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

Re: [PATCH v3 9/9] odb/transaction: add transaction interface to write packfiles

From
Patrick Steinhardt <ps@pks.im>
Date
Aug 17, 2026, 05:17 UTC
Message-ID
<aoKZX-eBZ7xIyHCc@pks.im>
In-Reply-To
<an8YSE8iIDXPSkH8@denethor>
On Fri, Aug 14, 2026 at 08:40:32AM -0500, Justin Tobler wrote:
Show 27 quoted lines
> On 26/08/14 10:51AM, Patrick Steinhardt wrote:
> > On Tue, Aug 11, 2026 at 12:54:15PM -0500, Justin Tobler wrote:
> > > +static unsigned int get_unpack_limit(struct repository *repo)
> > > +{
> > > +	unsigned int limit = 100;
> > > +
> > > +	repo_config_get_uint(repo, "transfer.unpacklimit", &limit);
> > > +	repo_config_get_uint(repo, "receive.unpacklimit", &limit);
> > > +
> > > +	return limit;
> > > +}
> > 
> > One thing I noticed just now: as the intention is that `write_pack()`
> > will be called for more use cases than only git-receive-pack(1) we'll
> > have to add a way to tell the callback what scenario they are running
> > in. I still think moving the unpack limit into the backend is sensible,
> > but now we're not givint it enough information.
> 
> So we already have transaction flags like ODB_TRANSACTION_RECEIVE that
> can be used to differentiate certain callers that may require slightly
> different behavior in the backend. 
> 
> In a followup series where I expand usage of odb_transaction_write_pack
> to git-fetch-pack(1), I was originally planning on using this flag and
> also adding ODB_TRANSACTION_FETCH accordingly. It's probably a good idea
> to go ahead though and start using the transaction flags here in this
> series too. Will update in the next version.

Ah, that makes sense then. And I agree, introducing that flag now already makes it a bit more obvious for how future series will look like. Thanks!

Patrick
Previous: Justin ToblerNext: Justin Tobler
Message 54 of 80 in “builtin/receive-pack: support pluggable packfile writes”
  1. 0/6 builtin/receive-pack: support pluggable packfile writesJustin Tobler, Aug 6, 2026
  2. 1/6 odb/transaction: add transaction release interfaceJustin Tobler, Aug 6, 2026
  3. Patrick SteinhardtAug 7, 2026
  4. Justin ToblerAug 7, 2026
  5. 2/6 builtin/receive-pack: pass shallow file explicitlyJustin Tobler, Aug 6, 2026
  6. Patrick SteinhardtAug 7, 2026
  7. 4/6 builtin/receive-pack: report unpack errors via strbufJustin Tobler, Aug 6, 2026
  8. Patrick SteinhardtAug 7, 2026
  9. Justin ToblerAug 7, 2026
  10. Justin ToblerAug 9, 2026
  11. Patrick SteinhardtAug 10, 2026
  12. 3/6 builtin/receive-pack: lift global state out of unpack()Justin Tobler, Aug 6, 2026
  13. Patrick SteinhardtAug 7, 2026
  14. Justin ToblerAug 7, 2026
  15. 5/6 builtin/receive-pack: explicitly pass packfile fdJustin Tobler, Aug 6, 2026
  16. 6/6 odb/transaction: add transaction interface to write packfilesJustin Tobler, Aug 6, 2026
  17. Patrick SteinhardtAug 7, 2026
  18. Justin ToblerAug 7, 2026
  19. 0/7 builtin/receive-pack: support pluggable packfile writesJustin Tobler, Aug 9, 2026
  20. 1/7 odb/transaction: add transaction finalize interfaceJustin Tobler, Aug 9, 2026
  21. Junio C HamanoAug 10, 2026
  22. Justin ToblerAug 10, 2026
  23. 2/7 builtin/receive-pack: pass shallow file explicitlyJustin Tobler, Aug 9, 2026
  24. 3/7 builtin/receive-pack: read unpack limit config lazilyJustin Tobler, Aug 9, 2026
  25. Patrick SteinhardtAug 10, 2026
  26. Justin ToblerAug 10, 2026
  27. Junio C HamanoAug 10, 2026
  28. Justin ToblerAug 10, 2026
  29. 4/7 builtin/receive-pack: lift global state out of unpack()Justin Tobler, Aug 9, 2026
  30. 5/7 builtin/receive-pack: report unpack errors via strbufJustin Tobler, Aug 9, 2026
  31. 6/7 builtin/receive-pack: explicitly pass packfile fdJustin Tobler, Aug 9, 2026
  32. 7/7 odb/transaction: add transaction interface to write packfilesJustin Tobler, Aug 9, 2026
  33. Junio C HamanoAug 10, 2026
  34. Justin ToblerAug 10, 2026
  35. Junio C HamanoAug 10, 2026
  36. Justin ToblerAug 10, 2026
  37. 0/9 builtin/receive-pack: support pluggable packfile writesJustin Tobler, Aug 11, 2026
  38. 1/9 builtin/receive-pack: properly clean up keep filesJustin Tobler, Aug 11, 2026
  39. Patrick SteinhardtAug 12, 2026
  40. Justin ToblerAug 13, 2026
  41. Patrick SteinhardtAug 14, 2026
  42. 2/9 odb/transaction: add transaction finalize interfaceJustin Tobler, Aug 11, 2026
  43. Patrick SteinhardtAug 12, 2026
  44. 3/9 builtin/receive-pack: pass shallow file explicitlyJustin Tobler, Aug 11, 2026
  45. 4/9 builtin/receive-pack: read unpack limit config lazilyJustin Tobler, Aug 11, 2026
  46. 5/9 builtin/receive-pack: lift global state out of unpack()Justin Tobler, Aug 11, 2026
  47. 6/9 builtin/receive-pack: report unpack errors via strbufJustin Tobler, Aug 11, 2026
  48. 8/9 odb: return temporary ODB source when setJustin Tobler, Aug 11, 2026
  49. Patrick SteinhardtAug 12, 2026
  50. 7/9 builtin/receive-pack: explicitly pass packfile fdJustin Tobler, Aug 11, 2026
  51. 9/9 odb/transaction: add transaction interface to write packfilesJustin Tobler, Aug 11, 2026
  52. Patrick SteinhardtAug 14, 2026
  53. Justin ToblerAug 14, 2026
  54. Patrick SteinhardtAug 17, 2026
  55. 0/9 builtin/receive-pack: support pluggable packfile writesJustin Tobler, Aug 19, 2026
  56. 1/9 builtin/receive-pack: properly clean up keep filesJustin Tobler, Aug 19, 2026
  57. Patrick SteinhardtAug 20, 2026
  58. Justin ToblerAug 20, 2026
  59. 2/9 odb/transaction: add transaction finalize interfaceJustin Tobler, Aug 19, 2026
  60. Patrick SteinhardtAug 20, 2026
  61. 3/9 builtin/receive-pack: pass shallow file explicitlyJustin Tobler, Aug 19, 2026
  62. 4/9 builtin/receive-pack: read unpack limit config lazilyJustin Tobler, Aug 19, 2026
  63. 5/9 builtin/receive-pack: lift global state out of unpack()Justin Tobler, Aug 19, 2026
  64. 6/9 builtin/receive-pack: report unpack errors via strbufJustin Tobler, Aug 19, 2026
  65. 7/9 builtin/receive-pack: explicitly pass packfile fdJustin Tobler, Aug 19, 2026
  66. 8/9 odb: return temporary ODB source when setJustin Tobler, Aug 19, 2026
  67. 9/9 odb/transaction: add transaction interface to write packfilesJustin Tobler, Aug 19, 2026
  68. Patrick SteinhardtAug 20, 2026
  69. 0/9 builtin/receive-pack: support pluggable packfile writesJustin Tobler, Aug 20, 2026
  70. 1/9 builtin/receive-pack: properly clean up keep filesJustin Tobler, Aug 20, 2026
  71. 2/9 odb/transaction: add transaction finalize interfaceJustin Tobler, Aug 20, 2026
  72. 3/9 builtin/receive-pack: pass shallow file explicitlyJustin Tobler, Aug 20, 2026
  73. 4/9 builtin/receive-pack: read unpack limit config lazilyJustin Tobler, Aug 20, 2026
  74. 5/9 builtin/receive-pack: lift global state out of unpack()Justin Tobler, Aug 20, 2026
  75. 6/9 builtin/receive-pack: report unpack errors via strbufJustin Tobler, Aug 20, 2026
  76. 8/9 odb: return temporary ODB source when setJustin Tobler, Aug 20, 2026
  77. 9/9 odb/transaction: add transaction interface to write packfilesJustin Tobler, Aug 20, 2026
  78. Junio C HamanoAug 21, 2026
  79. 7/9 builtin/receive-pack: explicitly pass packfile fdJustin Tobler, Aug 20, 2026
  80. Patrick SteinhardtAug 21, 2026

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.