*/
extern void add_extra_ref(const char *refname, const unsigned char *sha1, int flags);
extern void clear_extra_refs(void);
-extern int ref_exists(char *);
+extern int ref_exists(const char *);
extern int peel_ref(const char *, unsigned char *);
#define REFNAME_ALLOW_ONELEVEL 1
#define REFNAME_REFSPEC_PATTERN 2
+#define REFNAME_DOT_COMPONENT 4
/*
* Return 0 iff ref has the correct format for a refname according to
* REFNAME_ALLOW_ONELEVEL is set in flags, then accept one-level
* reference names. If REFNAME_REFSPEC_PATTERN is set in flags, then
* allow a "*" wildcard character in place of one of the name
- * components.
+ * components. No leading or repeated slashes are accepted. If
+ * REFNAME_DOT_COMPONENT is set in flags, then allow refname
+ * components to start with "." (but not a whole component equal to
+ * "." or "..").
*/
extern int check_refname_format(const char *ref, int flags);