desktop: AppImage support (#2839)

scripts/desktop/make-appimage-linux.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -e
+
+function readlink() {
+  echo "$(cd "$(dirname "$1")"; pwd -P)"
+}
+
+root_dir="$(dirname "$(dirname "$(readlink "$0")")")"
+multiplatform_dir=$root_dir/apps/multiplatform
+release_app_dir=$root_dir/apps/multiplatform/release/main/app
+
+cd $multiplatform_dir
+libcrypto_path=$(ldd common/src/commonMain/cpp/desktop/libs/*/deps/libHSdirect-sqlcipher-*.so | grep libcrypto | cut -d'=' -f 2 | cut -d ' ' -f 2)
+
+cp $libcrypto_path common/src/commonMain/cpp/desktop/libs/*/deps
+
+./gradlew createDistributable
+rm common/src/commonMain/cpp/desktop/libs/*/deps/`basename $libcrypto_path`
+rm desktop/src/jvmMain/resources/libs/*/`basename $libcrypto_path`
+
+rm -rf $release_app_dir/AppDir 2>/dev/null
+mkdir -p $release_app_dir/AppDir/usr
+
+cd $release_app_dir/AppDir
+cp -r ../*imple*/{bin,lib} usr
+cp usr/lib/simplex.png .
+
+# For https://github.com/TheAssassin/AppImageLauncher to be able to show the icon
+mkdir -p usr/share/icons
+cp usr/lib/simplex.png usr/share/icons
+
+ln -s usr/bin/*imple* AppRun
+cp $multiplatform_dir/desktop/src/jvmMain/resources/distribute/*imple*.desktop .
+sed -i 's|Exec=.*|Exec=simplex|g' *imple*.desktop
+sed -i 's|Icon=.*|Icon=simplex|g' *imple*.desktop
+
+if [ ! -f ../appimagetool-x86_64.AppImage ]; then
+    wget https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage -O ../appimagetool-x86_64.AppImage
+    chmod +x ../appimagetool-x86_64.AppImage
+fi
+../appimagetool-x86_64.AppImage .
+
+mv *imple*.AppImage ../../