scwrypts v3 refactor

scwrypts/desktop/i3/set-background

@@ -0,0 +1,27 @@
+#!/bin/zsh
+DEPENDENCIES+=()
+REQUIRED_ENV+=(
+	DESKTOP__WALLPAPER_PATH
+)
+
+CHECK_ENVIRONMENT
+#####################################################################
+
+
+[ ! -d $WALLPAPER_PATH ] \
+	&& FAIL 1 "no such directory for DESKTOP__WALLPAPER_PATH='$DESKTOP__WALLPAPER_PATH'"
+
+SELECTION="$1"
+[ ! $SELECTION ] && SELECTION=random
+
+case $SELECTION in 
+	random )
+		feh --recursive --randomize --bg-fill $WALLPAPER_PATH
+		;;
+	* )
+		[ ! -f $DESKTOP__WALLPAPER_PATH/$SELECTION ] \
+			&& FAIL 2 "no such wallpaper '$SELECTION' in wallpaper path"
+
+		feh --bg-fill $DESKTOP__WALLPAPER_PATH/$SELECTION
+		;;
+esac