diff.c: convert -U|--unified

diff --git a/commit.c b/commit.c
index bee7b7b62ef9ce61393c8657203fef71e5822225..d13a7bc3746406bdaf0bda0975c25b40111afe47 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -1099,7 +1099,33 @@ int check_commit_signature(const struct commit *commit, struct signature_check *
        return ret;
 }
 
+void verify_merge_signature(struct commit *commit, int verbosity)
+{
+       char hex[GIT_MAX_HEXSZ + 1];
+       struct signature_check signature_check;
+       memset(&signature_check, 0, sizeof(signature_check));
+
+       check_commit_signature(commit, &signature_check);
+
+       find_unique_abbrev_r(hex, &commit->object.oid, DEFAULT_ABBREV);
+       switch (signature_check.result) {
+       case 'G':
+               break;
+       case 'U':
+               die(_("Commit %s has an untrusted GPG signature, "
+                     "allegedly by %s."), hex, signature_check.signer);
+       case 'B':
+               die(_("Commit %s has a bad GPG signature "
+                     "allegedly by %s."), hex, signature_check.signer);
+       default: /* 'N' */
+               die(_("Commit %s does not have a GPG signature."), hex);
+       }
+       if (verbosity >= 0 && signature_check.result == 'G')
+               printf(_("Commit %s has a good GPG signature by %s\n"),
+                      hex, signature_check.signer);
 
+       signature_check_clear(&signature_check);
+}
 
 void append_merge_tag_headers(struct commit_list *parents,
                              struct commit_extra_header ***tail)