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Re: [PATCH v6 6/6] refs: add GIT_REFERENCE_BACKEND to specify reference backend

From
Patrick Steinhardt <ps@pks.im>
Date
Feb 17, 2026, 10:15 UTC
Message-ID
<aZQ_0CaQG4Hhceby@pks.im>
In-Reply-To
<CAOLa=ZQFOLh6ixB4=ukPS44uE9k3-1Zw1U2bCYf+TsKyHEqLiA@mail.gmail.com>
On Tue, Feb 17, 2026 at 03:32:56AM -0600, Karthik Nayak wrote:
Show 62 quoted lines
> Patrick Steinhardt <ps@pks.im> writes:
> >> diff --git a/t/t1423-ref-backend.sh b/t/t1423-ref-backend.sh
> >> index 9912433b8c..b743c03a59 100755
> >> --- a/t/t1423-ref-backend.sh
> >> +++ b/t/t1423-ref-backend.sh
> > [snip]
> >> +test_expect_success 'initializing repository with alt ref directory' '
> >> +	test_when_finished "rm -rf repo refdir" &&
> >> +	mkdir refdir &&
> >> +	BACKEND="$(test_detect_ref_format)://$(pwd)/refdir" &&
> >> +	GIT_REFERENCE_BACKEND=$BACKEND git init repo &&
> >> +	(
> >> +		cd repo &&
> >> +
> >> +		git config get extensions.refstorage >expect &&
> >> +		echo $BACKEND >actual &&
> >> +		test_cmp expect actual &&
> >> +
> >> +		test_commit 1 &&
> >> +		test_commit 2 &&
> >> +		test_commit 3 &&
> >> +		git refs list >out &&
> >> +		test_grep "refs/tags/1"	out &&
> >> +		test_grep "refs/tags/2"	out &&
> >> +		test_grep "refs/tags/3"	out
> >> +	)
> >> +'
> >
> > Should we also verify that the refdir contains the data and that the
> > repository only contains stubs?
> >
> >> +test_expect_success 'cloning repository with alt ref directory' '
> >> +	test_when_finished "rm -rf source repo refdir" &&
> >> +	mkdir refdir &&
> >> +
> >> +	git init source &&
> >> +	test_commit -C source 1 &&
> >> +	test_commit -C source 2 &&
> >> +	test_commit -C source 3 &&
> >> +
> >> +	BACKEND="$(test_detect_ref_format)://$(pwd)/refdir" &&
> >> +	GIT_REFERENCE_BACKEND=$BACKEND git clone source repo &&
> >> +
> >> +	git -C repo config get extensions.refstorage >expect &&
> >> +	echo $BACKEND >actual &&
> >> +	test_cmp expect actual &&
> >> +
> >> +	git -C source for-each-ref refs/tags/ >expect &&
> >> +	git -C repo for-each-ref refs/tags/ >actual &&
> >> +	test_cmp expect actual
> >> +'
> >> +
> >
> > Same question here.
> >
> > Thanks!
> >
> > Patrick
> 
> We can verify that the repository only contains stubs, but to verify
> that the refdir contains the data, we'd have to add backend specific
> logic, I'm not sure that is the way to go.

I mean all of this very much is backend-specific, but I think that it's sensible to at least verify some of the basics here. Otherwise it might silently do the wrong thing, and we'd never notice because we haven't been testing for it.

Patrick
Previous: Karthik NayakNext: Toon Claes
Message 74 of 101 in “refs: allow setting the reference directory”
  1. 0/2 refs: allow setting the reference directoryKarthik Nayak, Nov 19, 2025
  2. 1/2 refs: support obtaining ref_store for given dirKarthik Nayak, Nov 19, 2025
  3. Justin ToblerNov 20, 2025
  4. Karthik NayakNov 21, 2025
  5. 2/2 refs: add GIT_REF_URI to specify reference backend and directoryKarthik Nayak, Nov 19, 2025
  6. Eric SunshineNov 19, 2025
  7. Karthik NayakNov 19, 2025
  8. Jean-Noël AvilaNov 20, 2025
  9. Karthik NayakNov 21, 2025
  10. Justin ToblerNov 20, 2025
  11. Karthik NayakNov 24, 2025
  12. Toon ClaesNov 21, 2025
  13. Junio C HamanoNov 21, 2025
  14. Karthik NayakNov 24, 2025
  15. Toon ClaesNov 26, 2025
  16. Karthik NayakNov 24, 2025
  17. Patrick SteinhardtDec 1, 2025
  18. Karthik NayakDec 2, 2025
  19. Junio C HamanoNov 23, 2025
  20. Patrick SteinhardtDec 1, 2025
  21. Junio C HamanoDec 2, 2025
  22. Karthik NayakDec 2, 2025
  23. 0/4 refs: allow setting the reference directoryKarthik Nayak, Feb 2, 2026
  24. 1/4 refs: allow reference location in refstorage configKarthik Nayak, Feb 2, 2026
  25. Patrick SteinhardtFeb 6, 2026
  26. Karthik NayakFeb 9, 2026
  27. 2/4 refs: extract out `refs_create_refdir_stubs()`Karthik Nayak, Feb 2, 2026
  28. Patrick SteinhardtFeb 6, 2026
  29. Karthik NayakFeb 9, 2026
  30. 3/4 refs: parse and use the reference storage payloadKarthik Nayak, Feb 2, 2026
  31. Patrick SteinhardtFeb 6, 2026
  32. Karthik NayakFeb 9, 2026
  33. 4/4 refs: add GIT_REFERENCE_BACKEND to specify reference backendKarthik Nayak, Feb 2, 2026
  34. Patrick SteinhardtFeb 6, 2026
  35. Karthik NayakFeb 9, 2026
  36. Patrick SteinhardtFeb 6, 2026
  37. Junio C HamanoFeb 6, 2026
  38. Karthik NayakFeb 9, 2026
  39. 0/4 refs: allow setting the reference directoryKarthik Nayak, Feb 9, 2026
  40. 1/4 refs: extract out `refs_create_refdir_stubs()`Karthik Nayak, Feb 9, 2026
  41. 2/4 refs: forward and use the reference storage payloadKarthik Nayak, Feb 9, 2026
  42. Patrick SteinhardtFeb 9, 2026
  43. Karthik NayakFeb 10, 2026
  44. Jeff KingFeb 10, 2026
  45. Karthik NayakFeb 13, 2026
  46. Jeff KingFeb 15, 2026
  47. 3/4 refs: allow reference location in refstorage configKarthik Nayak, Feb 9, 2026
  48. Patrick SteinhardtFeb 9, 2026
  49. Karthik NayakFeb 10, 2026
  50. Jeff KingFeb 10, 2026
  51. Karthik NayakFeb 11, 2026
  52. 4/4 refs: add GIT_REFERENCE_BACKEND to specify reference backendKarthik Nayak, Feb 9, 2026
  53. Patrick SteinhardtFeb 9, 2026
  54. Junio C HamanoFeb 9, 2026
  55. Karthik NayakFeb 10, 2026
  56. Junio C HamanoFeb 10, 2026
  57. 0/6 refs: allow setting the reference directoryKarthik Nayak, Feb 14, 2026
  58. 1/6 setup: don't modify repo in `create_reference_database()`Karthik Nayak, Feb 14, 2026
  59. Patrick SteinhardtFeb 17, 2026
  60. Karthik NayakFeb 17, 2026
  61. 2/6 refs: extract out `refs_create_refdir_stubs()`Karthik Nayak, Feb 14, 2026
  62. 3/6 refs: receive and use the reference storage payloadKarthik Nayak, Feb 14, 2026
  63. Patrick SteinhardtFeb 17, 2026
  64. Karthik NayakFeb 17, 2026
  65. 4/6 refs: move out stub modification to generic layerKarthik Nayak, Feb 14, 2026
  66. Patrick SteinhardtFeb 17, 2026
  67. Karthik NayakFeb 17, 2026
  68. Toon ClaesFeb 18, 2026
  69. Karthik NayakFeb 19, 2026
  70. 5/6 refs: allow reference location in refstorage configKarthik Nayak, Feb 14, 2026
  71. 6/6 refs: add GIT_REFERENCE_BACKEND to specify reference backendKarthik Nayak, Feb 14, 2026
  72. Patrick SteinhardtFeb 17, 2026
  73. Karthik NayakFeb 17, 2026
  74. Patrick SteinhardtFeb 17, 2026
  75. Toon ClaesFeb 18, 2026
  76. Karthik NayakFeb 19, 2026
  77. 0/6 refs: allow setting the reference directoryKarthik Nayak, Feb 23, 2026
  78. 1/6 setup: don't modify repo in `create_reference_database()`Karthik Nayak, Feb 23, 2026
  79. 2/6 refs: extract out `refs_create_refdir_stubs()`Karthik Nayak, Feb 23, 2026
  80. 3/6 refs: move out stub modification to generic layerKarthik Nayak, Feb 23, 2026
  81. 4/6 refs: receive and use the reference storage payloadKarthik Nayak, Feb 23, 2026
  82. 5/6 refs: allow reference location in refstorage configKarthik Nayak, Feb 23, 2026
  83. Kristoffer HaugsbakkFeb 23, 2026
  84. Karthik NayakFeb 24, 2026
  85. Kristoffer HaugsbakkFeb 24, 2026
  86. Karthik NayakFeb 24, 2026
  87. 6/6 refs: add GIT_REFERENCE_BACKEND to specify reference backendKarthik Nayak, Feb 23, 2026
  88. Toon ClaesFeb 25, 2026
  89. Karthik NayakFeb 25, 2026
  90. Patrick SteinhardtFeb 23, 2026
  91. Karthik NayakFeb 23, 2026
  92. Junio C HamanoFeb 23, 2026
  93. Karthik NayakFeb 25, 2026
  94. 0/6 refs: allow setting the reference directoryKarthik Nayak, Feb 25, 2026
  95. 1/6 setup: don't modify repo in `create_reference_database()`Karthik Nayak, Feb 25, 2026
  96. 2/6 refs: extract out `refs_create_refdir_stubs()`Karthik Nayak, Feb 25, 2026
  97. 3/6 refs: move out stub modification to generic layerKarthik Nayak, Feb 25, 2026
  98. 4/6 refs: receive and use the reference storage payloadKarthik Nayak, Feb 25, 2026
  99. 5/6 refs: allow reference location in refstorage configKarthik Nayak, Feb 25, 2026
  100. Junio C HamanoFeb 25, 2026
  101. 6/6 refs: add GIT_REFERENCE_BACKEND to specify reference backendKarthik Nayak, Feb 25, 2026

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