[WIP] Upgrade to Eleventy 3.0.0

Author: nex3

.eslintrc

@@ -13,4 +13,12 @@
     "sort-imports": ["error", {"ignoreDeclarationSort": true}],
     "etc/prefer-interface": ["error"],
   },
+  "overrides": [
+    {
+      "files": ["*.js"],
+      "rules": {
+        "@typescript-eslint/explicit-function-return-type": "off",
+      },
+    },
+  ],
 }

.prettierrc.js renamed to .prettierrc.cjs

@@ -1,3 +1,3 @@
-module.exports = {
+export default {
   presets: ['@babel/preset-typescript'],
 };

babel.config.js

@@ -1,25 +1,27 @@
 'use strict';
 
-const {EleventyRenderPlugin} = require('@11ty/eleventy');
-const {
+import {EleventyRenderPlugin} from '@11ty/eleventy';
+import {
   absoluteUrl,
   convertHtmlToAbsoluteUrls,
   dateToRfc3339,
   getNewestCollectionItemDate,
-} = require('@11ty/eleventy-plugin-rss');
-const syntaxHighlight = require('@11ty/eleventy-plugin-syntaxhighlight');
-const yaml = require('js-yaml');
+} from '@11ty/eleventy-plugin-rss';
+import syntaxHighlight from '@11ty/eleventy-plugin-syntaxhighlight';
+import * as yaml from 'js-yaml';
 
-const componentsPlugin =
-  require('./source/helpers/components/index.ts').default;
-const datesPlugin = require('./source/helpers/dates.ts').default;
-const {liquidEngine, markdownEngine} = require('./source/helpers/engines.ts');
-const pagesPlugin = require('./source/helpers/pages.ts').default;
-const typePlugin = require('./source/helpers/type.ts').default;
-const functionPlugin = require('./source/helpers/function.ts').default;
+import componentsPlugin from './source/helpers/components/index.ts';
+import datesPlugin from './source/helpers/dates.ts';
+import {liquidEngine, markdownEngine} from './source/helpers/engines.ts';
+import pagesPlugin from './source/helpers/pages.ts';
+import typePlugin from './source/helpers/type.ts';
+import functionPlugin from './source/helpers/function.ts';
 
-/** @param {import('@11ty/eleventy').UserConfig} eleventyConfig */
-module.exports = eleventyConfig => {
+/**
+ * @param {import('@11ty/eleventy').UserConfig} eleventyConfig
+ * @returns {void}
+ */
+export default function (eleventyConfig) {
   eleventyConfig.addPassthroughCopy('source/assets/dist');
   eleventyConfig.addPassthroughCopy('source/assets/img');
   eleventyConfig.addPassthroughCopy('source/favicon.ico');
@@ -35,10 +37,10 @@ module.exports = eleventyConfig => {
   eleventyConfig.setLibrary('liquid', liquidEngine);
   eleventyConfig.setLibrary('md', markdownEngine);
   eleventyConfig.addDataExtension('yml, yaml', contents => yaml.load(contents));
-  eleventyConfig.addDataExtension('ts', {
-    parser: filepath => require(filepath),
-    read: false,
-  });
+  // eleventyConfig.addDataExtension('ts', {
+  //   parser: filepath => import(filepath),
+  //   read: false,
+  // });
 
   // register filters and shortcodes
   eleventyConfig.addPlugin(componentsPlugin);
@@ -75,4 +77,4 @@ module.exports = eleventyConfig => {
       layouts: '_layouts',
     },
   };
-};
+}