attempt to make edge functions a tad bit lighter

lib/helpers/build-feed.ts

@@ -2,7 +2,6 @@ import { Feed } from "feed";
 import { getAllNotes } from "./parse-notes";
 import * as config from "../config";
 import { meJpg } from "../config/favicons";
-import { RELEASE_DATE } from "../config/constants";
 import type { GetServerSideProps } from "next";
 
 export type GetServerSideFeedProps = GetServerSideProps<Record<string, never>>;
@@ -22,20 +21,20 @@ export const buildFeed = async (
 
   // https://github.com/jpmonette/feed#example
   const feed = new Feed({
-    id: `${config.baseUrl}/`,
-    link: `${config.baseUrl}/`,
+    id: `${process.env.BASE_URL}/`,
+    link: `${process.env.BASE_URL}/`,
     title: config.siteName,
     description: config.longDescription,
     copyright: config.licenseUrl,
-    updated: new Date(RELEASE_DATE),
-    image: `${config.baseUrl}${meJpg.src}`,
+    updated: new Date(process.env.RELEASE_DATE || Date.now()),
+    image: `${process.env.BASE_URL}${meJpg.src}`,
     feedLinks: {
-      rss: `${config.baseUrl}/feed.xml`,
-      atom: `${config.baseUrl}/feed.atom`,
+      rss: `${process.env.BASE_URL}/feed.xml`,
+      atom: `${process.env.BASE_URL}/feed.atom`,
     },
     author: {
       name: config.authorName,
-      link: `${config.baseUrl}/`,
+      link: `${process.env.BASE_URL}/`,
       email: config.authorEmail,
     },
   });
@@ -48,11 +47,11 @@ export const buildFeed = async (
       link: note.permalink,
       title: note.title,
       description: note.description,
-      image: note.image && `${config.baseUrl}${note.image}`,
+      image: note.image && `${process.env.BASE_URL}${note.image}`,
       author: [
         {
           name: config.authorName,
-          link: `${config.baseUrl}/`,
+          link: `${process.env.BASE_URL}/`,
         },
       ],
       date: new Date(note.date),

lib/helpers/compile-note.ts

@@ -1,7 +1,6 @@
 import { serialize } from "next-mdx-remote/serialize";
 import { minify } from "uglify-js";
 import { getNoteData } from "./parse-notes";
-import { IS_DEV_SERVER } from "../config/constants";
 
 // remark/rehype markdown plugins
 import remarkGfm from "remark-gfm";
@@ -38,14 +37,15 @@ export const compileNote = async (slug: string): Promise<NoteWithSource> => {
   // TODO: next-mdx-remote v4 doesn't (yet?) minify compiled JSX output, see:
   // https://github.com/hashicorp/next-mdx-remote/pull/211#issuecomment-1013658514
   // ...so for now, let's do it manually (and conservatively) with uglify-js when building for production.
-  const compiledSource = IS_DEV_SERVER
-    ? source.compiledSource
-    : minify(source.compiledSource, {
-        toplevel: true,
-        parse: {
-          bare_returns: true,
-        },
-      }).code;
+  const compiledSource =
+    process.env.NODE_ENV === "production"
+      ? minify(source.compiledSource, {
+          toplevel: true,
+          parse: {
+            bare_returns: true,
+          },
+        }).code
+      : source.compiledSource;
 
   return {
     frontMatter,

lib/helpers/parse-notes.ts

@@ -5,19 +5,20 @@ import pMap from "p-map";
 import pMemoize from "p-memoize";
 import matter from "gray-matter";
 import removeMarkdown from "remove-markdown";
-import { marked } from "marked";
-// @ts-ignore
-import { markedSmartypants } from "marked-smartypants";
+import { unified } from "unified";
+import remarkParse from "remark-parse";
+import remarkRehype from "remark-rehype";
+import rehypeStringify from "rehype-stringify";
+import remarkSmartypants from "remark-smartypants";
 import { formatDate } from "./format-date";
-import { baseUrl } from "../config";
-import { NOTES_DIR } from "../config/constants";
 
 import type { NoteFrontMatter } from "../../types";
+import rehypeSanitize from "rehype-sanitize";
 
 export const getNoteSlugs = async (): Promise<string[]> => {
-  // list all .mdx files in NOTES_DIR
+  // list all .mdx files in "/notes"
   const mdxFiles = await glob("*.mdx", {
-    cwd: path.join(process.cwd(), NOTES_DIR),
+    cwd: path.join(process.cwd(), "notes"),
     dot: false,
   });
 
@@ -34,13 +35,25 @@ export const getNoteData = async (
   frontMatter: NoteFrontMatter;
   content: string;
 }> => {
-  const fullPath = path.join(process.cwd(), NOTES_DIR, `${slug}.mdx`);
+  const fullPath = path.join(process.cwd(), "notes", `${slug}.mdx`);
   const rawContent = await fs.readFile(fullPath, "utf8");
   const { data, content } = matter(rawContent);
 
-  // attach marked extensions:
-  // https://marked.js.org/using_advanced#extensions
-  marked.use(markedSmartypants());
+  // allow *very* limited markdown to be used in post titles
+  const htmlTitle = String(
+    await unified()
+      .use(remarkParse)
+      .use(remarkRehype)
+      .use(rehypeSanitize, { tagNames: ["code", "em", "strong"] })
+      .use(remarkSmartypants, {
+        quotes: true,
+        dashes: "oldschool",
+        backticks: false,
+        ellipses: false,
+      })
+      .use(rehypeStringify, { allowDangerousHtml: true })
+      .process(data.title)
+  );
 
   // return both the parsed YAML front matter (with a few amendments) and the raw, unparsed markdown content
   return {
@@ -48,15 +61,9 @@ export const getNoteData = async (
       ...(data as Partial<NoteFrontMatter>),
       // zero markdown title:
       title: removeMarkdown(data.title),
-      // allow markdown formatting to appear in post titles in some places (rarely used):
-      htmlTitle: marked.parseInline(data.title, {
-        silent: true,
-        // these are deprecated and throw very noisy warnings but are still defaults, make it make sense...
-        mangle: false,
-        headerIds: false,
-      }),
+      htmlTitle,
       slug,
-      permalink: `${baseUrl}/${NOTES_DIR}/${slug}/`,
+      permalink: `${process.env.BASE_URL}/notes/${slug}/`,
       date: formatDate(data.date), // validate/normalize the date string provided from front matter
     },
     content,