[feat] Abyssctl Basic functions

abyssctl/App/Attributes/ModuleAttribute.cs

@@ -0,0 +1,28 @@
+using System.Reflection;
+using abyssctl.App.Interfaces;
+using CommandLine;
+
+namespace abyssctl.App.Attributes;
+
+[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
+public class ModuleAttribute(int head) : Attribute
+{
+    public int Head { get; } = head;
+    
+    public static Type[] Modules
+    {
+        get
+        {
+            Assembly assembly = Assembly.GetExecutingAssembly();
+            const string targetNamespace = "abyssctl.App.Modules";
+            
+            return assembly.GetTypes()
+                .Where(t => t is { IsClass: true, IsAbstract: false, IsInterface: false })
+                .Where(t => t.Namespace == targetNamespace)
+                .Where(t => typeof(IOptions).IsAssignableFrom(t))
+                .Where(t => t.IsDefined(typeof(VerbAttribute), inherit: true))
+                .Where(t => t.IsDefined(typeof(ModuleAttribute), inherit: false))
+                .ToArray();
+        }
+    }
+}