pick-random-wallpaper


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#!/usr/bin/env bash

function hc () { herbstclient "$@"; }

function random-wallpaper() {
    local rootinfo=$(xwininfo -root)
    local width=$(echo $rootinfo | grep 'Width:' | sed 's/.*Width: \([[:digit:]]\+\).*/\1/')
    local height=$(echo $rootinfo | grep 'Height:' | sed 's/.*Height: \([[:digit:]]\+\).*/\1/')

    find ~/pictures/wallpaper -type f \
         \( -wholename "*/${width}x${height}/*" -o -wholename '*/patterns/*' \) \
         -not -name '*.org' \
        | shuf -n 1
}

wallpaper=$(random-wallpaper)

if ! hc attr my_wallpaper >/dev/null 2>&1
then hc new_attr string my_wallpaper
fi

feh --bg-tile "$wallpaper" && hc set_attr my_wallpaper "$wallpaper"