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eleventy.config.js
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eleventy.config.js
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const { DateTime } = require("luxon");
const markdownItAnchor = require("markdown-it-anchor");
const pluginRss = require("@11ty/eleventy-plugin-rss");
const pluginSyntaxHighlight = require("@11ty/eleventy-plugin-syntaxhighlight");
const pluginBundle = require("@11ty/eleventy-plugin-bundle");
const pluginNavigation = require("@11ty/eleventy-navigation");
const { EleventyHtmlBasePlugin } = require("@11ty/eleventy");
const pluginDrafts = require("./eleventy.config.drafts.js");
const pluginImages = require("./eleventy.config.images.js");
/** @param {import('@11ty/eleventy').UserConfig} eleventyConfig */
module.exports = function(eleventyConfig) {
// Copy the contents of the `public` folder to the output folder
// For example, `./public/css/` ends up in `_site/css/`
eleventyConfig.addPassthroughCopy({
"./public/": "/",
"./node_modules/prismjs/themes/prism-okaidia.css": "/css/prism-okaidia.css"
});
// Run Eleventy when these files change:
// https://www.11ty.dev/docs/watch-serve/#add-your-own-watch-targets
// Watch content images for the image pipeline.
eleventyConfig.addWatchTarget("content/**/*.{svg,webp,png,jpeg}");
// App plugins
eleventyConfig.addPlugin(pluginDrafts);
eleventyConfig.addPlugin(pluginImages);
// Official plugins
eleventyConfig.addPlugin(pluginRss);
eleventyConfig.addPlugin(pluginSyntaxHighlight, {
preAttributes: { tabindex: 0 }
});
eleventyConfig.addPlugin(pluginNavigation);
eleventyConfig.addPlugin(EleventyHtmlBasePlugin);
eleventyConfig.addPlugin(pluginBundle);
// Filters
eleventyConfig.addFilter("readableDate", (dateObj, format, zone) => {
// Formatting tokens for Luxon: https://moment.github.io/luxon/#/formatting?id=table-of-tokens
return DateTime.fromJSDate(dateObj, { zone: zone || "utc" }).toFormat(format || "dd LLLL yyyy");
});
eleventyConfig.addFilter('htmlDateString', (dateObj) => {
// dateObj input: https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#valid-date-string
return DateTime.fromJSDate(dateObj, {zone: 'utc'}).toFormat('yyyy-LL-dd');
});
// Get the first `n` elements of a collection.
eleventyConfig.addFilter("head", (array, n) => {
if(!Array.isArray(array) || array.length === 0) {
return [];
}
if( n < 0 ) {
return array.slice(n);
}
return array.slice(0, n);
});
// Return the smallest number argument
eleventyConfig.addFilter("min", (...numbers) => {
return Math.min.apply(null, numbers);
});
// Return all the tags used in a collection
eleventyConfig.addFilter("getAllTags", collection => {
let tagSet = new Set();
for(let item of collection) {
(item.data.tags || []).forEach(tag => tagSet.add(tag));
}
return Array.from(tagSet);
});
eleventyConfig.addFilter("filterTagList", function filterTagList(tags) {
return (tags || []).filter(tag => ["all", "nav", "post", "posts"].indexOf(tag) === -1);
});
// Customize Markdown library settings:
eleventyConfig.amendLibrary("md", mdLib => {
mdLib.use(markdownItAnchor, {
permalink: markdownItAnchor.permalink.ariaHidden({
placement: "after",
class: "header-anchor",
symbol: "#",
ariaHidden: false,
}),
level: [1,2,3,4],
slugify: eleventyConfig.getFilter("slugify")
});
});
eleventyConfig.addShortcode("currentBuildDate", () => {
return (new Date()).toISOString();
})
// Features to make your build faster (when you need them)
// If your passthrough copy gets heavy and cumbersome, add this line
// to emulate the file copy on the dev server. Learn more:
// https://www.11ty.dev/docs/copy/#emulate-passthrough-copy-during-serve
// eleventyConfig.setServerPassthroughCopyBehavior("passthrough");
return {
// Control which files Eleventy will process
// e.g.: *.md, *.njk, *.html, *.liquid
templateFormats: [
"md",
"njk",
"html",
"liquid",
],
// Pre-process *.md files with: (default: `liquid`)
markdownTemplateEngine: "njk",
// Pre-process *.html files with: (default: `liquid`)
htmlTemplateEngine: "njk",
// These are all optional:
dir: {
input: "content", // default: "."
includes: "../_includes", // default: "_includes"
data: "../_data", // default: "_data"
output: "_site"
},
// -----------------------------------------------------------------
// Optional items:
// -----------------------------------------------------------------
// If your site deploys to a subdirectory, change `pathPrefix`.
// Read more: https://www.11ty.dev/docs/config/#deploy-to-a-subdirectory-with-a-path-prefix
// When paired with the HTML <base> plugin https://www.11ty.dev/docs/plugins/html-base/
// it will transform any absolute URLs in your HTML to include this
// folder name and does **not** affect where things go in the output folder.
pathPrefix: "/",
};
};