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|
#!/bin/sh
help() {
cat << EOF
$0: Wrapper script to set wallpapers
options:
-d [File] Select a wallpaper or a directory
-h Print this message and exit
-c Remove the current wallpaper
NOTE: default wallpaper directory is ~/.config/wallpapers
EOF
}
err() {
echo "$*" >&2
exit 1
}
run() {
if ! ${1} > /dev/null 2>&1; then
err "${2}"
fi
}
if ! command -v xwallpaper > /dev/null 2>&1; then
err "${0}: xwallpaper must be installed"
fi
if [ $# != 0 ] && [ $# != 1 ] && [ $# != 2 ]; then
err "${0}: Invalid usage
Try '$0 -h' for help."
fi
waldir="${HOME}"/.config/wallpapers
while getopts "hcd:" option; do
case "${option}" in
c)
run "xwallpaper --clear" \
"${0}: Failed to clear wallpaper"
exit 0
;;
d) buf="${OPTARG}" ;;
h) help; exit 0 ;;
*) err "Try '${0} -h' for help" ;;
esac
done
if [ -n "${buf}" ]; then
case $(file -b --mime-type "${buf}") in
image/*) image="${buf}" ;;
inode/directory) waldir="${buf}" ;;
*) err "Couldn't read given file" ;;
esac
fi
if [ -z "${image}" ]; then
image=$(find "${waldir}" -iregex '.*\.jpeg\|.*\.jpng\|.*\.png' 2>/dev/null \
| shuf -n 1 )
fi
run "xwallpaper --zoom ${image}" \
"${0}: Failed to set wallpaper"
echo "${image}"
|
