prepare.js

const crypto = require("crypto")
const fs = require("fs")

function write_hash(file) {
  const hash = crypto.createHash("sha256")
                     .update(fs.readFileSync(file))
                     .digest("hex")

  fs.writeFileSync("." + file, hash)
}

write_hash("package.json")

const chalk = require("chalk")

console.log(`\
${chalk.yellow("WARNING")}: '${chalk.cyan("gulp build")}' isn't supported anymore. Use '${chalk.cyan("node make build")}' instead.
`)