simple node script to create thumbs out of header images

thumbs.js

const fg = require('fast-glob');
const sharp = require('sharp');

const headers = fg.sync(['src/posts/**/header.jpg']);

headers.forEach(header => {
  thumb = header.replace("src/posts", "_site/news").replace("header", "thumb");
  sharp(header)
    .jpeg({
      quality: 50,
      chromaSubsampling: '4:4:4'
    })
    .resize({
      width: 900
    })
    .toFile(thumb);
});