Winston Transport File - zippedArchive option doesn't work correctly

If you use the following transport file:

new (winston.transports.File)({
          level: 'silly',
          filename: './test.log',
          maxsize: 500000,
          maxFiles: 4,
          format: format.combine(
            format.splat(),
            format.label({ label: 'test' }),
            format.timestamp(),
            format.prettyPrint(),
            format.printf( log => {
              return '[ ' + log.timestamp + ' ][ ' + log.level + ' ][ '+ log.label + ' ] ' + log.message;
            })
          ), tailable: true,
          zippedArchive: true,
          exitOnError: false
        }) );

The resulting “test.log” is zipped.

This is wrong since the documentation tells that:

zippedArchive: If true, all log files but the current one will be zipped.

[mattvasc]

@DABH I have the same issue too, I also upgraded my Winston version to latest version (3.2.1) but still no success. when the zippedArchive is true , the logger only rename the extension of file so the zip file is corrupted.

Still happening on 3.3.3 😔

[KingRial]

@masoudltf: you are right, the latest winston (3.1.0) doesn’t zip any file but only adds the .gz extension. Infact, it seems there is no method which inflates the logs, only the Zlib instance