Complete working AppImage build succeded with these scripts … merging to master

Author: ju6ge

CMakeLists.txt

@@ -29,7 +29,7 @@ IF (CUSTOM_QT_PATH)
 	SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
 	SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
 	SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
-	SET(CMAKE_PREFIX_PATH "${CUSTOM_QT_PATH}/cmake")
+	SET(CMAKE_PREFIX_PATH "${CUSTOM_QT_PATH}/lib/cmake")
 ENDIF(CUSTOM_QT_PATH)
 
 FIND_PACKAGE (Qt5 REQUIRED COMPONENTS Core Gui Widgets 3DCore 3DExtras 3DRender 3DInput)
@@ -54,6 +54,8 @@ ELSE( ${CMAKE_VERSION} VERSION_LESS 3.12.0 )
 	ADD_COMPILE_DEFINITIONS (TOOKIT_VERSION="${TOOLKIT_VERSION}" INSTALL_DIR="${CMAKE_INSTALL_PREFIX}/share/ORB/rbdl-toolkit")
 ENDIF( ${CMAKE_VERSION} VERSION_LESS 3.12.0 )
 
+CONFIGURE_FILE(extra/mk_appimage.sh mk_appimage.sh)
+
 QT5_WRAP_UI ( UI_SRC
 	ui/Timeline.ui
 	ui/ModelSelector.ui
@@ -124,6 +126,18 @@ TARGET_LINK_LIBRARIES ( rbdl-toolkit
 	toolkitlib
 )
 
+IF (CUSTOM_QT_PATH)
+ADD_CUSTOM_TARGET(appimage
+	BYPRODUCTS rbdl-toolkit-x86_64.AppImage rbdl-toolkit.AppDir
+	COMMAND ${CMAKE_CURRENT_BINARY_DIR}/mk_appimage.sh -customqt
+)
+ELSE(CUSTOM_QT_PATH)
+ADD_CUSTOM_TARGET(appimage
+	BYPRODUCTS rbdl-toolkit-x86_64.AppImage rbdl-toolkit.AppDir
+	COMMAND ${CMAKE_CURRENT_BINARY_DIR}/mk_appimage.sh
+)
+ENDIF(CUSTOM_QT_PATH)
+
 INSTALL ( TARGETS rbdl-toolkit RUNTIME DESTINATION bin )
 INSTALL ( TARGETS toolkitlib RUNTIME DESTINATION lib )
 

README.md

@@ -49,11 +49,13 @@ at version *5.13.2* other versions are not guaranteed to work, since Qt3D is
 at the moment subject to many changes!
 
 Afterwards build *rbdl-toolkit* with cmake and adding the CUSTOM_QT_PATH variable set to 
-your [QT_INSTALL_DIR]/[QT_VERSION]/[COMPILER]/lib. 
+your [QT_INSTALL_DIR]/[QT_VERSION]/[COMPILER]. If you compiled QT yourself just set this
+variable to the -prefix you used for the compile/install.
+
 For me that looked like this:
 
 ```code
-cmake -DCUSTOM_QT_PATH=~/Qt5.13/5.13.2/gcc_64/lib ..
+cmake -DCUSTOM_QT_PATH=~/Qt5.13/5.13.2/gcc_64 ..
 make
 ```
 

extra/mk_appimage.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+customqt=false
+for arg in "$@"
+do
+	if [ "$arg" == "-customqt" ]
+	then
+		customqt=true
+	fi
+done
+
+
+# install application to appdir
+make install DESTDIR=rbdl-toolkit.AppDir
+
+if (( $? )); then
+	exit 1
+fi
+
+# populate appdir with need libs
+linuxdeploy --appdir=rbdl-toolkit.AppDir -e rbdl-toolkit --deploy-deps-only=rbdl-toolkit.AppDir/usr/local/share/ORB/rbdl-toolkit/plugins/librenderplugin.so -i ../extra/rbdl-toolkit.png --create-desktop-file
+
+if (( $? )); then
+	exit 1
+fi
+
+# pull correct qt dependencies into appdir
+if [ "$customqt" == true ]
+then
+	QMAKE=${CUSTOM_QT_PATH}/bin/qmake linuxdeploy-qt --appdir=rbdl-toolkit.AppDir -p libdefaultgeometryloader.so -p 3dquickrender
+else
+	linuxdeploy-qt --appdir=rbdl-toolkit.AppDir
+fi
+
+if (( $? )); then
+	exit 1
+fi
+
+#create AppImage
+appimagetool rbdl-toolkit.AppDir
+
+exit 0

src/ToolkitApp.cc

@@ -87,9 +87,17 @@ ToolkitApp::ToolkitApp(QWidget *parent) {
 
 	//find application path important for plugin loading if running as AppImage
 	auto app_dir = QDir(QCoreApplication::applicationDirPath());
+	bool found = false;
 	if (app_dir.cd("../share/ORB/rbdl-toolkit")) {
 		std::cout << app_dir.absolutePath().toStdString() << std::endl;
 		paths.prepend(app_dir.absolutePath());
+		found = true;
+	}
+
+	app_dir = QDir(QCoreApplication::applicationDirPath());
+	if ( !found && app_dir.cd("../local/share/ORB/rbdl-toolkit")) {
+		std::cout << app_dir.absolutePath().toStdString() << std::endl;
+		paths.prepend(app_dir.absolutePath());
 	}
 
 	if (env.contains(PATH_VAR)) {