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[PATCH v2 5/9] merge-recursive: make sure when we say we abort that we actually abort

From
Elijah Newren <newren@gmail.com>
Date
Jul 1, 2018, 01:24 UTC
Message-ID
<20180701012503.14382-6-newren@gmail.com>
In-Reply-To
<20180701012503.14382-1-newren@gmail.com>

In commit 65170c07d4 ("merge-recursive: avoid incorporating uncommitted changes in a merge", 2017-12-21), it was noted that there was a special case when merge-recursive didn't rely on unpack_trees() to enforce the index == HEAD requirement, and thus that it needed to do that enforcement itself. Unfortunately, it returned the wrong exit status, signalling that the merge completed but had conflicts, rather than that it was aborted. Fix the return code, and while we're at it, change the error message to match what unpack_trees() would have printed.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 merge-recursive.c                        | 4 ++--
 t/t6044-merge-unrelated-index-changes.sh | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/merge-recursive.c b/merge-recursive.c
index f9384fabf..9c0699be5 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -3267,9 +3267,9 @@ int merge_trees(struct merge_options *o,
 		struct strbuf sb = STRBUF_INIT;
 
 		if (!o->call_depth && index_has_changes(&the_index, &sb)) {
-			err(o, _("Dirty index: cannot merge (dirty: %s)"),
+			err(o, _("Your local changes to the following files would be overwritten by merge:\n  %s"),
 			    sb.buf);
-			return 0;
+			return -1;
 		}
 		output(o, 0, _("Already up to date!"));
 		*result = head;
diff --git a/t/t6044-merge-unrelated-index-changes.sh b/t/t6044-merge-unrelated-index-changes.sh
index 92ec55255..3876cfa4f 100755
--- a/t/t6044-merge-unrelated-index-changes.sh
+++ b/t/t6044-merge-unrelated-index-changes.sh
@@ -116,7 +116,7 @@ test_expect_success 'recursive' '
 	test_path_is_missing .git/MERGE_HEAD
 '
 
-test_expect_failure 'recursive, when merge branch matches merge base' '
+test_expect_success 'recursive, when merge branch matches merge base' '
 	git reset --hard &&
 	git checkout B^0 &&
 
-- 
2.18.0.137.g2a11d05a6.dirty
Previous: Junio C HamanoNext: Elijah Newren
Message 26 of 30 in “merge requirement: index matches head”
  1. 0/7 merge requirement: index matches headElijah Newren, Jun 3, 2018
  2. 3/7 merge-recursive: make sure when we say we abort that we actually abortElijah Newren, Jun 3, 2018
  3. 2/7 t6044: add a testcase for index matching head, when head doesn't match HEADElijah Newren, Jun 3, 2018
  4. 5/7 t6044: add more testcases with staged changes before a merge is invokedElijah Newren, Jun 3, 2018
  5. 6/7 merge-recursive: enforce rule that index matches head before mergingElijah Newren, Jun 3, 2018
  6. 7/7 merge: fix misleading pre-merge check documentationElijah Newren, Jun 3, 2018
  7. Elijah NewrenJun 7, 2018
  8. 4/7 merge-recursive: fix assumption that head tree being merged is HEADElijah Newren, Jun 3, 2018
  9. Ramsay JonesJun 3, 2018
  10. brian m. carlsonJun 3, 2018
  11. Ramsay JonesJun 4, 2018
  12. Junio C HamanoJun 4, 2018
  13. Elijah NewrenJun 5, 2018
  14. Elijah NewrenJun 11, 2018
  15. 1/7 t6044: verify that merges expected to abort actually abortElijah Newren, Jun 3, 2018
  16. 0/9 Fix merge issues with index not matching HEADElijah Newren, Jul 1, 2018
  17. 1/9 read-cache.c: move index_has_changes() from merge.cElijah Newren, Jul 1, 2018
  18. 2/9 index_has_changes(): avoid assuming operating on the_indexElijah Newren, Jul 1, 2018
  19. Junio C HamanoJul 3, 2018
  20. 3/9 t6044: verify that merges expected to abort actually abortElijah Newren, Jul 1, 2018
  21. 4/9 t6044: add a testcase for index matching head, when head doesn't match HEADElijah Newren, Jul 1, 2018
  22. SZEDER GáborJul 10, 2018
  23. Elijah NewrenJul 11, 2018
  24. 8/9 merge-recursive: enforce rule that index matches head before mergingElijah Newren, Jul 1, 2018
  25. Junio C HamanoJul 3, 2018
  26. 5/9 merge-recursive: make sure when we say we abort that we actually abortElijah Newren, Jul 1, 2018
  27. 6/9 merge-recursive: fix assumption that head tree being merged is HEADElijah Newren, Jul 1, 2018
  28. Junio C HamanoJul 3, 2018
  29. 7/9 t6044: add more testcases with staged changes before a merge is invokedElijah Newren, Jul 1, 2018
  30. 9/9 merge: fix misleading pre-merge check documentationElijah Newren, Jul 1, 2018

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