check-ref-format: handle subcommands in separate functions

The code for each subcommand should be easier to read and manipulate
this way.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c
index b106c65d80dfc8fe794d46e34ea1ff78b04f3056..8707ee935a0ef8c6b6859c0f078c6d51b2269af2 100644 (file)
--- a/builtin/check-ref-format.c
+++ b/builtin/check-ref-format.c
@@ -33,28 +33,36 @@ static void collapse_slashes(char *dst, const char *src)
        *dst = '\0';
 }
 
+static int check_ref_format_branch(const char *arg)
+{
+       struct strbuf sb = STRBUF_INIT;
+
+       if (strbuf_check_branch_ref(&sb, arg))
+               die("'%s' is not a valid branch name", arg);
+       printf("%s\n", sb.buf + 11);
+       return 0;
+}
+
+static int check_ref_format_print(const char *arg)
+{
+       char *refname = xmalloc(strlen(arg) + 1);
+
+       if (check_ref_format(arg))
+               return 1;
+       collapse_slashes(refname, arg);
+       printf("%s\n", refname);
+       return 0;
+}
+
 int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
 {
        if (argc == 2 && !strcmp(argv[1], "-h"))
                usage(builtin_check_ref_format_usage);
 
-       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 == 3 && !strcmp(argv[1], "--print")) {
-               char *refname = xmalloc(strlen(argv[2]) + 1);
-
-               if (check_ref_format(argv[2]))
-                       exit(1);
-               collapse_slashes(refname, argv[2]);
-               printf("%s\n", refname);
-               exit(0);
-       }
+       if (argc == 3 && !strcmp(argv[1], "--branch"))
+               return check_ref_format_branch(argv[2]);
+       if (argc == 3 && !strcmp(argv[1], "--print"))
+               return check_ref_format_print(argv[2]);
        if (argc != 2)
                usage(builtin_check_ref_format_usage);
        return !!check_ref_format(argv[1]);