Create crlfchecker module and use it in make.js.

Provide names of the files that contain crlf in the output.
Exit(1) is used instead of throw.

external/crlfchecker/crlfchecker.js

@@ -0,0 +1,25 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+function checkIfCrlfIsPresent(files) {
+  var failed = [];
+
+  (ls(files)).forEach(function checkCrlf(file) {
+    if ((cat(file)).match(/.*\r.*/)) {
+      failed.push(file);
+    }
+  });
+
+  if (failed.length) {
+    var errorMessage =
+      'Please remove carriage return\'s from\n' + failed.join('\n') + '\n' +
+      'Also check your setting for: git config core.autocrlf.';
+
+    echo();
+    echo(errorMessage);
+    exit(1);
+  }
+}
+
+exports.checkIfCrlfIsPresent = checkIfCrlfIsPresent;
+

make.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 require('./external/shelljs/make');
 var builder = require('./external/builder/builder.js');
+var crlfchecker = require('./external/crlfchecker/crlfchecker.js');
 
 var ROOT_DIR = __dirname + '/', // absolute path to project's root
     BUILD_DIR = 'build/',
@@ -27,32 +28,6 @@ var DEFINES = {
   CHROME: false
 };
 
-//
-// Helper functions
-//
-function checkIfCarriageReturnsArePresent(string, throwOnError) {
-  if (string.match(/.*\r.*/)) {
-    var errorMessage =
-      'Carriage Return\'s should not be present. Please remove them.\n' +
-      'Also check your setting for: git config core.autocrlf.';
-
-    if (throwOnError) {
-      throw(errorMessage);
-    } else {
-      echo();
-      echo(errorMessage);
-    }
-  }
-}
-
-function throwIfCarriageReturnsArePresent(string) {
-  checkIfCarriageReturnsArePresent(string, true);
-}
-
-function warnIfCarriageReturnsArePresent(string) {
-  checkIfCarriageReturnsArePresent(string, false);
-}
-
 //
 // make all
 //
@@ -245,7 +220,7 @@ target.bundle = function() {
         {silent: true}).output.replace('\n', '');
 
   // Handle only src/*.js for now.
-  throwIfCarriageReturnsArePresent(cat('*.js'));
+  crlfchecker.checkIfCrlfIsPresent(['*.js']);
 
   // This just preprocesses the empty pdf.js file, we don't actually want to
   // preprocess everything yet since other build targets use this file.
@@ -711,7 +686,7 @@ target.lint = function() {
   exec('gjslint --nojsdoc ' + LINT_FILES.join(' '));
 
   // Handle only src/*.js for now.
-  warnIfCarriageReturnsArePresent(cat('src/*.js'));
+  crlfchecker.checkIfCrlfIsPresent(['src/*.js']);
 };
 
 //