[WIP PATCH 18/22] a fast fix

[Bo Yang <struggleyb.nku@gmail.com>]

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
---
 line.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/line.c b/line.c
index c8c9ad3..ca8980d 100644
--- a/line.c
+++ b/line.c
@@ -975,13 +975,15 @@ static void assign_parents_range(struct rev_info *rev, struct commit *commit)
 		parents = parents->next;
 	}
 
+	/* Never print out any diff for a merge commit */
+	commit->object.flags &= ~NEED_PRINT;
 	/*
 	 * yes, this must be an evil merge.
 	 */
 	range = copy;
 	while (range) {
 		if (range->nr) {
-			commit->object.flags |= NEED_PRINT | EVIL_MERGE;
+			commit->object.flags |= EVIL_MERGE;
 			nontrivial = 1;
 		}
 		range = range->next;
@@ -1256,7 +1258,8 @@ static void line_log_flush(struct rev_info *rev, struct commit *c)
 	char *line_prefix = "";
 	struct strbuf *msgbuf;
 
-	if (range == NULL)
+	if (range == NULL || ! (c->object.flags & EVIL_MERGE ||
+							c->object.flags & NEED_PRINT))
 		return;
 
 	log.commit = c;
@@ -1310,7 +1313,9 @@ int cmd_line_log_walk(struct rev_info *rev)
 			assign_parents_range(rev, commit);
 		}
 
-		if (commit->object.flags & NEED_PRINT || rev->full_line_diff || rev->graph) {
+		if (commit->object.flags & NEED_PRINT ||
+			commit->object.flags & EVIL_MERGE ||
+			rev->full_line_diff || rev->graph) {
 			if (rev->graph)
 				graph_update(rev->graph, commit);
 			line_log_flush(rev, commit);
-- 
1.7.0.2.273.gc2413.dirty