git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [PATCH v3 0/6] Create commit-graph file format v2

From
Christian Couder <christian.couder@gmail.com>
Date
May 6, 2019, 08:27 UTC
Message-ID
<CAP8UFD2tnkNfgjm=H__=YPG-+BuOHwHs9=OoXnL9wnj_eOtbQg@mail.gmail.com>
In-Reply-To
<87bm0jirjj.fsf@evledraar.gmail.com>
On Fri, May 3, 2019 at 3:44 PM Ævar Arnfjörð Bjarmason <avarab@gmail.com> wrote:
Show 11 quoted lines
>
>
> On Fri, May 03 2019, Derrick Stolee wrote:
>
> > On 5/2/2019 2:02 PM, Ævar Arnfjörð Bjarmason wrote:
> >>
> >> But those are separate from any back-compat concerns, which is what I
> >> think makes sense to focus on now.
> >
> > Thinking more on this topic, I think I have a way to satisfy _all_ of
> > your concerns by simplifying the plan for incremental commit-graph files.
[...]
Show 11 quoted lines
> Just on this, consider storing them in
> .git/objects/info/commit-graphs/commit-graph-<THIS-FILE'S-CHECKSUM-SHA1>,
> because:
>
> 1) We can stat() the "commit-graphs" directory to see if there's any
>    new/deleted ones (dir mtime changed), similar to what we do for the
>    untracked cache, and can (but I don't think we do...) do for packs/*
>    and objects/??/.
>
>    As opposed to ".git/objects/info" itself which e.g. has the "packs",
>    "alternates" etc. files (can still do it, but more false positives)

About incremental commit-graph files and alternates, I wonder if they could work well together. The main use case would be for servers that use a common repo for all the forks.

Previous: Ævar Arnfjörð BjarmasonNext: Derrick Stolee
Message 51 of 89 in “Create commit-graph file format v2”
  1. 0/6 Create commit-graph file format v2Derrick Stolee via GitGitGadget, Jan 23, 2019
  2. 1/6 commit-graph: return with errors during writeDerrick Stolee via GitGitGadget, Jan 23, 2019
  3. 2/6 commit-graph: collapse parameters into flagsDerrick Stolee via GitGitGadget, Jan 23, 2019
  4. 5/6 commit-graph: implement file format version 2Derrick Stolee via GitGitGadget, Jan 23, 2019
  5. Jonathan TanJan 23, 2019
  6. Ævar Arnfjörð BjarmasonJan 24, 2019
  7. Derrick StoleeJan 24, 2019
  8. Ævar Arnfjörð BjarmasonMar 21, 2019
  9. 4/6 commit-graph: add --version=<n> optionDerrick Stolee via GitGitGadget, Jan 23, 2019
  10. Ævar Arnfjörð BjarmasonJan 24, 2019
  11. 6/6 commit-graph: test verifying a corrupt v2 headerDerrick Stolee via GitGitGadget, Jan 23, 2019
  12. Jonathan TanJan 23, 2019
  13. 3/6 commit-graph: create new version flagsDerrick Stolee via GitGitGadget, Jan 23, 2019
  14. Junio C HamanoJan 24, 2019
  15. Junio C HamanoJan 24, 2019
  16. Derrick StoleeJan 25, 2019
  17. 0/5 Create commit-graph file format v2Derrick Stolee via GitGitGadget, Apr 24, 2019
  18. 1/5 commit-graph: return with errors during writeDerrick Stolee via GitGitGadget, Apr 24, 2019
  19. 2/5 commit-graph: collapse parameters into flagsDerrick Stolee via GitGitGadget, Apr 24, 2019
  20. Junio C HamanoApr 25, 2019
  21. 3/5 commit-graph: create new version flagsDerrick Stolee via GitGitGadget, Apr 24, 2019
  22. Junio C HamanoApr 25, 2019
  23. Derrick StoleeApr 25, 2019
  24. Ævar Arnfjörð BjarmasonApr 25, 2019
  25. Junio C HamanoApr 26, 2019
  26. 4/5 commit-graph: add --version=<n> optionDerrick Stolee via GitGitGadget, Apr 24, 2019
  27. 5/5 commit-graph: implement file format version 2Derrick Stolee via GitGitGadget, Apr 24, 2019
  28. Ævar Arnfjörð BjarmasonApr 25, 2019
  29. Junio C HamanoApr 26, 2019
  30. Ævar Arnfjörð BjarmasonApr 26, 2019
  31. Derrick StoleeApr 26, 2019
  32. Ævar Arnfjörð BjarmasonApr 26, 2019
  33. Ævar Arnfjörð BjarmasonApr 27, 2019
  34. 0/6 Create commit-graph file format v2Derrick Stolee via GitGitGadget, May 1, 2019
  35. 1/6 commit-graph: return with errors during writeDerrick Stolee via GitGitGadget, May 1, 2019
  36. Ævar Arnfjörð BjarmasonMay 1, 2019
  37. 2/6 commit-graph: collapse parameters into flagsDerrick Stolee via GitGitGadget, May 1, 2019
  38. 3/6 commit-graph: create new version parameterDerrick Stolee via GitGitGadget, May 1, 2019
  39. 5/6 commit-graph: implement file format version 2Derrick Stolee via GitGitGadget, May 1, 2019
  40. Ævar Arnfjörð BjarmasonMay 1, 2019
  41. Derrick StoleeMay 1, 2019
  42. 4/6 commit-graph: add --version=<n> optionDerrick Stolee via GitGitGadget, May 1, 2019
  43. 6/6 commit-graph: remove Future Work sectionDerrick Stolee via GitGitGadget, May 1, 2019
  44. Ævar Arnfjörð BjarmasonMay 1, 2019
  45. Derrick StoleeMay 1, 2019
  46. Ævar Arnfjörð BjarmasonMay 1, 2019
  47. Derrick StoleeMay 2, 2019
  48. Ævar Arnfjörð BjarmasonMay 2, 2019
  49. Derrick StoleeMay 3, 2019
  50. Ævar Arnfjörð BjarmasonMay 3, 2019
  51. Christian CouderMay 6, 2019
  52. Derrick StoleeMay 6, 2019
  53. SZEDER GáborMay 3, 2019
  54. Derrick StoleeMay 3, 2019
  55. 00/11 Commit-graph write refactor (was: Create commit-graph file format v2)Derrick Stolee via GitGitGadget, May 9, 2019
  56. 01/11 commit-graph: fix the_repository referenceDerrick Stolee via GitGitGadget, May 9, 2019
  57. Junio C HamanoMay 13, 2019
  58. 02/11 commit-graph: return with errors during writeDerrick Stolee via GitGitGadget, May 9, 2019
  59. Junio C HamanoMay 13, 2019
  60. Derrick StoleeMay 13, 2019
  61. Derrick StoleeMay 13, 2019
  62. 04/11 commit-graph: remove Future Work sectionDerrick Stolee via GitGitGadget, May 9, 2019
  63. 03/11 commit-graph: collapse parameters into flagsDerrick Stolee via GitGitGadget, May 9, 2019
  64. Junio C HamanoMay 13, 2019
  65. Derrick StoleeMay 13, 2019
  66. 08/11 commit-graph: extract fill_oids_from_all_packs()Derrick Stolee via GitGitGadget, May 9, 2019
  67. 06/11 commit-graph: extract fill_oids_from_packs()Derrick Stolee via GitGitGadget, May 9, 2019
  68. Junio C HamanoMay 13, 2019
  69. 05/11 commit-graph: create write_commit_graph_contextDerrick Stolee via GitGitGadget, May 9, 2019
  70. 10/11 commit-graph: extract copy_oids_to_commits()Derrick Stolee via GitGitGadget, May 9, 2019
  71. 11/11 commit-graph: extract write_commit_graph_file()Derrick Stolee via GitGitGadget, May 9, 2019
  72. Junio C HamanoMay 13, 2019
  73. 09/11 commit-graph: extract count_distinct_commits()Derrick Stolee via GitGitGadget, May 9, 2019
  74. 07/11 commit-graph: extract fill_oids_from_commit_hex()Derrick Stolee via GitGitGadget, May 9, 2019
  75. Josh SteadmonMay 9, 2019
  76. 00/11 Commit-graph write refactor (was: Create commit-graph file format v2)Derrick Stolee via GitGitGadget, Jun 12, 2019
  77. 01/11 commit-graph: fix the_repository referenceDerrick Stolee via GitGitGadget, Jun 12, 2019
  78. 03/11 commit-graph: collapse parameters into flagsDerrick Stolee via GitGitGadget, Jun 12, 2019
  79. 02/11 commit-graph: return with errors during writeDerrick Stolee via GitGitGadget, Jun 12, 2019
  80. SZEDER GáborJun 29, 2019
  81. Derrick StoleeJul 1, 2019
  82. 04/11 commit-graph: remove Future Work sectionDerrick Stolee via GitGitGadget, Jun 12, 2019
  83. 05/11 commit-graph: create write_commit_graph_contextDerrick Stolee via GitGitGadget, Jun 12, 2019
  84. 08/11 commit-graph: extract fill_oids_from_all_packs()Derrick Stolee via GitGitGadget, Jun 12, 2019
  85. 06/11 commit-graph: extract fill_oids_from_packs()Derrick Stolee via GitGitGadget, Jun 12, 2019
  86. 10/11 commit-graph: extract copy_oids_to_commits()Derrick Stolee via GitGitGadget, Jun 12, 2019
  87. 07/11 commit-graph: extract fill_oids_from_commit_hex()Derrick Stolee via GitGitGadget, Jun 12, 2019
  88. 11/11 commit-graph: extract write_commit_graph_file()Derrick Stolee via GitGitGadget, Jun 12, 2019
  89. 09/11 commit-graph: extract count_distinct_commits()Derrick Stolee via GitGitGadget, Jun 12, 2019

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.