merge-ort: implement apply_dir_rename() and check_dir_renamed()
Both of these are copied from merge-recursive.c, with just minor tweaks
due to using strmap API and not having a non_unique_new_dir field.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/merge-ort.c b/merge-ort.c
index 22028d5..db92227 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -736,7 +736,29 @@ struct collision_info {
static char *apply_dir_rename(struct strmap_entry *rename_info,
const char *old_path)
{
- die("Not yet implemented!");
+ struct strbuf new_path = STRBUF_INIT;
+ const char *old_dir = rename_info->key;
+ const char *new_dir = rename_info->value;
+ int oldlen, newlen, new_dir_len;
+
+ oldlen = strlen(old_dir);
+ if (*new_dir == '\0')
+ /*
+ * If someone renamed/merged a subdirectory into the root
+ * directory (e.g. 'some/subdir' -> ''), then we want to
+ * avoid returning
+ * '' + '/filename'
+ * as the rename; we need to make old_path + oldlen advance
+ * past the '/' character.
+ */
+ oldlen++;
+ new_dir_len = strlen(new_dir);
+ newlen = new_dir_len + (strlen(old_path) - oldlen) + 1;
+ strbuf_grow(&new_path, newlen);
+ strbuf_add(&new_path, new_dir, new_dir_len);
+ strbuf_addstr(&new_path, &old_path[oldlen]);
+
+ return strbuf_detach(&new_path, NULL);
}
static void get_renamed_dir_portion(const char *old_path, const char *new_path,
@@ -980,7 +1002,18 @@ static void handle_directory_level_conflicts(struct merge_options *opt)
static struct strmap_entry *check_dir_renamed(const char *path,
struct strmap *dir_renames)
{
- die("Not yet implemented!");
+ char *temp = xstrdup(path);
+ char *end;
+ struct strmap_entry *e = NULL;
+
+ while ((end = strrchr(temp, '/'))) {
+ *end = '\0';
+ e = strmap_get_entry(dir_renames, temp);
+ if (e)
+ break;
+ }
+ free(temp);
+ return e;
}
static void compute_collisions(struct strmap *collisions,
