在自定义grunt任务中访问子任务的更好方法？

Question

I'm new to Grunt and I've only built a few custom grunt tasks. My solution for traversing the initConfig to subtasks seems pretty unintuitive--I just threw a regex together and used a switch to figure out which subtask should be running. Is there a better way of getting here? Here's a sample Gruntfile:

module.exports = function(grunt) {
    grunt.initConfig({
        myTask: {
            add:{
               //files object, options etc
            },
            remove:{
               //files object, options etc                
            }
        }
    });
    grunt.registerMultiTask('myTask', 'A sample task with a regex and switch for subtasks', function() {
        var subTask = this.nameArgs.match(/.*?:(.*?):/)[1];
        switch(subTask){
            case "add":
                //code for task "add"
                break;
            case "remove":
                //code for task "remove"
                break;
        }
    });
};

Thanks!

Answer 1

In a multitask, the "subtask" is known as a target. It's accessible via this.target . For example (taken from http://gruntjs.com/api/grunt.task#grunt.task.registermultitask ):

grunt.initConfig({
  log: {
    foo: [1, 2, 3],
    bar: 'hello world',
    baz: false
  }
});

grunt.task.registerMultiTask('log', 'Log stuff.', function() {
  grunt.log.writeln(this.target + ': ' + this.data);
});

Running grunt log:foo would write out foo: 1,2,3 .

So in your code, you could replace the Regex line with:

var subTask = this.target;