Irssi and tmux-notify

tmux-notify.pl

use strict;
use warnings;
use vars qw($VERSION %IRSSI);

use Irssi;

# Script info
$VERSION = '0.1';
%IRSSI = (
    authors     => 'Bas Stottelaar',
    contact     => '[email protected]',
    name        => 'tmux-notify',
    description => 'Notify tmux of IRC activity',
    license     => 'MIT',
);

# Handlers
sub sig_notify
{
    system('/usr/local/bin/tmux-notify');
}

# Register handlers
Irssi::signal_add('message public', \&sig_notify);
Irssi::signal_add('message private', \&sig_notify);
Irssi::signal_add('message invite', \&sig_notify);
Irssi::signal_add('message kick', \&sig_notify);

tmux-notify.sh

#!/bin/bash

# Run only in tmux
if [ "$TMUX_PANE" == "" ]
then
        exit 0
fi

# Retrieve information about tmux
WINDOW=`/usr/bin/tmux display -pt $TMUX_PANE '#S:#I' 2> /dev/null`
IS_WINDOW_ACTIVE=`/usr/bin/tmux display -pt $TMUX_PANE '#{window_active}' 2> /dev/null`

if [ "$IS_WINDOW_ACTIVE" == "0" ] && [ "$WINDOW" != "" ]
then
    # Enable visual activity
    /usr/bin/tmux set-window-option -t $WINDOW monitor-activity on > /dev/null

    # Print nothing, but this triggers the activity monitor. Requires bash to not fuck up the output.
    echo -ne "\0"

    # Alternative, but not tested
    # /usr/bin/tmux send-keys -t $WINDOW Space C-H

    # Disable visual activity again
    /usr/bin/tmux set-window-option -t $WINDOW monitor-activity off > /dev/null
fi

Try these steps:

1. move tmux-notify.sh to /usr/local/bin/: mv tmux-notify.sh /usr/local/bin/tmux-notify
2. run chmod +x /usr/local/bin/tmux-notify
3. mkdir -p ~/.irssi/scripts/autorun/
4. mv tmux-notify.pl ~/.irssi/scripts/
5. ln -s ~/.irssi/scripts/tmux-notify.pl ~/.irssi/scripts/autorun/
6. restart irssi

To make sure that your this script loaded, run this command on irssi: /script list

irssi faq: https://irssi.org/documentation/faq/