merge-recursive: add handling for rename/rename/add-dest/add-dest

Each side of the rename in rename/rename(1to2) could potentially also be involved in a rename/add conflict. Ensure stages for such conflicts are also recorded. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Elijah Newren committed Aug 11, 2011 at 23:20 UTC 1ac91b32b5f153a91c10fb236a3769541be60ae9
2 files changed +20 -3
merge-recursive.c
+19 -2
@@ -1071,6 +1071,19 @@ static void conflict_rename_delete(struct merge_options *o,
1071 "rename", "renamed");
1072 }
1073
1074 +static struct diff_filespec *filespec_from_entry(struct diff_filespec *target,
1075 + struct stage_data *entry,
1076 + int stage)
1077 +{
1078 + unsigned char *sha = entry->stages[stage].sha;
1079 + unsigned mode = entry->stages[stage].mode;
1080 + if (mode == 0 || is_null_sha1(sha))
1081 + return NULL;
1082 + hashcpy(target->sha1, sha);
1083 + target->mode = mode;
1084 + return target;
1085 +}
1086 +
1087 static void conflict_rename_rename_1to2(struct merge_options *o,
1088 struct rename_conflict_info *ci)
1089 {
@@ -1116,8 +1129,12 @@ static void conflict_rename_rename_1to2(struct merge_options *o,
1129 remove_file_from_cache(a->path);
1130 remove_file_from_cache(b->path);
1131 } else {
1119 - update_stages(a->path, NULL, a, NULL);
1120 - update_stages(b->path, NULL, NULL, b);
1132 + struct diff_filespec other;
1133 + update_stages(a->path, NULL,
1134 + a, filespec_from_entry(&other, ci->dst_entry1, 3));
1135 +
1136 + update_stages(b->path, NULL,
1137 + filespec_from_entry(&other, ci->dst_entry2, 2), b);
1138
1139 update_file(o, 0, a->sha1, a->mode, dst_name_a);
1140 update_file(o, 0, b->sha1, b->mode, dst_name_b);
t/t6042-merge-rename-corner-cases.sh
+1 -1
@@ -551,7 +551,7 @@ test_expect_success 'setup rename/rename(1to2)/add-dest conflict' '
551 git commit -m two
552 '
553
554 -test_expect_failure 'rename/rename/add-dest merge still knows about conflicting file versions' '
554 +test_expect_success 'rename/rename/add-dest merge still knows about conflicting file versions' '
555 git checkout C^0 &&
556 test_must_fail git merge -s recursive B^0 &&
557