enum rename_type {
RENAME_NORMAL = 0,
RENAME_VIA_DIR,
+ RENAME_ADD,
RENAME_DELETE,
RENAME_ONE_FILE_TO_ONE,
RENAME_ONE_FILE_TO_TWO,
struct stage_data *src_entry1,
struct stage_data *src_entry2)
{
+ int ostage1 = 0, ostage2;
struct rename_conflict_info *ci;
/*
dst_entry2->rename_conflict_info = ci;
}
- if (rename_type == RENAME_TWO_FILES_TO_ONE) {
- /*
- * For each rename, there could have been
- * modifications on the side of history where that
- * file was not renamed.
- */
- int ostage1 = o->branch1 == branch1 ? 3 : 2;
- int ostage2 = ostage1 ^ 1;
+ /*
+ * For each rename, there could have been
+ * modifications on the side of history where that
+ * file was not renamed.
+ */
+ if (rename_type == RENAME_ADD ||
+ rename_type == RENAME_TWO_FILES_TO_ONE) {
+ ostage1 = o->branch1 == branch1 ? 3 : 2;
ci->ren1_other.path = pair1->one->path;
oidcpy(&ci->ren1_other.oid, &src_entry1->stages[ostage1].oid);
ci->ren1_other.mode = src_entry1->stages[ostage1].mode;
+ }
+
+ if (rename_type == RENAME_TWO_FILES_TO_ONE) {
+ ostage2 = ostage1 ^ 1;
ci->ren2_other.path = pair2->one->path;
oidcpy(&ci->ren2_other.oid, &src_entry2->stages[ostage2].oid);
return target;
}
-#if 0 // #if-0-ing avoids unused function warning; will make live in next commit
static int handle_file_collision(struct merge_options *o,
const char *collide_path,
const char *prev_path1,
char *alt_path = NULL;
const char *update_path = collide_path;
+ /*
+ * It's easiest to get the correct things into stage 2 and 3, and
+ * to make sure that the content merge puts HEAD before the other
+ * branch if we just ensure that branch1 == o->branch1. So, simply
+ * flip arguments around if we don't have that.
+ */
+ if (branch1 != o->branch1) {
+ return handle_file_collision(o, collide_path,
+ prev_path2, prev_path1,
+ branch2, branch1,
+ b_oid, b_mode,
+ a_oid, a_mode);
+ }
+
/*
* In the recursive case, we just opt to undo renames
*/
*/
return mfi.clean;
}
-#endif
+
+static int handle_rename_add(struct merge_options *o,
+ struct rename_conflict_info *ci)
+{
+ /* a was renamed to c, and a separate c was added. */
+ struct diff_filespec *a = ci->pair1->one;
+ struct diff_filespec *c = ci->pair1->two;
+ char *path = c->path;
+ char *prev_path_desc;
+ struct merge_file_info mfi;
+
+ int other_stage = (ci->branch1 == o->branch1 ? 3 : 2);
+
+ output(o, 1, _("CONFLICT (rename/add): "
+ "Rename %s->%s in %s. Added %s in %s"),
+ a->path, c->path, ci->branch1,
+ c->path, ci->branch2);
+
+ prev_path_desc = xstrfmt("version of %s from %s", path, a->path);
+ if (merge_mode_and_contents(o, a, c, &ci->ren1_other, prev_path_desc,
+ o->branch1, o->branch2,
+ 1 + o->call_depth * 2, &mfi))
+ return -1;
+ free(prev_path_desc);
+
+ return handle_file_collision(o,
+ c->path, a->path, NULL,
+ ci->branch1, ci->branch2,
+ &mfi.oid, mfi.mode,
+ &ci->dst_entry1->stages[other_stage].oid,
+ ci->dst_entry1->stages[other_stage].mode);
+}
static int handle_file(struct merge_options *o,
struct diff_filespec *rename,
0 /* update_wd */))
clean_merge = -1;
} else if (!oid_eq(&dst_other.oid, &null_oid)) {
- clean_merge = 0;
- try_merge = 1;
- output(o, 1, _("CONFLICT (rename/add): Rename %s->%s in %s. "
- "%s added in %s"),
- ren1_src, ren1_dst, branch1,
- ren1_dst, branch2);
- if (o->call_depth) {
- struct merge_file_info mfi;
- struct diff_filespec one, a, b;
-
- oidcpy(&one.oid, &null_oid);
- one.mode = 0;
- one.path = ren1->pair->two->path;
-
- oidcpy(&a.oid, &ren1->pair->two->oid);
- a.mode = ren1->pair->two->mode;
- a.path = one.path;
-
- oidcpy(&b.oid, &dst_other.oid);
- b.mode = dst_other.mode;
- b.path = one.path;
-
- if (merge_mode_and_contents(o, &one, &a, &b, ren1_dst,
- branch1, branch2,
- o->call_depth * 2, &mfi)) {
- clean_merge = -1;
- goto cleanup_and_return;
- }
- output(o, 1, _("Adding merged %s"), ren1_dst);
- if (update_file(o, 0, &mfi.oid,
- mfi.mode, ren1_dst))
- clean_merge = -1;
- try_merge = 0;
- } else {
- char *new_path = unique_path(o, ren1_dst, branch2);
- output(o, 1, _("Adding as %s instead"), new_path);
- if (update_file(o, 0, &dst_other.oid,
- dst_other.mode, new_path))
- clean_merge = -1;
- free(new_path);
- }
+ /*
+ * Probably not a clean merge, but it's
+ * premature to set clean_merge to 0 here,
+ * because if the rename merges cleanly and
+ * the merge exactly matches the newly added
+ * file, then the merge will be clean.
+ */
+ setup_rename_conflict_info(RENAME_ADD,
+ ren1->pair,
+ NULL,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ NULL,
+ o,
+ ren1->src_entry,
+ NULL);
} else
try_merge = 1;
conflict_info->branch2))
clean_merge = -1;
break;
+ case RENAME_ADD:
+ /*
+ * Probably unclean merge, but if the renamed file
+ * merges cleanly and the result can then be
+ * two-way merged cleanly with the added file, I
+ * guess it's a clean merge?
+ */
+ clean_merge = handle_rename_add(o, conflict_info);
+ break;
case RENAME_DELETE:
clean_merge = 0;
if (handle_rename_delete(o,
git branch B &&
git checkout -b C &&
echo 10 >>a &&
- echo "other content" >>new_a &&
+ test_write_lines 0 1 2 3 4 5 6 7 foobar >new_a &&
git add a new_a &&
test_tick && git commit -m C &&
git checkout B^0 &&
test_must_fail git merge C &&
- git clean -f &&
+ git show :2:new_a >new_a &&
+ git add new_a &&
test_tick && git commit -m D &&
git tag D &&
git checkout C^0 &&
test_must_fail git merge B &&
- rm new_a~HEAD new_a &&
- printf "Incorrectly merged content" >>new_a &&
+ test_write_lines 0 1 2 3 4 5 6 7 bad_merge >new_a &&
git add -u &&
test_tick && git commit -m E &&
git tag E
test_line_count = 1 out &&
git rev-parse >expect \
- D:new_a E:new_a &&
+ C:new_a D:new_a E:new_a &&
git rev-parse >actual \
- :2:new_a :3:new_a &&
+ :1:new_a :2:new_a :3:new_a &&
test_cmp expect actual &&
- git cat-file -p C:new_a >ours &&
- git cat-file -p B:new_a >theirs &&
+ # Test that the two-way merge in new_a is as expected
+ git cat-file -p D:new_a >ours &&
+ git cat-file -p E:new_a >theirs &&
>empty &&
test_must_fail git merge-file \
- -L "Temporary merge branch 1" \
+ -L "HEAD" \
-L "" \
- -L "Temporary merge branch 2" \
+ -L "E^0" \
ours empty theirs &&
sed -e "s/^\([<=>]\)/\1\1\1/" ours >expect &&
- git cat-file -p :1:new_a >actual &&
+ git hash-object new_a >actual &&
+ git hash-object ours >expect &&
test_cmp expect actual
)
'