const { app } = require('electron'); const fs = require('fs'); const path = require('path'); // non-existent user data folder should not break requestSingleInstanceLock() // ref: https://github.com/electron/electron/issues/33547 const userDataFolder = path.join(app.getPath('home'), 'electron-test-singleton-userdata'); fs.rmSync(userDataFolder, { force: true, recursive: true }); app.setPath('userData', userDataFolder); const gotTheLock = app.requestSingleInstanceLock(); app.exit(gotTheLock ? 0 : 1);