rebase: prepare to do generic housekeeping

diff --git a/commit.c b/commit.c
index 1a41757ee377d804782ccfb4e27c54b607dcf91d..888e02ae2f65ab566555465e5d88d02bbe52420f 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -463,14 +463,23 @@ static void clear_commit_marks_1(struct commit_list **plist,
        }
 }
 
-void clear_commit_marks(struct commit *commit, unsigned int mark)
+void clear_commit_marks_many(int nr, struct commit **commit, unsigned int mark)
 {
        struct commit_list *list = NULL;
-       commit_list_insert(commit, &list);
+
+       while (nr--) {
+               commit_list_insert(*commit, &list);
+               commit++;
+       }
        while (list)
                clear_commit_marks_1(&list, pop_commit(&list), mark);
 }
 
+void clear_commit_marks(struct commit *commit, unsigned int mark)
+{
+       clear_commit_marks_many(1, &commit, mark);
+}
+
 void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark)
 {
        struct object *object;
@@ -797,8 +806,7 @@ struct commit_list *get_merge_bases_many(struct commit *one,
        if (!result || !result->next) {
                if (cleanup) {
                        clear_commit_marks(one, all_flags);
-                       for (i = 0; i < n; i++)
-                               clear_commit_marks(twos[i], all_flags);
+                       clear_commit_marks_many(n, twos, all_flags);
                }
                return result;
        }
@@ -816,8 +824,7 @@ struct commit_list *get_merge_bases_many(struct commit *one,
        free_commit_list(result);
 
        clear_commit_marks(one, all_flags);
-       for (i = 0; i < n; i++)
-               clear_commit_marks(twos[i], all_flags);
+       clear_commit_marks_many(n, twos, all_flags);
 
        cnt = remove_redundant(rslt, cnt);
        result = NULL;
@@ -852,25 +859,36 @@ int is_descendant_of(struct commit *commit, struct commit_list *with_commit)
 }
 
 /*
- * Is "commit" an ancestor of (i.e. reachable from) the "reference"?
+ * Is "commit" an ancestor of one of the "references"?
  */
-int in_merge_bases(struct commit *commit, struct commit *reference)
+int in_merge_bases_many(struct commit *commit, int nr_reference, struct commit **reference)
 {
        struct commit_list *bases;
-       int ret = 0;
+       int ret = 0, i;
 
-       if (parse_commit(commit) || parse_commit(reference))
+       if (parse_commit(commit))
                return ret;
+       for (i = 0; i < nr_reference; i++)
+               if (parse_commit(reference[i]))
+                       return ret;
 
-       bases = paint_down_to_common(commit, 1, &reference);
+       bases = paint_down_to_common(commit, nr_reference, reference);
        if (commit->object.flags & PARENT2)
                ret = 1;
        clear_commit_marks(commit, all_flags);
-       clear_commit_marks(reference, all_flags);
+       clear_commit_marks_many(nr_reference, reference, all_flags);
        free_commit_list(bases);
        return ret;
 }
 
+/*
+ * Is "commit" an ancestor of (i.e. reachable from) the "reference"?
+ */
+int in_merge_bases(struct commit *commit, struct commit *reference)
+{
+       return in_merge_bases_many(commit, 1, &reference);
+}
+
 struct commit_list *reduce_heads(struct commit_list *heads)
 {
        struct commit_list *p;
@@ -1023,6 +1041,76 @@ static void handle_signed_tag(struct commit *parent, struct commit_extra_header
        free(buf);
 }
 
+static struct {
+       char result;
+       const char *check;
+} sigcheck_gpg_status[] = {
+       { 'G', "\n[GNUPG:] GOODSIG " },
+       { 'B', "\n[GNUPG:] BADSIG " },
+       { 'U', "\n[GNUPG:] TRUST_NEVER" },
+       { 'U', "\n[GNUPG:] TRUST_UNDEFINED" },
+};
+
+static void parse_gpg_output(struct signature_check *sigc)
+{
+       const char *buf = sigc->gpg_status;
+       int i;
+
+       /* Iterate over all search strings */
+       for (i = 0; i < ARRAY_SIZE(sigcheck_gpg_status); i++) {
+               const char *found, *next;
+
+               if (!prefixcmp(buf, sigcheck_gpg_status[i].check + 1)) {
+                       /* At the very beginning of the buffer */
+                       found = buf + strlen(sigcheck_gpg_status[i].check + 1);
+               } else {
+                       found = strstr(buf, sigcheck_gpg_status[i].check);
+                       if (!found)
+                               continue;
+                       found += strlen(sigcheck_gpg_status[i].check);
+               }
+               sigc->result = sigcheck_gpg_status[i].result;
+               /* The trust messages are not followed by key/signer information */
+               if (sigc->result != 'U') {
+                       sigc->key = xmemdupz(found, 16);
+                       found += 17;
+                       next = strchrnul(found, '\n');
+                       sigc->signer = xmemdupz(found, next - found);
+               }
+       }
+}
+
+void check_commit_signature(const struct commit* commit, struct signature_check *sigc)
+{
+       struct strbuf payload = STRBUF_INIT;
+       struct strbuf signature = STRBUF_INIT;
+       struct strbuf gpg_output = STRBUF_INIT;
+       struct strbuf gpg_status = STRBUF_INIT;
+       int status;
+
+       sigc->result = 'N';
+
+       if (parse_signed_commit(commit->object.sha1,
+                               &payload, &signature) <= 0)
+               goto out;
+       status = verify_signed_buffer(payload.buf, payload.len,
+                                     signature.buf, signature.len,
+                                     &gpg_output, &gpg_status);
+       if (status && !gpg_output.len)
+               goto out;
+       sigc->gpg_output = strbuf_detach(&gpg_output, NULL);
+       sigc->gpg_status = strbuf_detach(&gpg_status, NULL);
+       parse_gpg_output(sigc);
+
+ out:
+       strbuf_release(&gpg_status);
+       strbuf_release(&gpg_output);
+       strbuf_release(&payload);
+       strbuf_release(&signature);
+}
+
+
+
 void append_merge_tag_headers(struct commit_list *parents,
                              struct commit_extra_header ***tail)
 {