int parse_opt_commits(const struct option *opt, const char *arg, int unset)
{
- unsigned char sha1[20];
+ struct object_id oid;
struct commit *commit;
if (!arg)
return -1;
- if (get_sha1(arg, sha1))
+ if (get_oid(arg, &oid))
return error("malformed object name %s", arg);
- commit = lookup_commit_reference(sha1);
+ commit = lookup_commit_reference(&oid);
if (!commit)
return error("no such commit %s", arg);
commit_list_insert(commit, opt->value);