deleting log file while app is running

[tedparkdev]

hi.
I'm using electron-log for logging, and I've changed the path where the log file is saved using transports.file.resolvePathFn.
However, after deleting the log file while the app is running, no logs are being recorded in the log file anymore.
How can I solve this problem?

[megahertz]

I can try reproducing this issue if you give me a code sample.

[tedparkdev]

Here is my code.
Thanks in advance.

movePagePopupHandler.js

const { ipcMain } = require('electron');
const pageMoveLog = require('electron-log/main').create('pageMove');

function setupMovePagePopupHandler () {
  pageMoveLogConfig();

  ipcMain.on('move-page', (event, data) => {
    pageMoveLog.info(`[move-page] : ${data}`);
  }
}

function pageMoveLogConfig () {
  const pageMoveLogPath = `${global.logFolder}/page_move.log`;

  pageMoveLog.transports.file.level = process.env.LOG_LEVEL;
  pageMoveLog.transports.file.resolvePathFn = () => pageMoveLogPath;
  pageMoveLog.debug(`pageMove log level : ${process.env.LOG_LEVEL} pageMove log path : ${pageMoveLogPath}`);
}

module.exports = {
  setupMovePagePopupHandler
};

main.js

const { app, BrowserWindow } = require('electron');
const { setupMovePagePopupHandler } = require('./movePagePopupHandler');

const createWindow = () => {
  let mainWindow = new BrowserWindow({
    width: 1920,
    height: 1080,
  });
  
  //...		
  mainWindow.loadURL("https://github.com/megahertz/electron-log/discussions/417");
  // call here!!!!!!!!!!!!!!!!!!!!!!!!
  setupMovePagePopupHandler();

};


app.whenReady().then(() => {
  //...
  createWindow();
});

[megahertz]

I don't see the code that deletes logs. Also, since you create a custom logger instance, make sure you do the same in a renderer process using the same logger id.

[tedparkdev]

Thank you for your response.
I did not delete the log file through the source code.
I directly deleted the log file while the app was running and logging.
After that, I expected a new log file to be created and logging to continue in the new file.
However, the log file was not created.
If the log file is deleted while the app is running, will a new log file not be created?

[megahertz]

I modified your code to make it self-contained. In that case, it works fine. When deleting a file while the app is running, the file is successfully re-created.

'use strict';

const { app, BrowserWindow } = require('electron');
const log = require('electron-log/main');
const path = require('path');

const pageMoveLog = log.create('pageMove');

function pageMoveLogConfig () {
  pageMoveLog.transports.file.level = process.env.LOG_LEVEL;
  pageMoveLog.transports.file.resolvePathFn = ({ libraryDefaultDir }) => {
    return path.join(libraryDefaultDir, 'page_move.log');
  }
  pageMoveLog.debug(
    `pageMove log level : ${process.env.LOG_LEVEL} pageMove log path : ` +
    pageMoveLog.transports.file.getFile().path
  );
}

async function createWindow() {
  const win = new BrowserWindow();
  await win.loadURL(`file://${path.join(__dirname, 'index.html')}`);
  pageMoveLogConfig();
  setInterval(() => pageMoveLog.info('test'), 1000);
}

app
  .on('ready', createWindow)
  .on('window-all-closed', () => app.quit());

Be aware that if you remove the whole directory, it won't be re-created when the app is running.

[tedparkdev]

Thank you!