Merge branch 'develop' into enchancement/OP-2630_acescg_maya

# Conflicts:
#	openpype/hosts/maya/api/lib.py
#	openpype/hosts/maya/plugins/publish/collect_render.py
#	openpype/hosts/maya/startup/userSetup.py

openpype/hosts/maya/api/lib.py

@@ -255,11 +255,6 @@ def read(node):
     return data
 
 
-def _get_mel_global(name):
-    """Return the value of a mel global variable"""
-    return mel.eval("$%s = $%s;" % (name, name))
-
-
 def matrix_equals(a, b, tolerance=1e-10):
     """
     Compares two matrices with an imperfection tolerance
@@ -625,15 +620,15 @@ class delete_after(object):
             cmds.delete(self._nodes)
 
 
+def get_current_renderlayer():
+    return cmds.editRenderLayerGlobals(query=True, currentRenderLayer=True)
+
+
 def get_renderer(layer):
     with renderlayer(layer):
         return cmds.getAttr("defaultRenderGlobals.currentRenderer")
 
 
-def get_current_renderlayer():
-    return cmds.editRenderLayerGlobals(query=True, currentRenderLayer=True)
-
-
 @contextlib.contextmanager
 def no_undo(flush=False):
     """Disable the undo queue during the context
@@ -1374,27 +1369,6 @@ def set_id(node, unique_id, overwrite=False):
         cmds.setAttr(attr, unique_id, type="string")
 
 
-# endregion ID
-def get_reference_node(path):
-    """
-    Get the reference node when the path is found being used in a reference
-    Args:
-        path (str): the file path to check
-
-    Returns:
-        node (str): name of the reference node in question
-    """
-    try:
-        node = cmds.file(path, query=True, referenceNode=True)
-    except RuntimeError:
-        log.debug('File is not referenced : "{}"'.format(path))
-        return
-
-    reference_path = cmds.referenceQuery(path, filename=True)
-    if os.path.normpath(path) == os.path.normpath(reference_path):
-        return node
-
-
 def set_attribute(attribute, value, node):
     """Adjust attributes based on the value from the attribute data
 
@@ -3433,3 +3407,34 @@ def get_color_management_output_transform():
     if preferences["output_transform_enabled"]:
         colorspace = preferences["output_transform"]
     return colorspace
+
+
+def write_xgen_file(data, filepath):
+    """Overwrites data in .xgen files.
+
+    Quite naive approach to mainly overwrite "xgDataPath" and "xgProjectPath".
+
+    Args:
+        data (dict): Dictionary of key, value. Key matches with xgen file.
+        For example:
+            {"xgDataPath": "some/path"}
+        filepath (string): Absolute path of .xgen file.
+    """
+    # Generate regex lookup for line to key basically
+    # match any of the keys in `\t{key}\t\t`
+    keys = "|".join(re.escape(key) for key in data.keys())
+    re_keys = re.compile("^\t({})\t\t".format(keys))
+
+    lines = []
+    with open(filepath, "r") as f:
+        for line in f:
+            match = re_keys.match(line)
+            if match:
+                key = match.group(1)
+                value = data[key]
+                line = "\t{}\t\t{}\n".format(key, value)
+
+            lines.append(line)
+
+    with open(filepath, "w") as f:
+        f.writelines(lines)