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[PATCH 0/2] Declare merge-ort ready for general usage

From
Elijah Newren via GitGitGadget <gitgitgadget@gmail.com>
Date
Mar 16, 2021, 04:05 UTC
Message-ID
<pull.905.git.1615867503.gitgitgadget@gmail.com>
This tiny series depends on ort-perf-batch-10[1].

If the ort-remainder topic[2] is merged with this series, then the result is a version of merge-ort ready for general usage. Users can select it by (a) passing -sort to either git merge or git rebase, or (b) by setting pull.twohead=ort [3], or (c) by setting GIT_TEST_MERGE_ALGORITHM=ort.

There are still more optimizations that will be submitted for merge-ort, but folks don't need to wait for all of them to start using it. The version of merge-ort that comes from merging both these topics will run the testsuite cleanly under GIT_MERGE_TEST_ALGORITHM=ort, which includes passing every test that merge-recursive does and passing dozens of tests that merge-recursive doesn't. merge-ort is also already significantly faster than merge-recursive when rename detection is involved.

I'll send out a separate email later requesting feedback about what people would like to see before switching the default from merge-recursive to merge-ort.

[1] https://lore.kernel.org/git/pull.853.git.1615674128.gitgitgadget@gmail.com/ [2] https://lore.kernel.org/git/pull.973.v2.git.git.1615271086.gitgitgadget@gmail.com/ [3] See commit 14c4586c2d ("merge,rebase,revert: select ort or recursive by config or environment", 2020-11-02)

Elijah Newren (2):
  Revert "merge-ort: ignore the directory rename split conflict for now"
  t6423: mark remaining expected failure under merge-ort as such
 merge-ort.c                         | 13 +------------
 t/t6423-merge-rename-directories.sh |  2 +-
 2 files changed, 2 insertions(+), 13 deletions(-)
base-commit: ac0ba91ce275227f5df8f16fb986308ff88b198b
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-905%2Fgitgitgadget%2Fort-readiness-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-905/gitgitgadget/ort-readiness-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/905
-- 
gitgitgadget
Next: Elijah Newren via GitGitGadget
Message 1 of 40 in “Declare merge-ort ready for general usage”
  1. 0/2 Declare merge-ort ready for general usageElijah Newren via GitGitGadget, Mar 16, 2021
  2. 2/2 t6423: mark remaining expected failure under merge-ort as suchElijah Newren via GitGitGadget, Mar 16, 2021
  3. 1/2 Revert "merge-ort: ignore the directory rename split conflict for now"Elijah Newren via GitGitGadget, Mar 16, 2021
  4. Derrick StoleeMar 16, 2021
  5. Elijah NewrenMar 16, 2021
  6. Derrick StoleeMar 16, 2021
  7. 00/13 Declare merge-ort ready for general usageElijah Newren via GitGitGadget, Mar 17, 2021
  8. 02/13 merge-ort: add a special minimal index just for renormalizationElijah Newren via GitGitGadget, Mar 17, 2021
  9. 05/13 merge-ort: support subtree shiftingElijah Newren via GitGitGadget, Mar 17, 2021
  10. 01/13 merge-ort: use STABLE_QSORT instead of QSORT where requiredElijah Newren via GitGitGadget, Mar 17, 2021
  11. 03/13 merge-ort: have ll_merge() use a special attr_index for renormalizationElijah Newren via GitGitGadget, Mar 17, 2021
  12. 07/13 merge-ort: implement CE_SKIP_WORKTREE handling with conflicted entriesElijah Newren via GitGitGadget, Mar 17, 2021
  13. 08/13 t: mark several submodule merging tests as fixed under merge-ortElijah Newren via GitGitGadget, Mar 17, 2021
  14. 06/13 t6428: new test for SKIP_WORKTREE handling and conflictsElijah Newren via GitGitGadget, Mar 17, 2021
  15. 04/13 merge-ort: let renormalization change modify/delete into clean deleteElijah Newren via GitGitGadget, Mar 17, 2021
  16. 10/13 merge-recursive: add a bunch of FIXME comments documenting known bugsElijah Newren via GitGitGadget, Mar 17, 2021
  17. 09/13 merge-ort: write $GIT_DIR/AUTO_MERGE whenever we hit a conflictElijah Newren via GitGitGadget, Mar 17, 2021
  18. 11/13 Revert "merge-ort: ignore the directory rename split conflict for now"Elijah Newren via GitGitGadget, Mar 17, 2021
  19. 12/13 t6423: mark remaining expected failure under merge-ort as suchElijah Newren via GitGitGadget, Mar 17, 2021
  20. 13/13 Add testing with merge-ort merge strategyElijah Newren via GitGitGadget, Mar 17, 2021
  21. Derrick StoleeMar 19, 2021
  22. Elijah NewrenMar 19, 2021
  23. Derrick StoleeMar 19, 2021
  24. Elijah NewrenMar 19, 2021
  25. Elijah NewrenMar 19, 2021
  26. 00/13 Declare merge-ort ready for general usageElijah Newren via GitGitGadget, Mar 20, 2021
  27. 03/13 merge-ort: have ll_merge() use a special attr_index for renormalizationElijah Newren via GitGitGadget, Mar 20, 2021
  28. 01/13 merge-ort: use STABLE_QSORT instead of QSORT where requiredElijah Newren via GitGitGadget, Mar 20, 2021
  29. 05/13 merge-ort: support subtree shiftingElijah Newren via GitGitGadget, Mar 20, 2021
  30. 02/13 merge-ort: add a special minimal index just for renormalizationElijah Newren via GitGitGadget, Mar 20, 2021
  31. 07/13 merge-ort: implement CE_SKIP_WORKTREE handling with conflicted entriesElijah Newren via GitGitGadget, Mar 20, 2021
  32. 09/13 merge-ort: write $GIT_DIR/AUTO_MERGE whenever we hit a conflictElijah Newren via GitGitGadget, Mar 20, 2021
  33. 04/13 merge-ort: let renormalization change modify/delete into clean deleteElijah Newren via GitGitGadget, Mar 20, 2021
  34. 06/13 t6428: new test for SKIP_WORKTREE handling and conflictsElijah Newren via GitGitGadget, Mar 20, 2021
  35. 11/13 Revert "merge-ort: ignore the directory rename split conflict for now"Elijah Newren via GitGitGadget, Mar 20, 2021
  36. 08/13 t: mark several submodule merging tests as fixed under merge-ortElijah Newren via GitGitGadget, Mar 20, 2021
  37. 12/13 t6423: mark remaining expected failure under merge-ort as suchElijah Newren via GitGitGadget, Mar 20, 2021
  38. 13/13 Add testing with merge-ort merge strategyElijah Newren via GitGitGadget, Mar 20, 2021
  39. 10/13 merge-recursive: add a bunch of FIXME comments documenting known bugsElijah Newren via GitGitGadget, Mar 20, 2021
  40. Derrick StoleeMar 20, 2021

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