dotfiles/bin/tmux-session-list

#!/usr/bin/env bash

ANY_SESSION_PREFIX="#[bg=colour18]#[fg=colour7]"
ANY_SESSION_SUFFIX="#[bg=default]#[fg=default] "
CUR_SESSION_PREFIX="#[bg=colour4]#[fg=colour0]"
CUR_SESSION_SUFFIX="${ANY_SESSION_SUFFIX}"
# TODO: implement urgent session highlighting
# URG_SESSION_SUFFIX="${ANY_SESSION_SUFFIX}"
# URG_SESSION_PREFIX="#[bg=colour1]#[fg=colour0]"

CUR_TMUX_SESSION="$1"
if [ -z "$1" ]; then
	CUR_TMUX_SESSION="$(tmux display-message -p '#S')"
fi
export CUR_TMUX_SESSION

TMUX_SESSION_LIST="$(tmux list-sessions | awk \
	-v curSesh="${CUR_TMUX_SESSION}" \
	-v aspre="${ANY_SESSION_PREFIX}" \
	-v assuf="${ANY_SESSION_SUFFIX}" \
	-v cspre="${CUR_SESSION_PREFIX}" \
	-v cssuf="${CUR_SESSION_SUFFIX}" \
'{s=substr($1,0,length($1)-1);
if(s==curSesh){
	s=cspre" "s" "cssuf
}else{
	s=aspre" "s" "assuf
}printf s}')"

# shellcheck disable=SC2001
echo "${TMUX_SESSION_LIST//\s*$/}" | sed -e 's/\s*$//'