rev-list --boundary: show boundary commits even when limited otherwise.

The boundary commits are shown for UI like gitk to draw them as
soon as topo-order sorting allows, and should not be omitted by
get_revision() filtering logic.  As long as their immediate
child commits are shown, we should not filter them out.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/http-push.c b/http-push.c
index 19a0f77..114d01b 100644 (file)
--- a/http-push.c
+++ b/http-push.c
@@ -60,12 +60,12 @@ enum XML_Status {
 #define LOCK_TIME 600
 #define LOCK_REFRESH 30
 
-/* bits #0-6 in revision.h */
+/* bits #0-15 in revision.h */
 
-#define LOCAL    (1u << 7)
-#define REMOTE   (1u << 8)
-#define FETCHING (1u << 9)
-#define PUSHING  (1u << 10)
+#define LOCAL    (1u<<16)
+#define REMOTE   (1u<<17)
+#define FETCHING (1u<<18)
+#define PUSHING  (1u<<19)
 
 /* We allow "recursive" symbolic refs. Only within reason, though */
 #define MAXDEPTH 5

diff --git a/rev-list.c b/rev-list.c
index 963707a..f5511e7 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -8,9 +8,9 @@
 #include "diff.h"
 #include "revision.h"
 
-/* bits #0-6 in revision.h */
+/* bits #0-15 in revision.h */
 
-#define COUNTED                (1u<<7)
+#define COUNTED                (1u<<16)
 
 static const char rev_list_usage[] =
 "git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"

diff --git a/revision.c b/revision.c
index 0505f3f..e1f9816 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -750,6 +750,17 @@ static void rewrite_parents(struct rev_info *revs, struct commit *commit)
        }
 }
 
+static void mark_boundary_to_show(struct commit *commit)
+{
+       struct commit_list *p = commit->parents;
+       while (p) {
+               commit = p->item;
+               p = p->next;
+               if (commit->object.flags & BOUNDARY)
+                       commit->object.flags |= BOUNDARY_SHOW;
+       }
+}
+
 struct commit *get_revision(struct rev_info *revs)
 {
        struct commit_list *list = revs->commits;
@@ -787,8 +798,20 @@ struct commit *get_revision(struct rev_info *revs)
                }
                if (commit->object.flags & SHOWN)
                        continue;
-               if (!(commit->object.flags & BOUNDARY) &&
-                   (commit->object.flags & UNINTERESTING))
+
+               /* We want to show boundary commits only when their
+                * children are shown.  When path-limiter is in effect,
+                * rewrite_parents() drops some commits from getting shown,
+                * and there is no point showing boundary parents that
+                * are not shown.  After rewrite_parents() rewrites the
+                * parents of a commit that is shown, we mark the boundary
+                * parents with BOUNDARY_SHOW.
+                */
+               if (commit->object.flags & BOUNDARY_SHOW) {
+                       commit->object.flags |= SHOWN;
+                       return commit;
+               }
+               if (commit->object.flags & UNINTERESTING)
                        continue;
                if (revs->min_age != -1 && (commit->date > revs->min_age))
                        continue;
@@ -801,6 +824,8 @@ struct commit *get_revision(struct rev_info *revs)
                        if (revs->parents)
                                rewrite_parents(revs, commit);
                }
+               if (revs->boundary)
+                       mark_boundary_to_show(commit);
                commit->object.flags |= SHOWN;
                return commit;
        } while (revs->commits);

diff --git a/revision.h b/revision.h
index 8970b57..4b27043 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -7,7 +7,8 @@
 #define SHOWN          (1u<<3)
 #define TMP_MARK       (1u<<4) /* for isolated cases; clean after use */
 #define BOUNDARY       (1u<<5)
-#define ADDED          (1u<<6) /* Parents already parsed and added? */
+#define BOUNDARY_SHOW  (1u<<6)
+#define ADDED          (1u<<7) /* Parents already parsed and added? */
 
 struct rev_info;