fix directory copying

lib/pipeline/pipeline.js

@@ -128,7 +128,7 @@ class Pipeline {
               filename = filename.replace(targetDir, '');
               self.logger.info("writing file " + (self.buildDir + targetDir + filename).bold.dim);
 
-              fs.copySync(self.buildDir + targetDir + filename, file.path, {overwrite: true});
+              fs.copySync(file.path, self.buildDir + targetDir + filename, {overwrite: true});
             });
           } else {
             let content = contentFiles.map(function (file) {