@earthtone/grayson-generator/bin/grayson-gen.js

#!/usr/bin/env node
const program = require('commander');
const chalk = require('chalk');
const fs = require('fs-extra');

const MarkdownIt = require('markdown-it');
const hljs = require('highlight.js');
const namedHeadings = require('markdown-it-named-headings');

var md = MarkdownIt({
	html: true,
	highlight: function(s, l){
		if(l && hljs.getLanguage(l)){
			return hljs.highlight(l, s).value;
		}

		return '';
	}
}).use(namedHeadings);

var makeNavList = require('./lib/make-nav-list');
var template = require('./lib/template');

program
	.option('-o, --output <output>', 'Directory for HTML output')
	.option('-p, --pages <pages>', 'Directory of Markdown Files to be Ingested')
	.option('-m, --meta <metadata>', 'Directory JSON Metadata')
	.parse(process.argv);


var rootPath = process.cwd();

var outPath = program.output || `${rootPath}/public`;
var pagesPath = program.pages || `${rootPath}/markdown`;
var metaPath = program.meta || `${rootPath}/meta`;
var pages = {}, pagesMeta = {};


console.log(chalk.cyan('Loading pages...'));
try {
	console.log(pagesPath);
	for(let page of fs.readdirSync(pagesPath)){
		console.log(chalk.dim.cyan(`Loading ${page}`));
		pages[page] = fs.readFileSync(`${pagesPath}/${page}`, 'utf-8');
	}
} catch(err) {
	console.log(chalk.bold.red(`Error during loading: ${err}`));
	process.exit(1);
}

console.log(chalk.cyan('Loading pages metadata...'));
try {
	for(let pageMeta of fs.readdirSync(metaPath)){
		console.log(chalk.dim.cyan(`Loading ${pageMeta}`));
		pagesMeta[pageMeta] = fs.readFileSync(`${metaPath}/${pageMeta}`, 'utf-8');
	}
} catch(err) {
	console.log(chalk.bold.red(`Error during metadata loading: ${err}`));
	process.exit(1);
}

console.log(chalk.green('Generating pages...'));
try {
	for(let page of Object.entries(pages)){
		let pageName = page[0].slice(0, page[0].lastIndexOf('.'));
		let metaData = pagesMeta.hasOwnProperty(`${pageName}.json`) ? JSON.parse(pagesMeta[`${pageName}.json`]) : JSON.parse(pagesMeta['defaults.json']);
		metaData.title = metaData.title || pageName;
		
		let pageContent = page[1];
		
		console.log(chalk.dim.green(`Generating ${pageName}.html`));

		fs.writeFileSync(`${outPath}/${pageName}.html`, template({content: { body: md.render(pageContent), nav: makeNavList(pages) }, meta: metaData}));
	}
} catch(err) {
	console.log(chalk.bold.red(`Error during page generation: ${err}`));
	process.exit(1);
}

console.log(chalk.bold.green('Done!'));