.eleventy.js

const inclusiveLangPlugin = require("@11ty/eleventy-plugin-inclusive-language");
const cacheBuster = require("@mightyplow/eleventy-plugin-cache-buster");
const pluginSitemap = require("@quasibit/eleventy-plugin-sitemap");
const { minify: htmlMinify } = require("html-minifier-terser");
const { minify } = require("terser");
const siteSettings = require("./src/globals/site.json");

const dateFormatter = Intl.DateTimeFormat("en-US", {
  year: "numeric",
  month: "long",
  day: "numeric",
  weekday: "long",
  hour: "numeric",
  minute: "numeric",
  timeZoneName: "short",
});

module.exports = function (eleventyConfig) {
  const runMode = process.env.ELEVENTY_RUN_MODE;
  const isProduction = runMode === "build";

  eleventyConfig.addPlugin(pluginSitemap, {
    sitemap: {
      hostname: siteSettings.url,
    },
  });

  eleventyConfig.addPassthroughCopy({ public: "./" });

  eleventyConfig.addShortcode("year", function () {
    return new Date().getFullYear().toString();
  });

  eleventyConfig.addFilter("formatDateTime", function (date) {
    return dateFormatter.format(date);
  });

  eleventyConfig.addPlugin(inclusiveLangPlugin);

  if (isProduction) {
    eleventyConfig.addPlugin(cacheBuster({ outputDirectory: "dist" }));

    eleventyConfig.addTransform("htmlmin", function (content, outputPath) {
      if (outputPath && outputPath.endsWith(".html")) {
        return htmlMinify(content, {
          useShortDoctype: true,
          removeComments: true,
          collapseWhitespace: true,
        });
      }

      return content;
    });
  }

  eleventyConfig.addAsyncFilter("jsmin", async function (code) {
    if (isProduction) {
      try {
        const minified = await minify(code);
        return minified.code;
      } catch (err) {
        console.error("Terser error: ", err);
        // Fail gracefully.
        return code;
      }
    } else {
      return code;
    }
  });

  return {
    pathPrefix: siteSettings.baseUrl,
    dir: {
      input: "src",
      output: "dist",
      includes: "includes",
      layouts: "includes/layouts",
      data: "globals",
    },
  };
};