diff options
Diffstat (limited to 'Modules/FindProtobuf.cmake')
| -rw-r--r-- | Modules/FindProtobuf.cmake | 178 |
1 files changed, 112 insertions, 66 deletions
diff --git a/Modules/FindProtobuf.cmake b/Modules/FindProtobuf.cmake index 95e3b1e..8042073 100644 --- a/Modules/FindProtobuf.cmake +++ b/Modules/FindProtobuf.cmake @@ -6,51 +6,51 @@ # # The following variables can be set and are optional: # -# ``PROTOBUF_SRC_ROOT_FOLDER`` +# ``Protobuf_SRC_ROOT_FOLDER`` # When compiling with MSVC, if this cache variable is set # the protobuf-default VS project build locations # (vsprojects/Debug and vsprojects/Release # or vsprojects/x64/Debug and vsprojects/x64/Release) # will be searched for libraries and binaries. -# ``PROTOBUF_IMPORT_DIRS`` +# ``Protobuf_IMPORT_DIRS`` # List of additional directories to be searched for # imported .proto files. -# ``PROTOBUF_DEBUG`` +# ``Protobuf_DEBUG`` # Show debug messages. # # Defines the following variables: # -# ``PROTOBUF_FOUND`` +# ``Protobuf_FOUND`` # Found the Google Protocol Buffers library # (libprotobuf & header files) -# ``PROTOBUF_VERSION`` +# ``Protobuf_VERSION`` # Version of package found. -# ``PROTOBUF_INCLUDE_DIRS`` +# ``Protobuf_INCLUDE_DIRS`` # Include directories for Google Protocol Buffers -# ``PROTOBUF_LIBRARIES`` +# ``Protobuf_LIBRARIES`` # The protobuf libraries -# ``PROTOBUF_PROTOC_LIBRARIES`` +# ``Protobuf_PROTOC_LIBRARIES`` # The protoc libraries -# ``PROTOBUF_LITE_LIBRARIES`` +# ``Protobuf_LITE_LIBRARIES`` # The protobuf-lite libraries # # The following cache variables are also available to set or use: # -# ``PROTOBUF_LIBRARY`` +# ``Protobuf_LIBRARY`` # The protobuf library -# ``PROTOBUF_PROTOC_LIBRARY`` +# ``Protobuf_PROTOC_LIBRARY`` # The protoc library -# ``PROTOBUF_INCLUDE_DIR`` +# ``Protobuf_INCLUDE_DIR`` # The include directory for protocol buffers -# ``PROTOBUF_PROTOC_EXECUTABLE`` +# ``Protobuf_PROTOC_EXECUTABLE`` # The protoc compiler -# ``PROTOBUF_LIBRARY_DEBUG`` +# ``Protobuf_LIBRARY_DEBUG`` # The protobuf library (debug) -# ``PROTOBUF_PROTOC_LIBRARY_DEBUG`` +# ``Protobuf_PROTOC_LIBRARY_DEBUG`` # The protoc library (debug) -# ``PROTOBUF_LITE_LIBRARY`` +# ``Protobuf_LITE_LIBRARY`` # The protobuf lite library -# ``PROTOBUF_LITE_LIBRARY_DEBUG`` +# ``Protobuf_LITE_LIBRARY_DEBUG`` # The protobuf lite library (debug) # # Example: @@ -58,12 +58,12 @@ # .. code-block:: cmake # # find_package(Protobuf REQUIRED) -# include_directories(${PROTOBUF_INCLUDE_DIRS}) +# include_directories(${Protobuf_INCLUDE_DIRS}) # include_directories(${CMAKE_CURRENT_BINARY_DIR}) # protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS foo.proto) # protobuf_generate_python(PROTO_PY foo.proto) # add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS}) -# target_link_libraries(bar ${PROTOBUF_LIBRARIES}) +# target_link_libraries(bar ${Protobuf_LIBRARIES}) # # .. note:: # The ``protobuf_generate_cpp`` and ``protobuf_generate_python`` @@ -129,8 +129,8 @@ function(PROTOBUF_GENERATE_CPP SRCS HDRS) set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR}) endif() - if(DEFINED PROTOBUF_IMPORT_DIRS) - foreach(DIR ${PROTOBUF_IMPORT_DIRS}) + if(DEFINED Protobuf_IMPORT_DIRS) + foreach(DIR ${Protobuf_IMPORT_DIRS}) get_filename_component(ABS_PATH ${DIR} ABSOLUTE) list(FIND _protobuf_include_path ${ABS_PATH} _contains_already) if(${_contains_already} EQUAL -1) @@ -151,9 +151,9 @@ function(PROTOBUF_GENERATE_CPP SRCS HDRS) add_custom_command( OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc" "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h" - COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} + COMMAND ${Protobuf_PROTOC_EXECUTABLE} ARGS --cpp_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL} - DEPENDS ${ABS_FIL} ${PROTOBUF_PROTOC_EXECUTABLE} + DEPENDS ${ABS_FIL} ${Protobuf_PROTOC_EXECUTABLE} COMMENT "Running C++ protocol buffer compiler on ${FIL}" VERBATIM ) endforeach() @@ -183,8 +183,8 @@ function(PROTOBUF_GENERATE_PYTHON SRCS) set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR}) endif() - if(DEFINED PROTOBUF_IMPORT_DIRS) - foreach(DIR ${PROTOBUF_IMPORT_DIRS}) + if(DEFINED Protobuf_IMPORT_DIRS) + foreach(DIR ${Protobuf_IMPORT_DIRS}) get_filename_component(ABS_PATH ${DIR} ABSOLUTE) list(FIND _protobuf_include_path ${ABS_PATH} _contains_already) if(${_contains_already} EQUAL -1) @@ -201,8 +201,8 @@ function(PROTOBUF_GENERATE_PYTHON SRCS) list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py") add_custom_command( OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}_pb2.py" - COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} --python_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL} - DEPENDS ${ABS_FIL} ${PROTOBUF_PROTOC_EXECUTABLE} + COMMAND ${Protobuf_PROTOC_EXECUTABLE} --python_out ${CMAKE_CURRENT_BINARY_DIR} ${_protobuf_include_path} ${ABS_FIL} + DEPENDS ${ABS_FIL} ${Protobuf_PROTOC_EXECUTABLE} COMMENT "Running Python protocol buffer compiler on ${FIL}" VERBATIM ) endforeach() @@ -210,6 +210,29 @@ function(PROTOBUF_GENERATE_PYTHON SRCS) set(${SRCS} ${${SRCS}} PARENT_SCOPE) endfunction() +# Backwards compatibility +# Define camel case versions of input variables +foreach(UPPER + PROTOBUF_SRC_ROOT_FOLDER + PROTOBUF_IMPORT_DIRS + PROTOBUF_DEBUG + PROTOBUF_LIBRARY + PROTOBUF_PROTOC_LIBRARY + PROTOBUF_INCLUDE_DIR + PROTOBUF_PROTOC_EXECUTABLE + PROTOBUF_LIBRARY_DEBUG + PROTOBUF_PROTOC_LIBRARY_DEBUG + PROTOBUF_LITE_LIBRARY + PROTOBUF_LITE_LIBRARY_DEBUG + ) + if (DEFINED ${UPPER}) + string(REPLACE "PROTOBUF_" "Protobuf_" Camel ${UPPER}) + if (NOT DEFINED ${Camel}) + set(${Camel} ${${UPPER}}) + endif() + endif() +endforeach() + if(CMAKE_SIZEOF_VOID_P EQUAL 8) set(_PROTOBUF_ARCH_DIR x64/) endif() @@ -229,12 +252,12 @@ function(_protobuf_find_libraries name filename) else() find_library(${name}_LIBRARY_RELEASE NAMES ${filename} - PATHS ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release) + PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release) mark_as_advanced(${name}_LIBRARY_RELEASE) find_library(${name}_LIBRARY_DEBUG NAMES ${filename} - PATHS ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug) + PATHS ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug) mark_as_advanced(${name}_LIBRARY_DEBUG) select_library_configurations(${name}) @@ -248,8 +271,8 @@ function(_protobuf_find_threads) set(CMAKE_THREAD_PREFER_PTHREAD TRUE) find_package(Threads) if(Threads_FOUND) - list(APPEND PROTOBUF_LIBRARIES ${CMAKE_THREAD_LIBS_INIT}) - set(PROTOBUF_LIBRARIES "${PROTOBUF_LIBRARIES}" PARENT_SCOPE) + list(APPEND Protobuf_LIBRARIES ${CMAKE_THREAD_LIBS_INIT}) + set(Protobuf_LIBRARIES "${Protobuf_LIBRARIES}" PARENT_SCOPE) endif() endfunction() @@ -267,24 +290,24 @@ endif() # Google's provided vcproj files generate libraries with a "lib" # prefix on Windows if(MSVC) - set(PROTOBUF_ORIG_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}") + set(Protobuf_ORIG_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}") set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "") - find_path(PROTOBUF_SRC_ROOT_FOLDER protobuf.pc.in) + find_path(Protobuf_SRC_ROOT_FOLDER protobuf.pc.in) endif() # The Protobuf library -_protobuf_find_libraries(PROTOBUF protobuf) +_protobuf_find_libraries(Protobuf protobuf) #DOC "The Google Protocol Buffers RELEASE Library" -_protobuf_find_libraries(PROTOBUF_LITE protobuf-lite) +_protobuf_find_libraries(Protobuf_LITE protobuf-lite) # The Protobuf Protoc Library -_protobuf_find_libraries(PROTOBUF_PROTOC protoc) +_protobuf_find_libraries(Protobuf_PROTOC protoc) # Restore original find library prefixes if(MSVC) - set(CMAKE_FIND_LIBRARY_PREFIXES "${PROTOBUF_ORIG_FIND_LIBRARY_PREFIXES}") + set(CMAKE_FIND_LIBRARY_PREFIXES "${Protobuf_ORIG_FIND_LIBRARY_PREFIXES}") endif() if(UNIX) @@ -292,78 +315,101 @@ if(UNIX) endif() # Find the include directory -find_path(PROTOBUF_INCLUDE_DIR +find_path(Protobuf_INCLUDE_DIR google/protobuf/service.h - PATHS ${PROTOBUF_SRC_ROOT_FOLDER}/src + PATHS ${Protobuf_SRC_ROOT_FOLDER}/src ) -mark_as_advanced(PROTOBUF_INCLUDE_DIR) +mark_as_advanced(Protobuf_INCLUDE_DIR) # Find the protoc Executable -find_program(PROTOBUF_PROTOC_EXECUTABLE +find_program(Protobuf_PROTOC_EXECUTABLE NAMES protoc DOC "The Google Protocol Buffers Compiler" PATHS - ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release - ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug + ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Release + ${Protobuf_SRC_ROOT_FOLDER}/vsprojects/${_PROTOBUF_ARCH_DIR}Debug ) -mark_as_advanced(PROTOBUF_PROTOC_EXECUTABLE) +mark_as_advanced(Protobuf_PROTOC_EXECUTABLE) -if(PROTOBUF_DEBUG) +if(Protobuf_DEBUG) message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " "requested version of Google Protobuf is ${Protobuf_FIND_VERSION}") endif() -if(PROTOBUF_INCLUDE_DIR) - set(_PROTOBUF_COMMON_HEADER ${PROTOBUF_INCLUDE_DIR}/google/protobuf/stubs/common.h) +if(Protobuf_INCLUDE_DIR) + set(_PROTOBUF_COMMON_HEADER ${Protobuf_INCLUDE_DIR}/google/protobuf/stubs/common.h) - if(PROTOBUF_DEBUG) + if(Protobuf_DEBUG) message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " "location of common.h: ${_PROTOBUF_COMMON_HEADER}") endif() - set(PROTOBUF_VERSION "") - set(PROTOBUF_LIB_VERSION "") + set(Protobuf_VERSION "") + set(Protobuf_LIB_VERSION "") file(STRINGS ${_PROTOBUF_COMMON_HEADER} _PROTOBUF_COMMON_H_CONTENTS REGEX "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+") if(_PROTOBUF_COMMON_H_CONTENTS MATCHES "#define[ \t]+GOOGLE_PROTOBUF_VERSION[ \t]+([0-9]+)") - set(PROTOBUF_LIB_VERSION "${CMAKE_MATCH_1}") + set(Protobuf_LIB_VERSION "${CMAKE_MATCH_1}") endif() unset(_PROTOBUF_COMMON_H_CONTENTS) - math(EXPR _PROTOBUF_MAJOR_VERSION "${PROTOBUF_LIB_VERSION} / 1000000") - math(EXPR _PROTOBUF_MINOR_VERSION "${PROTOBUF_LIB_VERSION} / 1000 % 1000") - math(EXPR _PROTOBUF_SUBMINOR_VERSION "${PROTOBUF_LIB_VERSION} % 1000") - set(PROTOBUF_VERSION "${_PROTOBUF_MAJOR_VERSION}.${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}") + math(EXPR _PROTOBUF_MAJOR_VERSION "${Protobuf_LIB_VERSION} / 1000000") + math(EXPR _PROTOBUF_MINOR_VERSION "${Protobuf_LIB_VERSION} / 1000 % 1000") + math(EXPR _PROTOBUF_SUBMINOR_VERSION "${Protobuf_LIB_VERSION} % 1000") + set(Protobuf_VERSION "${_PROTOBUF_MAJOR_VERSION}.${_PROTOBUF_MINOR_VERSION}.${_PROTOBUF_SUBMINOR_VERSION}") - if(PROTOBUF_DEBUG) + if(Protobuf_DEBUG) message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "${_PROTOBUF_COMMON_HEADER} reveals protobuf ${PROTOBUF_VERSION}") + "${_PROTOBUF_COMMON_HEADER} reveals protobuf ${Protobuf_VERSION}") endif() # Check Protobuf compiler version to be aligned with libraries version - execute_process(COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} --version + execute_process(COMMAND ${Protobuf_PROTOC_EXECUTABLE} --version OUTPUT_VARIABLE _PROTOBUF_PROTOC_EXECUTABLE_VERSION) if("${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" MATCHES "libprotoc ([0-9.]+)") set(_PROTOBUF_PROTOC_EXECUTABLE_VERSION "${CMAKE_MATCH_1}") endif() - if(PROTOBUF_DEBUG) + if(Protobuf_DEBUG) message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] " - "${PROTOBUF_PROTOC_EXECUTABLE} reveals version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}") + "${Protobuf_PROTOC_EXECUTABLE} reveals version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}") endif() - if(NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${PROTOBUF_VERSION}") + if(NOT "${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" VERSION_EQUAL "${Protobuf_VERSION}") message(WARNING "Protobuf compiler version ${_PROTOBUF_PROTOC_EXECUTABLE_VERSION}" - " doesn't match library version ${PROTOBUF_VERSION}") + " doesn't match library version ${Protobuf_VERSION}") endif() endif() include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) FIND_PACKAGE_HANDLE_STANDARD_ARGS(Protobuf - REQUIRED_VARS PROTOBUF_LIBRARIES PROTOBUF_INCLUDE_DIR - VERSION_VAR PROTOBUF_VERSION + REQUIRED_VARS Protobuf_LIBRARIES Protobuf_INCLUDE_DIR + VERSION_VAR Protobuf_VERSION ) -if(PROTOBUF_FOUND) - set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIR}) +if(Protobuf_FOUND) + set(Protobuf_INCLUDE_DIRS ${Protobuf_INCLUDE_DIR}) endif() + +# Backwards compatibility +# Define upper case versions of output variables +foreach(Camel + Protobuf_SRC_ROOT_FOLDER + Protobuf_IMPORT_DIRS + Protobuf_DEBUG + Protobuf_INCLUDE_DIRS + Protobuf_LIBRARIES + Protobuf_PROTOC_LIBRARIES + Protobuf_LITE_LIBRARIES + Protobuf_LIBRARY + Protobuf_PROTOC_LIBRARY + Protobuf_INCLUDE_DIR + Protobuf_PROTOC_EXECUTABLE + Protobuf_LIBRARY_DEBUG + Protobuf_PROTOC_LIBRARY_DEBUG + Protobuf_LITE_LIBRARY + Protobuf_LITE_LIBRARY_DEBUG + ) + string(TOUPPER ${Camel} UPPER) + set(${UPPER} ${${Camel}}) +endforeach() |