.eleventy.js

module.exports = function (eleventyConfig)
{

    const markdownIt = require('markdown-it');
    const markdownItOptions = {
        html: true,
        linkify: true
    };

    const md = markdownIt(markdownItOptions)
        .use(require('markdown-it-footnote'))
        .use(require('markdown-it-attrs'))
        .use(require('markdown-it-bracketed-spans'))
        .use(function (md)
        {
            // Recognize Mediawiki links ([[text]])
            md.linkify.add("[[", {
                validate: /^\s?([^\[\]\|\n\r]+)(\|[^\[\]\|\n\r]+)?\s?\]\]/,
                normalize: match =>
                {
                    const parts = match.raw.slice(2, -2).split("|");
                    parts[0] = parts[0].replace(/.(md|markdown)\s?$/i, "");
                    match.text = (parts[1] || parts[0]).trim();
                    match.url = `/notes/${parts[0].trim()}/`;
                }
            });
        });

    eleventyConfig.addFilter("markdownify", string =>
    {
        return md.render(string);
    });

    eleventyConfig.setLibrary('md', md);

    eleventyConfig.addCollection("notes", function (collection)
    {
        return collection.getFilteredByGlob(["notes/**/*.md", "index.md"]);
    });

    eleventyConfig.addPassthroughCopy({ "node_modules/rough-notation/lib/rough-notation.iife.js": "js/rough-notation.iife.js" });
    eleventyConfig.addPassthroughCopy({ "src/rough-notation-config.js": "js/rough-notation.config.js" });

    eleventyConfig.addPassthroughCopy('src/assets');

    return {
        useGitIgnore: false,
        dir: {
            input: "src",
            output: "_site",
            layouts: "layouts",
            includes: "includes",
            data: "_data"
        },
        passthroughFileCopy: true
    };
};