astro.config.ts

import { defineConfig } from "astro/config";
import preact from "@astrojs/preact";
import sitemap from "@astrojs/sitemap";
import mdx from "@astrojs/mdx";
import image from "@astrojs/image";
import rehypeSlug from "rehype-slug";
import rehypeAutoLinkHeadings from "rehype-autolink-headings";
import { h } from "hastscript";

/**
 * Anchor inspiration from:
 * https://github.com/withastro/docs/blob/7ca2ff41859bf82e050daa2d72d0e443acb195d9/astro.config.ts
 */

const AnchorLinkIcon = h(
  "svg",
  {
    width: 16,
    height: 16,
    version: 1.1,
    viewBox: "0 0 16 16",
    xlmns: "http://www.w3.org/2000/svg",
  },
  h("path", {
    fillRule: "evenodd",
    fill: "currentcolor",
    d: "M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z",
  })
);

// https://astro.build/config
export default defineConfig({
  integrations: [
    preact(),
    sitemap(),
    mdx({
      rehypePlugins: [
        rehypeSlug,
        [
          rehypeAutoLinkHeadings,
          {
            properties: {
              class: "anchor-link",
            },
            behavior: "before",
            group: ({ tagName }) =>
              h(`div.header-link.level-${tagName}`, {
                tabIndex: -1,
              }),
            content: () => [
              h(
                `span.anchor-icon`,
                {
                  ariaHidden: "true",
                },
                AnchorLinkIcon
              ),
            ],
          },
        ],
      ],
    }),
    image(),
  ],
  site: process.env.BUILD_GITLAB
    ? "https://adamrecvlohe.com"
    : "https://arecvlohe.github.io",
  outDir: process.env.BUILD_GITLAB ? "public" : undefined,
  publicDir: process.env.BUILD_GITLAB ? "static" : undefined,
});