+static void populate_worktree_map(struct hashmap *map, struct worktree **worktrees)
+{
+ int i;
+
+ for (i = 0; worktrees[i]; i++) {
+ if (worktrees[i]->head_ref) {
+ struct ref_to_worktree_entry *entry;
+ entry = xmalloc(sizeof(*entry));
+ entry->wt = worktrees[i];
+ hashmap_entry_init(entry, strhash(worktrees[i]->head_ref));
+
+ hashmap_add(map, entry);
+ }
+ }
+}
+
+static void lazy_init_worktree_map(void)
+{
+ if (ref_to_worktree_map.worktrees)
+ return;
+
+ ref_to_worktree_map.worktrees = get_worktrees(0);
+ hashmap_init(&(ref_to_worktree_map.map), ref_to_worktree_map_cmpfnc, NULL, 0);
+ populate_worktree_map(&(ref_to_worktree_map.map), ref_to_worktree_map.worktrees);
+}
+
+static char *get_worktree_path(const struct used_atom *atom, const struct ref_array_item *ref)
+{
+ struct hashmap_entry entry;
+ struct ref_to_worktree_entry *lookup_result;
+
+ lazy_init_worktree_map();
+
+ hashmap_entry_init(&entry, strhash(ref->refname));
+ lookup_result = hashmap_get(&(ref_to_worktree_map.map), &entry, ref->refname);
+
+ if (lookup_result)
+ return xstrdup(lookup_result->wt->path);
+ else
+ return xstrdup("");
+}
+