Version upgrade for jobname_prefix -> job_name_template

CURA-5479

plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py

@@ -4,6 +4,8 @@
 import configparser
 from typing import Tuple, List, Dict
 import io
+
+from UM.Util import parseBool
 from UM.VersionUpgrade import VersionUpgrade
 
 
@@ -28,6 +30,13 @@ class VersionUpgrade462to47(VersionUpgrade):
         # Update version number.
         parser["metadata"]["setting_version"] = "15"
 
+        if "cura" in parser and "jobname_prefix" in parser["cura"]:
+            if not parseBool(parser["cura"]["jobname_prefix"]):
+                parser["cura"]["job_name_template"] = "{project_name}"
+            del parser["cura"]["jobname_prefix"]
+        # else: When the jobname_prefix preference is True or not set,
+        # the default value for job_name_template ("{machine_name_short}_{project_name}") will be used
+
         result = io.StringIO()
         parser.write(result)
         return [filename], [result.getvalue()]