82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
const fs = require('fs');
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const matter = require('gray-matter');
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const { join } = require('path');
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const postsDir = join(process.cwd(), 'posts');
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const cacheDir = join(process.cwd(), '.cache');
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function getPost(rawslug, filter = []) {
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const slug = rawslug.replace(/\.md$/, '');
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const path = join(postsDir, `${slug}.md`);
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const file = fs.readFileSync(path, 'utf-8');
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const { data, content } = matter(file);
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if (data['last_updated'] === undefined)
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data['last_updated'] = '';
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if (filter.length === 0)
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return { ...data, content, slug, rawslug };
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let post = {};
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for (const [_, entry] of filter.entries()) {
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if (entry === 'slug')
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post[entry] = slug;
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if (entry === 'rawslug')
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post[entry] = rawslug;
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if (entry === 'content')
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post[entry] = content;
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if (typeof data[entry] !== 'undefined') {
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post[entry] = data[entry]
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}
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}
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return post;
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}
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function getAllPosts(filter = []) {
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const files = fs.readdirSync(postsDir);
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return files
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.filter(c => (!c.match(/^\.]/) && c.match(/\.md$/)))
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.map(file => {
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return getPost(file, filter)
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})
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.sort((a, b) => {
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const dA = new Date(a['created_at']);
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const dB = new Date(b['created_at']);
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return dB - dA;
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});
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}
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const postMetaCacheFile = join(cacheDir, 'posts.meta.json');
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function cachePostsMeta() { // public access cache
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const posts = getAllPosts(['title', 'slug', 'created_at', 'last_updated']);
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if (!fs.existsSync(cacheDir)) {
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fs.mkdirSync(cacheDir);
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}
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fs.writeFile(postMetaCacheFile, JSON.stringify(posts), (e) => {
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if (e)
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console.error(e);
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});
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return posts;
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}
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function getPostsMeta() {
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try {
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const file = fs.readFileSync(postMetaCacheFile, 'utf-8');
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return JSON.parse(file);
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} catch (e) {
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return cachePostsMeta();
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}
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}
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function cache() {
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cachePostsMeta();
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}
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module.exports = { getAllPosts, getPost, getPostsMeta, cache }; |