fix(build): Defer require of parent node modules until they're fetched #2184

build/Gruntfile.coffee

@@ -184,6 +184,9 @@ module.exports = (grunt) ->
       ext: '.js'
 
   for folder in ['node_modules', 'internal_packages']
+    if not fs.existsSync(folder)
+      console.log("Ignoring #{folder}, which is missing.")
+      continue
     for child in fs.readdirSync(folder) when child isnt '.bin'
       directory = path.join(folder, child)
       metadataPath = path.join(directory, 'package.json')

build/tasks/babel-task.js

@@ -1,12 +1,10 @@
 // Copied from https://github.com/babel/grunt-babel to ensure we always
 // use the `babel-core` defined in our own package.json as opposed to the
 // grunt-babel dependency's
-
-var path = require('path');
-var babel = require('babel-core');
-
 module.exports = function (grunt) {
   grunt.registerMultiTask('babel', 'Use next generation JavaScript, today', function () {
+    var path = require('path');
+    var babel = require('babel-core');
     var options = this.options();
 
     this.files.forEach(function (el) {

build/tasks/generate-module-cache-task.coffee

@@ -1,9 +1,9 @@
 path = require 'path'
 fs = require 'fs-plus'
-ModuleCache = require '../../src/module-cache'
 
 module.exports = (grunt) ->
   grunt.registerTask 'generate-module-cache', 'Generate a module cache for all core modules and packages', ->
+    ModuleCache = require '../../src/module-cache'
     appDir = grunt.config.get('nylasGruntConfig.appDir')
 
     {packageDependencies} = grunt.file.readJSON('package.json')

build/tasks/prebuild-less-task.coffee

@@ -1,10 +1,9 @@
 path = require 'path'
 fs = require 'fs'
 
-LessCache = require 'less-cache'
-
 module.exports = (grunt) ->
   grunt.registerMultiTask 'prebuild-less', 'Prebuild cached of compiled LESS files', ->
+    LessCache = require 'less-cache'
     prebuiltConfigurations = [
       ['ui-light', 'ui-dark']
     ]