Create lib module, added update_frame_range function

colorbleed/fusion/lib.py

@@ -0,0 +1,40 @@
+import sys
+
+import avalon.fusion
+
+
+self = sys.modules[__name__]
+self._project = None
+
+
+def update_frame_range(start, end, comp=None, set_render_range=True):
+    """Set Fusion comp's start and end frame range
+
+    Args:
+        start (float, int): start frame
+        end (float, int): end frame
+        comp (object, Optional): comp object from fusion
+        set_render_range (bool, Optional): When True this will also set the
+            composition's render start and end frame.
+
+    Returns:
+        None
+
+    """
+
+    if not comp:
+        comp = avalon.fusion.get_current_comp()
+
+    attrs = {
+        "COMPN_GlobalStart": start,
+        "COMPN_GlobalEnd": end
+    }
+
+    if set_render_range:
+        attrs.update({
+            "COMPN_RenderStart": start,
+            "COMPN_RenderEnd": end
+        })
+
+    with avalon.fusion.comp_lock_and_undo_chunk(comp):
+        comp.SetAttrs(attrs)