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generate.js
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generate.js
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const showdown = require('showdown');
const fs = require('fs');
const yaml = require('js-yaml');
const lessonSource = process.argv[2];
const targetDir = process.argv[3];
const generateBetaContent = process.argv.length >= 4 && process.argv[4] === 'beta';
/**
* @param {number} num
* @returns {string}
*/
function pad(num) {
const s = `${num}`;
return s.padStart(2, '0');
}
/**
* @param {string} lang
* @param {number} i
* @param {boolean} isBeta currently unused
* @param {string} chapter
* @returns {string}
*/
function getFileName(lang, i, isBeta, chapter) {
if (i === 0 && lang === 'en') {
return 'index.html';
}
let fileName = `${pad(i)}_${lang}.html`;
if (chapter !== undefined && chapter !== null) {
fileName = `chapter_${chapter}_${lang}.html`;
}
return fileName;
}
/**
* @param {string} source
* @returns {string[]}
*/
const getDirectories = (source) => fs.readdirSync(source, { withFileTypes: true })
.filter((dirent) => dirent.isDirectory())
.map((dirent) => dirent.name);
/**
* @param {string} path
* @returns {any}
*/
const getYaml = (path) => yaml.safeLoad(fs.readFileSync(path));
const languages = getDirectories(lessonSource);
const commonWords = {};
const chapters = [];
languages.forEach((lang) => {
// const lang = languages[x];
const langDir = `${lessonSource}/${lang}`;
commonWords[lang] = getYaml(`${langDir}/common_words.yaml`);
const languageFiles = fs.readdirSync(langDir, { withFileTypes: true })
.filter((f) => f.isFile() && f.name.indexOf('chapter_') === 0)
.map((f) => f.name);
languageFiles.forEach((l) => {
const chap = parseInt(l.substring(8, l.indexOf('.')), 10);
if (chapters[chap] === undefined) {
chapters[chap] = {};
}
chapters[chap][lang] = getYaml(`${langDir}/${l}`);
});
});
const pages = [];
chapters.forEach((c, x) => {
for (let i = 0; i < c.en.length; i += 1) {
const page = {};
if (i === 0 && x !== 0) {
page.chapter = x;
}
Object.keys(c).forEach((lang) => {
page[lang] = c[lang][i];
});
pages.push(page);
}
});
const lessons = {
common_words: commonWords,
pages,
};
const converter = new showdown.Converter();
/**
* @param {string[]} words
* @param {string} lang
* @param {string} w
* @returns {string}
*/
function getWord(words, lang, w) {
if (words[lang][w]) {
return words[lang][w];
}
return words.en[w];
}
/**
*
* @param {string[]} words
* @param {string} lang
* @returns {string}
*/
const getHead = (words, lang) => {
let rtl_langs = ['ar'];
let lang_dir = (rtl_langs.includes(lang))?"rtl":"ltr";
return `<!DOCTYPE html>
<html lang="${lang}" dir="${lang_dir}">
<head>
<title>${getWord(words, lang, 'tor')} - Let's go on an adventure!</title>
<meta charset="UTF-8">
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<meta content="utf-8" http-equiv="encoding">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="keywords" content="Rust, Programming, Learning">
<meta name="description" content="Welcome to the Tour of Rust. This is meant to be a step by step guide through the features of the Rust programming language">
<meta name="theme-color" content="#ff6801"/>
<link rel="stylesheet" href="tour.css">
<link rel="preload" href="https://fonts.gstatic.com/s/neuton/v12/UMBQrPtMoH62xUZKdK0vfQr4LLkw6A.woff2" as="font" />
<link rel="preload" href="https://fonts.gstatic.com/s/neuton/v12/UMBTrPtMoH62xUZCz4g6UCj1Bg.woff2" as="font" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Neuton:ital,wght@0,400;0,700;1,400&display=swap" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:wght@400;700&display=swap" />
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="manifest" href="./site.webmanifest">
<script src="./tour.js" defer></script>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-155199982-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-155199982-1', { 'anonymize_ip': true });
</script>
</head>`;
};
/**
* @param {Array} lessons
* @param {string} lang
* @param {string} title
* @param {string} code
* @param {string} content
* @param {number} index
* @param {boolean} isLast
* @param {string[]} words
* @param {boolean} isBeta
* @returns
*/
function template(lessonsData, lang, title, code, content, index, isLast, words, isBeta) {
return `${getHead(words, lang)}
<body>
<div class="tour">
<div class="header">
<span class="title"><a href="${getFileName(lang, 0, isBeta, lessonsData[0]?.chapter)}">${getWord(words, lang, 'tor')}</a></span>
<span class="nav">
<span class="toc"><a href="TOC_${lang}.html">${getWord(words, lang, 'toc')}</a></span>
</div>
<div class="page">
<h1>${title}</h1>
${content}
<div class="bottomnav">
${index !== 0 ? `<span class="back"><a href="${isBeta ? 'beta_' : ''}${getFileName(lang, index - 1, isBeta, lessonsData[index - 1]?.chapter)}" rel="prev">❮ ${getWord(words, lang, 'previous')}</a></span>` : ''}
${isLast ? '' : `<span class="next"><a href="${isBeta ? 'beta_' : ''}${getFileName(lang, index + 1, isBeta, lessonsData[index + 1]?.chapter)}" rel="next">${getWord(words, lang, 'next')} ❯</a></span>`}
</div>
</div>
${code ? `<div class="code">
<iframe width="100%" src="${code}" scrolling="no" frameborder="no" allowtransparency="true" allowfullscreen="true" sandbox="allow-forms allow-pointer-lock allow-popups allow-same-origin allow-scripts allow-modals" title="Rust Playground" loading="lazy"></iframe>
</div>` : '<div class="code"><center><img src="/ferris_lofi.png" alt="Mascot Ferris" width="300" height="236"></center></div>'}
</div>
</body>
</html>`;
}
languages.forEach((lang) => {
let c = 0;
const words = lessons.common_words;
const langLessons = lessons.pages.filter((x) => {
if (!generateBetaContent && x.beta === true) {
return false;
}
return true;
});
const betaLessons = lessons.pages.filter(() => true);
langLessons.forEach((lesson, i) => {
let fileName = getFileName(lang, i, false, lesson?.chapter);
if (i === 0 && lang === 'en') {
fileName = 'index.html';
}
let lessonTitle = `[${getWord(words, lang, 'untranslated')}] ${lesson.en.title}`;
let lessonContent = converter.makeHtml(lesson.en.content_markdown);
let lessonCode = lesson.en.code;
if (lesson[lang]) {
let targetLang = lang;
if (lesson[lang].clone) {
targetLang = lesson[lang].clone;
}
lessonTitle = lesson[targetLang].title;
let content = lesson[targetLang].content_html;
if (!content) {
content = converter.makeHtml(lesson[targetLang].content_markdown);
}
lessonContent = content;
lessonCode = lesson[targetLang].code || lesson.en.code;
if (lesson[lang].clone) {
if (lesson[lang].code) {
lessonCode = lesson[lang].code;
}
}
}
fs.writeFileSync(`${targetDir}/${fileName}`, template(langLessons, lang, lessonTitle, lessonCode, lessonContent, c, i === langLessons.length - 1, words, false));
c += 1;
});
c = 0;
betaLessons.forEach((lesson, i) => {
if (lesson[lang]) {
let targetLang = lang;
if (lesson[lang].clone) {
targetLang = lesson[lang].clone;
}
const fileName = getFileName(lang, i, true, lesson.chapter);
let lessonTitle = `[${getWord(words, targetLang, 'untranslated')}] ${lesson.en.title}`;
let lessonContent = lesson.en.content_markdown;
let lessonCode = lesson.en.code;
if (lesson[targetLang]) {
lessonTitle = lesson[targetLang].title;
let content = lesson[targetLang].content_html;
if (!content) {
content = converter.makeHtml(lesson[targetLang].content_markdown);
}
lessonContent = content;
lessonCode = lesson[targetLang].code || lesson.en.code;
}
fs.writeFileSync(`${targetDir}/beta_${fileName}`, template(betaLessons, lang, lessonTitle, lessonCode, lessonContent, c, i === betaLessons.length - 1, words, true));
c += 1;
}
});
const fileName = `TOC_${lang}.html`;
fs.writeFileSync(`${targetDir}/${fileName}`,
`${getHead(words, lang)}
<body>
<div class="tour">
<div class="header">
<span class="title"><a href="${getFileName(lang, 0)}">${getWord(words, lang, 'tor')}</a></span>
<span class="nav">
</span>
</div>
<div>
<h1>${getWord(words, lang, 'lessons')}</h1>
<ul>
${langLessons.map((x, i) => {
let targetLang = lang;
if (x[lang] && x[lang].clone) {
targetLang = x[lang].clone;
}
let s = `<li><a href="${getFileName(lang, i, false, x.chapter)}">${x[targetLang] ? x[targetLang].title : `[${getWord(words, targetLang, 'untranslated')}] ${x.en.title}`}</a></li>`;
if (x.chapter !== undefined) {
s = `</ul><h3><a href="${getFileName(lang, i, false, x.chapter)}">${x[targetLang] ? x[targetLang].title : `[${getWord(words, targetLang, 'untranslated')}] ${x.en.title}`}</a></h3><ul>`;
}
return s;
}).join('\n')}
</ul>
</div>
</div>
</body>
</html>`);
});