difftool: move 'git-difftool' out of contrib

[git.git] / builtin-check-ref-format.c

diff --git a/builtin-check-ref-format.c b/builtin-check-ref-format.c
index fe04be77a9312c11fa054897c5982fa6c74b8e5e..f9381e07eaeda673e91ef6250eca4027c5ba0278 100644 (file)
--- a/builtin-check-ref-format.c
+++ b/builtin-check-ref-format.c
@@ -5,10 +5,19 @@
 #include "cache.h"
 #include "refs.h"
 #include "builtin.h"
+#include "strbuf.h"
 
 int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
 {
+       if (argc == 3 && !strcmp(argv[1], "--branch")) {
+               struct strbuf sb = STRBUF_INIT;
+
+               if (strbuf_check_branch_ref(&sb, argv[2]))
+                       die("'%s' is not a valid branch name", argv[2]);
+               printf("%s\n", sb.buf + 11);
+               exit(0);
+       }
        if (argc != 2)
-               usage("git-check-ref-format refname");
+               usage("git check-ref-format refname");
        return !!check_ref_format(argv[1]);
 }