trivial: retval of waitpid is not errno
[git.git] / symbolic-ref.c
1 #include "cache.h"
2
3 static const char git_symbolic_ref_usage[] =
4 "git-symbolic-ref name [ref]";
5
6 static void check_symref(const char *HEAD)
7 {
8         unsigned char sha1[20];
9         const char *git_HEAD = strdup(git_path("%s", HEAD));
10         const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 0);
11         if (git_refs_heads_master) {
12                 /* we want to strip the .git/ part */
13                 int pfxlen = strlen(git_HEAD) - strlen(HEAD);
14                 puts(git_refs_heads_master + pfxlen);
15         }
16         else
17                 die("No such ref: %s", HEAD);
18 }
19
20 int main(int argc, const char **argv)
21 {
22         setup_git_directory();
23         git_config(git_default_config);
24         switch (argc) {
25         case 2:
26                 check_symref(argv[1]);
27                 break;
28         case 3:
29                 create_symref(strdup(git_path("%s", argv[1])), argv[2]);
30                 break;
31         default:
32                 usage(git_symbolic_ref_usage);
33         }
34         return 0;
35 }