Warn on no setExpire in file store

TODO.md

@@ -3,3 +3,4 @@
 * fix that chrome bug where it loads the doc twice
 * Add file extensions ourselves to push state
 * add feedback for errors to UI - esp. too long
+* make sure file store still functions appropriately

lib/file_document_store.js

@@ -9,10 +9,11 @@ var hashlib = require('hashlib');
 
 var FileDocumentStore = function(options) {
   this.basePath = options.path || './data';
+  this.expire = options.expire;
 };
 
 // Save data in a file, key as md5 - since we don't know what we could be passed here
-FileDocumentStore.prototype.set = function(key, data, callback, setExpire) {
+FileDocumentStore.prototype.set = function(key, data, callback, skipExpire) {
   try {
     var _this = this;
     fs.mkdir(this.basePath, '700', function() {
@@ -22,6 +23,9 @@ FileDocumentStore.prototype.set = function(key, data, callback, setExpire) {
         }
         else {
           callback(true);
+          if (_this.expire && !skipExpire) {
+            winston.warn('file store cannot set expirations on keys'); 
+          }
         }
       });
     });
@@ -31,13 +35,17 @@ FileDocumentStore.prototype.set = function(key, data, callback, setExpire) {
 };
 
 // Get data from a file from key
-FileDocumentStore.prototype.get = function(key, callback, setExpire) {
+FileDocumentStore.prototype.get = function(key, callback, skipExpire) {
+  var _this = this;
   fs.readFile(this.basePath + '/' + hashlib.md5(key), 'utf8', function(err, data) {
     if (err) {
       callback(false);
     }
     else {
       callback(data);
+      if (_this.expire && !skipExpire) {
+        winston.warn('file store cannot set expirations on keys'); 
+      }
     }
   });
 };