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Re: [PATCH 00/12] show-ref: introduce mode to check for ref existence

From
PWPhillip Wood <phillip.wood123@gmail.com>
Date
Oct 25, 2023, 14:44 UTC
Message-ID
<f87c95d6-b1e5-45c7-b380-bdc8b8143ab9@gmail.com>
In-Reply-To
<CAFQ2z_PqNsz+zycSxz=q2cUVOpJS-AEjwHxEM-fiafxd3dxc9g@mail.gmail.com>
On 25/10/2023 15:26, Han-Wen Nienhuys wrote:
Show 21 quoted lines
> On Tue, Oct 24, 2023 at 9:17 PM Junio C Hamano <gitster@pobox.com> wrote:
>>
>> Patrick Steinhardt <ps@pks.im> writes:
>>
>>> this patch series introduces a new `--exists` mode to git-show-ref(1) to
>>> explicitly check for the existence of a reference, only.
>>
>> I agree that show-ref would be the best place for this feature (not
>> rev-parse, which is already a kitchen sink).  After all, the command
>> was designed for validating refs in 358ddb62 (Add "git show-ref"
>> builtin command, 2006-09-15).
>>
>> Thanks.  Hopefully I can take a look before I go offline.
> 
> The series description doesn't say why users would care about this.
> 
> If this is just to ease testing, I suggest adding functionality to a
> suitable test helper. Anything you add to git-show-ref is a publicly
> visible API that needs documentation and comes with a stability
> guarantee that is more expensive to maintain than test helper
> functionality.

Does the new functionality provide a way for scripts to see if a branch is unborn (i.e. has not commits yet)? I don't think we have a way to distinguish between a ref that points to a missing object and an unborn branch at the moment.

Best Wishes
Phillip
Previous: Han-Wen NienhuysNext: Patrick Steinhardt
Message 25 of 66 in “show-ref: introduce mode to check for ref existence”
  1. 00/12 show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 24, 2023
  2. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 24, 2023
  3. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 24, 2023
  4. Eric SunshineOct 24, 2023
  5. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 24, 2023
  6. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 24, 2023
  7. Eric SunshineOct 24, 2023
  8. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 24, 2023
  9. Eric SunshineOct 24, 2023
  10. Patrick SteinhardtOct 25, 2023
  11. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 24, 2023
  12. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 24, 2023
  13. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 24, 2023
  14. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 24, 2023
  15. Eric SunshineOct 24, 2023
  16. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 24, 2023
  17. Eric SunshineOct 24, 2023
  18. Patrick SteinhardtOct 25, 2023
  19. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 24, 2023
  20. Eric SunshineOct 24, 2023
  21. Patrick SteinhardtOct 25, 2023
  22. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 24, 2023
  23. Junio C HamanoOct 24, 2023
  24. Han-Wen NienhuysOct 25, 2023
  25. Phillip WoodOct 25, 2023
  26. Patrick SteinhardtOct 26, 2023
  27. Phillip WoodOct 27, 2023
  28. Patrick SteinhardtOct 26, 2023
  29. 00/12 show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 26, 2023
  30. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 26, 2023
  31. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 26, 2023
  32. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 26, 2023
  33. Taylor BlauOct 30, 2023
  34. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 26, 2023
  35. Taylor BlauOct 30, 2023
  36. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 26, 2023
  37. Taylor BlauOct 30, 2023
  38. Patrick SteinhardtOct 31, 2023
  39. Taylor BlauOct 30, 2023
  40. Patrick SteinhardtOct 31, 2023
  41. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 26, 2023
  42. Taylor BlauOct 30, 2023
  43. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 26, 2023
  44. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 26, 2023
  45. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 26, 2023
  46. Taylor BlauOct 30, 2023
  47. Patrick SteinhardtOct 31, 2023
  48. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 26, 2023
  49. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 26, 2023
  50. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 26, 2023
  51. Taylor BlauOct 30, 2023
  52. Junio C HamanoOct 31, 2023
  53. 00/12 builtin/show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 31, 2023
  54. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 31, 2023
  55. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 31, 2023
  56. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 31, 2023
  57. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 31, 2023
  58. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 31, 2023
  59. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 31, 2023
  60. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 31, 2023
  61. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 31, 2023
  62. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 31, 2023
  63. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 31, 2023
  64. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 31, 2023
  65. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 31, 2023
  66. Taylor BlauOct 31, 2023

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