Add GetFileExtension node

Author: Alxiice

meshroom/nodes/general/GetFileExtension.py

@@ -0,0 +1,27 @@
+__version__ = "1.0"
+
+import os
+from meshroom.core import desc
+
+
+class GetFileExtension(desc.InlineNode):
+    inputs = [
+        desc.File(
+            name="path",
+            value="",
+            exposed=True,
+        ),
+    ]
+
+    outputs = [
+        desc.StringParam(
+            name="extension",
+            value=None,
+        ),
+    ]
+
+    def process(self, node):
+        if not node.path.value:
+            node.extension.value = ""
+        else:
+            node.extension.value = os.path.splitext(node.path.value)[1]