www/util/slug.js
2022-04-27 04:03:21 -04:00

69 lines
1.8 KiB
JavaScript

const fs = require('fs');
const matter = require('gray-matter');
const { join } = require('path');
const postsDir = join(process.cwd(), 'posts');
const cacheDir = join(process.cwd(), '.next', 'cache');
const publicDir = join(process.cwd(), 'public');
function getPost(rawslug, filter = []) {
const slug = rawslug.replace(/\.md$/, '');
const path = join(postsDir, `${slug}.md`);
const file = fs.readFileSync(path, 'utf-8');
const { data, content } = matter(file);
if (data['last_updated'] === undefined)
data['last_updated'] = data['created_at'];
if (filter.length === 0)
return { ...data, content, slug, rawslug };
let post = {};
for (const [_, entry] of filter.entries()) {
if (entry === 'slug')
post[entry] = slug;
if (entry === 'rawslug')
post[entry] = rawslug;
if (entry === 'content')
post[entry] = content;
if (typeof data[entry] !== 'undefined') {
post[entry] = data[entry]
}
}
return post;
}
function getAllPosts(filter = []) {
const files = fs.readdirSync(postsDir);
return files
.filter(c => !c.match(/^\./))
.map(file => {
return getPost(file, filter)
});
}
function cachePostsMeta() { // public access cache
const posts = getAllPosts(['title', 'slug', 'created_at', 'last_updated']);
fs.writeFile(join(publicDir, 'posts.json'), JSON.stringify(posts), (e) => {
if (e)
console.error(e);
});
return posts;
}
function getPostsMeta() {
const file = fs.readFileSync(join(publicDir, 'posts.json'), 'utf-8');
if (!file) {
return cachePostsMeta();
}
return JSON.parse(file);
}
module.exports = { getAllPosts, getPost, getPostsMeta, cachePostsMeta };