backward compat

package.json

@@ -100,7 +100,7 @@
         "c9.ide.preview": "#5f5fff0185",
         "c9.ide.preview.browser": "#897177be7f",
         "c9.ide.preview.markdown": "#c3174d86e0",
-        "c9.ide.pubsub": "#933baeb7b4",
+        "c9.ide.pubsub": "#b20bdfb12a",
         "c9.ide.readonly": "#719881e192",
         "c9.ide.recentfiles": "#7c099abf40",
         "c9.ide.remote": "#301d2ab519",

plugins/c9.vfs.client/vfs.ping.js

@@ -1,7 +1,7 @@
 define(function(require, exports, module) {
     "use strict";
 
-    main.consumes = ["Plugin", "ext", "c9", "vfs", "metrics"];
+    main.consumes = ["Plugin", "ext", "c9", "vfs"];
     main.provides = ["vfs.ping"];
     return main;
 
@@ -9,7 +9,6 @@ define(function(require, exports, module) {
         var Plugin = imports.Plugin;
         var c9 = imports.c9;
         var ext = imports.ext;
-        var metrics = imports.metrics;
 
         /***** Initialization *****/
 
@@ -17,13 +16,17 @@ define(function(require, exports, module) {
         var api;
 
         var loaded = false;
-        function load(){
+        function load(oldVfs) {
-            if (loaded) return;
+            if (loaded && !oldVfs) return;
             loaded = true;
             
             ext.loadRemotePlugin("ping", {
-                file: "c9.vfs.client/ping-service.js"
+                file: oldVfs ? undefined : "c9.vfs.client/ping-service.js",
+                code: oldVfs ? require("text!./ping-service.js") : undefined
             }, function(err, remote) {
+                if (!remote && !oldVfs)
+                    return load(true);
+                
                 if (!remote)
                     return console.error(err);
 

plugins/c9.vfs.server/vfs_wrapper.js

@@ -83,11 +83,13 @@ module.exports = function(vfs, options) {
                 return callback(new error.Forbidden("VFS extend: " + name + " is not authorized in read only mode"));
         }
         
-        if (options.code || options.stream)
+        // localfs extend checks for file, then code, then stream
-            return vfs.extend(name, options, callback);
+        if (!options.file) {
+            if (options.code || options.stream)
+                return vfs.extend(name, options, callback);
             
-        if (!options.file)
             return callback(new error.Forbidden("Option 'file' is missing"));
+        }
         
         if (typeof options.file != "string")
             return callback(new error.Forbidden("Invalid option 'file'"));