copy-overlay. ./build broken btw :-)

copy-overlay

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import distutils.dir_util
+import os
+import shutil
+
+import common
+
+class CopyOverlayComponent(common.Component):
+    def do_build(self, args):
+        distutils.dir_util.copy_tree(
+            common.rootfs_overlay_dir,
+            common.out_rootfs_overlay_dir,
+            update=1,
+        )
+
+    def get_argparse_args(self):
+        return {
+            'description': '''\
+Copy our git tracked rootfs_overlay to the final generated rootfs_overlay
+that also contains generated build outputs. This has the following advantages
+over just adding that to BR2_ROOTFS_OVERLAY:
+- also works for non Buildroot root filesystesms
+- places everything in one place for a nice 9P mount
+''',
+        }
+
+if __name__ == '__main__':
+    CopyOverlayComponent().build()