Symfony Encore trick for completion in PHPStorm (Can't analyse webpack.config.js)

webpack.config.js

...
let config = Encore.getWebpackConfig();
if(!Encore.isProduction()) {
  fs.writeFile("fakewebpack.config.js", "module.exports = "+JSON.stringify(config), function(err) {
        if(err) {
            return console.log(err);
        }
        console.log("fakewebpack.config.js written");
  });
}


module.exports = config;

// Then in PhpStorm webpack settings, point to the fakewebpack.config.js file

There is a linked issue on symfony/webpack-encore#236

This solution has some drawbacks: read symfony/webpack-encore#236 (comment) for more information.