2024-10-17 12:28:18 +08:00
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// Import the necessary libraries and plugins using ESM syntax
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import fs from "node:fs/promises";
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import { DateTime } from "luxon";
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import { eleventyImageTransformPlugin } from "@11ty/eleventy-img";
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import { minify } from "html-minifier-terser";
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import PurgeCss from "eleventy-plugin-purgecss";
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import CleanCSS from "clean-css";
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import markdownIt from "markdown-it";
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import markdownItAttrs from "markdown-it-attrs";
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import markdownItAnchor from "markdown-it-anchor";
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import markdownItBracketedSpans from "markdown-it-bracketed-spans";
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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export default function (eleventyConfig) {
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//
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// Configure Eleventy to not use .gitignore files
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2024-10-16 12:39:17 +08:00
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eleventyConfig.setUseGitIgnore(false);
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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// Set the directories for input, includes, data, and output
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eleventyConfig.dir = {
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input: "src",
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includes: "_includes",
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data: "_data",
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output: "site",
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};
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// Set Markdown options
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2024-10-16 12:39:17 +08:00
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const mdOptions = {
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2024-10-17 12:28:18 +08:00
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html: true, // Allow HTML tags in Markdown files
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breaks: true, // Convert line breaks to HTML <br> tags
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linkify: true, // Automatically convert URLs into links
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2024-10-16 12:39:17 +08:00
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};
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2023-11-05 23:05:38 +08:00
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2024-10-16 12:39:17 +08:00
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const markdownItAnchorOptions = {
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level: 2, // minimum level header -- anchors will only be applied to h2 level headers and below but not h1
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permalink: true,
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};
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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// Create a Markdown library with custom plugins
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2024-10-16 12:39:17 +08:00
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const markdownLib = markdownIt(mdOptions)
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.use(markdownItAnchor, markdownItAnchorOptions)
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.use(markdownItAttrs)
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2024-10-17 12:28:18 +08:00
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.use(markdownItBracketedSpans) // Enable bracketed spans
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2024-10-16 12:39:17 +08:00
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.disable("code");
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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// Set the Markdown library to use with Eleventy
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2024-10-16 12:39:17 +08:00
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eleventyConfig.setLibrary("md", markdownLib);
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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// Define the template formats that Eleventy will process
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2024-10-16 12:39:17 +08:00
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eleventyConfig.setTemplateFormats([
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"md",
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"webmanifest",
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"xml",
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"ico",
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"avif",
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"webp",
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"webm",
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"svg",
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"png",
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"jpg",
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"jpeg",
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"txt",
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"woff",
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"woff2",
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"css",
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"pdf",
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]);
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2023-12-16 12:20:33 +08:00
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2024-10-17 12:28:18 +08:00
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// Register a filter to output a human-readable post date
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2024-10-16 12:39:17 +08:00
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eleventyConfig.addFilter("readablePostDate", (dateObj) => {
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return DateTime.fromJSDate(dateObj, {
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zone: "Asia/Singapore",
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})
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.setLocale("en-GB")
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.toLocaleString({ day: "numeric", month: "short", year: "numeric" });
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});
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2023-11-05 23:05:38 +08:00
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2024-10-17 12:28:18 +08:00
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// Register a filter to output post date in ISO format
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2024-10-16 12:39:17 +08:00
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eleventyConfig.addFilter("postDate", (dateObj) => {
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return DateTime.fromJSDate(dateObj, {
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zone: "Asia/Singapore",
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})
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.setLocale("en-GB")
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.toISODate();
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});
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2023-12-16 12:20:33 +08:00
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2024-10-17 12:28:18 +08:00
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// Add an image transform plugin with custom configuration
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eleventyConfig.addPlugin(eleventyImageTransformPlugin, {
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extensions: "html", // Process only HTML files
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formats: ["jpg", "webp"],
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widths: ["auto", 400, 800, 1600],
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defaultAttributes: {
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loading: "eager",
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sizes: "auto",
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decoding: "async",
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},
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});
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// Add a transform to minify HTML content
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eleventyConfig.addTransform("minifyHTML", (content, outputPath) => {
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2024-10-16 12:39:17 +08:00
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// Only minify HTML files
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2024-10-17 12:28:18 +08:00
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if (outputPath?.endsWith(".html")) {
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2024-10-16 12:39:17 +08:00
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return minify(content, {
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collapseWhitespace: true, // Collapses whitespace between tags
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removeComments: true, // Removes HTML comments
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minifyCSS: true, // Minifies inline CSS
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minifyJS: true, // Minifies inline JavaScript
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removeAttributeQuotes: true, // Removes quotes around attributes when possible
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2024-10-17 12:28:18 +08:00
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removeOptionalTags: false, // Removes optional HTML tags (<html>, <head>, <body>)
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2024-10-16 12:39:17 +08:00
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collapseBooleanAttributes: true, // Converts boolean attributes to HTML5 style
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removeEmptyAttributes: true, // Removes empty attributes
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minifyURLs: true, // Minifies URLs in attributes
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html5: true, // Enables HTML5 parsing
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});
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}
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2024-10-17 12:28:18 +08:00
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return content; // Return the original content if not HTML
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2024-10-16 12:39:17 +08:00
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});
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2023-12-16 12:20:33 +08:00
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2024-10-17 12:28:18 +08:00
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// CleanCSS
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eleventyConfig.on("afterBuild", async () => {
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const inputFiles = ["src/css/reset.css", "src/css/index.css"];
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for (const inputFile of inputFiles) {
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try {
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const input = await fs.readFile(inputFile, "utf8");
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const output = new CleanCSS().minify(input);
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const outputFilePath = `site/css/${inputFile.split("/").pop()}`; // Adjust output path as necessary
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await fs.writeFile(outputFilePath, output.styles);
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console.log(
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`eleventy-plugin-cleancss: Successfully minified ${inputFile} to ${outputFilePath}`,
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);
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} catch (err) {
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console.error(
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`eleventy-plugin-cleancss: Error minifying ${inputFile}: ${err}`,
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);
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}
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}
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});
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// Purge unused CSS
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eleventyConfig.addPlugin(PurgeCss, {
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config: "./purgecss.config.cjs",
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});
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// Return effective configuration for Eleventy
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2024-10-16 12:39:17 +08:00
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return {
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dir: {
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input: "src",
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includes: "_includes",
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output: "site",
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},
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};
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2024-10-17 12:28:18 +08:00
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}
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