dwm/xsetroot.sh

#! /bin/bash

SEP="|"

# If we're in a cron job, we need to set up an environment,
# and if we're not in a cron job, the variable $- will contain the letter "i".
[[ $- == *i* ]] || {
    PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:$HOME/bin
}

convert_percent_to_bar() {
    nboxes=10
    filled=$(echo "($1+5)/$nboxes" | bc)
    unfilled=$(echo $nboxes-$filled | bc)
    echo -n $(yes ■ | head -$filled | tr '\n' ' ' | sed 's/ //g')
    echo -n $(yes □ | head -$unfilled | tr '\n' ' ' | sed 's/ //g')
}

register=()
xsetrootd="$HOME"/xsetroot.d
for f in "${xsetrootd}"/*; do
    . "$f"
done

while true; do
    nfuns=${#register[*]}
    statusline=""
    if (( nfuns != 0 )); then
        statusline="$(${register[0]})"
    fi
    if (( nfuns > 1 )); then
        for fn in ${register[@]/${register[0]}}; do
            statusline+="${SEP}$($fn)"
        done
    fi
    xsetroot -name "$statusline"
    sleep 1
done