add date for ouput filename about snoopy

[xleng2019]

I've known that. I'm going to use logrotate. Thanks.

[bostjan]

Hey @xleng2019, no, you're not doing it wrong - it is just (currently) not supported.

Question: why are you trying to implement the log rotation with Snoopy itself? Why not just use existing tools (i.e. logrotate) that already rotate other logs on your system? Just curious, and describing actual real word use cases usually helps with decisions what to implement in the future.

PS: Technically, to work around this right now, you could run a socat UNIX-RECV:/var/run/snoopy.sock STDOUT | chronolog /var/log/snoopy_%Y-%m-%d in the background, and use output = socket:/var/run/snoopy.sock in your snoopy.ini to achieve the desired result. A bit convoluted approach, but it should work.

PPS: Where did you get the idea to try the $(...) syntax from? It's not used anywhere within Snoopy right now. I would kinda understand you trying to use the %{...} syntax, since that is used in the message_format setting already (and in the syslog_ident setting in the upcoming version), but $(...) is definitely nowhere to be seen. :)

PPPS: Shouldn't be too hard to implement, though, and it's an interesting suggestion. Thanks.

[bostjan]

Hey @xleng2019, you're in luck - some unrelated refactoring made implementing this feature very easy ;)

It is currently already available in master, and it will be released with Snoopy v2.5.0 soon. Enjoy.