Random background for i3lock

centralize.zsh

#!/bin/zsh


newname=$(echo $1 | awk -F'.' '{print $1}').png  # i3lock only accepts pngs
resolution=$(xrandr | fgrep '*' | awk '{print $1}')

# if the image is too large, run the folloowing line first and then run the script again on temp.jpg:
# convert $1 -gravity Center -adaptive-resize $resolution -background black temp.jpg

convert $1 -background black -gravity center -extent $resolution -background black $newname

random_bg_lock.zsh

#!/bin/zsh
# map this script on your i3 config.

# change as needed
DEFAULT_IMGS="/home/etandel/Documents/images/pngs"

if [[ -z $1 ]] ; then
    img_dir=$DEFAULT_IMGS
else
    img_dir=$1
fi;


randfile=$(ls $img_dir | sort -R | head -n1)
i3lock --color=000000 -i $img_dir/$randfile