diff --git a/.gitignore b/.gitignore
index a1b39709a..7904c7cc3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+built/
 node_modules/
 selenium/
 testapp/inbrowsertest/
diff --git a/.npmignore b/.npmignore
index 93e651f1f..a7bb2d306 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,5 +1,6 @@
 debugging/
 docs/
+lib/
 scripts/
 spec/
 stress/
diff --git a/bin/protractor b/bin/protractor
index 0bf1f145a..bb19c4124 100755
--- a/bin/protractor
+++ b/bin/protractor
@@ -2,4 +2,4 @@
 
 process.env.NODE_ENV = process.env.NODE_ENV || 'test';
 
-require('../lib/cli.js');
+require('../built/cli.js');
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 000000000..844ac5adf
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,39 @@
+'use strict';
+
+var gulp = require('gulp');
+var runSequence = require('run-sequence');
+var spawnSync = require('child_process').spawnSync;
+
+gulp.task('built:copy', function() {
+  var srcFiles = ['lib/**/*'];
+  var dist = 'built/';
+  return gulp.src(srcFiles).pipe(gulp.dest(dist));
+});
+
+gulp.task('webdriver:update', function() {
+  var child = spawnSync('bin/webdriver-manager', ['update']);
+  if (child.stdout != null) {
+    console.log(child.stdout.toString());
+  }
+  if (child.status !== 0) {
+    throw new Error('webdriver-manager update: child error');
+  }
+});
+
+gulp.task('jslint', function() {
+  var child = spawnSync('./node_modules/.bin/jshint', ['lib','spec', 'scripts']);
+  if (child != null && child.stdout != null ) {
+    console.log(child.stdout.toString());
+  }
+  if (child.status !== 0) {
+    throw new Error('jslint: child error');
+  }
+});
+
+gulp.task('pretest', function() {
+  runSequence(
+    ['webdriver:update', 'jslint'],
+    'built:copy'
+  );
+});
+gulp.task('prepublish', ['built:copy']);
diff --git a/package.json b/package.json
index b16fa4e4c..fe9339ffe 100644
--- a/package.json
+++ b/package.json
@@ -27,11 +27,13 @@
     "expect.js": "~0.3.1",
     "chai": "~3.4.1",
     "chai-as-promised": "~5.2.0",
+    "gulp": "^3.9.1",
     "jshint": "2.9.1",
     "mocha": "2.3.4",
     "express": "~4.13.3",
     "body-parser": "1.14.2",
     "rimraf": "~2.5.0",
+    "run-sequence": "^1.1.5",
     "lodash": "^2.4.1",
     "marked": "^0.3.3"
   },
@@ -45,7 +47,8 @@
   },
   "main": "lib/protractor.js",
   "scripts": {
-    "pretest": "./scripts/pretest.sh",
+    "prepublish": "gulp prepublish",
+    "pretest": "gulp pretest",
     "test": "node scripts/test.js",
     "start": "node testapp/scripts/web-server.js"
   },
diff --git a/scripts/interactive_tests/interactive_test.js b/scripts/interactive_tests/interactive_test.js
index 2aac1ef81..a4342f764 100644
--- a/scripts/interactive_tests/interactive_test.js
+++ b/scripts/interactive_tests/interactive_test.js
@@ -1,7 +1,7 @@
 var env = require('../../spec/environment.js');
 var InteractiveTest = require('./interactive_test_util').InteractiveTest;
 var port = env.interactiveTestPort;
-var test = new InteractiveTest('node lib/cli.js --elementExplorer true', port);
+var test = new InteractiveTest('node built/cli.js --elementExplorer true', port);
 
 // Check state persists.
 test.addCommandExpectation('var x = 3');
diff --git a/scripts/interactive_tests/with_base_url.js b/scripts/interactive_tests/with_base_url.js
index 3a7186b2c..cd82f7b62 100644
--- a/scripts/interactive_tests/with_base_url.js
+++ b/scripts/interactive_tests/with_base_url.js
@@ -2,7 +2,7 @@ var env = require('../../spec/environment.js');
 var InteractiveTest = require('./interactive_test_util').InteractiveTest;
 var port = env.interactiveTestPort;
 var test = new InteractiveTest(
-    'node lib/cli.js --baseUrl http://localhost:' + env.webServerDefaultPort + 
+    'node built/cli.js --baseUrl http://localhost:' + env.webServerDefaultPort + 
     '/ng1 --elementExplorer true', port);
 
 // Check we automatically go to to baseUrl.
diff --git a/scripts/pretest.sh b/scripts/pretest.sh
deleted file mode 100755
index f09d412ab..000000000
--- a/scripts/pretest.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-# When running `npm test`, this script is intended to run during pretest step.
-
-bin/webdriver-manager update   # updates the local webdriver manager
-node_modules/.bin/jshint lib spec scripts
diff --git a/scripts/test.js b/scripts/test.js
index 8858fa823..9558c107e 100755
--- a/scripts/test.js
+++ b/scripts/test.js
@@ -3,35 +3,35 @@
 var Executor = require('./test/test_util').Executor;
 
 var passingTests = [
-  'node lib/cli.js spec/basicConf.js',
-  'node lib/cli.js spec/multiConf.js',
-  'node lib/cli.js spec/altRootConf.js',
-  'node lib/cli.js spec/onCleanUpAsyncReturnValueConf.js',
-  'node lib/cli.js spec/onCleanUpNoReturnValueConf.js',
-  'node lib/cli.js spec/onCleanUpSyncReturnValueConf.js',
-  'node lib/cli.js spec/onPrepareConf.js',
-  'node lib/cli.js spec/onPrepareFileConf.js',
-  'node lib/cli.js spec/onPreparePromiseConf.js',
-  'node lib/cli.js spec/onPreparePromiseFileConf.js',
-  'node lib/cli.js spec/mochaConf.js',
-  'node lib/cli.js spec/withLoginConf.js',
-  'node lib/cli.js spec/suitesConf.js --suite okmany',
-  'node lib/cli.js spec/suitesConf.js --suite okspec',
-  'node lib/cli.js spec/suitesConf.js --suite okmany,okspec',
-  'node lib/cli.js spec/plugins/smokeConf.js',
-  'node lib/cli.js spec/plugins/multiPluginConf.js',
-  'node lib/cli.js spec/plugins/jasminePostTestConf.js',
-  'node lib/cli.js spec/plugins/mochaPostTestConf.js',
-  'node lib/cli.js spec/plugins/browserGetSyncedConf.js',
-  'node lib/cli.js spec/plugins/browserGetUnsyncedConf.js',
-  'node lib/cli.js spec/plugins/waitForAngularConf.js',
-  'node lib/cli.js spec/interactionConf.js',
-  'node lib/cli.js spec/directConnectConf.js',
-  'node lib/cli.js spec/restartBrowserBetweenTestsConf.js',
-  'node lib/cli.js spec/getCapabilitiesConf.js',
-  'node lib/cli.js spec/controlLockConf.js',
-  'node lib/cli.js spec/customFramework.js',
-  'node lib/cli.js spec/angular2Conf.js',
+  'node built/cli.js spec/basicConf.js',
+  'node built/cli.js spec/multiConf.js',
+  'node built/cli.js spec/altRootConf.js',
+  'node built/cli.js spec/onCleanUpAsyncReturnValueConf.js',
+  'node built/cli.js spec/onCleanUpNoReturnValueConf.js',
+  'node built/cli.js spec/onCleanUpSyncReturnValueConf.js',
+  'node built/cli.js spec/onPrepareConf.js',
+  'node built/cli.js spec/onPrepareFileConf.js',
+  'node built/cli.js spec/onPreparePromiseConf.js',
+  'node built/cli.js spec/onPreparePromiseFileConf.js',
+  'node built/cli.js spec/mochaConf.js',
+  'node built/cli.js spec/withLoginConf.js',
+  'node built/cli.js spec/suitesConf.js --suite okmany',
+  'node built/cli.js spec/suitesConf.js --suite okspec',
+  'node built/cli.js spec/suitesConf.js --suite okmany,okspec',
+  'node built/cli.js spec/plugins/smokeConf.js',
+  'node built/cli.js spec/plugins/multiPluginConf.js',
+  'node built/cli.js spec/plugins/jasminePostTestConf.js',
+  'node built/cli.js spec/plugins/mochaPostTestConf.js',
+  'node built/cli.js spec/plugins/browserGetSyncedConf.js',
+  'node built/cli.js spec/plugins/browserGetUnsyncedConf.js',
+  'node built/cli.js spec/plugins/waitForAngularConf.js',
+  'node built/cli.js spec/interactionConf.js',
+  'node built/cli.js spec/directConnectConf.js',
+  'node built/cli.js spec/restartBrowserBetweenTestsConf.js',
+  'node built/cli.js spec/getCapabilitiesConf.js',
+  'node built/cli.js spec/controlLockConf.js',
+  'node built/cli.js spec/customFramework.js',
+  'node built/cli.js spec/angular2Conf.js',
   'node scripts/attachSession.js',
   'node scripts/interactive_tests/interactive_test.js',
   'node scripts/interactive_tests/with_base_url.js',
@@ -51,14 +51,14 @@ passingTests.forEach(function(passing_test) {
  *************************/
 
 // assert stacktrace shows line of failure
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/singleFailureConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/singleFailureConf.js')
     .expectExitCode(1)
     .expectErrors({
       stackTrace: 'single_failure_spec1.js:5:32'
     });
 
 // assert timeout works
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/timeoutConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/timeoutConf.js')
     .expectExitCode(1)
     .expectErrors({
       message: 'Timeout - Async callback was not invoked within timeout ' +
@@ -66,13 +66,13 @@ executor.addCommandlineTest('node lib/cli.js spec/errorTest/timeoutConf.js')
     })
     .expectTestDuration(0, 100);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/afterLaunchChangesExitCodeConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/afterLaunchChangesExitCodeConf.js')
     .expectExitCode(11)
     .expectErrors({
       message: 'Expected \'Hiya\' to equal \'INTENTIONALLY INCORRECT\'.'
     });
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/multiFailureConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/multiFailureConf.js')
     .expectExitCode(1)
     .expectErrors([{
       message: 'Expected \'Hiya\' to equal \'INTENTIONALLY INCORRECT\'.',
@@ -82,7 +82,7 @@ executor.addCommandlineTest('node lib/cli.js spec/errorTest/multiFailureConf.js'
       stacktrace: 'single_failure_spec2.js:5:32'
     }]);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/shardedFailureConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/shardedFailureConf.js')
     .expectExitCode(1)
     .expectErrors([{
       message: 'Expected \'Hiya\' to equal \'INTENTIONALLY INCORRECT\'.',
@@ -92,14 +92,14 @@ executor.addCommandlineTest('node lib/cli.js spec/errorTest/shardedFailureConf.j
       stacktrace: 'single_failure_spec2.js:5:32'
     }]);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/mochaFailureConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/mochaFailureConf.js')
     .expectExitCode(1)
     .expectErrors([{
       message: 'expected \'My AngularJS App\' to equal \'INTENTIONALLY INCORRECT\'',
       stacktrace: 'mocha_failure_spec.js:11:20'
     }]);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/pluginsFailingConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/pluginsFailingConf.js')
     .expectExitCode(1)
     .expectErrors([
       {message: 'Expected true to be false'},
@@ -109,7 +109,7 @@ executor.addCommandlineTest('node lib/cli.js spec/errorTest/pluginsFailingConf.j
       {message: 'from teardown'}
     ]);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/slowHttpAndTimeoutConf.js')
+executor.addCommandlineTest('node built/cli.js spec/errorTest/slowHttpAndTimeoutConf.js')
     .expectExitCode(1)
     .expectErrors([
       {message: 'The following tasks were pending[\\s\\S]*\\$http: slowcall'},
@@ -119,7 +119,7 @@ executor.addCommandlineTest('node lib/cli.js spec/errorTest/slowHttpAndTimeoutCo
                 '*}'}
     ]);
 
-executor.addCommandlineTest('node lib/cli.js spec/errorTest/slowHttpAndTimeoutConf.js ' +
+executor.addCommandlineTest('node built/cli.js spec/errorTest/slowHttpAndTimeoutConf.js ' +
                             '--untrackOutstandingTimeouts true')
     .expectExitCode(1)
     .expectErrors([