It's quite common for tasks to require a minimum set of configurations in order for them to function properly. The Grunt framework provides the grunt.config.requires function specifically for this case, failing a task if the indicated configuration is not found.
In this example, we'll work with the basic project structure we created in the Installing Grunt on a project recipe in Chapter 1, Getting Started with Grunt. Be sure to refer to it if you are not yet familiar with its contents.
If any of the steps in this recipe seem hard to follow, be sure to check out the Creating a basic task recipe provided earlier in this chapter.
The following steps will take us through creating two tasks: the first will check for the required configurations that we will supply and the second will check for the configurations we will not supply.
First, we'll add some sample project configurations using the
grunt.initConfigfunction. The following...