1 files changed, 26 insertions, 0 deletions
diff --git a/deckit/modules/__init__.py b/deckit/modules/__init__.py
new file mode 100644
index 0000000..76fc9c5
--- /dev/null
+++ b/deckit/modules/__init__.py
@@ -0,0 +1,26 @@
+"""Module discovery.
+
+Every `deckit/modules/<name>.py` exporting `make(cfg) -> Module` is a module.
+Discovery is lazy and file-based, so a new module is a new file: nothing here
+lists the modules, and a not-yet-written one simply stays absent.
+"""
+
+import importlib
+from pathlib import Path
+
+from ..module import Registry
+
+
+def build(cfg: dict) -> Registry:
+    enabled = cfg.get("modules", {})
+    modules = []
+    for path in sorted(Path(__file__).parent.glob("*.py")):
+        name = path.stem
+        if name == "__init__" or not enabled.get(name, True):
+            continue
+        try:
+            mod = importlib.import_module(f"{__name__}.{name}")
+        except ImportError:
+            continue
+        modules.append(mod.make(cfg))
+    return Registry(modules)