adding and loading maya mel workspace through openpype project setting

openpype/hosts/maya/api/pipeline.py

@@ -59,7 +59,7 @@ class MayaHost(HostBase, IWorkfileHost, ILoadHost):
         self._op_events = {}
 
     def install(self):
-        project_settings = get_project_settings(os.getenv("AVALON_PROJECT"))
+        project_settings = get_project_settings(legacy_io.active_project())
         # process path mapping
         dirmap_processor = MayaDirmap("maya", project_settings)
         dirmap_processor.process_dirmap()
@@ -536,7 +536,7 @@ def on_task_changed():
         lib.update_content_on_context_change()
 
     msg = "  project: {}\n  asset: {}\n  task:{}".format(
-        legacy_io.Session["AVALON_PROJECT"],
+        legacy_io.active_project(),
         legacy_io.Session["AVALON_ASSET"],
         legacy_io.Session["AVALON_TASK"]
     )
@@ -548,7 +548,7 @@ def on_task_changed():
 
 
 def before_workfile_save(event):
-    project_name = os.getenv("AVALON_PROJECT")
+    project_name = legacy_io.active_project()
     workdir_path = event["workdir_path"]
     if workdir_path:
         create_workspace_mel(workdir_path, project_name)

openpype/hosts/maya/lib.py

@@ -1,6 +1,6 @@
 import os
 from openpype.settings import get_project_settings
-
+from openpype.api import Logger
 
 def create_workspace_mel(workdir, project_name):
     dst_filepath = os.path.join(workdir, "workspace.mel")
@@ -15,7 +15,8 @@ def create_workspace_mel(workdir, project_name):
 
     # Skip if mel script in settings is empty
     if not mel_script:
-        return
+        log = Logger.get_logger("create_workspace_mel")
+        log.debug("File 'workspace.mel' not created. Settings value is empty.")
 
     with open(dst_filepath, "w") as mel_file:
         mel_file.write(mel_script)

openpype/settings/entities/schemas/projects_schema/schema_project_maya.json

@@ -8,6 +8,7 @@
         {
             "type": "text",
             "multiline" : true,
+            "use_label_wrap": true,
             "key": "mel_workspace",
             "label": "Maya MEL Workspace"
          },