diff --git a/pisi/actionsapi/shelltools.py b/pisi/actionsapi/shelltools.py
index 9424ad4e..233ae9e3 100644
--- a/pisi/actionsapi/shelltools.py
+++ b/pisi/actionsapi/shelltools.py
@@ -100,3 +100,14 @@ def exists_binary(bin):
         if exists( join(directory, bin) ):
             return True
     return False
+
+def isLink(sourceFile):
+    return os.path.islink(sourceFile)
+
+def realPath(sourceFile):
+    return os.path.realpath(sourceFile)
+
+def baseName(sourceFile):
+    return os.path.basename(sourceFile)
+
+