extractor

#!/bin/bash

SCRIPT=$(readlink -f "$0")
SCRIPT_PATH=$(dirname "$SCRIPT")
SAMPLE_DESKTOP_FILE="$SCRIPT_PATH/desktopSample.desktop"
DESKTOP_FILES_PATH="$HOME/.local/share/applications/"
FILE_NAME=$1
DESTINATION=$2

check_file_name() {
	if [ -z "$FILE_NAME" ] 
	then 
		echo "Error: please select a file to extract"
		exit 1
	fi
}

check_destination() {
	if [ -z "$DESTINATION" ] 
	then
		DESTINATION="/opt"
	fi
}

extract_file() {
	echo "Extracting $FILE_NAME to $DESTINATION..."
	cd $DESTINATION
	sudo tar xf $FILE_NAME
	APPDIRECTORY=`tar -tf $FILE_NAME | head -1 | cut -f1 -d"/"`
	echo "Finished extraction in $DESTINATION/$APPDIRECTORY"
}

copy_desktop_file () {
	cp $SAMPLE_DESKTOP_FILE $HOME/.local/share/applications/$APPDIRECTORY.desktop
	echo "Created desktop file in $DESKTOP_FILES_PATH"
}

search_starting_script () {
	echo "`ls $APPDIRECTORY/bin`"
	read -p "Pick the executable file to use for the desktop file: " EXECUTABLE
}

search_icons () {
	echo "`find $APPDIRECTORY -type f \( -iname \*.jpg -o -iname \*.png -o -iname \*.svg \)`"
	read -p "Pick the icon path to use for the desktop file: " ICON
}

replace_desktop_variables () {
	sed -i "s#"{appName}"#"$APPDIRECTORY"#g" $HOME/.local/share/applications/$APPDIRECTORY.desktop
	sed -i "s#"{executableDir}"#"$EXECUTABLELOC"#g" $HOME/.local/share/applications/$APPDIRECTORY.desktop
	sed -i "s#"{iconPath}"#"$ICONLOC"#g" $HOME/.local/share/applications/$APPDIRECTORY.desktop
}

create_desktop_file() {
	echo "Creating desktop file..."
	copy_desktop_file
	search_starting_script
	search_icons
	EXECUTABLELOC="$DESTINATION/$APPDIRECTORY/bin/$EXECUTABLE"
	ICONLOC="$DESTINATION/$ICON"
	replace_desktop_variables
}

check_file_name
FILE_NAME="`pwd`/$1"
check_destination
extract_file
create_desktop_file
echo "Done. Bye."