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Code Issues

further optimize heavier note parsing functions

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This commit is contained in:
Jake Jarvis 2025-03-16 16:24:42 -04:00
parent cace19db4c
commit c134ae76fd
Signed by: jake
SSH Key Fingerprint: SHA256:nCkvAjYA6XaSPUqc4TfbBQTpzr8Xj7ritg/sGInCdkc
1 changed files with 31 additions and 37 deletions
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52
lib/helpers/posts.ts
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@ -1,6 +1,8 @@
import { cache } from "react";
import path from "path";
import glob from "fast-glob";
import { unified } from "unified";
import { remarkParse, remarkSmartypants, remarkRehype, rehypeSanitize, rehypeStringify } from "./remark-rehype-plugins";
import { decode } from "html-entities";
import { formatDate } from "./format-date";
import { BASE_URL, POSTS_DIR } from "../config/constants";
@ -19,21 +21,10 @@ export type FrontMatter = {
// returns front matter and the **raw & uncompiled** markdown of a given slug
export const getFrontMatter = async (slug: string): Promise<FrontMatter> => {
if (!(await getPostSlugs()).includes(slug)) {
throw new Error(`No post found for slug: ${slug}`);
}
const { frontmatter } = await import(`../../${POSTS_DIR}/${slug}/index.mdx`);
const { unified } = await import("unified");
const { remarkParse, remarkSmartypants, remarkRehype, rehypeSanitize, rehypeStringify } = await import(
"./remark-rehype-plugins"
);
// allow *very* limited markdown to be used in post titles
const parseTitle = async (title: string, allowedTags: string[] = []): Promise<string> => {
const newTitle = (
await unified()
// create a reusable processor for titles
const titleProcessor = unified()
.use(remarkParse)
.use(remarkSmartypants, {
quotes: true,
@ -42,19 +33,24 @@ export const getFrontMatter = async (slug: string): Promise<FrontMatter> => {
ellipses: false,
})
.use(remarkRehype)
.use(rehypeSanitize, { tagNames: allowedTags })
.use(rehypeStringify)
.process(title)
).toString();
// assume if we don't want any html titles then we don't want encoded html entities either
return allowedTags.length === 0 ? decode(newTitle) : newTitle;
};
.use(rehypeStringify);
// process title as both plain and stylized
const [title, htmlTitle] = await Promise.all([
parseTitle(frontmatter.title),
parseTitle(frontmatter.title, ["code", "em", "strong"]),
titleProcessor()
.use(rehypeSanitize, {
// strip all resulting html tags from the markdown title
tagNames: [],
})
.process(frontmatter.title)
.then((result) => decode(String(result))),
titleProcessor()
.use(rehypeSanitize, {
// allow *very* limited markdown to be used in post titles
tagNames: ["code", "em", "strong"],
})
.process(frontmatter.title)
.then((result) => String(result)),
]);
// return both the parsed YAML front matter (with a few amendments) and the raw, unparsed markdown content
@ -73,7 +69,7 @@ export const getFrontMatter = async (slug: string): Promise<FrontMatter> => {
// use filesystem to get a simple list of all post slugs
export const getPostSlugs = cache(async (): Promise<string[]> => {
// list all .mdx files in POSTS_DIR
const mdxFiles = await glob("**/*.mdx", {
const mdxFiles = await glob("*/index.mdx", {
cwd: path.join(process.cwd(), POSTS_DIR),
dot: false,
});
@ -88,10 +84,8 @@ export const getPostSlugs = cache(async (): Promise<string[]> => {
export const getAllPosts = cache(async (): Promise<FrontMatter[]> => {
// concurrently fetch the front matter of each post
const slugs = await getPostSlugs();
const data = await Promise.all(slugs.map(async (slug) => await getFrontMatter(slug)));
const posts = await Promise.all(slugs.map(getFrontMatter));
// sort the results by date
data.sort((post1, post2) => (post1.date > post2.date ? -1 : 1));
return data;
// sort the results reverse chronologically and return
return posts.sort((post1, post2) => new Date(post1.date).getTime() - new Date(post2.date).getTime());
});