How to use set-config! to output to a file

[chrismurrph]

A few people don't know how to log to a file. Here's my SO question:

http://stackoverflow.com/questions/36588781/timbre-set-config-has-changed-arity-thus-dont-know-how-to-use-it-to-output-s

Here's another identical one (so mine might not last):

http://stackoverflow.com/questions/35639153/clojure-timbre-4-0-set-config

[ptaoussanis]

Hi Chris,

Usage of the spit (file) appender is documented in the README at https://github.com/ptaoussanis/timbre#file-appender

Hope that helps, cheers!

[chrismurrph]

Hi Peter,
Thanks. I'll work it out and post the answer to SO.

[ptaoussanis]

Sorry Chris, not sure I follow what needs working out?

The README gives an example that you should be able to just copy+paste, no? Or do you specifically want to use the set-config!?

[chrismurrph]

True - it was copy/paste: it works. The thing is to me 'appenders' seemed
like something advanced. Hence I skipped over them in the documentation and
assumed something would need to be 'worked out' in order to use them.

On 13 April 2016 at 15:19, Peter Taoussanis [email protected]
wrote:

Sorry Chris, not sure I follow what needs working out?

The README gives an example that you should be able to just copy+paste,
no? Or do you specifically want to use the set-config!?

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#161 (comment)

[ptaoussanis]

True - it was copy/paste: it works.

Great, thanks for the confirmation.

The thing is to me 'appenders' seemed
like something advanced. Hence I skipped over them in the documentation and
assumed something would need to be worked out to use them.

Understood, no problem.

Fwiw, there's no magic going on underneath. Timbre's config's just one big map as in https://github.com/ptaoussanis/timbre#configuration. You can modify the map using Clojure's standard utils like assoc, merge, assoc-in, etc.

Cheers :-)

[chrismurrph]

Something I just noticed is that the messages are now going to the file and to the console, whereas in the legacy example I'm pretty sure the output was going to just the file. So next part of the question is how to turn output to console/REPL off.

[ptaoussanis]

The stdout appender is located at [:appenders :println] and is enabled by default.

(timbre/merge-config!
  {:appenders
   {:println nil ; Remove println appender
    :spit (appenders/spit-appender {:fname "/path/my-file.log"})}})

Will do the trick

[chrismurrph]

That doesn't work for me.

[ptaoussanis]

You might need to provide some more details than "that doesn't work".

Unfortunately going to need to sign off on this issue, have my hands a bit full atm. Would encourage you to check out the docs, otherwise someone else on here should hopefully be able to assist.

Best of luck, cheers! :-)

[chrismurrph]

Adding the mapentry :println nil to the config hash map has no effect for me. This means that output goes to the console as well as to the file. I expected the output to go only to the file.

[chrismurrph]

Thanks for confirming andreasthoelke.