prep-appimage

#!/bin/bash

APPNAME=""
APPVERSION=""
APPDIR=""
BINARIES=""
NBINARIES=0
ICONDIR="icon"

usage()
{
	echo "Usage: $0 -a APPNAME -v APPVERSION [-d DESKTOP file] [-m META file] [-i ICONDIR]"
	echo "       DESKTOP file defaults to ci/appimage/com.projectaten.APPNAME.desktop"
	echo "          META file defaults to ci/appimage/com.projectaten.APPNAME.appdata.xml"
	echo "       ICONDIR to search defaults to icon/"
	exit 1
}

# Parse options
while getopts ":a:v:d:m:i:b:" opt
do
	case "${opt}" in
		a)
			APPNAME=${OPTARG}
			echo "Application name set to '${APPNAME}'"
			;;
		b)
			BINARIES[NBINARIES]=${OPTARG}
			echo "Added binary '${BINARIES[NBINARIES]} to the list of targets"
			let NBINARIES=NBINARIES+1
			;;
		v)
			APPVERSION=${OPTARG}
			echo "Application version set to '${APPVERSION}'"
			;;
		d)
			DESKTOP=${OPTARG}
			echo "Desktop file is '${DESKTOP}'"
			;;
		m)
			META=${OPTARG}
			echo "Desktop metafile is '${META}'"
			;;
		i)
			ICONDIR=${OPTARG}
			echo "Directory to search for icons is '${ICONDIR}'"
			;;
		*)
			usage
			;;
	esac
done

# Check for valid arguments
if [ "x$APPNAME" = "x" ]; then echo "Error: A valid APPNAME must be provided."; exit 1; fi
if [ "x$APPVERSION" = "x" ]; then echo "Error: A valid APPVERSION must be provided."; exit 1; fi
if [ "${NBINARIES}" -eq "0" ]; then echo "Error: At least one binary must be specified."; exit 1; fi

# Set dependent variables
APPDIR=${APPNAME}-${APPVERSION}.AppDir
if [ "x$DESKTOP" = "x" ]; then DESKTOP="ci/appimage/com.projectaten.${APPNAME}.desktop"; fi
if [ "x$META" = "x" ]; then META="ci/appimage/com.projectaten.${APPNAME}.appdata.xml"; fi

# Report settings
echo "APPDIR=${APPDIR}"
echo "DESKTOP=${DESKTOP}"
echo "META=${META}"

# Enable erroring
set -e

# Create basic AppDir structure
rm -rf ${APPDIR}
mkdir -p ${APPDIR}/usr/bin
mkdir -p ${APPDIR}/usr/lib
mkdir -p ${APPDIR}/usr/share/applications
mkdir -p ${APPDIR}/usr/share/metainfo
mkdir -p ${APPDIR}/usr/share/icons/hicolor

# Copy in binaries
echo -e "\nCopying binaries...\n"
for b in ${BINARIES[@]}
do
	if [ ! -e $b ]
	then
		echo "Error: Binary '$b' not found."
		exit 1
	fi
	cp -v $b ${APPDIR}/usr/bin
done

# Copy desktop file
echo -e "\nCopying desktop file...\n"
if [ ! -e $DESKTOP ]
then
	echo "Error: Desktop file '$DESKTOP' does not exist."
	exit 1
fi
cp -v $DESKTOP ${APPDIR}/usr/share/applications

# Copy metainfo file
echo -e "\nCopying desktop metafile...\n"
if [ ! -e $META ]
then
	echo "Error: Metainfo file '$META' does not exist."
	exit 1
fi
cp -v $META ${APPDIR}/usr/share/metainfo

# Search for and copy icons
echo -e "\nCopying icons...\n"
NFOUND=0
for i in 64 128 256 512
do 
	icon=${ICONDIR}/icon-${i}x${i}.png
	if [ -e "${icon}" ]
	then
		mkdir -p ${APPDIR}/usr/share/icons/hicolor/${i}x${i}
		cp -v ${icon} ${APPDIR}/usr/share/icons/hicolor/${i}x${i}/${APPNAME}.png
		let NFOUND=NFOUND+1
	fi
done

# If no specific icons were found, try the default name
if [ "${NFOUND}" -eq "0" ]
then
	icon="${ICONDIR}/${APPNAME}.png"
	if [ -e "${icon}" ]
	then
		cp -v ${icon} ${APPDIR}
	fi
fi