runSubset = function (subset) {
    return !process.env.TWBS_TEST || process.env.TWBS_TEST === subset;
  }
/*.html'
        ]
      }
    },

    pug: {
      options: {
        pretty: true,
        data: getLessVarsData
      },
      customizerVars: {
        src: 'docs/_pug/customizer-variables.pug',
        dest: 'docs/_includes/customizer-variables.html'
      },
      customizerNav: {
        src: 'docs/_pug/customizer-nav.pug',
        dest: 'docs/_includes/nav/customize.html'
      }
    },

    htmllint: {
      options: {
        ignore: [
          'Attribute "autocomplete" not allowed on element "button" at this point.',
          'Attribute "autocomplete" is only allowed when the input type is "color", "date", "datetime", "datetime-local", "email", "hidden", "month", "number", "password", "range", "search", "tel", "text", "time", "url", or "week".',
          'Element "img" is missing required attribute "src".'
        ]
      },
      src: '_gh_pages/*