  24. 05/16 refs: add methods for reflogDavid Turner, Dec 3, 2015
  25. 06/16 refs: add method for initial ref transaction commitDavid Turner, Dec 3, 2015
  26. 07/16 refs: add method for delete_refsDavid Turner, Dec 3, 2015
  27. 08/16 refs: add methods to init refs backend and dbDavid Turner, Dec 3, 2015
  28. Michael HaggertyDec 23, 2015
  29. David TurnerDec 23, 2015
  30. 09/16 refs: add method to rename refsDavid Turner, Dec 3, 2015
  31. 10/16 refs: make lock genericDavid Turner, Dec 3, 2015
  32. 11/16 refs: move duplicate check to common codeDavid Turner, Dec 3, 2015
  33. Michael HaggertyDec 23, 2015
  34. David TurnerJan 5, 2016
  35. 12/16 refs: always handle non-normal refs in files backendDavid Turner, Dec 3, 2015
  36. Michael HaggertyDec 23, 2015
  37. David TurnerJan 6, 2016
  38. 1/3 refs: allow log-only updatesDavid Turner, Jan 6, 2016
  39. 2/3 refs: resolve symbolic refs firstDavid Turner, Jan 6, 2016
  40. 3/3 refs: always handle non-normal refs in files backendDavid Turner, Jan 6, 2016
  41. David TurnerJan 8, 2016
  42. David TurnerJan 6, 2016
  43. 13/16 init: allow alternate backends to be set for new reposDavid Turner, Dec 3, 2015
  44. Junio C HamanoDec 5, 2015
  45. Duy NguyenDec 5, 2015
  46. Jeff KingDec 5, 2015
  47. David TurnerDec 8, 2015
  48. Michael HaggertyDec 23, 2015
  49. Jeff KingDec 23, 2015
  50. Jeff KingDec 10, 2015
  51. David TurnerDec 10, 2015
  52. clone: use child_process for recursive checkoutsMichael Haggerty, Dec 23, 2015
  53. David TurnerJan 6, 2016
  54. Michael HaggertyDec 23, 2015
  55. David TurnerJan 5, 2016
  56. Junio C HamanoJan 5, 2016
  57. David TurnerJan 5, 2016
  58. Michael HaggertyJan 6, 2016
  59. Duy NguyenJan 6, 2016
  60. Shawn PearceJan 7, 2016
  61. 14/16 refs: allow ref backend to be set for cloneDavid Turner, Dec 3, 2015
  62. Michael HaggertyDec 23, 2015
  63. Eric SunshineDec 23, 2015
  64. 15/16 refs: add LMDB refs backendDavid Turner, Dec 3, 2015
  65. Junio C HamanoDec 5, 2015
  66. David TurnerDec 5, 2015
  67. Jonathan NiederDec 17, 2015
  68. David TurnerDec 17, 2015
  69. Jonathan NiederDec 17, 2015
  70. Michael HaggertyDec 23, 2015
  71. David TurnerJan 8, 2016
  72. 16/16 refs: tests for lmdb backendDavid Turner, Dec 3, 2015
  73. David TurnerDec 22, 2015

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