配下のmdをpdfにする

md2pdf.js

#!/usr/bin/env node

const
    fs = require('fs'),
    path = require('path'),
    markdownpdf = require('markdown-pdf');

const walk = (dir, callback) => {    
    fs.readdirSync(dir).forEach((item) => {
        const filePath = path.join(dir, item);
        const stat = fs.statSync(filePath);
        if (stat.isDirectory()) {
            walk(filePath, callback);
        } else if (stat.isFile()) {
            callback(filePath);
        }
    });
}

const
    src = './docs';
    dest = './tmp/pdf';
    options = {
        "paperFormat": 'A4'
    };

walk('./docs', filePath => {
    if (/.*\.md$/.test(filePath)) {
        const p = path.parse(filePath);
        const output = `${dest}/${p.dir}/${p.name}.pdf`;
        markdownpdf(options)
        .from(filePath)
        .to(output, function() {
            console.log(output);
        });
    }
});