2021-12-16 13:57:24 +00:00
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#!/usr/bin/env node
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const fs = require('fs');
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const pathM = require('path');
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const argparse = require('argparse');
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const markdownIt = require('markdown-it');
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const markdownItTaskCheckbox = require('markdown-it-task-checkbox');
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const markdownItEmoji = require('markdown-it-emoji');
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2021-12-16 21:20:03 +00:00
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const markdownItFootnote = require('markdown-it-footnote');
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const markdownItAdmonition = require('markdown-it-admonition');
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2021-12-16 13:57:24 +00:00
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const markdownItHeaderAnchors = require('./markdown-it-header-anchors');
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const Prism = require('prismjs/components/prism-core');
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const loadPrismLanguages = require('prismjs/components/');
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const PRISM_COMPONENTS = require('prismjs/components.js');
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// TODO: integrate <https://github.com/PrismJS/prism-themes>
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const PRISM_THEMES = Object.keys(PRISM_COMPONENTS.themes).filter((k) => k !== 'meta');
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let parser = new argparse.ArgumentParser();
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parser.add_argument('INPUT_FILE', {
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nargs: argparse.OPTIONAL,
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help: '(stdin by default)',
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});
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parser.add_argument('OUTPUT_FILE', {
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nargs: argparse.OPTIONAL,
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help: '(stdout by default)',
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});
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parser.add_argument('--input-encoding', {
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default: 'utf-8',
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help: '(utf-8 by default)',
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});
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parser.add_argument('--output-encoding', {
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default: 'utf-8',
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help: '(utf-8 by default)',
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});
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parser.add_argument('--theme', {
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choices: ['dotfiles', 'github', 'none'],
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default: 'dotfiles',
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});
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parser.add_argument('--syntax-theme', {
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choices: [...PRISM_THEMES, 'none', 'dotfiles'],
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});
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parser.add_argument('--stylesheet', {
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nargs: argparse.ZERO_OR_MORE,
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});
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parser.add_argument('--script', {
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nargs: argparse.ZERO_OR_MORE,
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});
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let args = parser.parse_args();
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loadPrismLanguages(); // loads all languages
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let md = markdownIt({
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html: true,
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linkify: true,
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highlight: (code, lang) => {
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if (lang && Object.prototype.hasOwnProperty.call(Prism.languages, lang)) {
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return Prism.highlight(code, Prism.languages[lang], lang);
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}
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return null;
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},
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});
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md.use(markdownItTaskCheckbox);
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md.use(markdownItEmoji, { shortcuts: {} });
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md.use(markdownItHeaderAnchors);
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2021-12-16 21:20:03 +00:00
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md.use(markdownItFootnote);
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md.use(markdownItAdmonition);
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2021-12-16 13:57:24 +00:00
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let markdownDocument = fs.readFileSync(args.INPUT_FILE || 0, args.input_encoding);
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let renderedMarkdown = md.render(markdownDocument);
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let stylesheetsTexts = [];
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let scriptsTexts = [];
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let syntaxThemeName = 'dotfiles';
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if (args.theme === 'dotfiles') {
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stylesheetsTexts.push(fs.readFileSync(require.resolve('./themes-out/my.css'), 'utf-8'));
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} else if (args.theme === 'github') {
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stylesheetsTexts.push(fs.readFileSync(require.resolve('./themes-out/github.css'), 'utf-8'));
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} else {
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syntaxThemeName = 'none';
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}
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syntaxThemeName = args.syntax_theme || syntaxThemeName;
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if (syntaxThemeName && syntaxThemeName !== 'none') {
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stylesheetsTexts.push(
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fs.readFileSync(
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require.resolve(
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syntaxThemeName === 'dotfiles'
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? './themes-out/my-prismjs-theme.css'
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: `prismjs/themes/${syntaxThemeName}.css`,
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),
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'utf-8',
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),
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);
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}
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for (let stylesheetPath of args.stylesheet || []) {
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stylesheetsTexts.push(fs.readFileSync(stylesheetPath));
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}
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for (let scriptPath of args.script || []) {
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scriptsTexts.push(fs.readFileSync(scriptPath));
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}
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let renderedHtmlDocument = `
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<title>${pathM.basename(args.INPUT_FILE || '<stdin>')}</title>
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${stylesheetsTexts
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.map((s) => {
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let st = s.trim();
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return !st.includes('\n') ? `<style>${st}</style>` : `<style>\n${s}\n</style>`;
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})
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.join('\n')}
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</head>
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<body>
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<article class="markdown-body">
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${renderedMarkdown}
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</article>
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${scriptsTexts
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.map((s) => {
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let st = s.trim();
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return !st.includes('\n') ? `<script>${st}</script>` : `<script>\n${s}\n</script>`;
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})
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.join('\n')}
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</body>
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</html>
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`.trim();
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fs.writeFileSync(args.OUTPUT_FILE || 1, renderedHtmlDocument, args.output_encoding);
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