[PATCH 27/37] merge-recursive: Move handling of double rename of one file to two

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Move the handling of rename/rename conflicts where one file is renamed to
two different files, from process_renames() to process_df_entry().

Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
 merge-recursive.c       |   57 +++++++++++++++++++++++++++++++++-------------
 t/t6022-merge-rename.sh |    2 +-
 2 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/merge-recursive.c b/merge-recursive.c
index 178bbd8..e219d62 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -855,8 +855,11 @@ static void conflict_rename_rename_1to2(struct merge_options *o,
 		 * update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
 		 */
 	} else {
-		update_stages(dst_name1, NULL, pair1->two, NULL, 1);
-		update_stages(dst_name2, NULL, NULL, pair2->two, 1);
+		update_stages(ren1_dst, NULL, pair1->two, NULL, 1);
+		update_stages(ren2_dst, NULL, NULL, pair2->two, 1);
+
+		update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
+		update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
 	}
 	while (delp--)
 		free(del[delp]);
@@ -958,19 +961,15 @@ static int process_renames(struct merge_options *o,
 			ren2->dst_entry->processed = 1;
 			ren2->processed = 1;
 			if (strcmp(ren1_dst, ren2_dst) != 0) {
-				clean_merge = 0;
-				output(o, 1, "CONFLICT (rename/rename): "
-				       "Rename \"%s\"->\"%s\" in branch \"%s\" "
-				       "rename \"%s\"->\"%s\" in \"%s\"%s",
-				       src, ren1_dst, branch1,
-				       src, ren2_dst, branch2,
-				       o->call_depth ? " (left unresolved)": "");
-				if (o->call_depth) {
-					remove_file_from_cache(src);
-					update_file(o, 0, ren1->pair->one->sha1,
-						    ren1->pair->one->mode, src);
-				}
-				conflict_rename_rename_1to2(o, ren1->pair, branch1, ren2->pair, branch2);
+				setup_rename_df_conflict_info(RENAME_ONE_FILE_TO_TWO,
+							      ren1->pair,
+							      ren2->pair,
+							      branch1,
+							      branch2,
+							      ren1->dst_entry,
+							      ren2->dst_entry);
+				remove_file(o, 0, ren1_dst, 0);
+				/* ren2_dst not in head, so no need to delete */
 			} else {
 				struct merge_file_info mfi;
 				remove_file(o, 1, ren1_src, 1);
@@ -1364,7 +1363,33 @@ static int process_df_entry(struct merge_options *o,
 
 	entry->processed = 1;
 	if (entry->rename_df_conflict_info) {
-		die ("Not yet implemented.");
+		struct rename_df_conflict_info *conflict_info = entry->rename_df_conflict_info;
+		char *src;
+		switch (conflict_info->rename_type) {
+		case RENAME_ONE_FILE_TO_TWO:
+			src = conflict_info->pair1->one->path;
+			clean_merge = 0;
+			output(o, 1, "CONFLICT (rename/rename): "
+			       "Rename \"%s\"->\"%s\" in branch \"%s\" "
+			       "rename \"%s\"->\"%s\" in \"%s\"%s",
+			       src, conflict_info->pair1->two->path, conflict_info->branch1,
+			       src, conflict_info->pair2->two->path, conflict_info->branch2,
+			       o->call_depth ? " (left unresolved)": "");
+			if (o->call_depth) {
+				remove_file_from_cache(src);
+				update_file(o, 0, conflict_info->pair1->one->sha1,
+					    conflict_info->pair1->one->mode, src);
+			}
+			conflict_rename_rename_1to2(o, conflict_info->pair1,
+						    conflict_info->branch1,
+						    conflict_info->pair2,
+						    conflict_info->branch2);
+			conflict_info->dst_entry2->processed = 1;
+			break;
+		default:
+			entry->processed = 0;
+			break;
+		}
 	} else if (!o_sha && !!a_sha != !!b_sha) {
 		/* directory -> (directory, file) */
 		const char *add_branch;
diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh
index 02dea16..1f29c0a 100755
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
@@ -652,7 +652,7 @@ test_expect_success 'setup rename of one file to two, with directories in the wa
 	git commit -m "Put one/file in the way, rename to two"
 '
 
-test_expect_failure 'check handling of differently renamed file with D/F conflicts' '
+test_expect_success 'check handling of differently renamed file with D/F conflicts' '
 	git checkout -q first-rename^0 &&
 	test_must_fail git merge --strategy=recursive second-rename &&
 
-- 
1.7.3.271.g16009

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