pull: handle --verify-signatures for unborn branch

[thirdparty/git.git] / commit.c

diff --git a/commit.c b/commit.c
index 1a6e632185346f518ed389f2d479c807a5f49927..9abb9971a8a0ec7ae68c1aee8aa066638b66b19f 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -874,6 +874,9 @@ static struct commit_list *paint_down_to_common(struct commit *one, int n,
        int i;
        uint32_t last_gen = GENERATION_NUMBER_INFINITY;
 
+       if (!min_generation)
+               queue.compare = compare_commits_by_commit_date;
+
        one->object.flags |= PARENT1;
        if (!n) {
                commit_list_append(one, &result);
@@ -891,7 +894,7 @@ static struct commit_list *paint_down_to_common(struct commit *one, int n,
                struct commit_list *parents;
                int flags;
 
-               if (commit->generation > last_gen)
+               if (min_generation && commit->generation > last_gen)
                        BUG("bad generation skip %8x > %8x at %s",
                            commit->generation, last_gen,
                            oid_to_hex(&commit->object.oid));
@@ -1376,7 +1379,33 @@ 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)