From 631dd1cc5fb3805c5dc025921668d9a51d07a2aa Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@osmosoft.com>
Date: Mon, 25 Mar 2013 19:50:33 +0000
Subject: [PATCH] Added ability to disable file saving for specific tiddlers

---
 editions/clientserver/tiddlywiki.info              | 6 ++++++
 plugins/tiddlywiki/filesystem/filesystemadaptor.js | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/editions/clientserver/tiddlywiki.info b/editions/clientserver/tiddlywiki.info
index 42c5a0652..f224a8961 100644
--- a/editions/clientserver/tiddlywiki.info
+++ b/editions/clientserver/tiddlywiki.info
@@ -3,6 +3,12 @@
 		"tiddlywiki/tiddlyweb",
 		"tiddlywiki/filesystem"
 	],
+	"doNotSave": [
+		"$:/StoryList",
+		"$:/HistoryList",
+		"$:/status/IsLoggedIn",
+		"$:/status/UserName"
+	],
 	"includeWikis": [
 		"../tw5.com"
 	]
diff --git a/plugins/tiddlywiki/filesystem/filesystemadaptor.js b/plugins/tiddlywiki/filesystem/filesystemadaptor.js
index a8676afbd..0aee74eb3 100644
--- a/plugins/tiddlywiki/filesystem/filesystemadaptor.js
+++ b/plugins/tiddlywiki/filesystem/filesystemadaptor.js
@@ -101,7 +101,10 @@ FileSystemAdaptor.prototype.saveTiddler = function(tiddler,callback) {
 		if(err) {
 			return callback(err);
 		}
-		if(fileInfo.hasMetaFile) {
+		if($tw.boot.wikiInfo.doNotSave && $tw.boot.wikiInfo.doNotSave.indexOf(tiddler.fields.title) !== -1) {
+			// Don't save the tiddler if it's on the blacklist
+			callback(null,{},0);
+		} else if(fileInfo.hasMetaFile) {
 			// Save the tiddler as a separate body and meta file
 			var typeInfo = $tw.config.contentTypeInfo[fileInfo.type];
 			fs.writeFile(fileInfo.filepath,tiddler.fields.text,{encoding: typeInfo.encoding},function(err) {