Replace htmllint helper with htmllint lib. Still depends on grunt as …

…grunt.utils.spawn is pretty convenient

lib/htmllint.js

@@ -0,0 +1,17 @@
+module.exports = function(grunt, files, done) {
+  var jar = __dirname + '/../vnu.jar';
+  grunt.utils.spawn({
+    cmd: 'java',
+    args: ['-Dnu.validator.client.quiet=yes',  '-jar', jar].concat(files)
+  }, function(error, output) {
+    if (error) {
+      done(error);
+      return;
+    }
+    var result = [];
+    if (output.stdout) {
+      result = output.stdout.split('\n');
+    }
+    done(null, result);
+  });
+};

tasks/html.js

@@ -6,19 +6,15 @@
  * Licensed under the MIT license.
  */
 
-module.exports = function(grunt) {
-
-  // Please see the grunt documentation for more information regarding task and
-  // helper creation: https://github.com/cowboy/grunt/blob/master/docs/toc.md
+var htmllint = require('../lib/htmllint');
 
-  // ==========================================================================
-  // TASKS
-  // ==========================================================================
+module.exports = function(grunt) {
 
   grunt.registerMultiTask('htmllint', 'Validate html files', function() {
     var done = this.async(),
       files = grunt.file.expand(this.file.src);
-    grunt.helper('htmllint', files, function(error, result) {
+
+    htmllint(grunt, files, function(error, result) {
       if (error) {
         grunt.log.error(error);
         done(false);
@@ -34,26 +30,4 @@ module.exports = function(grunt) {
     });
   });
 
-  // ==========================================================================
-  // HELPERS
-  // ==========================================================================
-
-  grunt.registerHelper('htmllint', function(files, done) {
-    var jar = __dirname + '/../vnu.jar';
-    grunt.utils.spawn({
-      cmd: 'java',
-      args: ['-Dnu.validator.client.quiet=yes',  '-jar', jar].concat(files)
-    }, function(error, output) {
-      if (error) {
-        done(error);
-        return;
-      }
-      var result = [];
-      if (output.stdout) {
-        result = output.stdout.split('\n');
-      }
-      done(null, result);
-    });
-  });
-
 };

test/html_test.js

@@ -1,14 +1,11 @@
-var grunt = require('grunt');
+var grunt = require('grunt'),
+  htmllint = require('../lib/htmllint');
 
 exports['htmllint'] = {
-  setUp: function(done) {
-    // setup here
-    done();
-  },
   'helper': function(test) {
     test.expect(1);
     // tests here
-    grunt.helper('htmllint', ['test/valid.html', 'test/invalid.html'], function(error, result) {
+    htmllint(grunt, ['test/valid.html', 'test/invalid.html'], function(error, result) {
       if (error) {
         throw error;
       }