From ddb8daa15a97a998c8cb99dbd716f2fd55ae1563 Mon Sep 17 00:00:00 2001
From: James Welford Anderson <james.w.anderson@gmail.com>
Date: Sun, 11 Jan 2015 06:44:56 +0900
Subject: [PATCH] add noclean parameter

deletes directory by default
---
 core/modules/commands/rendertiddlers.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/modules/commands/rendertiddlers.js b/core/modules/commands/rendertiddlers.js
index d3ec0a44a..d513688c5 100644
--- a/core/modules/commands/rendertiddlers.js
+++ b/core/modules/commands/rendertiddlers.js
@@ -38,8 +38,11 @@ Command.prototype.execute = function() {
 		pathname = path.resolve(this.commander.outputPath,this.params[2]),
 		type = this.params[3] || "text/html",
 		extension = this.params[4] || ".html",
+		deletedirectory = (this.params[5] || "") != "noclean",
 		tiddlers = wiki.filterTiddlers(filter);
-	$tw.utils.deleteDirectory(pathname);
+	if(deletedirectory){
+		$tw.utils.deleteDirectory(pathname);
+	}
 	$tw.utils.createDirectory(pathname);
 	$tw.utils.each(tiddlers,function(title) {
 		var parser = wiki.parseTiddler(template),