Lately I’ve been having some connectivity issues on my wifi-connected raspberry pi. I run irssi among other things on it, and when I re-attach to the screen session running on it I’ll be greated by blobs of text like this one:
> Topic set by Zathrus ~tom@redhat/Zathrus [Fri Nov 16 18:15:40 2018] > Home page for #vim: http://vi-improved.org > Channel #vim created Sun Nov 26 07:42:44 2006 > Irssi: Join to #vim was synced in 74 secs
This blob of text is re-printed everytime you (re)join a channel, and with a not so stable wifi connection it’ll very quickly fill up the entire scrollback.
Since I’m never interested in any of these info texts, I tried to just /ignore it all together, but that doesn’t work even with a mask like this:
\*: CRAP CTCPS JOINS PARTS QUITS MODES TOPICS WALLOPS INVITES NICKS DCC DCCMSGS CLIENTNOTICES CLIENTCRAP CLIENTERRORS
It was suggested to me to examine the lines with linebuffer.pl, so I did:
> Topic set by %bgrknight%_ ~grknight@gentoo/developer/grknight %K[%b%_Fri Jan 4 20:55:24 2019%K] [CRAP] > Home page for %R#gentoo%n: http://www.gentoo.org [CRAP] > Channel %R#gentoo%n created Sat Sep 15 05:15:36 2001 [CRAP] > %WIrssi:%_ Join to %_#gentoo%_ was synced in 2%_ secs [NO_ACT CLIENTNOTICES]
To me it seems that the ignore mask SHOULD work, and this is indeed a bug in irssi.
I went ahead and just removed the formats defined in module- formats.c. It works, but kind of annoying having to recompile (remember, this is a pi and it takes forever).
A better solution was to whip up a simple script that stops the text to be printed to the terminal:
Works great and now I’m able to follow up on conversations without having to scroll like crazy whenever I reattach my screen session.