Skip past symlinks and problems in oglive modification

installer/opengnsys_git_installer.py

@@ -428,6 +428,14 @@ class OpengnsysGitInstaller:
                     #self.__logger.debug("%s", abs_path)
                     digest = None
 
+                    if os.path.islink(abs_path):
+                        self.__logger.debug("%s is a symlink", abs_path)
+                        continue
+
+                    if not os.path.exists(abs_path):
+                        self.__logger.debug("%s does not exist", abs_path)
+                        continue
+
                     stat_data = os.stat(abs_path)
                     with open(full_path, "rb") as in_file:
                         digest = hashlib.file_digest(in_file, "sha256").hexdigest()