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Re: [PATCH v2 0/6] Support hashing objects larger than 4GB on Windows

From
Junio C Hamano <gitster@pobox.com>
Date
Jun 16, 2026, 16:09 UTC
Message-ID
<xmqqfr2m4gd1.fsf@gitster.g>
In-Reply-To
<pull.2138.v2.git.1781621398.gitgitgadget@gmail.com>

"Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com> writes:

> Changes since v1:
>
>  * Rebased to current master to resolve the conflicts with
>    ps/odb-source-loose
Very much appreciated.
>  * Dropped the !LONG_IS_64BIT prereq from the added/touched tests, as it is
>    now no longer needed

Good thing to do and see that the code works as well as it could, whether a long is 32-bit or 64-bit ;-).

Show 18 quoted lines
> Philip Oakley (6):
>   hash-object: demonstrate a >4GB/LLP64 problem
>   object-file.c: use size_t for header lengths
>   hash algorithms: use size_t for section lengths
>   hash-object --stdin: verify that it works with >4GB/LLP64
>   hash-object: add another >4GB/LLP64 test case
>   hash-object: add a >4GB/LLP64 test case using filtered input
>
>  object-file.c          | 14 +++++++-------
>  object-file.h          |  6 +++---
>  odb/source-files.c     |  2 +-
>  odb/source-inmemory.c  |  2 +-
>  odb/source-loose.c     |  4 ++--
>  odb/source.h           |  2 +-
>  sha1dc_git.c           |  3 +--
>  sha1dc_git.h           |  2 +-
>  t/t1007-hash-object.sh | 39 +++++++++++++++++++++++++++++++++++++++
>  9 files changed, 56 insertions(+), 18 deletions(-)
Will queue.  Thanks.
Show 12 quoted lines
>
>
> base-commit: 700432b2ba22603a0bcb71475c9c333d17c9b0d1
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-2138%2Fdscho%2FPhilipOakley%2Fhashliteral_t-v2
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-2138/dscho/PhilipOakley/hashliteral_t-v2
> Pull-Request: https://github.com/gitgitgadget/git/pull/2138
>
> Range-diff vs v1:
>
>  1:  84e1cd0aa0 = 1:  9c01bac407 hash-object: demonstrate a >4GB/LLP64 problem
>  2:  809d83e46f ! 2:  aa5859c14f object-file.c: use size_t for header lengths
>      @@ Commit message

By the way, how is range-diff driven via GGG? After applying these patches on the same base commit, my "git range-diff v1...v2" invocation punts on matching step 2 and I do not get a comparison like this unless I give --creation-factor=<large number> from the command line.

Previous: Philip Oakley via GitGitGadgetNext: Johannes Schindelin
Message 24 of 27 in “Support hashing objects larger than 4GB on Windows”
  1. 0/6 Support hashing objects larger than 4GB on WindowsJohannes Schindelin via GitGitGadget, Jun 4, 2026
  2. 1/6 hash-object: demonstrate a >4GB/LLP64 problemPhilip Oakley via GitGitGadget, Jun 4, 2026
  3. 2/6 object-file.c: use size_t for header lengthsPhilip Oakley via GitGitGadget, Jun 4, 2026
  4. Patrick SteinhardtJun 15, 2026
  5. Johannes SchindelinJun 16, 2026
  6. 3/6 hash algorithms: use size_t for section lengthsPhilip Oakley via GitGitGadget, Jun 4, 2026
  7. Patrick SteinhardtJun 15, 2026
  8. Johannes SchindelinJun 16, 2026
  9. 4/6 hash-object --stdin: verify that it works with >4GB/LLP64Philip Oakley via GitGitGadget, Jun 4, 2026
  10. Patrick SteinhardtJun 15, 2026
  11. 5/6 hash-object: add another >4GB/LLP64 test casePhilip Oakley via GitGitGadget, Jun 4, 2026
  12. Patrick SteinhardtJun 15, 2026
  13. Johannes SchindelinJun 16, 2026
  14. 6/6 hash-object: add a >4GB/LLP64 test case using filtered inputPhilip Oakley via GitGitGadget, Jun 4, 2026
  15. Philip OakleyJun 4, 2026
  16. Junio C HamanoJun 8, 2026
  17. 0/6 Support hashing objects larger than 4GB on WindowsJohannes Schindelin via GitGitGadget, Jun 16, 2026
  18. 1/6 hash-object: demonstrate a >4GB/LLP64 problemPhilip Oakley via GitGitGadget, Jun 16, 2026
  19. 2/6 object-file.c: use size_t for header lengthsPhilip Oakley via GitGitGadget, Jun 16, 2026
  20. 3/6 hash algorithms: use size_t for section lengthsPhilip Oakley via GitGitGadget, Jun 16, 2026
  21. 4/6 hash-object --stdin: verify that it works with >4GB/LLP64Philip Oakley via GitGitGadget, Jun 16, 2026
  22. 5/6 hash-object: add another >4GB/LLP64 test casePhilip Oakley via GitGitGadget, Jun 16, 2026
  23. 6/6 hash-object: add a >4GB/LLP64 test case using filtered inputPhilip Oakley via GitGitGadget, Jun 16, 2026
  24. Junio C HamanoJun 16, 2026
  25. How does GitGitGadget generate range-diffs, was Re: [PATCH v2 0/6] Support hashing objects larger than 4GB on WindowsJohannes Schindelin, Jun 17, 2026
  26. Junio C HamanoJun 17, 2026
  27. Patrick SteinhardtJun 18, 2026

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