[plugin] always enable builtin plugin by default.

Signed-off-by: Eric Wang <[email protected]>

Author: skygragon

lib/plugin.js

@@ -21,7 +21,8 @@ function Plugin(id, name, ver, desc, deps) {
 
   this.enabled = true;
   this.deleted = false;
-  this.missing = (ver === 'missing');
+  this.missing = (this.ver === 'missing');
+  this.builtin = (this.ver === 'default');
 
   // only need deps for current platform
   this.deps = _.chain(deps || [])
@@ -93,10 +94,15 @@ Plugin.init = function(head) {
 
     p.file = f.file;
     p.enabled = stats[p.name];
-    // not saved before? enable it by default
+
     if (!(p.name in stats)) {
-      log.trace('new plugin, enable by default');
-      p.enabled = true;
+      if (p.builtin) {
+        log.trace('new builtin plugin, enable by default');
+        p.enabled = true;
+      } else {
+        log.trace('new 3rd party plugin, disable by default');
+        p.enabled = false;
+      }
     }
     installed.push(p);
   }