contentlayer.config.ts

import { defineDocumentType, makeSource } from "contentlayer/source-files";
import path from "path";
import rehypeAutolinkHeadings from "rehype-autolink-headings";
import rehypePrettyCode from "rehype-pretty-code";
import rehypeSlug from "rehype-slug";
import remarkGfm from "remark-gfm";

const Blog = defineDocumentType(() => ({
  name: "Blog",
  filePathPattern: `**/*.mdx`,
  contentType: "mdx",
  fields: {
    title: {
      type: "string",
      description: "The title of the post",
      required: true,
    },
    date: {
      type: "string",
      description: "The date of the post",
      required: true,
    },
    description: {
      type: "string",
      description: "The description of the post",
      required: true,
    },
    published: {
      type: "boolean",
      description: "The status of the post",
      required: true,
      default: true,
    },
  },
  computedFields: {
    url: {
      type: "string",
      resolve: (doc) => `blog/${doc._raw.flattenedPath}`,
    },
  },
}));

export default makeSource({
  contentDirPath: `${path.join()}/src/content/blogs`,
  documentTypes: [Blog],
  mdx: {
    remarkPlugins: [remarkGfm],
    rehypePlugins: [
      rehypeSlug,
      [
        rehypePrettyCode as any,
        {
          onVisitLine(node: { children: string | any[] }) {
            if (node.children.length === 0) {
              node.children = [{ type: "text", value: " " }];
            }
          },
          onVisitHighlightedLine(node: {
            properties: { className: string[] };
          }) {
            node.properties.className.push("line--highlighted");
          },
          onVisitHighlightedWord(node: {
            properties: { className: string[] };
          }) {
            node.properties.className = ["word--highlighted"];
          },
        },
      ],
      [
        rehypeAutolinkHeadings,
        {
          properties: {
            className: ["anchor"],
          },
        },
      ],
    ],
  },
});