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Re: [PATCH 6/9] commit-graph: store the hash algorithm instead of its length

From
Taylor Blau <me@ttaylorr.com>
Date
Aug 4, 2025, 22:07 UTC
Message-ID
<aJEvEB0DXcnmwme8@nand.local>
In-Reply-To
<20250804-b4-pks-commit-graph-wo-the-repository-v1-6-850d626eb2e8@pks.im>
On Mon, Aug 04, 2025 at 10:17:22AM +0200, Patrick Steinhardt wrote:
Show 12 quoted lines
> The commit-graph stores the length of the hash algorithm it uses. In
> subsequent commits we'll need to pass the whole hash algorithm around
> though, which we currently don't have access to.
>
> Refactor the code so that we store the hash algorithm instead of only
> its size.
>
> Signed-off-by: Patrick Steinhardt <ps@pks.im>
> ---
>  commit-graph.c | 36 ++++++++++++++++++------------------
>  commit-graph.h |  2 +-
>  2 files changed, 19 insertions(+), 19 deletions(-)

Also makes sense. I briefly wondered about hash version mismatches, but parse_commit_graph() already covers us here by comparing the hash_version field written in the commit-graph's header against oid_version(the_hash_algo).

Thanks, Taylor

Previous: Patrick SteinhardtNext: Patrick Steinhardt
Message 26 of 69 in “commit-graph: remove reliance on global state”
  1. 0/9 commit-graph: remove reliance on global statePatrick Steinhardt, Aug 4, 2025
  2. 1/9 trace2: introduce function to trace unsigned integersPatrick Steinhardt, Aug 4, 2025
  3. Taylor BlauAug 4, 2025
  4. 2/9 commit-graph: stop using signed integers to count bloom filtersPatrick Steinhardt, Aug 4, 2025
  5. Oswald BuddenhagenAug 4, 2025
  6. Patrick SteinhardtAug 4, 2025
  7. Junio C HamanoAug 4, 2025
  8. Taylor BlauAug 4, 2025
  9. Patrick SteinhardtAug 6, 2025
  10. Oswald BuddenhagenAug 6, 2025
  11. Junio C HamanoAug 6, 2025
  12. Junio C HamanoAug 6, 2025
  13. Patrick SteinhardtAug 7, 2025
  14. Junio C HamanoAug 7, 2025
  15. Patrick SteinhardtAug 11, 2025
  16. Junio C HamanoAug 5, 2025
  17. Taylor BlauAug 4, 2025
  18. 3/9 commit-graph: fix type for some write optionsPatrick Steinhardt, Aug 4, 2025
  19. Taylor BlauAug 4, 2025
  20. 4/9 commit-graph: fix sign comparison warningsPatrick Steinhardt, Aug 4, 2025
  21. Taylor BlauAug 4, 2025
  22. Patrick SteinhardtAug 6, 2025
  23. 5/9 commit-graph: stop using `the_hash_algo` via macrosPatrick Steinhardt, Aug 4, 2025
  24. Taylor BlauAug 4, 2025
  25. 6/9 commit-graph: store the hash algorithm instead of its lengthPatrick Steinhardt, Aug 4, 2025
  26. Taylor BlauAug 4, 2025
  27. 7/9 commit-graph: stop using `the_hash_algo`Patrick Steinhardt, Aug 4, 2025
  28. Taylor BlauAug 4, 2025
  29. Patrick SteinhardtAug 6, 2025
  30. 8/9 commit-graph: stop using `the_repository`Patrick Steinhardt, Aug 4, 2025
  31. Taylor BlauAug 4, 2025
  32. 9/9 commit-graph: stop passing in redundant repositoryPatrick Steinhardt, Aug 4, 2025
  33. Derrick StoleeAug 5, 2025
  34. Patrick SteinhardtAug 6, 2025
  35. 00/10 commit-graph: remove reliance on global statePatrick Steinhardt, Aug 6, 2025
  36. 01/10 trace2: introduce function to trace unsigned integersPatrick Steinhardt, Aug 6, 2025
  37. 02/10 commit-graph: stop using signed integers to count Bloom filtersPatrick Steinhardt, Aug 6, 2025
  38. 03/10 commit-graph: fix type for some write optionsPatrick Steinhardt, Aug 6, 2025
  39. Oswald BuddenhagenAug 6, 2025
  40. Junio C HamanoAug 6, 2025
  41. Patrick SteinhardtAug 7, 2025
  42. 04/10 commit-graph: fix sign comparison warningsPatrick Steinhardt, Aug 6, 2025
  43. 05/10 commit-graph: stop using `the_hash_algo` via macrosPatrick Steinhardt, Aug 6, 2025
  44. 06/10 commit-graph: store the hash algorithm instead of its lengthPatrick Steinhardt, Aug 6, 2025
  45. 07/10 commit-graph: refactor `parse_commit_graph()` to take a repositoryPatrick Steinhardt, Aug 6, 2025
  46. 08/10 commit-graph: stop using `the_hash_algo`Patrick Steinhardt, Aug 6, 2025
  47. 09/10 commit-graph: stop using `the_repository`Patrick Steinhardt, Aug 6, 2025
  48. 10/10 commit-graph: stop passing in redundant repositoryPatrick Steinhardt, Aug 6, 2025
  49. 00/10 commit-graph: remove reliance on global statePatrick Steinhardt, Aug 7, 2025
  50. 01/10 trace2: introduce function to trace unsigned integersPatrick Steinhardt, Aug 7, 2025
  51. 02/10 commit-graph: stop using signed integers to count Bloom filtersPatrick Steinhardt, Aug 7, 2025
  52. 03/10 commit-graph: fix type for some write optionsPatrick Steinhardt, Aug 7, 2025
  53. Junio C HamanoAug 7, 2025
  54. Patrick SteinhardtAug 11, 2025
  55. 04/10 commit-graph: fix sign comparison warningsPatrick Steinhardt, Aug 7, 2025
  56. 05/10 commit-graph: stop using `the_hash_algo` via macrosPatrick Steinhardt, Aug 7, 2025
  57. 06/10 commit-graph: store the hash algorithm instead of its lengthPatrick Steinhardt, Aug 7, 2025
  58. 07/10 commit-graph: refactor `parse_commit_graph()` to take a repositoryPatrick Steinhardt, Aug 7, 2025
  59. 08/10 commit-graph: stop using `the_hash_algo`Patrick Steinhardt, Aug 7, 2025
  60. 09/10 commit-graph: stop using `the_repository`Patrick Steinhardt, Aug 7, 2025
  61. 10/10 commit-graph: stop passing in redundant repositoryPatrick Steinhardt, Aug 7, 2025
  62. 0/6 commit-graph: remove reliance on global statePatrick Steinhardt, Aug 15, 2025
  63. 1/6 commit-graph: stop using `the_hash_algo` via macrosPatrick Steinhardt, Aug 15, 2025
  64. 2/6 commit-graph: store the hash algorithm instead of its lengthPatrick Steinhardt, Aug 15, 2025
  65. 3/6 commit-graph: refactor `parse_commit_graph()` to take a repositoryPatrick Steinhardt, Aug 15, 2025
  66. 4/6 commit-graph: stop using `the_hash_algo`Patrick Steinhardt, Aug 15, 2025
  67. 5/6 commit-graph: stop using `the_repository`Patrick Steinhardt, Aug 15, 2025
  68. 6/6 commit-graph: stop passing in redundant repositoryPatrick Steinhardt, Aug 15, 2025
  69. Derrick StoleeAug 15, 2025

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