From 9ab55bd29a9f110810b72d82be912380f74051b3 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Mon, 23 May 2005 16:37:47 -0700
Subject: diff-tree: don't write headers if the diff queue is empty

This is not a pickaxe-specific thing, we do this regardless of
what has pruned down the diff queue.

diff --git a/diff-tree.c b/diff-tree.c
index 0d21b18..31f8019 100644
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -267,12 +267,12 @@ static int call_diff_flush(void)
 	if (detect_rename)
 		diffcore_rename(detect_rename, diff_score_opt);
 	diffcore_prune();
-	if (pickaxe) {
+	if (pickaxe)
 		diffcore_pickaxe(pickaxe);
-		if (diff_queue_is_empty()) {
-			diff_flush(DIFF_FORMAT_NO_OUTPUT, 0);
-			return 0;
-		}
+
+	if (diff_queue_is_empty()) {
+		diff_flush(DIFF_FORMAT_NO_OUTPUT, 0);
+		return 0;
 	}
 	if (nr_paths)
 		diffcore_pathspec(paths);
-- 
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