merged with upstreamHEADmaster

1 files changed, 15 insertions, 0 deletions

diff --git a/archinstall/lib/utils/singleton.py b/archinstall/lib/utils/singleton.py
new file mode 100644
index 00000000..55be70eb
--- /dev/null
+++ b/archinstall/lib/utils/singleton.py
@@ -0,0 +1,15 @@
+from typing import Dict, Any
+
+
+class _Singleton(type):
+	""" A metaclass that creates a Singleton base class when called. """
+	_instances: Dict[Any, Any] = {}
+
+	def __call__(cls, *args, **kwargs):
+		if cls not in cls._instances:
+			cls._instances[cls] = super().__call__(*args, **kwargs)
+		return cls._instances[cls]
+
+
+class Singleton(_Singleton('SingletonMeta', (object,), {})):  # type: ignore
+	pass