1 files changed, 30 insertions, 0 deletions
diff --git a/worktree.c b/worktree.c
index b0d0b5426d..4193496f2a 100644
--- a/worktree.c
+++ b/worktree.c
@@ -487,6 +487,36 @@ int submodule_uses_worktrees(const char *path)
 	return ret;
 }
 
+int parse_worktree_ref(const char *worktree_ref, const char **name,
+		       int *name_length, const char **ref)
+{
+	if (skip_prefix(worktree_ref, "main-worktree/", &worktree_ref)) {
+		if (!*worktree_ref)
+			return -1;
+		if (name)
+			*name = NULL;
+		if (name_length)
+			*name_length = 0;
+		if (ref)
+			*ref = worktree_ref;
+		return 0;
+	}
+	if (skip_prefix(worktree_ref, "worktrees/", &worktree_ref)) {
+		const char *slash = strchr(worktree_ref, '/');
+
+		if (!slash || slash == worktree_ref || !slash[1])
+			return -1;
+		if (name)
+			*name = worktree_ref;
+		if (name_length)
+			*name_length = slash - worktree_ref;
+		if (ref)
+			*ref = slash + 1;
+		return 0;
+	}
+	return -1;
+}
+
 int other_head_refs(each_ref_fn fn, void *cb_data)
 {
 	struct worktree **worktrees, **p;