flame: adding xml preset modify method

openpype/hosts/flame/api/__init__.py

@@ -68,7 +68,8 @@ from .workio import (
 )
 from .render_utils import (
     export_clip,
-    get_preset_path_by_xml_name
+    get_preset_path_by_xml_name,
+    modify_preset_file
 )
 
 __all__ = [
@@ -140,5 +141,6 @@ __all__ = [
 
     # render utils
     "export_clip",
-    "get_preset_path_by_xml_name"
+    "get_preset_path_by_xml_name",
+    "modify_preset_file"
 ]

openpype/hosts/flame/api/render_utils.py

@@ -1,4 +1,5 @@
 import os
+from xml.etree import ElementTree as ET
 
 
 def export_clip(export_path, clip, preset_path, **kwargs):
@@ -123,3 +124,29 @@ def get_preset_path_by_xml_name(xml_preset_name):
 
     # if nothing found then return False
     return False
+
+
+def modify_preset_file(xml_path, staging_dir, data):
+    """Modify xml preset with input data
+
+    Args:
+        xml_path (str ): path for input xml preset
+        staging_dir (str): staging dir path
+        data (dict): data where key is xmlTag and value as string
+
+    Returns:
+        str: _description_
+    """
+    # create temp path
+    dirname, basename = os.path.split(xml_path)
+    temp_path = os.path.join(staging_dir, basename)
+
+    # change xml following data keys
+    with open(xml_path, "r") as datafile:
+        tree = ET.parse(datafile)
+        for key, value in data.items():
+            for element in tree.findall(".//{}".format(key)):
+                element.text = str(value)
+        tree.write(temp_path)
+
+    return temp_path