const crypto = require('crypto') const { dirname, basename, resolve } = require('path') // use sha1 because it's faster, and collisions extremely unlikely anyway const pathSafeHash = s => crypto.createHash('sha1') .update(s) .digest('base64') .replace(/[^a-zA-Z0-9]+/g, '') .slice(0, 8) const retirePath = from => { const d = dirname(from) const b = basename(from) const hash = pathSafeHash(from) return resolve(d, `.${b}-${hash}`) } module.exports = retirePath