tmux_goto

#!/bin/bash

if [ "$1" == "-h" -o "$1" == "--help" ]
then
    cat <<END >&2
Switch to the tmux session matching REGEX.
If no REGEX is provided, all sessions are listed.
If there are more than one options, present a menu.
USAGE: $(basename $0) [REGEX]
END
    exit 1
fi

IFS='
'
SEARCH="$1"
if [ -z "$SEARCH" ]
then
    RES=$(tmux list-windows -a) || {
        echo "tmux list-windows failed or there were no windows matching '$SEARCH'" >&2
        exit 2
    }
else
    RES=$(tmux list-windows -a | grep -i "$SEARCH") || {
        echo "tmux list-windows failed or there were no windows matching '$SEARCH'" >&2
        exit 2
    }
fi
NRES=$(echo "$RES" | wc -l)

function menu() {
    n=0
    for r in $RES
    do
        let n=$[ $n + 1 ]
        echo "$n.  $r"
    done
    read -p "Select window number: " SEL
}

if [ $NRES -eq 1 ]
then
    TARGET=$(echo "$RES" | cut -d: -f1,2)
else
    menu
    # TODO: sanity-check sel, re-run menu if dumb
    [ -z "$SEL" ] && {
        echo "No selection made. Exiting."
        exit
    }
    TARGET=$(echo "$RES" | head -n+$SEL | tail -n1 | cut -d: -f1,2)
fi

[ -n "$TARGET" ] && tmux switch-client -t $TARGET