I have a simple webpack.config.js
module.exports = {
entry: ./app.js,
output: {
filename: bundle.js
},
}
And I want to pass the values for entryand output through command line arguments. Is that possible and how would I do that?
webpack.config.js can also exports a function of env which can return a conf object. You can therefore have a webpack config (above webpack version 5) like:
module.exports = env => {
return {
entry: env.production ? "./app.js": "app-dev.js",
output: {
filename: "bundle.js"
},
}
};
env can be any name that you want. Call webpack from the command-line (or package.json) like this:
webpack --env=production
or
webpack --env=development
in the webpack.config.js, we get the env value is like this,
{ WEBPACK_BUNDLE: true, WEBPACK_BUILD: true, production: true }
