rev-list --max-age, --max-count: support --boundary

Now, when saying --max-age=<timestamp>, or --max-count=<n>, together
with --boundary, rev-list prints the boundary commits, i.e. the
commits which are _just_ not shown without --boundary, i.e. their
children are, but they aren't.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/revision.c b/revision.c
index 15bdaf6095ccbe690c664f80a5b25e354d068d61..4f298bacc79c801a658d40b31bc4a46f8ab96375 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1229,9 +1229,15 @@ static struct commit *get_revision_1(struct rev_info *revs)
                 */
                if (!revs->limited) {
                        if (revs->max_age != -1 &&
-                           (commit->date < revs->max_age))
-                               continue;
-                       add_parents_to_list(revs, commit, &revs->commits);
+                           (commit->date < revs->max_age)) {
+                               if (revs->boundary)
+                                       commit->object.flags |=
+                                               BOUNDARY_SHOW | BOUNDARY;
+                               else
+                                       continue;
+                       } else
+                               add_parents_to_list(revs, commit,
+                                               &revs->commits);
                }
                if (commit->object.flags & SHOWN)
                        continue;
@@ -1298,7 +1304,18 @@ struct commit *get_revision(struct rev_info *revs)
        case -1:
                break;
        case 0:
-               return NULL;
+               if (revs->boundary) {
+                       struct commit_list *list = revs->commits;
+                       while (list) {
+                               list->item->object.flags |=
+                                       BOUNDARY_SHOW | BOUNDARY;
+                               list = list->next;
+                       }
+                       /* all remaining commits are boundary commits */
+                       revs->max_count = -1;
+                       revs->limited = 1;
+               } else
+                       return NULL;
        default:
                revs->max_count--;
        }