Generalize cmake target installation

Signed-off-by: aalbaali <albaalia@live.com>

CMakeLists.txt

@@ -31,17 +31,20 @@ endif()
 # Installation
 ################################################
 # Export package for use from the build tree
-set(TRANSFORMS_GRAPH_CMAKE_EXPORT_DIR lib/cmake/TransformsGraph)
+set(CMAKE_EXPORT_DIR lib/cmake/TransformsGraph)
+set(TARGETS_NAME "TransformsGraph")
+set(TARGETS_NAMESPACE "TransformsGraph")
+set(TARGETS_CONFIG_FILENAME "${TARGETS_NAME}Config.cmake.in")
 
 install(
-  TARGETS TransformsGraph
-  EXPORT  TransformsGraphTargets
+  TARGETS "${TARGETS_NAME}"
+  EXPORT  "${TARGETS_NAME}Targets"
   ARCHIVE DESTINATION lib
   LIBRARY DESTINATION lib 
 )
-install(EXPORT TransformsGraphTargets 
-  NAMESPACE TransformsGraph::
-  DESTINATION ${TRANSFORMS_GRAPH_CMAKE_EXPORT_DIR}
+install(EXPORT "${TARGETS_NAME}Targets" 
+  NAMESPACE "${TARGETS_NAMESPACE}::"
+  DESTINATION ${CMAKE_EXPORT_DIR}
 )
 
 # Install the include directory
@@ -51,14 +54,14 @@ install(
 )
 include(CMakePackageConfigHelpers)
 configure_package_config_file(
-	"TransformsGraphConfig.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/TransformsGraphConfig.cmake"
-  INSTALL_DESTINATION "${TRANSFORMS_GRAPH_CMAKE_EXPORT_DIR}"
+  "${TARGETS_CONFIG_FILENAME}" "${CMAKE_CURRENT_BINARY_DIR}/${TARGETS_NAME}Config.cmake"
+  INSTALL_DESTINATION "${CMAKE_EXPORT_DIR}"
 )
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/TransformsGraphConfig.cmake" DESTINATION "${TRANSFORMS_GRAPH_CMAKE_EXPORT_DIR}")
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${TARGETS_NAME}Config.cmake" DESTINATION "${CMAKE_EXPORT_DIR}")
 
 # Export without installing
 export(
   EXPORT TransformsGraphTargets
-  FILE "${CMAKE_CURRENT_BINARY_DIR}/TransformsGraphTargets.cmake"
-  NAMESPACE TransformsGraph::
+  FILE "${CMAKE_CURRENT_BINARY_DIR}/${TARGETS_NAME}Targets.cmake"
+  NAMESPACE "${TARGETS_NAMESPACE}::"
 )