Add group_id and fix remove printer

CURA-6483

 - Added a unique group_id (a GUID) to all created GlobalStack.
 - Changed version upgrade to generate unique group_ids for
   GlobalStacks.
 - RemoveMachine() now uses group_ids to remove hidden GlobalStacks.

1 files changed, 9 insertions, 0 deletions

diff --git a/plugins/VersionUpgrade/VersionUpgrade40to41/VersionUpgrade40to41.py b/plugins/VersionUpgrade/VersionUpgrade40to41/VersionUpgrade40to41.py
index 03272e63d5..845e9cbb8c 100644
--- a/plugins/VersionUpgrade/VersionUpgrade40to41/VersionUpgrade40to41.py
+++ b/plugins/VersionUpgrade/VersionUpgrade40to41/VersionUpgrade40to41.py
@@ -3,6 +3,7 @@
 
 import configparser
 import io
+import uuid
 from typing import Dict, List, Tuple
 
 from UM.VersionUpgrade import VersionUpgrade
@@ -18,6 +19,7 @@ _renamed_quality_profiles = {
     "gmax15plus_pla_very_thick": "gmax15plus_global_very_thick"
 } # type: Dict[str, str]
 
+
 ##  Upgrades configurations from the state they were in at version 4.0 to the
 #   state they should be in at version 4.1.
 class VersionUpgrade40to41(VersionUpgrade):
@@ -95,6 +97,13 @@ class VersionUpgrade40to41(VersionUpgrade):
         if parser["containers"]["4"] in _renamed_quality_profiles:
             parser["containers"]["4"] = _renamed_quality_profiles[parser["containers"]["4"]]
 
+        # Assign a GlobalStack to a unique group_id. If the GlobalStack has a UM network connection, use the UM network
+        # key as the group_id.
+        if "um_network_key" in parser["metadata"]:
+            parser["metadata"]["group_id"] = parser["metadata"]["um_network_key"]
+        elif "group_id" not in parser["metadata"]:
+            parser["metadata"]["group_id"] = str(uuid.uuid4())
+
         result = io.StringIO()
         parser.write(result)
         return [filename], [result.getvalue()]