Gruntfile.js

module.exports = function(grunt) {
  require('lineman').init(grunt);

  grunt.initConfig({
    // stuff
  });

  // Default task.
  grunt.registerTask('default', ['run']);
};

lineman.js

exports.init = function(grunt) {
  grunt.registerTask('run', 'runs the development server from /generated and watches files for updates', ['common', 'dev']);
  grunt.registerTask('build', 'compiles all assets into a production ready form in the /dist folder', ['common', 'dist']);
  grunt.registerTask('spec', 'runs specs in Chrome, override in config/spec.json', ['spec']);
  grunt.registerTask('spec-ci', 'runs specs in a single pass using PhantomJS and outputs in TAP13 format, override in config/spec.json', ['common', 'spec-ci']);
  grunt.registerTask('clean', 'cleans out /generated and /dist folders', ['clean']);
  grunt.registerTask('new', 'generates a new lineman project in the specified folder', function(project_name) {
    // stuff here
  });
};