Script

If you want to do something before the first or after the last task has been run, you can use Setup and Teardown. A use case for this might be when you need to start some kind of server and want to make sure it gets torn down properly.

Setup(context =>
{
    // Executed BEFORE the first task.
});

Teardown(context =>
{
    // Executed AFTER the last task.
});

Setup will only be called if a call to RunTarget is made and the dependency graph is correct. If Cake doesn't run any tasks, neither Setup or Teardown will be called.

Task

You can also use TaskSetup and TaskTeardown if you want to do something before and after each task is run. A use case for this might be when you need to use custom logging for each task executed

TaskSetup(setupContext =>
{
    var message = string.Format("Task: {0}", setupContext.Task.Name);
    // custom logging
});

TaskTeardown(teardownContext =>
{
    var message = string.Format("Task: {0}", teardownContext.Task.Name);
    // custom logging
});