code: function font() {
    return src([`${svgDir}/*.svg`])
      .pipe(
        iconfontCss({
          fontName: config.name,
          path: template,
          targetPath: '../src/index.less',
          normalize: true,
          firstGlyph: 0xf000,
          cssClass: fontName // this is a trick to pass fontName to template
        })
      )
      .pipe(
        iconfont({
          fontName,
          formats
        })
      )
      .pipe(dest(srcDir));
  }
docs: generate font from svg && build index.less