builtin-symbolic-ref.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3
   4 static const char git_symbolic_ref_usage[] =
   5 "git-symbolic-ref name [ref]";
   6
   7 static void check_symref(const char *HEAD)
   8 {
   9         unsigned char sha1[20];
  10         const char *refs_heads_master = resolve_ref(HEAD, sha1, 0);
  11
  12         if (!refs_heads_master)
  13                 die("No such ref: %s", HEAD);
  14         puts(refs_heads_master);
  15 }
  16
  17 int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
  18 {
  19         git_config(git_default_config);
  20         switch (argc) {
  21         case 2:
  22                 check_symref(argv[1]);
  23                 break;
  24         case 3:
  25                 create_symref(argv[1], argv[2]);
  26                 break;
  27         default:
  28                 usage(git_symbolic_ref_usage);
  29         }
  30         return 0;
  31 }