Improve versioning

libevmjit/CMakeLists.txt

@@ -11,19 +11,48 @@ if (NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	set_source_files_properties(Cache.cpp PROPERTIES COMPILE_FLAGS -fno-rtti)
 endif()
 
-find_package(Git)
-if(GIT_FOUND)
-	execute_process(COMMAND ${GIT_EXECUTABLE} -C ${CMAKE_CURRENT_SOURCE_DIR} describe --dirty --always
-					OUTPUT_VARIABLE EVMJIT_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+set(EVMJIT_VERSION "0.0.0")
+set(EVMJIT_VERSION_MAJOR 0)
+set(EVMJIT_VERSION_MINOR 0)
+set(EVMJIT_VERSION_PATCH 0)
+set(EVMJIT_VERSION_FULL "v0.0.0-nogit")
+
+find_package(Git)
+if(GIT_FOUND)
+	execute_process(COMMAND ${GIT_EXECUTABLE} -C ${CMAKE_CURRENT_SOURCE_DIR} describe --dirty --always --match v*
+					OUTPUT_VARIABLE EVMJIT_VERSION_FULL OUTPUT_STRIP_TRAILING_WHITESPACE)
 endif()
-if(NOT EVMJIT_VERSION)
-	set(EVMJIT_VERSION "unknown")
+
+if(${EVMJIT_VERSION_FULL} MATCHES "^v[0-9]+\\.[0-9]+")
+	string(SUBSTRING ${EVMJIT_VERSION_FULL} 1 -1 EVMJIT_VERSION_FULL) # skip "v"
+	string(REPLACE "-" ";" VERSION_COMPONENTS ${EVMJIT_VERSION_FULL})
+	list(LENGTH VERSION_COMPONENTS NUM_VERSION_COMPONENTS)
+	list(GET VERSION_COMPONENTS 0 EVMJIT_VERSION)
+	string(REPLACE "." ";" VERSION_NUMBERS ${EVMJIT_VERSION})
+	list(LENGTH VERSION_NUMBERS NUM_VERSION_NUMBERS)
+	list(GET VERSION_NUMBERS 0 EVMJIT_VERSION_MAJOR)
+	list(GET VERSION_NUMBERS 1 EVMJIT_VERSION_MINOR)
+	if(${NUM_VERSION_NUMBERS} GREATER 2)
+		list(GET VERSION_NUMBERS 2 EVMJIT_VERSION_PATCH) # patch number is optional
+	endif()
+	if(${NUM_VERSION_COMPONENTS} GREATER 0)
+		list(GET VERSION_COMPONENTS 1 EVMJIT_VERSION_PRERELEASE)
+	endif()
+endif()
+
+if(${EVMJIT_VERSION_MAJOR} EQUAL 0)
+	set(EVMJIT_SOVERSION "0.${EVMJIT_VERSION_MINOR}")
+else()	
+	set(EVMJIT_SOVERSION ${EVMJIT_VERSION_MAJOR})
 endif()
 
-message("EVM JIT version: ${EVMJIT_VERSION}")
+message(STATUS "EVM JIT version: ${EVMJIT_VERSION_MAJOR}.${EVMJIT_VERSION_MINOR}.${EVMJIT_VERSION_PATCH}-${EVMJIT_VERSION_PRERELEASE} (${EVMJIT_VERSION_FULL})")
 
 add_library(${TARGET_NAME} SHARED ${SOURCES} ${HEADERS})
-set_target_properties(${TARGET_NAME} PROPERTIES VERSION ${EVMJIT_VERSION} FOLDER "libs")
+set_target_properties(${TARGET_NAME} PROPERTIES 
+						VERSION ${EVMJIT_VERSION} SOVERSION ${EVMJIT_SOVERSION}
+						FOLDER "libs")
 
 include_directories(${LLVM_INCLUDE_DIRS})
 
@@ -32,4 +61,4 @@ target_link_libraries(${TARGET_NAME} PRIVATE ${LLVM_LIBS})
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
 
 install(TARGETS ${TARGET_NAME} LIBRARY DESTINATION lib ARCHIVE DESTINATION lib RUNTIME DESTINATION bin)
-#install(FILES ${INTERFACE_HEADERS} DESTINATION include/${TARGET_NAME})
+#install(FILES ${INTERFACE_HEADERS} DESTINATION include/${TARGET_NAME})