git: use commit date as traversal hint instead of author date

Although git9 always uses the same commit date and author date, other
implementation do make a distinction.  Since commit date is more
representative of the commit graph order, use this as a traversal hint
instead of author date.

2 files changed, 5 insertions, 5 deletions

diff --git a/sys/src/cmd/git/git.h b/sys/src/cmd/git/git.h
index cc39542dc..4e74333c5 100644
--- a/sys/src/cmd/git/git.h
+++ b/sys/src/cmd/git/git.h
@@ -158,7 +158,7 @@ struct Objset {
 
 struct Qelt {
 	Object	*o;
-	vlong	mtime;
+	vlong	ctime;
 	int	color;
 };
 
diff --git a/sys/src/cmd/git/util.c b/sys/src/cmd/git/util.c
index 529dda41d..1d2398a7e 100644
--- a/sys/src/cmd/git/util.c
+++ b/sys/src/cmd/git/util.c
@@ -349,9 +349,9 @@ qput(Objq *q, Object *o, int color)
 	}
 	q->heap[q->nheap].o = o;
 	q->heap[q->nheap].color = color;
-	q->heap[q->nheap].mtime = o->commit->mtime;
+	q->heap[q->nheap].ctime = o->commit->ctime;
 	for(i = q->nheap; i > 0; i = (i-1)/2){
-		if(q->heap[i].mtime < q->heap[(i-1)/2].mtime)
+		if(q->heap[i].ctime < q->heap[(i-1)/2].ctime)
 			break;
 		t = q->heap[i];
 		q->heap[i] = q->heap[(i-1)/2];
@@ -378,9 +378,9 @@ qpop(Objq *q, Qelt *e)
 		m = i;
 		l = 2*i+1;
 		r = 2*i+2;
-		if(l < q->nheap && q->heap[m].mtime < q->heap[l].mtime)
+		if(l < q->nheap && q->heap[m].ctime < q->heap[l].ctime)
 			m = l;
-		if(r < q->nheap && q->heap[m].mtime < q->heap[r].mtime)
+		if(r < q->nheap && q->heap[m].ctime < q->heap[r].ctime)
 			m = r;
 		if(m == i)
 			break;