Upstream Tyrrrz/CliFx state of the touched files before 9ef5dcb635

CliFx/Binding/CommandAttribute.cs

@@ -0,0 +1,32 @@
+using System;
+
+namespace CliFx.Binding;
+
+/// <summary>
+/// Binds a type to a command.
+/// </summary>
+[AttributeUsage(AttributeTargets.Class, Inherited = false)]
+public class CommandAttribute(string? name) : Attribute
+{
+    /// <summary>
+    /// Initializes an instance of <see cref="CommandAttribute" />.
+    /// </summary>
+    public CommandAttribute()
+        : this(null) { }
+
+    /// <summary>
+    /// Command name.
+    /// </summary>
+    /// <remarks>
+    /// Command can have no name, in which case it's treated as the application's default (i.e., root) command.
+    /// Only one default command is allowed to be registered in an application.
+    /// All commands registered in an application must have unique names (comparison IS NOT case-sensitive).
+    /// </remarks>
+    public string? Name { get; } = name;
+
+    /// <summary>
+    /// Command description.
+    /// Used for display purposes in the help text.
+    /// </summary>
+    public string? Description { get; set; }
+}