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https://codeberg.org/frosty/dotfiles.git
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88 lines
1.9 KiB
Bash
Executable file
88 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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LOCK_RESOLUTION="1920x1080"
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LOCK_QUALITY=70
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err() {
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echo "$1" >&2
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}
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die() {
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err "${0##*/}: $1"
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exit 1
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}
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usage() {
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if [ -n "$1" ]; then
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err "${0##*/}: $1"
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err
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fi
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err "usage: ${0##*/} [-hqr] [-e RESOLUTION] [-u QUALITY] IMAGE"
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err
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err " -h show this message and exit"
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err " -q suppress output and notifications"
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err " -r restore the previous image as your wallpaper"
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err " -e <RESOLUTION> override lock screen RESOLUTION"
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err " -u <QUALITY> override lock screen QUALITY"
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exit 0
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}
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convert_lock() {
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magick "$1" -resize "$LOCK_RESOLUTION"^ -gravity center -extent "$LOCK_RESOLUTION" -quality "$LOCK_QUALITY" "$XDG_CACHE_HOME/lock.png"
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}
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restore() {
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[ -f "$XDG_DATA_HOME/wallpaper" ] || die "previous image not found"
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previous="$(readlink -f "$XDG_DATA_HOME/wallpaper")"
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case "${previous##*.}" in
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png | jpg | jpeg) ;;
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*) die "$previous: unsupported file type" ;;
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esac
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cmp -s "$previous" "$XDG_CACHE_HOME/lock.png" || convert_lock "$previous" &
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xwallpaper --zoom "$XDG_DATA_HOME/wallpaper"
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exit 0
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}
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while getopts ":hqre:u:" opt; do
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case $opt in
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h) usage ;;
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q) QUIET=1 ;;
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r) restore ;;
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e) LOCK_RESOLUTION=$OPTARG ;;
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u) LOCK_QUALITY=$OPTARG ;;
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\?) usage "invalid option -- '$OPTARG'" ;;
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:) usage "option requires an argument -- '$OPTARG'" ;;
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esac
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done
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shift $((OPTIND - 1))
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if [ "$1" = "-" ]; then
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while read -r line; do
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image=$line
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done
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else
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image=$1
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fi
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[ -n "$image" ] || usage "IMAGE was not provided"
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[ -d "$image" ] && die "$image: is a directory"
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[ -f "$image" ] || die "$image: no such file"
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case "${image##*.}" in
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png | jpg | jpeg) ;;
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*) die "$image: unsupported file type" ;;
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esac
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cmp -s "$image" "$XDG_CACHE_HOME/lock.png" || convert_lock "$image" &
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ln -sf "$image" "$XDG_DATA_HOME/wallpaper"
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xwallpaper --zoom "$XDG_DATA_HOME/wallpaper"
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[ -z "$QUIET" ] && notify-send -u low "System" "Wallpaper set to <b>${image##*/}</b>."
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