fixing menu context label re-drawing

openpype/hosts/nuke/api/__init__.py

@@ -54,6 +54,10 @@ def install():
     ''' Installing all requarements for Nuke host
     '''
 
+    # remove all registred callbacks form avalon.nuke
+    from avalon import pipeline
+    pipeline._registered_event_handlers.clear()
+
     log.info("Registering Nuke plug-ins..")
     pyblish.api.register_plugin_path(PUBLISH_PATH)
     avalon.api.register_plugin_path(avalon.api.Loader, LOAD_PATH)
@@ -62,6 +66,7 @@ def install():
 
     # Register Avalon event for workfiles loading.
     avalon.api.on("workio.open_file", lib.check_inventory_versions)
+    avalon.api.on("taskChanged", menu.change_context_label)
 
     pyblish.api.register_callback(
         "instanceToggled", on_pyblish_instance_toggled)

openpype/hosts/nuke/api/menu.py

@@ -10,10 +10,43 @@ from openpype.tools.utils import host_tools
 log = Logger().get_logger(__name__)
 
 menu_label = os.environ["AVALON_LABEL"]
+context_label = None
+
+
+def change_context_label(*args):
+    global context_label
+    menubar = nuke.menu("Nuke")
+    menu = menubar.findItem(menu_label)
+
+    label = "{0}, {1}".format(
+        os.environ["AVALON_ASSET"], os.environ["AVALON_TASK"]
+    )
+
+    rm_item = [
+        (i, item) for i, item in enumerate(menu.items())
+        if context_label in item.name()
+    ][0]
+
+    menu.removeItem(rm_item[1].name())
+
+    context_action = menu.addCommand(
+        label,
+        index=(rm_item[0])
+    )
+    context_action.setEnabled(False)
+
+    log.info("Task label changed from `{}` to `{}`".format(
+        context_label, label))
+
+    context_label = label
+
 
 
 def install():
     from openpype.hosts.nuke.api import reload_config
+
+    global context_label
+
     # uninstall original avalon menu
     uninstall()
 
@@ -24,6 +57,7 @@ def install():
     label = "{0}, {1}".format(
         os.environ["AVALON_ASSET"], os.environ["AVALON_TASK"]
     )
+    context_label = label
     context_action = menu.addCommand(label)
     context_action.setEnabled(False)