Klemek
127 lines
4.9 KiB
JavaScript
127 lines
4.9 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const joinUrl = (...paths) => path.join(...paths).replace(/\\/g, '/');
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/**
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* Get all files path inside a given folder path
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* @param dir
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* @param cb
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*/
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const getFileTree = (dir, cb) => {
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let list = [];
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let remaining = 0;
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fs.readdir(dir, { withFileTypes: true }, (err, items) => {
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if (err) {
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cb(err);
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} else {
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items.forEach((item) => {
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if (item.isDirectory()) {
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remaining++;
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getFileTree(path.join(dir, item.name), (err, out) => {
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if (err) {
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cb(err);
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} else {
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list.push(...out);
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remaining--;
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if (remaining === 0) {
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cb(null, list);
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}
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}
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});
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} else {
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list.push(path.join(dir, item.name));
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}
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});
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if (remaining === 0) {
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cb(null, list);
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}
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}
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});
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};
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/**
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* Tries to read a markdown file and match a title and a thumbnail
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* @param path
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* @param thumbnailTag - how the thumbnail image desc is given as 
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* @param cb
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*/
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const readIndexFile = (path, thumbnailTag, cb) => {
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fs.readFile(path, { encoding: 'UTF-8' }, (err, data) => {
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if (err) {
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cb(err);
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} else {
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let info = {};
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const regRes1 = data.match(/(^|[^#])#([^#\r\n]*)\r?\n?$/m);
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info.title = regRes1 ? regRes1[2].trim() : undefined;
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const thumbnailRegEx = new RegExp(`!\\[${thumbnailTag}]\\(([^)]*)\\)`, 'i');
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const regRes2 = data.match(thumbnailRegEx);
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info.thumbnail = regRes2 ? regRes2[1].trim() : undefined;
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cb(null, info);
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}
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});
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};
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module.exports = (config) => {
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return {
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fileTree: config['test'] ? getFileTree : undefined,
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readIndexFile: config['test'] ? readIndexFile : undefined,
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/**
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* find and read all articles inside the data directory
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* @param cb
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*/
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fetchArticles: (cb) => {
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getFileTree(config['data_dir'], (err, fileList) => {
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if (err) {
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cb(err);
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} else {
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const paths = fileList
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.map((p) => p.substr(config['data_dir'].length + 1).split(path.sep))
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.filter((p) => p.length === 4 && (p[3] === config['article']['index'] || p[3] === config['article']['draft']) &&
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/^\d{4}$/.test(p[0]) && /^\d{2}$/.test(p[1]) && /^\d{2}$/.test(p[2]));
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if (paths.length === 0) {
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cb(null, {});
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}
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const articles = {};
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let remaining = 0;
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paths.forEach((p) => {
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const article = {
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path: joinUrl(p[0], p[1], p[2]),
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draft: p[3] === config['article']['draft'],
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realPath: path.join(config['data_dir'], p[0], p[1], p[2], p[3]),
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year: parseInt(p[0]),
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month: parseInt(p[1]),
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day: parseInt(p[2]),
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};
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article.date = new Date(article.year, article.month, article.day);
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article.date.setUTCHours(0);
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remaining++;
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readIndexFile(article.realPath, config['article']['thumbnail_tag'], (err, info) => {
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if (err) {
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cb(err);
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} else {
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article.title = info.title || config['article']['default_title'];
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article.thumbnail = info.thumbnail ? joinUrl(article.path, info.thumbnail) : config['article']['default_thumbnail'];
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article.escapedTitle = article.title.toLowerCase().replace(/[^\w]/gm, ' ')
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.trim()
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.replace(/ /gm, '_');
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article.url = '/' + joinUrl(article.path, article.escapedTitle) + '/';
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if (!articles[article.path] || !article.draft) {
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articles[article.path] = article;
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}
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remaining--;
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if (remaining === 0) {
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cb(null, articles);
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}
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}
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});
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});
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}
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});
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},
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};
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};
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