code: function buildPartial (m) {
    var css = '@import "' + m + '";'
  
    postcss([ postcssImport ])
      .process(css).then(function (result) {
        var scss = cssScss(result.css)
        var shortname = m.replace(modulePrefixRegex, '')
        var filename = '_' + shortname + '.scss'
  
        fs.writeFileSync(path.join('scss', filename), scss)
      })
  }
docs: Build partials