added standalone build.sh for manually building AppImages

dist/appimage/build.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+BASEDIR=$(dirname $0)/../..
+REVISION_NO=`git rev-list --count HEAD`
+
+# check preconditions
+if [ -z "${JAVA_HOME}" ]; then echo "JAVA_HOME not set. Run using JAVA_HOME=/path/to/jdk ./build.sh"; exit 1; fi
+command -v mvn >/dev/null 2>&1 || { echo >&2 "mvn not found."; exit 1; }
+command -v curl >/dev/null 2>&1 || { echo >&2 "curl not found."; exit 1; }
+
+# compile
+mvn -B -f${BASEDIR}/pom.xml clean package -DskipTests -Plinux
+
+# prepare AppDir
+mkdir ${BASEDIR}/target/Cryptomator.AppDir
+mv ${BASEDIR}/target/libs ${BASEDIR}/target/Cryptomator.AppDir
+mv ${BASEDIR}/target/mods ${BASEDIR}/target/Cryptomator.AppDir
+mv ${BASEDIR}/LICENSE.txt ${BASEDIR}/target/Cryptomator.AppDir
+cd ${BASEDIR}/target/Cryptomator.AppDir
+
+# add runtime
+${JAVA_HOME}/bin/jlink
+          --output runtime
+          --module-path "${JAVA_HOME}/jmods"
+          --add-modules java.base,java.desktop,java.logging,java.naming,java.net.http,java.scripting,java.sql,java.xml,jdk.unsupported,jdk.crypto.ec,jdk.accessibility
+          --no-header-files
+          --no-man-pages
+          --strip-debug
+          --compress=1
+
+# extract jffi
+JFFI_NATIVE_JAR=`ls libs | grep -e 'jffi-[1-9]\.[0-9]\{1,2\}.[0-9]\{1,2\}-native.jar'`
+${JAVA_HOME}/bin/jar -xf libs/${JFFI_NATIVE_JAR} /jni/x86_64-Linux/
+mv jni/x86_64-Linux/* libs/libjffi.so
+rm -r jni/x86_64-Linux
+
+# finalize AppDir
+envsubst '${REVISION_NO}' < ${BASEDIR}/dist/appimage/resources/AppDir/bin/cryptomator.sh > Cryptomator.AppDir/bin/cryptomator.sh
+ln -s usr/share/icons/hicolor/scalable/apps/org.cryptomator.Cryptomator.svg Cryptomator.AppDir/org.cryptomator.Cryptomator.svg
+ln -s usr/share/icons/hicolor/scalable/apps/org.cryptomator.Cryptomator.svg Cryptomator.AppDir/Cryptomator.svg
+ln -s usr/share/icons/hicolor/scalable/apps/org.cryptomator.Cryptomator.svg Cryptomator.AppDir/.DirIcon
+ln -s usr/share/applications/org.cryptomator.Cryptomator.desktop Cryptomator.AppDir/Cryptomator.desktop
+ln -s bin/cryptomator.sh Cryptomator.AppDir/AppRun
+
+# load AppImageTool
+curl -L https://github.com/AppImage/AppImageKit/releases/download/13/appimagetool-x86_64.AppImage -o /tmp/appimagetool.AppImage
+chmod +x /tmp/appimagetool.AppImage
+
+# create AppImage
+/tmp/appimagetool.AppImage \
+    ${BASEDIR}/target/Cryptomator.AppDir \
+    cryptomator-SNAPSHOT-x86_64.AppImage \
+    -u 'gh-releases-zsync|cryptomator|cryptomator|latest|cryptomator-*-x86_64.AppImage.zsync'