linuxdeploy-plugin-installdesktop

#!/bin/bash
#
# linuxdeploy-plugin-installdesktop.sh
#
# Linuxdeploy plugin to add an --install-menu / --install-desktop
# option to AppImage files which when run, install a desktop and 
# icon file into the desktop menu infrastructure.
# When the AppImage file is run as root, the menu files are installed
# in /usr/share.  Otherwise, they are stored in the user's .config/share
# folder.
#

# exit whenever a command called in this script fails
set -e

APPDIR=""
HOOKFILE="linuxdeploy-plugin-installdesktop-hook.sh"

show_usage() {
    echo "Usage: bash $0 --appdir <AppDir>"
}

while [ "$1" != "" ]; do
    case "$1" in
        --plugin-api-version)
            echo "0"
            exit 0
            ;;
        --appdir)
            APPDIR="$2"
            shift
            shift
            ;;
        *)
            echo "Invalid argument: $1"
            echo
            show_usage
            exit 2
    esac
done

if [ -z "${APPDIR}" ]; then
	show_usage
	exit 2
fi

#
# DEFINITION OF APPHOOK SCRIPT
#

set -x
mkdir -p "$APPDIR/apprun-hooks"
cat > "$APPDIR/apprun-hooks/$HOOKFILE" <<\EOF
#!/bin/bash
#
# installdesktop`
#

if [ "$1" == "--help" ]; then
	echo "${APPIMAGE} --install-desktop    - Installs desktop menu files (in /usr/share if run as root)"
fi

if [ "$1" == "--install-menu" ] || [ "$1" == "--install-desktop" ]; then

	if [ -z "${APPIMAGE}" ]; then
		echo "APPIMAGE variable not set"
		exit
	fi

	if [ -z "${APPDIR}" ]; then
		echo "APPDIR variable not set"
		exit
	fi

	if [ -z "${HOME}" ]; then
		echo "HOME variable not set"
		exit
	fi

	WHOAMI=`whoami`

	if [ "${WHOAMI}" == "root" ]; then
		TARGET="/usr/share"
	else
		TARGET="${HOME}/.local/share"
	fi

	DESKTOP=${APPDIR}/*.desktop

	if [ ! -f ${DESKTOP} ]; then
		echo ".desktop file expected in ${APPDIR}"
		exit
	fi

        if [ -f ${APPDIR}/*.png ];  then
                ICON=${APPDIR}/*.png
        fi
        if [ -f ${APPDIR}/*.svg ]; then
                ICON=${APPDIR}/*.svg
        fi
        if [ -z ${ICON} ]; then
                echo "png or svg icon not found in ${APPDIR}"
                exit
        fi

	ICONFN="`echo ${ICON} | rev | cut -d/ -f1 | rev`"
	DESKTOPFN="`echo ${DESKTOP} | rev | cut -d/ -f1 | rev`"

	# Parse and Copy Desktop File
	echo "Copying/Updating desktop file in ${TARGET}/applications/${DESKTOPFN}"

	mkdir -p "${TARGET}/applications"
	cat "${APPDIR}/${DESKTOPFN}" | sed -e "s\\^exec=.*$\\Exec=${APPIMAGE}\\gi" > "${TARGET}/applications/${DESKTOPFN}"

	# Copy the Icon File
	if [ ! -f "${TARGET}/icons/${ICONFN}" ]; then
		echo "Copying ICON to ${TARGET}/icons/${ICONFN}"
		mkdir -p "${TARGET}/icons"
		cp "${APPDIR}/${ICONFN}" "${TARGET}/icons"
	fi

	# Update complete, so finish execution
	exit
fi

EOF
#
# End of apprun-hooks scropt
#

echo "hook script installed in ${APPDIR}/apprun-hooks/${HOOKFILE}"
exit 0