Make sure get_sha1 does not accept ambiguous sha1 prefix (again).
[git/git.git] / symbolic-ref.c
CommitLineData
8098a178
JH
1#include "cache.h"
2
3static const char git_symbolic_ref_usage[] =
4"git-symbolic-ref name [ref]";
5
6static int 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
20int main(int argc, const char **argv)
21{
22 setup_git_directory();
23 switch (argc) {
24 case 2:
25 check_symref(argv[1]);
26 break;
27 case 3:
28 create_symref(strdup(git_path("%s", argv[1])), argv[2]);
29 break;
30 default:
31 usage(git_symbolic_ref_usage);
32 }
33 return 0;
34}