build.cake

var target = Argument("target", "Welcome");

List<string> tasks = new List<string>();

Setup(context => {
    foreach(var task in context.TasksToExecute) {
    Information("task: {0}", task.Name);
        tasks.Append(task.Name);
    }
});

Task("A").Description("Performs A").Does(() => {});
Task("B").Description("Performs B").Does(() => {});
Task("C").IsDependentOn("B").Description("Performs C after A and B").Does(() => {});

Task("Welcome")
    .Does(() => {
        Information("Welcome to the Build Environment. Please run one of the targets: {0}", string.Join(", ", tasks));
        Environment.Exit(0);
    });

RunTarget(target);