Add base shell script, config file & current file

current_wallpaper.txt

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+

paperchanger.conf.sh

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+# This is the configuration file used by the paperchanger program
+
+default_directory=/win-f/Daten/Wallpaper/

paperchanger.sh

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+#!/usr/bin/env bash
+
+# Simple CLI to make wallpaper changes with xwallpaper more comfortable
+
+read -r current_file_path < current_wallpaper.txt
+
+source $(dirname $0)/paperchanger.conf.sh
+
+function _help() {
+	echo ""
+	echo "A tool to help change the wallpaper in a more comfortable way."
+	echo "Uses xwallpaper to load the specified wallpaper."
+	echo ""
+	echo "Usage: paperchanger [OPTION] [PATH]"
+	printf "  %-45s\t%-54s\n" \
+		"-h,  --help, help" "Print this help." \
+		"-d,  --display, display" "Display the specified wallpaper." \
+		"-s,  --set, set" "Set the wallpaper with the path as parameter." \
+		"-S,  --Set, Set" "Set the wallpaper with a graphical file chooser." \
+		"-ds, --display-and-set, display-and-set" "Set the wallpaper with an path as parameter AND display the specified wallpaper." \
+		"-dS, --display-and-Set, display-and-Set" "Set the wallpaper with a graphical file chooser AND display the specified wallpaper." \
+        "-p,  --path, path" "Set the path of the default directory as parameter, where the file chooser to select a wallpaper is initially opened." \
+        "-P,  --Path, Path" "Set the path of the default directory with a graphical file chooser, where the file chooser to select a file chooser is initially opened." \	
+}
+
+function _display() {
+	xwallpaper --zoom $current_file_path 
+}
+
+function _set() {
+	current_file_path="$1"
+	echo "$current_file_path" > current_wallpaper.txt
+}
+
+function _change_config_path() {
+	sed -i "s/^default_directory=.*\$/default_directory=${1//\//\\/}/" paperchanger.conf.sh
+}
+
+case "$#" in
+	0)
+		_help
+		;;
+	1)
+		case "$1" in
+			-h | --help | help)
+				_help
+				;;
+			-d | --display | display)
+				if [[ "$current_file_path" == "" ]]; then
+					echo "No wallpaper is selected. Please use <paperchanger -s> or <paperchanger -S> first!"
+					exit 1
+				else
+					_display
+				fi
+				;;
+			-S | --Set | Set)
+				if [[ "$default_directory" == "" ]]; then
+					_set "$(zenity --file-selection)"
+				else
+					_set "$(zenity --file-selection --filename=$default_directory)"
+				fi
+				;;
+			-dS | --display-and-Set | display-and-Set)
+				if [[ "$default_directory" == "" ]]; then
+					_set "$(zenity --file-selection)"
+				else
+					_set "$(zenity --file-selection --filename=$default_directory)"
+				fi
+				_display
+				;;
+			-P | --Path | Path)
+				_change_config_path "$(zenity --file-selection --directory)/"
+				;;
+			*)
+				echo "Input Error"
+				exit 1
+				;;
+		esac
+		;;
+	2) 	if [[ "$1" == "-s" || "$1" == "--set" || "$1" == "set" ]]; then
+			_set "$2"
+		elif [[ "$1" == "-ds" || "$1" == "--display-and-set" || "$1" == "display-and-set" ]]; then
+			_set "$2"
+			_display
+		elif [[ "$1" == "-p" || "$1" == "--path" || "$1" == "path" ]]; then
+			_change_config_path "$2"
+		else
+			echo "Input Error"
+			exit 1
+		fi
+		;;
+	*)
+		echo "Input error, too many parameters."
+		echo "please use paperchanger -h or the man page to get help."
+		exit 1
+		;;
+esac