Merge pull request #4 from manifoldjs/v0.1.1

Fixed issue determining available platforms in manifoldjs project

Author: boyofgreen

lib/projectTools.js

@@ -114,15 +114,22 @@ function getProjectPlatforms (dir) {
   // get available platform IDs  
   var availablePlatforms = platformTools.listPlatforms();
 
-  // search child platform folders  
-  return Q.nfcall(fs.readdir, dir).then(function (files) {    
-    var platforms = files.filter(function (file) {
+  return getProjectRoot(dir || process.cwd()).then(function (rootDir) {
 
-      // filter folders not matching a platform ID
-      return availablePlatforms.indexOf(file) >= 0;
+    if (!rootDir) {
+      return Q.reject(new Error('The specified directory does not appear to contain a valid manifoldjs project.'));
+    }
+  
+    // search child platform folders  
+    return Q.nfcall(fs.readdir, rootDir).then(function (files) {    
+      var platforms = files.filter(function (file) {
+
+        // filter folders not matching a platform ID
+        return availablePlatforms.indexOf(file) >= 0;
+      });
+      
+      return platforms;
     });
-    
-    return platforms;
   });
 }