git reflog expire: document --stale-fix option.
[git/git.git] / builtin-symbolic-ref.c
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640ce105 1#include "builtin.h"
8098a178 2#include "cache.h"
8da19775 3#include "refs.h"
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4
5static const char git_symbolic_ref_usage[] =
6"git-symbolic-ref name [ref]";
7
f5a5e9b9 8static void check_symref(const char *HEAD)
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9{
10 unsigned char sha1[20];
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11 int flag;
12 const char *refs_heads_master = resolve_ref(HEAD, sha1, 0, &flag);
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LT
13
14 if (!refs_heads_master)
8098a178 15 die("No such ref: %s", HEAD);
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16 else if (!(flag & REF_ISSYMREF))
17 die("ref %s is not a symbolic ref", HEAD);
ed378ec7 18 puts(refs_heads_master);
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19}
20
640ce105 21int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
8098a178 22{
27dedf0c 23 git_config(git_default_config);
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24 switch (argc) {
25 case 2:
26 check_symref(argv[1]);
27 break;
28 case 3:
ed378ec7 29 create_symref(argv[1], argv[2]);
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30 break;
31 default:
32 usage(git_symbolic_ref_usage);
33 }
34 return 0;
35}