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Re: [PATCH 00/18] Support symbolic links on Windows

From
Junio C Hamano <gitster@pobox.com>
Date
Dec 18, 2025, 00:00 UTC
Message-ID
<xmqqpl8czmke.fsf@gitster.g>
In-Reply-To
<pull.2018.git.1765980535.gitgitgadget@gmail.com>

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

> This finally upstreams Git for Windows' support for Windows' branch of
> symbolic links, which has been maturing since 2015. It is based off of
> js/prep-symlink-windows.

The three topics taken together touch 19 paths in total, about a half of which are t/ test files.

I've read the changes to generic parts (i.e., outside compat/) and saw nothing questionable. Very nicely done.

Thanks.
 apply.c                             |   2 +-
 compat/mingw-posix.h                |   6 +-
 compat/mingw.c                      | 667 +++++++++++++++++++++++++++---------
 compat/win32.h                      |   6 +-
 compat/win32/dirent.c               |   5 +-
 environment.c                       |   4 +-
 environment.h                       |   2 +
 lockfile.c                          |   4 +-
 read-cache.c                        |  11 +
 setup.c                             |   2 +-
 strbuf.c                            |  10 +-
 t/t0001-init.sh                     |   6 +-
 t/t0301-credential-cache.sh         |   3 +-
 t/t0600-reffiles-backend.sh         |   2 +-
 t/t1006-cat-file.sh                 |  24 +-
 t/t1305-config-include.sh           |   4 +-
 t/t6423-merge-rename-directories.sh |   9 +-
 t/t7800-difftool.sh                 |   8 +-
 t/t9700/test.pl                     |   9 +-
 19 files changed, 585 insertions(+), 199 deletions(-)
Previous: Johannes Schindelin via GitGitGadgetNext: Johannes Sixt
Message 30 of 51 in “Support symbolic links on Windows”
  1. 00/18 Support symbolic links on WindowsJohannes Schindelin via GitGitGadget, Dec 17, 2025
  2. 01/18 mingw: don't call `GetFileAttributes()` twice in `mingw_lstat()`Karsten Blees via GitGitGadget, Dec 17, 2025
  3. Johannes SixtDec 18, 2025
  4. 02/18 mingw: implement `stat()` with symlink supportKarsten Blees via GitGitGadget, Dec 17, 2025
  5. Johannes SixtDec 18, 2025
  6. Johannes SchindelinJan 9, 2026
  7. 03/18 mingw: drop the separate `do_lstat()` functionKarsten Blees via GitGitGadget, Dec 17, 2025
  8. Johannes SixtDec 18, 2025
  9. 04/18 mingw: let `mingw_lstat()` error early upon problems with reparse pointsKarsten Blees via GitGitGadget, Dec 17, 2025
  10. 05/18 mingw: teach dirent about symlinksKarsten Blees via GitGitGadget, Dec 17, 2025
  11. 06/18 mingw: compute the correct size for symlinks in `mingw_lstat()`Bill Zissimopoulos via GitGitGadget, Dec 17, 2025
  12. 07/18 mingw: factor out the retry logicKarsten Blees via GitGitGadget, Dec 17, 2025
  13. 08/18 mingw: change default of `core.symlinks` to falseKarsten Blees via GitGitGadget, Dec 17, 2025
  14. 09/18 mingw: add symlink-specific error codesKarsten Blees via GitGitGadget, Dec 17, 2025
  15. 10/18 mingw: handle symlinks to directories in `mingw_unlink()`Karsten Blees via GitGitGadget, Dec 17, 2025
  16. Ben KnobleDec 18, 2025
  17. Johannes SchindelinJan 9, 2026
  18. 11/18 mingw: support renaming symlinksKarsten Blees via GitGitGadget, Dec 17, 2025
  19. Johannes SixtDec 18, 2025
  20. Johannes SchindelinJan 9, 2026
  21. 12/18 mingw: allow `mingw_chdir()` to change to symlink-resolved directoriesKarsten Blees via GitGitGadget, Dec 17, 2025
  22. 13/18 mingw: implement `readlink()`Karsten Blees via GitGitGadget, Dec 17, 2025
  23. Johannes SixtDec 18, 2025
  24. Johannes SchindelinJan 9, 2026
  25. 14/18 mingw: implement basic `symlink()` functionality (file symlinks only)Karsten Blees via GitGitGadget, Dec 17, 2025
  26. 15/18 mingw: add support for symlinks to directoriesKarsten Blees via GitGitGadget, Dec 17, 2025
  27. 16/18 mingw: try to create symlinks without elevated permissionsJohannes Schindelin via GitGitGadget, Dec 17, 2025
  28. 17/18 mingw: emulate `stat()` a little more faithfullyJohannes Schindelin via GitGitGadget, Dec 17, 2025
  29. 18/18 mingw: special-case index entries for symlinks with buggy sizeJohannes Schindelin via GitGitGadget, Dec 17, 2025
  30. Junio C HamanoDec 18, 2025
  31. Johannes SixtDec 18, 2025
  32. Karsten BleesDec 18, 2025
  33. 00/18 Support symbolic links on WindowsJohannes Schindelin via GitGitGadget, Jan 9, 2026
  34. 01/18 mingw: don't call `GetFileAttributes()` twice in `mingw_lstat()`Karsten Blees via GitGitGadget, Jan 9, 2026
  35. 02/18 mingw: implement `stat()` with symlink supportKarsten Blees via GitGitGadget, Jan 9, 2026
  36. 03/18 mingw: drop the separate `do_lstat()` functionKarsten Blees via GitGitGadget, Jan 9, 2026
  37. 04/18 mingw: let `mingw_lstat()` error early upon problems with reparse pointsKarsten Blees via GitGitGadget, Jan 9, 2026
  38. 05/18 mingw: teach dirent about symlinksKarsten Blees via GitGitGadget, Jan 9, 2026
  39. 06/18 mingw: compute the correct size for symlinks in `mingw_lstat()`Bill Zissimopoulos via GitGitGadget, Jan 9, 2026
  40. 07/18 mingw: factor out the retry logicKarsten Blees via GitGitGadget, Jan 9, 2026
  41. 08/18 mingw: change default of `core.symlinks` to falseKarsten Blees via GitGitGadget, Jan 9, 2026
  42. 09/18 mingw: add symlink-specific error codesKarsten Blees via GitGitGadget, Jan 9, 2026
  43. 11/18 mingw: support renaming symlinksKarsten Blees via GitGitGadget, Jan 9, 2026
  44. 10/18 mingw: handle symlinks to directories in `mingw_unlink()`Karsten Blees via GitGitGadget, Jan 9, 2026
  45. 12/18 mingw: allow `mingw_chdir()` to change to symlink-resolved directoriesKarsten Blees via GitGitGadget, Jan 9, 2026
  46. 13/18 mingw: implement `readlink()`Karsten Blees via GitGitGadget, Jan 9, 2026
  47. 14/18 mingw: implement basic `symlink()` functionality (file symlinks only)Karsten Blees via GitGitGadget, Jan 9, 2026
  48. 15/18 mingw: add support for symlinks to directoriesKarsten Blees via GitGitGadget, Jan 9, 2026
  49. 16/18 mingw: try to create symlinks without elevated permissionsJohannes Schindelin via GitGitGadget, Jan 9, 2026
  50. 17/18 mingw: emulate `stat()` a little more faithfullyJohannes Schindelin via GitGitGadget, Jan 9, 2026
  51. 18/18 mingw: special-case index entries for symlinks with buggy sizeJohannes Schindelin via GitGitGadget, Jan 9, 2026

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