Active/current log file with no date postfix? about winston-daily-rotate-file

[zoell]

Is it possible to add this feature so the current log file is alone without the date and it will rotate on date also?

So like:
current: the_log_file.log
yesterday: the_log_file.log..2017-02-07
etc?

[mattberther]

I believe you should be able to set date format to '.log'.

[mattberther]

@bitsofinfo to close the loop on this: the following code should get you what you're requesting:

var fileTransportOpts = {
  filename: './server',
  datePattern: '.log'
};

var logger = new (winston.Logger)({
  transports: [
    new (winston.transports.DailyRotateFile)(fileTransportOpts)
  ]
});

logger.log('info', 'test message');

The last line will create a file called server.log in the current folder. Please re-open if this doesn't meet your needs.

[Rychu-Pawel]

datePatern has to be inside square brackets these days and without the dot so the correct workaround is now

var fileTransportOpts = {
  filename: './server',
  datePattern: '[log]'
};

[bitsofinfo]

That results in: overwatch-sample-1.log..log

Setting to just log = overwatch-sample-1.log.log

Will this still properly do rotation with this setting?

[mattberther]

Please provide the code you're using. Im unable to reproduce. The sample I posted above creates appropriately named log files. Make sure that you're specifying filename properly. In your case, it looks like you want filename: 'overwatch-sample' and datePattern: '.log'.

[bitsofinfo]

Yeah when I did that the name is as expected, my other question is still the main question:

Will this still properly do rotation with this setting?

[mattberther]

I would expect it to rotate, assuming you have maxsize set. Obviously, it wouldn't rotate on date. Please let me know if you see different behavior.

[bitsofinfo]

Ok, if it won't do the date based rotation, not much point in using it. I really think this should support the option of the current log file having no suffix and only older log files having the date.

[sumitjainn]

Please reopen the issue.. it would be really useful if it supports both: current file without date suffix and date based log rotation.

[mattberther]

@sumitjainn the transport supports date-based log rotation. For the other piece of your request, follow #23.

[shivang2joshi]

@sumitjainn you can add two separate transports. one logs into current.log, second with DailyRotateFile support. Add some memory limit for current.log

[galamo]

Hi
is this issue solved? is there a configuration for winston to apply this behaviour ?

So like:
current: the_log_file.log
yesterday: the_log_file.log..2017-02-07
etc?

[mattberther]

Try the configuration at #310, @galamo. The logs files will always have a timestamp on them, as defined by the datePattern option. However, if you need a tailable file, you can use the symlink options described in that issue (and in the README).