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Re: [PATCH v3 09/10] builtin/diff-tree: learn --merge-base

From
Junio C Hamano <gitster@pobox.com>
Date
Sep 21, 2020, 21:19 UTC
Message-ID
<xmqqo8lyesk2.fsf@gitster.c.googlers.com>
In-Reply-To
<xmqqwo0met17.fsf@gitster.c.googlers.com>
Junio C Hamano <gitster@pobox.com> writes:
Show 9 quoted lines
> Another possibility is to error out when "--merge-base A..B" is
> given, which might be simpler.  Then the code would look more like
> ...
>
> While we are at it, what happens when "--merge-base A...B" is given?
>
> ...  Is this something we want to diagnose as an error?  I am
> inclined to say we should allow it (and if it hurts the user can
> stop doing so) as there is no harm done.

My recommendation is to allow both "git --merge-base A..B" and "git --merge-base A...B". The discussion about A..B and SWAP() would equally apply to builtin/diff part of the patch. The posted patch ignores the swap logic when --merge-base is given, but we should apply the swap logic first and then make sure the merge_base logic will have the oid[0] and oid[1] in the correct order.

Previous: Junio C HamanoNext: Denton Liu
Message 27 of 58 in “builtin/diff: learn --merge-base”
  1. 0/4 builtin/diff: learn --merge-baseDenton Liu, Sep 5, 2020
  2. 1/4 t4068: remove unnecessary >tmpDenton Liu, Sep 5, 2020
  3. 3/4 builtin/diff: parse --no-index using parse_options()Denton Liu, Sep 5, 2020
  4. 2/4 git-diff.txt: backtick quote command textDenton Liu, Sep 5, 2020
  5. 4/4 builtin/diff: learn --merge-baseDenton Liu, Sep 5, 2020
  6. Junio C HamanoSep 6, 2020
  7. 0/4 builtin/diff: learn --merge-baseDenton Liu, Sep 10, 2020
  8. 1/4 t4068: remove unnecessary >tmpDenton Liu, Sep 10, 2020
  9. 2/4 git-diff.txt: backtick quote command textDenton Liu, Sep 10, 2020
  10. 3/4 builtin/diff: parse --no-index using parse_options()Denton Liu, Sep 10, 2020
  11. Junio C HamanoSep 10, 2020
  12. Denton LiuSep 13, 2020
  13. Junio C HamanoSep 13, 2020
  14. 4/4 builtin/diff: learn --merge-baseDenton Liu, Sep 10, 2020
  15. 00/10 builtin/diff: learn --merge-baseDenton Liu, Sep 17, 2020
  16. 01/10 t4068: remove unnecessary >tmpDenton Liu, Sep 17, 2020
  17. 02/10 git-diff-index.txt: make --cached description a proper sentenceDenton Liu, Sep 17, 2020
  18. 10/10 contrib/completion: complete `git diff --merge-base`Denton Liu, Sep 17, 2020
  19. 09/10 builtin/diff-tree: learn --merge-baseDenton Liu, Sep 17, 2020
  20. Junio C HamanoSep 17, 2020
  21. Denton LiuSep 18, 2020
  22. Junio C HamanoSep 18, 2020
  23. Denton LiuSep 20, 2020
  24. Junio C HamanoSep 21, 2020
  25. Denton LiuSep 21, 2020
  26. Junio C HamanoSep 21, 2020
  27. Junio C HamanoSep 21, 2020
  28. Denton LiuSep 21, 2020
  29. Junio C HamanoSep 21, 2020
  30. Denton LiuSep 23, 2020
  31. Junio C HamanoSep 25, 2020
  32. Denton LiuSep 26, 2020
  33. 08/10 builtin/diff-index: learn --merge-baseDenton Liu, Sep 17, 2020
  34. Junio C HamanoSep 17, 2020
  35. Jeff KingSep 17, 2020
  36. Junio C HamanoSep 18, 2020
  37. Jeff KingSep 18, 2020
  38. 05/10 diff-lib: accept option flags in run_diff_index()Denton Liu, Sep 17, 2020
  39. Junio C HamanoSep 17, 2020
  40. 04/10 contrib/completion: extract common diff/difftool optionsDenton Liu, Sep 17, 2020
  41. 06/10 diff-lib: define diff_get_merge_base()Denton Liu, Sep 17, 2020
  42. Junio C HamanoSep 17, 2020
  43. Denton LiuSep 18, 2020
  44. Junio C HamanoSep 19, 2020
  45. 03/10 git-diff.txt: backtick quote command textDenton Liu, Sep 17, 2020
  46. 07/10 t4068: add --merge-base testsDenton Liu, Sep 17, 2020
  47. 00/10 builtin/diff: learn --merge-baseDenton Liu, Sep 20, 2020
  48. 01/10 t4068: remove unnecessary >tmpDenton Liu, Sep 20, 2020
  49. 02/10 git-diff-index.txt: make --cached description a proper sentenceDenton Liu, Sep 20, 2020
  50. 06/10 diff-lib: define diff_get_merge_base()Denton Liu, Sep 20, 2020
  51. 05/10 diff-lib: accept option flags in run_diff_index()Denton Liu, Sep 20, 2020
  52. 03/10 git-diff.txt: backtick quote command textDenton Liu, Sep 20, 2020
  53. 07/10 t4068: add --merge-base testsDenton Liu, Sep 20, 2020
  54. 08/10 builtin/diff-index: learn --merge-baseDenton Liu, Sep 20, 2020
  55. Martin ÅgrenSep 29, 2020
  56. 04/10 contrib/completion: extract common diff/difftool optionsDenton Liu, Sep 20, 2020
  57. 09/10 builtin/diff-tree: learn --merge-baseDenton Liu, Sep 20, 2020
  58. 10/10 contrib/completion: complete `git diff --merge-base`Denton Liu, Sep 20, 2020

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