refs.c: add a public is_branch function

diff --git a/refs.h b/refs.h
index 1440acc06ce59f35d23719adef18774731efe5a4..1b223e58a19f613885da62a9441786d76b30bdf9 100644 (file)
--- a/refs.h
+++ b/refs.h
@@ -137,6 +137,8 @@ extern int repack_without_refs(const char **refnames, int n);
 
 extern int ref_exists(const char *);
 
+extern int is_branch(const char *refname);
+
 /*
  * If refname is a non-symbolic reference that refers to a tag object,
  * and the tag can be (recursively) dereferenced to a non-tag object,