/**
  * Bulk push all posts to GitHub
  */
 function export()
 {
     global $wpdb;
     $posts = $wpdb->get_col("SELECT ID FROM {$wpdb->posts} WHERE post_status = 'publish' AND post_type IN ('post', 'page' )");
     foreach ($posts as $post_id) {
         $post = new WordPress_GitHub_Sync_Post($post_id);
         $post->push();
     }
 }