How do you change the path or filename of the renderer log?

[petestarkey]

I can easily set the path or filename of the main.log using this in main.ts:

log.transports.file.resolvePath = (variables) => {
  return path.join(variables.electronDefaultDir + "whatever", variables.fileName);
}

But how do I do the same for the renderer process please?

[megahertz]

Run the same code in a renderer process. In the current version, it's configured separately

[petestarkey]

Thanks @megahertz. But if I run that same code in the renderer, I get this:

TypeError Cannot read properties of undefined (reading 'file').

Same error if I use window.log.transports.file.resolvePath... too.

[megahertz]

Could you post the stacktrace?

[petestarkey]

Call Stack
 App
  main.0e4c95e59bcbca7f1e68.hot-update.js:71:39
 renderWithHooks
  renderer.dev.js:22796:18
 updateFunctionComponent
  renderer.dev.js:25167:20
 beginWork
  renderer.dev.js:26874:16
 HTMLUnknownElement.callCallback
  renderer.dev.js:11756:14
 Object.invokeGuardedCallbackDev
  renderer.dev.js:11805:16
 invokeGuardedCallback
  renderer.dev.js:11867:31
 beginWork$1
  renderer.dev.js:31770:7
 performUnitOfWork
  renderer.dev.js:30582:12
 workLoopSync
  renderer.dev.js:30513:5

[megahertz]

Nothing helpful in the stack. Unfortunately, there's no way to find the actual reason in that case, since it depends on webContents and bundler settings. As a workaround for such a case, it's better to use logger in the main process only and use ipc to send log messages from renderer. I have plans to fix that in the next major release, but I have no exact dates for that.

[petestarkey]

Nothing helpful in the stack. Unfortunately, there's no way to find the actual reason in that case, since it depends on webContents and bundler settings. As a workaround for such a case, it's better to use logger in the main process only and use ipc to send log messages from renderer. I have plans to fix that in the next major release, but I have no exact dates for that.

Thanks @megahertz. Marking this as the answer. I used IPC to send messages through to main process as you suggest and this works well. Also means you get just one log file which is a bit neater.