Gruntfile.js

module.exports = function (grunt) {

  'use strict';

  // Load plugins. 
  grunt.loadNpmTasks('grunt-contrib-connect');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-contrib-concat');
  grunt.loadNpmTasks('grunt-requirejs');
  grunt.loadNpmTasks('grunt-closurecompiler');
  grunt.loadNpmTasks('grunt-contrib-jasmine');

  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),

    requirejs: {
      compile: {
        options: {
          name: 'mei2vf/Interface',
          baseUrl: "src",
          mainConfigFile: "src/config.js",
          out: 'dist/<%= pkg.name %>.js',
          wrap: {
            start: "(function($, VF, undefined) {",
            end: "})(jQuery, Vex.Flow);"
          },
          exclude: [
            'jquery',
            'vex'
          ],

          optimize: "none",

          done: function (done, output) {
            var duplicates = require('rjs-build-analysis').duplicates(output);
            if (duplicates.length > 0) {
              grunt.log.subhead('Duplicates found in requirejs build:');
              grunt.log.warn(duplicates);
              done(new Error('r.js built duplicate modules, please check the excludes option.'));
            }
            done();
          },

          // based on jQuery's convert function, see [https://github.com/jquery/jquery/blob/master/build/tasks/build.js]
          onBuildWrite: function (name, path, contents) {
            var rdefineEnd = /\}\);[^}\w]*$/;
            var amdName;
            // Convert var modules
            if (/.\/var\//.test(path)) {
              contents = contents
                .replace(/define\([\w\W]*?return/, "var " + (/var\/([\w-]+)/.exec(name)[1]) + " =")
                .replace(rdefineEnd, "");

            } else {

              // Ignore jQuery's exports (the only necessary one)
              if (name !== "jquery") {
                contents = contents
                  .replace(/\s*return\s+[^\}]+(\}\);[^\w\}]*)$/, "$1")
                  // Multiple exports
                  .replace(/\s*exports\.\w+\s*=\s*\w+;/g, "");
              }

              // Remove define wrappers, closure ends, and empty declarations
              contents = contents
                .replace(/define\([^{]*?{/, "")
                .replace(rdefineEnd, "");

              // Remove anything wrapped with
              // /* ExcludeStart */ /* ExcludeEnd */
              // or a single line directly after a // BuildExclude comment
              contents = contents
                .replace(/\/\*\s*ExcludeStart\s*\*\/[\w\W]*?\/\*\s*ExcludeEnd\s*\*\//ig, "")
                .replace(/\/\/\s*BuildExclude\n\r?[\w\W]*?\n\r?/ig, "");

              // Remove empty definitions
              contents = contents
                .replace(/define\(\[[^\]]+\]\)[\W\n]+$/, "");
            }
            return contents;
          }
        }
      }
    },

    closurecompiler: {
      minify: {
        files: {
          'dist/<%= pkg.name %>.min.js': ['dist/<%= pkg.name %>.js']
        },
        options: {
          "compilation_level": "SIMPLE_OPTIMIZATIONS",
          "max_processes": 5
        }
      }
    },

    connect: {
      server: {
        options: {
          port: 8000
        }
      }
    },

    watch: {
      scripts: {
        files: ['src/*.js'],
        tasks: ['compile'],
        options: {
          livereload: true
        }
      }
    },

    jasmine: {
      testdev: {
        src: 'src/*/*.js',
        options: {
          specs: 'tests/spec/*/*.js',
          helpers: ['tests/loadXMLDoc.js', 'tests/phantomPolyFill.js'],
          host: 'http://127.0.0.1:8000/',
          template: require('grunt-template-jasmine-requirejs'),
          options: {
            keepRunner: true
          },
          templateOptions: {
            requireConfig: {
              baseUrl: 'src/',
              paths: {
                'tests': '../tests',
                'jquery': '../bower_components/jquery/dist/jquery.min',
                'vex': '../bower_components/vexflow/releases/vexflow-min',
                'vexflow': '../src/mei2vf/vexflow',
                'common': '../src/common',
                'mei2vf': '../src/mei2vf',
                'meilib': '../src/meilib'
              },
              shim: {
                'vex': {
                  exports: 'Vex'
                }
              }
            }
          }
        }
      }
    }

  });


  // Tasks.
  grunt.registerTask('run', ['connect', 'watch']);

  // unit and rendering tests of requirejs code in phantomJS
  grunt.registerTask('test', ['connect', 'jasmine:testdev']);

  grunt.registerTask('compile', ['requirejs:compile']);
  grunt.registerTask('minify', ['closurecompiler:minify']);

  grunt.registerTask('build', ['compile', 'minify']);

  grunt.registerTask('dist', ['test', 'compile', 'minify']);

  grunt.registerTask('default', ['dist']);

};