.eleventy.js

const htmlmin = require('html-minifier')

module.exports = function(eleventyConfig) {
  eleventyConfig.addPassthroughCopy({ 'src/assets/js/service-worker.js': 'service-worker.js' })
  eleventyConfig.addPassthroughCopy("src/assets");
  eleventyConfig.addPassthroughCopy("src/favicon.ico");
  eleventyConfig.addPassthroughCopy("src/android-chrome-192x192.png");
  eleventyConfig.addPassthroughCopy("src/android-chrome-512x512.png");
  eleventyConfig.addPassthroughCopy("src/apple-touch-icon.png");
  eleventyConfig.addPassthroughCopy("src/browserconfig.xml");
  eleventyConfig.addPassthroughCopy("src/favicon-16x16.png");
  eleventyConfig.addPassthroughCopy("src/favicon-32x32.png");
  eleventyConfig.addPassthroughCopy("src/mstile-150x150.png");
  eleventyConfig.addPassthroughCopy("src/safari-pinned-tab.svg");
  eleventyConfig.addPassthroughCopy("src/site.webmanifest");

  eleventyConfig.addTransform("htmlmin", function(content, outputPath) {
    // Eleventy 1.0+: use this.inputPath and this.outputPath instead
    if( outputPath && outputPath.endsWith(".html") ) {
      let minified = htmlmin.minify(content, {
        useShortDoctype: true,
        removeComments: true,
        collapseWhitespace: true
      });
      return minified;
    }

    return content;
  })

  return {
    passthroughFileCopy: true,
    dir: {
      input: "src",
      output: "public"
    }
  };
};