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Re: [PATCH v6 00/10] parseopt: add subcommand autocorrection

From
Junio C Hamano <gitster@pobox.com>
Date
May 11, 2026, 03:03 UTC
Message-ID
<xmqqcxz2tzpr.fsf@gitster.g>
In-Reply-To
<SY0P300MB0801677A2A1E0FD38D06A841CE2A2@SY0P300MB0801.AUSP300.PROD.OUTLOOK.COM>
Jiamu Sun <39@barroit.sh> writes:
Show 27 quoted lines
> Git currently provides auto-correction for builtins and aliases, but
> lacks this functionality for subcommands parsed via the parse-options
> API. Subcommands are also commands, and typos will occur, too. Like:
>
> 	git remote add-rul
>
> So, this series introduces subcommand auto-correction.
>
> By default, this implementation enables autocorrection for builtins
> with mandatory subcommands. However, for those using
> PARSE_OPT_SUBCOMMAND_OPTIONAL, autocorrection is skipped to avoid
> misinterpreting legitimate unknown arguments as mistyped subcommands.
>
> To allow builtins with optional subcommands to explicitly opt in,
> this series adds the PARSE_OPT_SUBCOMMAND_AUTOCORRECT flag, and enables
> it for git-remote and git-notes.
>
> Additionally, the existing autocorrection logic is extracted from
> help.c so subcommand handling can reuse the same config parsing and
> prompt/delay logic.
>
> Some string literals are also combined so the full text is easier to
> grep for.
>
> Changes in v6:
>   - Adjust existing tests to fit subcommand autocorrection behavior
>   - Change the similar subcommand hint exit code to 129

I've been carrying the following fix on top of these series since Apr 23 when the topic was merged to 'seen'. Can you fix these up at the source, so that we can move forward with this topic?

Thanks.
diff --git a/parse-options.c b/parse-options.c
index a1258134df..1a5feab5dd 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -647,7 +647,8 @@ static const char *autocorrect_subcommand(const char *cmd,
 					  struct string_list *cmds)
 {
 	struct autocorrect autocorrect = { 0 };
-	unsigned int n = 0, best = 0;
+	unsigned int n = 0;
+	int best = 0;
 	struct string_list_item *cand;
 
 	autocorrect_resolve(&autocorrect);
@@ -657,7 +658,7 @@ static const char *autocorrect_subcommand(const char *cmd,
 
 	for_each_string_list_item(cand, cmds) {
 		if (starts_with(cand->string, cmd)) {
-			cand->util = 0;
+			cand->util = NULL;
 		} else {
 			int edit = levenshtein(cmd, cand->string,
 					       0, 2, 1, 3) + 1;
-- 
2.54.0-170-g88022b8681
Previous: Jiamu SunNext: Jiamu Sun
Message 94 of 96 in “parseopt: add subcommand autocorrection”
  1. 0/5 parseopt: add subcommand autocorrectionJiamu Sun, Mar 8, 2026
  2. 1/5 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Mar 8, 2026
  3. Junio C HamanoMar 8, 2026
  4. Jiamu SunMar 9, 2026
  5. 2/5 help: refactor command autocorrection handlingJiamu Sun, Mar 8, 2026
  6. Junio C HamanoMar 8, 2026
  7. Jiamu SunMar 9, 2026
  8. 3/5 parseopt: autocorrect mistyped subcommandsJiamu Sun, Mar 8, 2026
  9. Junio C HamanoMar 9, 2026
  10. Jiamu SunMar 9, 2026
  11. 4/5 parseopt: enable subcommand autocorrect for remote and notesJiamu Sun, Mar 8, 2026
  12. 5/5 help: add tests for subcommand autocorrectionJiamu Sun, Mar 8, 2026
  13. Aaron PlattnerMar 11, 2026
  14. Jiamu SunMar 11, 2026
  15. Junio C HamanoMar 12, 2026
  16. Junio C HamanoMar 8, 2026
  17. Jiamu SunMar 8, 2026
  18. 0/5 parseopt: add subcommand autocorrectionJiamu Sun, Mar 8, 2026
  19. 1/5 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Mar 8, 2026
  20. 2/5 help: refactor command autocorrection handlingJiamu Sun, Mar 8, 2026
  21. 3/5 parseopt: autocorrect mistyped subcommandsJiamu Sun, Mar 8, 2026
  22. 4/5 parseopt: enable subcommand autocorrect for remote and notesJiamu Sun, Mar 8, 2026
  23. 5/5 help: add tests for subcommand autocorrectionJiamu Sun, Mar 8, 2026
  24. 0/8 parseopt: add subcommand autocorrectionJiamu Sun, Mar 10, 2026
  25. 1/8 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Mar 10, 2026
  26. Karthik NayakMar 10, 2026
  27. Jiamu SunMar 11, 2026
  28. Junio C HamanoMar 11, 2026
  29. Junio C HamanoMar 11, 2026
  30. Jiamu SunMar 11, 2026
  31. 2/8 help: make autocorrect handling reusableJiamu Sun, Mar 10, 2026
  32. Karthik NayakMar 10, 2026
  33. Junio C HamanoMar 10, 2026
  34. Jiamu SunMar 11, 2026
  35. Jiamu SunMar 11, 2026
  36. 3/8 help: move tty check for autocorrection to autocorrect.cJiamu Sun, Mar 10, 2026
  37. Karthik NayakMar 10, 2026
  38. Jiamu SunMar 11, 2026
  39. Jiamu SunMar 12, 2026
  40. 4/8 autocorrect: rename AUTOCORRECT_SHOW to AUTOCORRECT_HINTONLYJiamu Sun, Mar 10, 2026
  41. Karthik NayakMar 10, 2026
  42. Jiamu SunMar 11, 2026
  43. 5/8 autocorrect: provide config resolution APIJiamu Sun, Mar 10, 2026
  44. Karthik NayakMar 10, 2026
  45. 6/8 parseopt: autocorrect mistyped subcommandsJiamu Sun, Mar 10, 2026
  46. Junio C HamanoMar 10, 2026
  47. Jiamu SunMar 11, 2026
  48. Jiamu SunMar 11, 2026
  49. Junio C HamanoMar 12, 2026
  50. Jiamu SunMar 12, 2026
  51. 7/8 parseopt: enable subcommand autocorrection for git-remote and git-notesJiamu Sun, Mar 10, 2026
  52. 8/8 help: add tests for subcommand autocorrectionJiamu Sun, Mar 10, 2026
  53. Junio C HamanoMar 11, 2026
  54. Jiamu SunMar 11, 2026
  55. 00/10 parseopt: add subcommand autocorrectionJiamu Sun, Mar 16, 2026
  56. 01/10 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Mar 16, 2026
  57. 02/10 help: make autocorrect handling reusableJiamu Sun, Mar 16, 2026
  58. 03/10 help: move tty check for autocorrection to autocorrect.cJiamu Sun, Mar 16, 2026
  59. 04/10 autocorrect: use mode and delay instead of magic numbersJiamu Sun, Mar 16, 2026
  60. 05/10 autocorrect: rename AUTOCORRECT_SHOW to AUTOCORRECT_HINTJiamu Sun, Mar 16, 2026
  61. 06/10 autocorrect: provide config resolution APIJiamu Sun, Mar 16, 2026
  62. 07/10 parseopt: autocorrect mistyped subcommandsJiamu Sun, Mar 16, 2026
  63. Junio C HamanoMar 16, 2026
  64. Jiamu SunMar 17, 2026
  65. Junio C HamanoApr 15, 2026
  66. Jiamu SunApr 16, 2026
  67. 08/10 parseopt: enable subcommand autocorrection for git-remote and git-notesJiamu Sun, Mar 16, 2026
  68. 09/10 parseopt: add tests for subcommand autocorrectionJiamu Sun, Mar 16, 2026
  69. 10/10 doc: document autocorrect APIJiamu Sun, Mar 16, 2026
  70. 00/10 parseopt: add subcommand autocorrectionJiamu Sun, Apr 22, 2026
  71. 02/10 help: make autocorrect handling reusableJiamu Sun, Apr 22, 2026
  72. 01/10 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Apr 22, 2026
  73. 03/10 help: move tty check for autocorrection to autocorrect.cJiamu Sun, Apr 22, 2026
  74. 04/10 autocorrect: use mode and delay instead of magic numbersJiamu Sun, Apr 22, 2026
  75. 05/10 autocorrect: rename AUTOCORRECT_SHOW to AUTOCORRECT_HINTJiamu Sun, Apr 22, 2026
  76. 06/10 autocorrect: provide config resolution APIJiamu Sun, Apr 22, 2026
  77. 07/10 parseopt: autocorrect mistyped subcommandsJiamu Sun, Apr 22, 2026
  78. 08/10 parseopt: enable subcommand autocorrection for git-remote and git-notesJiamu Sun, Apr 22, 2026
  79. 09/10 parseopt: add tests for subcommand autocorrectionJiamu Sun, Apr 22, 2026
  80. 10/10 doc: document autocorrect APIJiamu Sun, Apr 22, 2026
  81. Junio C HamanoApr 23, 2026
  82. Jiamu SunApr 23, 2026
  83. 00/10 parseopt: add subcommand autocorrectionJiamu Sun, Apr 23, 2026
  84. 01/10 parseopt: extract subcommand handling from parse_options_step()Jiamu Sun, Apr 23, 2026
  85. 02/10 help: make autocorrect handling reusableJiamu Sun, Apr 23, 2026
  86. 03/10 help: move tty check for autocorrection to autocorrect.cJiamu Sun, Apr 23, 2026
  87. 04/10 autocorrect: use mode and delay instead of magic numbersJiamu Sun, Apr 23, 2026
  88. 06/10 autocorrect: provide config resolution APIJiamu Sun, Apr 23, 2026
  89. 10/10 doc: document autocorrect APIJiamu Sun, Apr 23, 2026
  90. 05/10 autocorrect: rename AUTOCORRECT_SHOW to AUTOCORRECT_HINTJiamu Sun, Apr 23, 2026
  91. 07/10 parseopt: autocorrect mistyped subcommandsJiamu Sun, Apr 23, 2026
  92. 08/10 parseopt: enable subcommand autocorrection for git-remote and git-notesJiamu Sun, Apr 23, 2026
  93. 09/10 parseopt: add tests for subcommand autocorrectionJiamu Sun, Apr 23, 2026
  94. Junio C HamanoMay 11, 2026
  95. Jiamu SunMay 15, 2026
  96. Junio C HamanoJun 6, 2026

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