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Code Issues Activity

fs -> fs/promises -> asyncify all note parsing

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Jake Jarvis
2022-04-26 17:22:44 -04:00
parent 36e0835947
commit a3870a15db
6 changed files with 31 additions and 21 deletions
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35
lib/helpers/parse-notes.ts
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@@ -1,4 +1,4 @@
import fs from "fs";
import fs from "fs/promises";
import path from "path";
import { renderToStaticMarkup } from "react-dom/server";
import { serialize } from "next-mdx-remote/serialize";
@@ -21,16 +21,17 @@ import rehypePrism from "rehype-prism-plus";
import type { NoteType } from "../../types";
// returns all .mdx files in NOTES_DIR (without .mdx extension)
export const getNoteSlugs = () =>
fs
.readdirSync(path.join(process.cwd(), NOTES_DIR))
.filter((file) => /\.mdx$/.test(file))
.map((noteFile) => noteFile.replace(/\.mdx$/, ""));
export const getNoteSlugs = async () => {
// get all files in NOTES_DIR
const files = await fs.readdir(path.join(process.cwd(), NOTES_DIR));
// narrow to only the .mdx files and strip the .mdx extension
return files.filter((file) => /\.mdx$/.test(file)).map((noteFile) => noteFile.replace(/\.mdx$/, ""));
};
// returns front matter and/or *raw* markdown contents of a given slug
export const getNoteData = (slug: string): Omit<NoteType, "source"> & { content: string } => {
export const getNoteData = async (slug: string): Promise<Omit<NoteType, "source"> & { content: string }> => {
const fullPath = path.join(process.cwd(), NOTES_DIR, `${slug}.mdx`);
const rawContent = fs.readFileSync(fullPath, "utf8");
const rawContent = await fs.readFile(fullPath, "utf8");
const { data, content } = matter(rawContent);
// carefully allow VERY limited markdown in post titles...
@@ -65,7 +66,7 @@ export const getNoteData = (slug: string): Omit<NoteType, "source"> & { content:
// fully parses MDX into JS and returns *everything* about a note
export const getNote = async (slug: string): Promise<NoteType> => {
const { frontMatter, content } = getNoteData(slug);
const { frontMatter, content } = await getNoteData(slug);
const source = await serialize(content, {
parseFrontmatter: false,
mdxOptions: {
@@ -96,7 +97,15 @@ export const getNote = async (slug: string): Promise<NoteType> => {
};
// returns the front matter of ALL notes, sorted reverse chronologically
export const getAllNotes = () =>
getNoteSlugs()
.map((slug) => getNoteData(slug).frontMatter)
.sort((note1: NoteType["frontMatter"], note2: NoteType["frontMatter"]) => (note1.date > note2.date ? -1 : 1));
export const getAllNotes = async () => {
const slugs = await getNoteSlugs();
// for each slug, query its front matter
// https://stackoverflow.com/a/40140562/1438024
const data = await Promise.all(slugs.map(async (slug) => (await getNoteData(slug)).frontMatter));
// sort the results by date
return data.sort((note1: NoteType["frontMatter"], note2: NoteType["frontMatter"]) =>
note1.date > note2.date ? -1 : 1
);
};