move unreal to self contained host

pype/hosts/celaction/hooks/pre_celaction_registers.py

@@ -7,10 +7,7 @@ from pype.hosts.celaction import api as celaction
 
 class CelactionPrelaunchHook(PreLaunchHook):
     """
-    This hook will check if current workfile path has Unreal
-    project inside. IF not, it initialize it and finally it pass
-    path to the project by environment variable to Unreal launcher
-    shell script.
+    Bootstrap celacion with pype
     """
     workfile_ext = "scn"
     app_groups = ["celaction"]

pype/hosts/unreal/api/__init__.py

@@ -3,13 +3,16 @@ import logging
 
 from avalon import api as avalon
 from pyblish import api as pyblish
-from pype import PLUGINS_DIR
+import pype.hosts.unreal
 
 logger = logging.getLogger("pype.hosts.unreal")
 
-PUBLISH_PATH = os.path.join(PLUGINS_DIR, "unreal", "publish")
-LOAD_PATH = os.path.join(PLUGINS_DIR, "unreal", "load")
-CREATE_PATH = os.path.join(PLUGINS_DIR, "unreal", "create")
+HOST_DIR = os.path.dirname(os.path.abspath(pype.hosts.unreal.__file__))
+PLUGINS_DIR = os.path.join(HOST_DIR, "plugins")
+PUBLISH_PATH = os.path.join(PLUGINS_DIR, "publish")
+LOAD_PATH = os.path.join(PLUGINS_DIR, "load")
+CREATE_PATH = os.path.join(PLUGINS_DIR, "create")
+INVENTORY_PATH = os.path.join(PLUGINS_DIR, "inventory")
 
 
 def install():

pype/hosts/unreal/hooks/pre_workfile_preparation.py

@@ -4,7 +4,7 @@ from pype.lib import (
     PreLaunchHook,
     ApplicationLaunchFailed
 )
-from pype.hosts.unreal import lib as unreal_lib
+from pype.hosts.unreal.api import lib as unreal_lib
 
 
 class UnrealPrelaunchHook(PreLaunchHook):

pype/hosts/unreal/plugins/create/create_staticmeshfbx.py

@@ -1,5 +1,5 @@
 import unreal
-from pype.hosts.unreal.plugin import Creator
+from pype.hosts.unreal.api.plugin import Creator
 from avalon.unreal import (
     instantiate,
 )