diff --git a/exporter.py b/exporter.py
index 2a00557..1520da2 100755
--- a/exporter.py
+++ b/exporter.py
@@ -39,7 +39,7 @@
     return lambda v: make_type(v) if condition(make_type(v)) else None
 
   def folder(self, v):
-    path = os.path.abspath(os.getcwd() + "/" + v)
+    path = abspath(v)
     if os.path.isdir(path):
       return path
     return None
@@ -139,6 +139,13 @@
   return {"type": args["type"] if "type" in args else 1, \
           "scale": args["scale"] if "scale" in args else 1}
 
+class Job:
+  next_id = 0
+  __init__(self, base_cmd, job_cmd):
+    self.id = next_id
+    next_id += 1
+
+
 num_jobs_sent = 0
 def send_job(conn, base_cmd, in_file):
   global num_jobs_sent
@@ -239,3 +246,13 @@
 if (conn):
   conn.close()
 s.close()
+
+def abspath(path):
+  return os.path.abspath(os.path.expanduser(path))
+
+def file_in_path(file, path):
+  file = abspath(file)
+  path = abspath(path)
+  if not os.path.isdir(path) or not os.path.isfile(file):
+    return False
+  return os.path.commonprefix(path, file) == path