From 4a11dc4d16463ed0afaf387d0c33d00ba639f52e Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Tue, 1 Jul 2014 08:23:13 +0100
Subject: [PATCH] edittemplate: only generate a UUID on-demand

If the template doesn't use <TMPL_VAR UUID> there's no point in
incurring any cost.
---
 IkiWiki/Plugin/edittemplate.pm | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/IkiWiki/Plugin/edittemplate.pm b/IkiWiki/Plugin/edittemplate.pm
index 6e8c256da..b408dfcac 100644
--- a/IkiWiki/Plugin/edittemplate.pm
+++ b/IkiWiki/Plugin/edittemplate.pm
@@ -139,13 +139,15 @@ sub filltemplate ($$) {
 
 	$template->param(name => $page);
 
-	eval {
-		require UUID::Tiny;
-		UUID::Tiny->import(':std');
-		my $uuid;
-		$uuid = create_uuid_as_string(UUID_V4());
-		$template->param(uuid => $uuid);
-	};
+	if ($template->query(name => 'uuid')) {
+		eval {
+			require UUID::Tiny;
+			UUID::Tiny->import(':std');
+			my $uuid;
+			$uuid = create_uuid_as_string(UUID_V4());
+			$template->param(uuid => $uuid);
+		};
+	}
 
 	return $template->output;
 }
-- 
2.44.0