Merge branch 'jc/maint-1.7.3-checkout-describe' into maint

* jc/maint-1.7.3-checkout-describe:
  checkout -b <name>: correctly detect existing branch

1 files changed, 6 insertions, 0 deletions

diff --git a/refs.c b/refs.c
index b10419a698..3a8789d385 100644
--- a/refs.c
+++ b/refs.c
@@ -1826,6 +1826,12 @@ int update_ref(const char *action, const char *refname,
 	return 0;
 }
 
+int ref_exists(char *refname)
+{
+	unsigned char sha1[20];
+	return !!resolve_ref(refname, sha1, 1, NULL);
+}
+
 struct ref *find_ref_by_name(const struct ref *list, const char *name)
 {
 	for ( ; list; list = list->next)