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[PATCH 16/18] revert: Remove sequencer state when no commits are pending

From
Ramkumar Ramachandra <artagnon@gmail.com>
Date
Jul 27, 2011, 03:19 UTC
Message-ID
<1311736755-24205-17-git-send-email-artagnon@gmail.com>
In-Reply-To
<1311736755-24205-1-git-send-email-artagnon@gmail.com>

When cherry-pick or revert is called on a list of commits, and a conflict encountered somewhere in the middle, the data in ".git/sequencer" is required to continue the operation. However, when a conflict is encountered in the very last commit, the user will have to "continue" after resolving the conflict and committing just so that the sequencer state is removed. This is how the current "rebase -i" script works as well.

$ git cherry-pick foo..bar ... conflict encountered while picking "bar" ... $ echo "resolved" >problematicfile $ git add problematicfile $ git commit $ git cherry-pick --continue # This would be a noop

Change this so that the sequencer state is cleared when a conflict is encountered in the last commit. Incidentally, this patch makes sure that some existing tests don't break when features like "--reset" and "--continue" are implemented later in the series.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 builtin/revert.c                |   12 +++++++++++-
 t/t3510-cherry-pick-sequence.sh |   24 ++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/builtin/revert.c b/builtin/revert.c
index 3c792fa..09d479b 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -887,8 +887,18 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
 	for (cur = todo_list; cur; cur = cur->next) {
 		save_todo(cur, opts);
 		res = do_pick_commit(cur->item, opts);
-		if (res)
+		if (res) {
+			if (!cur->next)
+				/*
+				 * An error was encountered while
+				 * picking the last commit; the
+				 * sequencer state is useless now --
+				 * the user simply needs to resolve
+				 * the conflict and commit
+				 */
+				remove_sequencer_state(0);
 			return res;
+		}
 	}
 
 	/*
diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh
index aea4f6c..428b5bf 100755
--- a/t/t3510-cherry-pick-sequence.sh
+++ b/t/t3510-cherry-pick-sequence.sh
@@ -83,4 +83,28 @@ test_expect_success '--reset cleans up sequencer state' '
 	test_path_is_missing .git/sequencer
 '
 
+test_expect_success 'cherry-pick cleans up sequencer state when one commit is left' '
+	pristine_detach initial &&
+	test_must_fail git cherry-pick base..picked &&
+	test_path_is_missing .git/sequencer &&
+	echo "resolved" >foo &&
+	git add foo &&
+	git commit &&
+	{
+		git rev-list HEAD |
+		git diff-tree --root --stdin |
+		sed "s/$_x40/OBJID/g"
+	} >actual &&
+	cat >expect <<-\EOF &&
+	OBJID
+	:100644 100644 OBJID OBJID M	foo
+	OBJID
+	:100644 100644 OBJID OBJID M	unrelated
+	OBJID
+	:000000 100644 OBJID OBJID A	foo
+	:000000 100644 OBJID OBJID A	unrelated
+	EOF
+	test_cmp expect actual
+'
+
 test_done
-- 
1.7.4.rc1.7.g2cf08.dirty
Previous: Jonathan NiederNext: Jonathan Nieder
Message 51 of 79 in “GSoC update: Sequencer for inclusion v3”
  1. 00/18 GSoC update: Sequencer for inclusion v3Ramkumar Ramachandra, Jul 27, 2011
  2. 01/18 advice: Introduce error_resolve_conflictRamkumar Ramachandra, Jul 27, 2011
  3. 02/18 config: Introduce functions to write non-standard fileRamkumar Ramachandra, Jul 27, 2011
  4. Jonathan NiederJul 27, 2011
  5. Jeff KingJul 27, 2011
  6. Ramkumar RamachandraJul 28, 2011
  7. 03/18 revert: Simplify and inline add_message_to_msgRamkumar Ramachandra, Jul 27, 2011
  8. Jonathan NiederJul 27, 2011
  9. Ramkumar RamachandraJul 27, 2011
  10. Jonathan NiederJul 27, 2011
  11. Ramkumar RamachandraJul 27, 2011
  12. Jonathan NiederJul 27, 2011
  13. 04/18 revert: Don't check lone argument in get_encodingRamkumar Ramachandra, Jul 27, 2011
  14. Jonathan NiederJul 27, 2011
  15. Ramkumar RamachandraJul 28, 2011
  16. 05/18 revert: Rename no_replay to record_originRamkumar Ramachandra, Jul 27, 2011
  17. 06/18 revert: Propogate errors upwards from do_pick_commitRamkumar Ramachandra, Jul 27, 2011
  18. Jonathan NiederJul 27, 2011
  19. Ramkumar RamachandraJul 27, 2011
  20. 07/18 revert: Eliminate global "commit" variableRamkumar Ramachandra, Jul 27, 2011
  21. Jonathan NiederJul 27, 2011
  22. Ramkumar RamachandraJul 27, 2011
  23. 08/18 revert: Introduce struct to keep command-line optionsRamkumar Ramachandra, Jul 27, 2011
  24. 09/18 revert: Separate cmdline parsing from functional codeRamkumar Ramachandra, Jul 27, 2011
  25. 10/18 revert: Don't create invalid replay_opts in parse_argsRamkumar Ramachandra, Jul 27, 2011
  26. Jonathan NiederJul 27, 2011
  27. Christian CouderJul 31, 2011
  28. Ramkumar RamachandraAug 1, 2011
  29. 11/18 revert: Save data for continuing after conflict resolutionRamkumar Ramachandra, Jul 27, 2011
  30. Jonathan NiederJul 27, 2011
  31. Ramkumar RamachandraJul 27, 2011
  32. Jonathan NiederJul 27, 2011
  33. Ramkumar RamachandraJul 27, 2011
  34. Junio C HamanoJul 27, 2011
  35. 12/18 revert: Save command-line options for continuing operationRamkumar Ramachandra, Jul 27, 2011
  36. Jonathan NiederJul 27, 2011
  37. Ramkumar RamachandraJul 27, 2011
  38. Jonathan NiederJul 27, 2011
  39. Ramkumar RamachandraJul 27, 2011
  40. Junio C HamanoJul 27, 2011
  41. 13/18 revert: Make pick_commits functionally act on a commit listRamkumar Ramachandra, Jul 27, 2011
  42. 14/18 revert: Introduce --reset to remove sequencer stateRamkumar Ramachandra, Jul 27, 2011
  43. Jonathan NiederJul 27, 2011
  44. Ramkumar RamachandraJul 27, 2011
  45. Jonathan NiederJul 27, 2011
  46. Ramkumar RamachandraJul 27, 2011
  47. 15/18 reset: Make reset remove the sequencer stateRamkumar Ramachandra, Jul 27, 2011
  48. Jonathan NiederJul 27, 2011
  49. Ramkumar RamachandraJul 28, 2011
  50. Jonathan NiederJul 28, 2011
  51. 16/18 revert: Remove sequencer state when no commits are pendingRamkumar Ramachandra, Jul 27, 2011
  52. Jonathan NiederJul 27, 2011
  53. Ramkumar RamachandraJul 27, 2011
  54. Jonathan NiederJul 27, 2011
  55. Ramkumar RamachandraJul 27, 2011
  56. Jonathan NiederJul 27, 2011
  57. Ramkumar RamachandraJul 27, 2011
  58. Ramkumar RamachandraJul 28, 2011
  59. Jonathan NiederJul 29, 2011
  60. Ramkumar RamachandraJul 29, 2011
  61. Jonathan NiederJul 30, 2011
  62. Ramkumar RamachandraJul 30, 2011
  63. Jonathan NiederJul 30, 2011
  64. 17/18 revert: Don't implictly stomp pending sequencer operationRamkumar Ramachandra, Jul 27, 2011
  65. Jonathan NiederJul 27, 2011
  66. Ramkumar RamachandraJul 27, 2011
  67. Jonathan NiederJul 27, 2011
  68. Ramkumar RamachandraJul 27, 2011
  69. 18/18 revert: Introduce --continue to continue the operationRamkumar Ramachandra, Jul 27, 2011
  70. Jonathan NiederJul 27, 2011
  71. Ramkumar RamachandraJul 27, 2011
  72. Jonathan NiederJul 27, 2011
  73. Ramkumar RamachandraJul 27, 2011
  74. Junio C HamanoJul 27, 2011
  75. Ramkumar RamachandraJul 28, 2011
  76. Junio C HamanoJul 27, 2011
  77. Ramkumar RamachandraJul 28, 2011
  78. Ramkumar RamachandraJul 28, 2011
  79. Jonathan NiederJul 28, 2011

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