Auto generate version number and apply it to install dir and libngraph.so (#925)

* migrate files

* apply version number to libngraph.so

* fix cmake running with empty build directory

CMakeLists.txt

@@ -16,6 +16,18 @@
 
 cmake_minimum_required (VERSION 3.1)
 
+include(cmake/Modules/git_tags.cmake)
+NGRAPH_GET_VERSION_LABEL()
+
+string(REGEX MATCH "([0-9]+)\.([0-9]+)\.([0-9]+)" NGRAPH_VERSION_SHORT "${NGRAPH_VERSION_LABEL}")
+string(REGEX MATCH "([0-9]+)\.([0-9]+)" NGRAPH_API_VERSION "${NGRAPH_VERSION_LABEL}")
+set(NGRAPH_VERSION "${NGRAPH_VERSION_LABEL}")
+configure_file(VERSION.in VERSION)
+
+message(STATUS "NGRAPH_VERSION ${NGRAPH_VERSION}")
+message(STATUS "NGRAPH_VERSION_SHORT ${NGRAPH_VERSION_SHORT}")
+message(STATUS "NGRAPH_API_VERSION ${NGRAPH_API_VERSION}")
+
 set(NGRAPH_INCLUDE_PATH
     ${CMAKE_CURRENT_SOURCE_DIR}/src
 )
@@ -133,6 +145,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat -Wformat-security")
 if (NOT APPLE)
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -z noexecstack")
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -z relro -z now")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie")
 endif()
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)
@@ -169,6 +182,8 @@ if(NGRAPH_GPU_ENABLE)
         "Please select a correct compiler version\n"
         )
     endif()
+elseif(NGRAPH_GPU_ENABLE)
+    message(FATAL_ERROR "GPU was required but CUDA library was not found")
 endif()
 
 #-----------------------------------------------------------------------------------------------

VERSION.in

+${NGRAPH_VERSION}

cmake/Modules/git_tags.cmake

+# ******************************************************************************
+# Copyright 2017-2018 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ******************************************************************************
+
+function(NGRAPH_GET_CURRENT_HASH)
+    find_package(Git REQUIRED)
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} rev-parse --verify HEAD
+        RESULT_VARIABLE result
+        OUTPUT_VARIABLE HASH)
+    string(STRIP ${HASH} HASH)
+    set(NGRAPH_CURRENT_HASH ${HASH} PARENT_SCOPE)
+endfunction()
+
+function(NGRAPH_GET_TAG_OF_CURRENT_HASH)
+    find_package(Git REQUIRED)
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} ls-remote --tags
+        RESULT_VARIABLE RESULT
+        OUTPUT_VARIABLE TAG_LIST)
+    NGRAPH_GET_CURRENT_HASH()
+
+    string(REGEX MATCH "${NGRAPH_CURRENT_HASH}\t[^\r\n]*" TAG ${TAG_LIST})
+    set(FINAL_TAG ${TAG})
+    if (NOT "${TAG}" STREQUAL "")
+        string(REGEX REPLACE "${NGRAPH_CURRENT_HASH}\trefs/tags/(.*)" "\\1" FINAL_TAG ${TAG})
+    endif()
+    set(NGRAPH_CURRENT_RELEASE_TAG ${FINAL_TAG} PARENT_SCOPE)
+endfunction()
+
+function(NGRAPH_GET_MOST_RECENT_TAG)
+    find_package(Git REQUIRED)
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} describe --tags --abbrev=0
+        RESULT_VARIABLE RESULT
+        OUTPUT_VARIABLE TAG)
+    string(STRIP ${TAG} TAG)
+    set(NGRAPH_MOST_RECENT_RELEASE_TAG ${TAG} PARENT_SCOPE)
+endfunction()
+
+function(NGRAPH_GET_VERSION_LABEL)
+    NGRAPH_GET_TAG_OF_CURRENT_HASH()
+    set(NGRAPH_VERSION_LABEL ${NGRAPH_CURRENT_RELEASE_TAG} PARENT_SCOPE)
+    if ("${NGRAPH_CURRENT_RELEASE_TAG}" STREQUAL "")
+        NGRAPH_GET_CURRENT_HASH()
+        NGRAPH_GET_MOST_RECENT_TAG()
+        string(SUBSTRING "${NGRAPH_CURRENT_HASH}" 0 7 HASH)
+        set(NGRAPH_VERSION_LABEL "${NGRAPH_MOST_RECENT_RELEASE_TAG}+${HASH}" PARENT_SCOPE)
+    endif()
+endfunction()

src/ngraph/CMakeLists.txt

@@ -287,7 +287,6 @@ endif()
         set_property(SOURCE codegen/compiler.cpp APPEND_STRING PROPERTY COMPILE_DEFINITIONS
         "CUDNN_HEADER_PATHS=\"${CUDNN_INCLUDE_DIRS}\";")
     endif()
-
 endif()
 
 if (NGRAPH_NNP_ENABLE)
@@ -296,6 +295,7 @@ if (NGRAPH_NNP_ENABLE)
 endif()
 
 add_library(ngraph SHARED ${SRC})
+set_target_properties(ngraph PROPERTIES VERSION ${NGRAPH_VERSION} SOVERSION ${NGRAPH_API_VERSION})
 if (NGRAPH_CPU_ENABLE AND LLVM_INCLUDE_DIR AND MKLDNN_INCLUDE_DIR)
     # Generate the resource file containing all headers used by the codegen compiler
     add_custom_target(header_resource
@@ -376,6 +376,7 @@ endif()
 #-----------------------------------------------------------------------------------------------
 
 # NGraph
+install(FILES ${CMAKE_BINARY_DIR}/VERSION DESTINATION ${CMAKE_INSTALL_PREFIX})
 install(TARGETS ngraph DESTINATION ${NGRAPH_INSTALL_LIB})  # libngraph.so
 install(DIRECTORY
     ${CMAKE_CURRENT_SOURCE_DIR}/