NickHeiner

// index.js
function myTask(args) {
  if (somethingBadHappened()) {
    throw new Error('Too many cooks will spoil the broth.');
  }
}

// tasks/task.js
module.exports = function(grunt) {
  // Sync version

NickHeiner

// index.js
function myTask(rawArgs) {
  var args = fillInDefaults(rawArgs, {
      log: console.log
  });
}

// tasks/task.js
module.exports = function(grunt) {
  grunt.registerMultiTask('my-task', function() {

NickHeiner

// index.js
function myTask(args) {
  // do work
}

// tasks/task.js
module.exports = function(grunt) {
  grunt.registerMultiTask('my-task', function() {
    var myTask = require('../');
    var options = this.options();

NickHeiner

grunt.registerTask('my-task', function() {
  var util = require('util'),
      done = this.async();
  
  doAsyncWork().then(done).fail(function(err) {
      done(util.isError(err) ? err : new Error(err));
  });
});

NickHeiner

// How it is
grunt.registerTask('my-async-task', function() {
  var done = this.async();
  doAsyncWork().then(done).fail(done);
});

// How it should be
grunt.registerTask('my-async-task', function() {
  return doAsyncWork();
});

NickHeiner

grunt.registerTask(‘task-a’, function() {
  var result = doStuff(),
      taskBFn = require('task-b');
      
  taskBFn({
    runtimeGenerated: arbitraryConfig();
  }).then(function() {
    doMoreStuff(result);
  })
});

NickHeiner

grunt.registerTask(‘task-a’, function() {
  var uuid = require('uuid'),
      result = doStuff(),
      postTaskName = 'after-task-b-' + uuid.v4();
      
  grunt.registerTask(postTaskName, function() {
    doMoreStuff(result);
  });
  
  grunt.config(postTaskName, {

NickHeiner

grunt.registerTask('unit', 'Run unit tests for your js.', [
    'set-async-config:angular-unit-make-tests',
    'browserify:angular-module-tests',
    'set-async-config:angular-unit',
    'x-web-build-js:angular-module-lib',
    'karma:once',
    'set-async-config:angular-unit-min',
    'x-web-build-js:angular-module-lib-min',
    'karma:once',
]);

NickHeiner

q.all(_.map(this.options(), function(configPromiseFn, configKey) {
      var configPromise = configPromiseFn();

      return q(configPromise).then(function(configVal) {
          grunt.verbose.ok('set-async-config: Setting key "' + configKey + '" to "' + configVal + '"');
          grunt.config(configKey, configVal);
      });
  }));

NickHeiner

// In the grunt config object
'set-async-config': {
  'build-something': {
      options: {
          'key.into.grunt.config': function getAsyncValue() {
              return getTmpDir('-tmp-dir-prefix');
          }
      }
  }
}