grunt-task-looper

Executes a list of tasks for each array element.

Getting Started

This plugin requires Grunt ~0.4.1

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-task-looper --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-task-looper');

Task "task-looper"

Run this task with the grunt task-looper command.

Options

onBeforeProcessingTasks

Type: Function

Callback function that is invoked before the tasks for an array element are processed (i.e. the corresponding tasks are executed). Receives the array element as first parameter.

onTasksProcessedSuccessfully

Type: Function

Callback function that is invoked when the tasks for an array element are processed successfully (i.e. the corresponding tasks completed without errors). Receives the array element as first parameter.

verbose

Type: Boolean Default: false

True to log the standard output of the tasks, false otherwise.

Parameters

list

Type: Array

The array that should be looped.

tasks

Type: Array

An array of executable tasks. If an array element is a function, it receives the current element from the list parameter as parameter and has to return a valid task name or empty string.

Usage examples

In the following example, the running task-looper:tests would first run grunt serve testrunner:a followed by grunt testrunner:b. Note that these two are run in individual sub-processes.

Gruntfile.js:

'task-looper' : {
  options : {
    onBeforeProcessingTasks : function(data) {
      grunt.log.write('Running tests with ' + data);
    },
    onTasksProcessedSuccessfully : function(data) {
      grunt.log.ok();
    },
    verbose : false
  },
  tests : {
    list : ['Option 1', 'Option 2'],
    tasks : [
      'serve',
      function(data) {
        return 'testrunner:' + (data === 'Option 1' ? 'a' : 'b');
      }
    ]
  }
}