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Re: [PATCH v3 4/5] promisor-remote: prevent infinite recursion when lazy fetching

From
Junio C Hamano <gitster@pobox.com>
Date
Sep 9, 2026, 21:39 UTC
Message-ID
<xmqqa4pqp0j2.fsf@gitster.g>
In-Reply-To
<CAP8UFD0WUQX4ts_US2Ehdp7hBmEs1_ztjJiGJMYA2ek4awduMg@mail.gmail.com>
Christian Couder <christian.couder@gmail.com> writes:
Show 12 quoted lines
> I agree that using a plain "int" seems like the most straightforward,
> but we don't have git_env_int() while we have git_env_ulong().
>
> So would you be fine with something like:
>
>     int depth = (int)git_env_ulong(LAZY_FETCH_DEPTH_ENVIRONMENT, 0);
>
> which is similar to the following in builtin/pack-objects.c:
>
>     name_hash_version = (int)git_env_ulong("GIT_TEST_NAME_HASH_VERSION", 1);
>
> ? Or do you think it's time to introduce git_env_int() in a preparatory patch?

There are 13 existing callers, among which one that you found explicitly casts to int, but many others make assignments with implicit cast (e.g., members of bloom_settings used in commit-graph.c are of type uint32_t), and config.c reads GIT_TEST_INDEX_THREADS into an "int val" with implicit cast. progress.c:get_defalut_delay() does the same.

So I would say that it is up to you to pile on existing technical debt by mimicking config.c:repo_config_get_index_threads() and progress.c:get_default_delay(), or audit all callers of git_env_ulong() and migrate appropriate ones among them to use git_env_int(). From my cursory survey, I suspect that not many callers of git_get_ulong() would survive.

Thanks.
Previous: Christian CouderNext: Christian Couder
Message 32 of 70 in “Introduce a 'fromAccepted' option to GIT_NO_LAZY_FETCH”
  1. 0/3 Introduce a 'fromAccepted' option to GIT_NO_LAZY_FETCHChristian Couder, Jul 10, 2026
  2. 1/3 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Jul 10, 2026
  3. 2/3 promisor-remote: introduce enum allow_lazy_fetchChristian Couder, Jul 10, 2026
  4. 3/3 promisor-remote: teach 'fromAccepted' to GIT_NO_LAZY_FETCHChristian Couder, Jul 10, 2026
  5. brian m. carlsonJul 10, 2026
  6. Christian CouderJul 12, 2026
  7. 0/5 Introduce 'uploadpack.lazyFetchTrusted'Christian Couder, Aug 7, 2026
  8. 1/5 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Aug 7, 2026
  9. Christian CouderAug 7, 2026
  10. 2/5 setup: extract path_allowlist_apply()Christian Couder, Aug 7, 2026
  11. 4/5 upload-pack: read uploadpack.lazyFetchTrustedChristian Couder, Aug 7, 2026
  12. 5/5 builtin/upload-pack: set GIT_NO_LAZY_FETCH to 0 on trusted repoChristian Couder, Aug 7, 2026
  13. 3/5 setup: add 'allow_dot' arg to path_allowlist_apply()Christian Couder, Aug 7, 2026
  14. Junio C HamanoAug 7, 2026
  15. Christian CouderAug 10, 2026
  16. Junio C HamanoAug 11, 2026
  17. 0/5 Introduce 'uploadpack.lazyFetchTrusted'Christian Couder, Aug 13, 2026
  18. Junio C HamanoAug 13, 2026
  19. Christian CouderAug 14, 2026
  20. Junio C HamanoAug 14, 2026
  21. 0/5 Introduce 'uploadpack.lazyFetchTrusted'Christian Couder, Sep 8, 2026
  22. 1/5 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Sep 8, 2026
  23. Junio C HamanoSep 8, 2026
  24. Christian CouderSep 28, 2026
  25. 2/5 setup: extract path_allowlist_apply()Christian Couder, Sep 8, 2026
  26. Junio C HamanoSep 8, 2026
  27. Christian CouderSep 28, 2026
  28. 3/5 upload-pack: read uploadpack.lazyFetchTrustedChristian Couder, Sep 8, 2026
  29. 4/5 promisor-remote: prevent infinite recursion when lazy fetchingChristian Couder, Sep 8, 2026
  30. Junio C HamanoSep 8, 2026
  31. Christian CouderSep 9, 2026
  32. Junio C HamanoSep 9, 2026
  33. Christian CouderSep 28, 2026
  34. 5/5 builtin/upload-pack: set GIT_NO_LAZY_FETCH to 0 on trusted repoChristian Couder, Sep 8, 2026
  35. Junio C HamanoSep 8, 2026
  36. Christian CouderSep 28, 2026
  37. 0/5 Introduce 'uploadpack.lazyFetchTrusted'Christian Couder, Sep 28, 2026
  38. 1/5 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Sep 28, 2026
  39. 2/5 setup: extract path_allowlist_apply()Christian Couder, Sep 28, 2026
  40. Junio C HamanoSep 29, 2026
  41. Christian CouderOct 2, 2026
  42. 3/5 upload-pack: read uploadpack.lazyFetchTrustedChristian Couder, Sep 28, 2026
  43. 4/5 promisor-remote: prevent infinite recursion when lazy fetchingChristian Couder, Sep 28, 2026
  44. 5/5 builtin/upload-pack: don't disable lazy fetching on trusted repoChristian Couder, Sep 28, 2026
  45. Junio C HamanoSep 29, 2026
  46. Christian CouderOct 2, 2026
  47. Christian CouderOct 2, 2026
  48. 0/5 Introduce 'uploadpack.lazyFetchTrusted'Christian Couder, Oct 2, 2026
  49. 1/5 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Oct 2, 2026
  50. 2/5 setup: extract path_allowlist_apply()Christian Couder, Oct 2, 2026
  51. 3/5 upload-pack: read uploadpack.lazyFetchTrustedChristian Couder, Oct 2, 2026
  52. 4/5 promisor-remote: prevent infinite recursion when lazy fetchingChristian Couder, Oct 2, 2026
  53. 5/5 builtin/upload-pack: don't disable lazy fetching on trusted repoChristian Couder, Oct 2, 2026
  54. Junio C HamanoOct 5, 2026
  55. Christian CouderOct 6, 2026
  56. 1/5 promisor-remote: factor out lazy_fetch_objects()Christian Couder, Aug 13, 2026
  57. Junio C HamanoAug 14, 2026
  58. Christian CouderSep 8, 2026
  59. 2/5 setup: extract path_allowlist_apply()Christian Couder, Aug 13, 2026
  60. Junio C HamanoAug 14, 2026
  61. Christian CouderSep 8, 2026
  62. Junio C HamanoSep 8, 2026
  63. 3/5 setup: add 'allow_dot' arg to path_allowlist_apply()Christian Couder, Aug 13, 2026
  64. Junio C HamanoAug 14, 2026
  65. Christian CouderSep 8, 2026
  66. 4/5 upload-pack: read uploadpack.lazyFetchTrustedChristian Couder, Aug 13, 2026
  67. Junio C HamanoAug 14, 2026
  68. 5/5 builtin/upload-pack: set GIT_NO_LAZY_FETCH to 0 on trusted repoChristian Couder, Aug 13, 2026
  69. Junio C HamanoAug 14, 2026
  70. Christian CouderSep 8, 2026

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