Bundle task

bundle.config.json

    bundle: {
      // Files to bundle up that aren't css/js managed by release. Copied into
      // same directory structure
      files: ['*.html'],
      // Folders to bundle up that aren't managed by release. Copy files and
      // folders from src (key) to destination (value), relative to the
      // destination parameter.
      folders: {'assets/img':'assets/img', 'dist/release':''},
      destination: 'bundle'
    }

bundle.task.js

  // Copy files and folders into a new directory structure
  grunt.registerTask("bundle", "Bundle files and directories.", function(){
    // bail if release hasn't run
    grunt.task.requires('release');
    // TODO: ditch this when grunt v0.4 is released
    grunt.util = grunt.util || grunt.utils;

    var _ = grunt.util._;

    var options = _.defaults(grunt.config("bundle") || {}, {
      destination: 'bundle',
      files: ['*.html'],
      folders: {'dist': ''}
    });

    grunt.file.mkdir(options.destination);

    function recurse_expand(source, dest){
      var files = {};
      grunt.file.recurse(source, function(abspath, r, s, f){
        files[abspath] = abspath.replace(source, dest);
      });
      return files;
    }
    // Copy over (wild carded) files
    _.each(options.files, function(f){
      _.each(grunt.file.expand(f), function(source){
        var dest = options.destination + '/' + source;
        grunt.log.writeln('copy ' + source + ' to ' + dest);
        grunt.file.copy(source, dest);
      });
    });
    // Copy over (wild carded) directory contents
    _.each(options.folders, function(dest, origin, list){
      _.each(recurse_expand(origin, dest), function(newpath, path, l){
        var destination = options.destination + '/' + newpath;
        destination = destination.replace('//', '/');
        grunt.log.writeln('copy ' + path + ' to ' + destination);
        grunt.file.copy(path, destination);
      });
    });
  });

package.task.js

  // Build a release (lint, test, minify css/js) then copy resulting
  // files and all other assets into a bundle directory
  grunt.registerTask("package", "release bundle");