Clone of xpepermint's hash manifest file writer plugin for Webpack.
Original repository: https://github.com/xpepermint/hash-webpack-plugin
npm install --save-dev hash-webpack-plugin
...
const HashPlugin = require('hash-webpack-plugin');
module.exports = {
...
plugins: [
new HashPlugin({ path: './build', fileName: 'hash.txt' })
]
};