electron/build/webpack/run-compiler.js

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');

const configPath = process.argv[2];
const outPath = path.resolve(process.argv[3]);
const config = require(configPath);
config.output = {
  path: path.dirname(outPath),
  filename: path.basename(outPath)
};

const { wrapInitWithProfilingTimeout, wrapInitWithTryCatch, ...webpackConfig } = config;

webpack(webpackConfig, (err, stats) => {
  if (err) {
    console.error(err);
    process.exit(1);
  } else if (stats.hasErrors()) {
    console.error(stats.toString('normal'));
    process.exit(1);
  } else {
    let contents = fs.readFileSync(outPath, 'utf8');
    if (wrapInitWithTryCatch) {
      contents = `try {
${contents}
} catch (err) {
  console.error('Electron ${webpackConfig.output.filename} script failed to run');
  console.error(err);
}`;
    }
    if (wrapInitWithProfilingTimeout) {
      contents = `function ___electron_webpack_init__() {
${contents}
};
if ((globalThis.process || binding.process).argv.includes("--profile-electron-init")) {
  setTimeout(___electron_webpack_init__, 0);
} else {
  ___electron_webpack_init__();
}`;
    }
    fs.writeFileSync(outPath, contents);
    process.exit(0);
  }
});