chore(npm): use require.resolve when possible to avoid hard coded module paths

Author: jdalton

docs/app/e2e/app.scenario.js

@@ -1,6 +1,6 @@
 'use strict';
 
-var webdriver = require('protractor/node_modules/selenium-webdriver');
+var webdriver = require('selenium-webdriver');
 
 describe('docs.angularjs.org', function() {
 

karma-shared.conf.js

@@ -170,8 +170,8 @@ module.exports = function(config, specificOptions) {
     '/someSanitizedUrl',
     '/{{testUrl}}'
   ];
-  var log4js = require('./node_modules/karma/node_modules/log4js');
-  var layouts = require('./node_modules/karma/node_modules/log4js/lib/layouts');
+  var log4js = require('log4js');
+  var layouts = require('log4js/lib/layouts');
   var originalConfigure = log4js.configure;
   log4js.configure = function(log4jsConfig) {
     var consoleAppender = log4jsConfig.appenders.shift();

lib/grunt/plugins.js

@@ -39,7 +39,7 @@ module.exports = function(grunt) {
 
 
   grunt.registerTask('docs', 'create angular docs', function() {
-    var gruntProc = shelljs.exec('"node_modules/.bin/gulp" --gulpfile docs/gulpfile.js');
+    var gruntProc = shelljs.exec('node "' + require.resolve('gulp/bin/gulp') + '" --gulpfile docs/gulpfile.js');
     if (gruntProc.code !== 0) {
       throw new Error('doc generation failed');
     }

lib/grunt/utils.js

@@ -15,7 +15,7 @@ module.exports = {
     var reporters = grunt.option('reporters');
     var noColor = grunt.option('no-colors');
     var port = grunt.option('port');
-    var p = spawn('node', ['node_modules/karma/bin/karma', 'start', config,
+    var p = spawn('node', [require.resolve('karma/bin/karma'), 'start', config,
       singleRun ? '--single-run=true' : '',
       reporters ? '--reporters=' + reporters : '',
       browsers ? '--browsers=' + browsers : '',
@@ -38,7 +38,7 @@ module.exports = {
       done();
       return;
     }
-    var p = spawn('node', ['node_modules/protractor/bin/webdriver-manager', 'update']);
+    var p = spawn('node', [require.resolve('protractor/bin/webdriver-manager'), 'update']);
     p.stdout.pipe(process.stdout);
     p.stderr.pipe(process.stderr);
     p.on('exit', function(code) {
@@ -54,7 +54,7 @@ module.exports = {
     var sauceBuild = grunt.option('capabilities.build');
     var browser = grunt.option('browser');
     var specs = grunt.option('specs');
-    var args = ['node_modules/protractor/bin/protractor', config];
+    var args = [require.resolve('protractor/bin/protractor'), config];
     if (sauceUser) args.push('--sauceUser=' + sauceUser);
     if (sauceKey) args.push('--sauceKey=' + sauceKey);
     if (tunnelIdentifier) args.push('--capabilities.tunnel-identifier=' + tunnelIdentifier);