Statusbar script for lemonboy's bar

shinbar.sh

#!/usr/bin/env bash

wm=monsterwm
ff="/tmp/$RANDOM.monsterwm.fifo"

tags=('\ue010' '\ue011' '\ue012' '\ue013' '\ue062')
layouts=('\ue002' '\ue001' '\ue003' '\ue005' '\ue006') 

bs="\\\\u6\\\\b6\\\\f8 "
br=" \\\\ur\\\\br\\\\fr"

[[ -p $ff ]] || mkfifo -m 600 "$ff"

function statusbar {
    # Date
    date=$(date +"%H:%M %Y-%m-%d")
    # Memory usage
    mem=$(free -m | awk '/buffers\/cache/ {print $3 MB}')
    # Volume
    vol=$(amixer get Master | egrep -o '[0-9]{1,3}%' | sed -e 's/%//')
    mut=$(amixer get Master | grep "\[on\]")
    ismute="\\\\f3"
    [ -z $mut ] && ismute="\\\\f2"
    # Music status
    music="$(mpc current -f "%artist% - %title%")"
    if [ -z "$music" ]; then music="stopped" mstat="\ue057"
    else
    mstat="$(mpc | sed -rn '2s/\[([[:alpha:]]+)].*/\1/p')"
    [ "$mstat" == "paused" ] && mstat="\ue059" || mstat="\ue0aa"
    fi
    # HDD
    root=$(df -h|awk '/root/ {print $5}')
    home=$(df -h|awk '/home/ {print $5}')

    echo "\\\\c $bs\ue04d$br \\\\f6$mstat\\\\fr $music \\\\r$bs\ue05d$br $ismute$vol $bs\ue09f$br $root $bs\ue0b2$br $home $bs\ue020$br $mem \\\\b2\\\\u2 \\\\f6\ue015\\\\f3 $date "
}

while read -t 1 -r wmout || true; do
    if [[ $wmout =~ ^(([[:digit:]]+:)+[[:digit:]]+ ?)+$ ]]; then
        read -ra desktops <<< "$wmout"

        tmp=
        for desktop in "${desktops[@]}"; do
            IFS=':' read -r d w m c u <<< "$desktop"
            # Tags labels
            label=${tags[$d]}
            # Current desktop color and enclosing char (yes/no)
            ((c)) && fg="2" bg="3" lc="\\\\u6 " rc=" \\\\ur" && layout=${layouts[$m]} || fg="1" bg="0" lc=" " rc=" "
            # Has windows ?
            ((w)) && ((! c)) && fg="3" lc="\\\\ur " rc=" \\\\ur"
            # Urgent windows ?
            ((u)) && fg="3" bg="4" lc="\\\\u3 " rc=" \\\\ur"

            tmp+="\\\\f$fg\\\\b$bg$lc$label$rc\\\\fr\\\\br"
        done
        # Merge the clients indications and the tile mode
        tmp+=" \\\\u2\\\\b2\\\\f3 $layout$br"
    fi
    echo -e "$tmp $(statusbar)" | tee /tmp/barout
done < "$ff" | bar &

#while :; do "$wm" || break; done | tee -a "$ff"
$wm > "$ff"

rm $ff