cmake/CMakeLists.txt

# Copyright 2016 Google Inc. All rights reserved.
#
# 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.

cmake_minimum_required(VERSION 3.5)
project(LibProtobufMutator CXX)

# External dependencies
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/external)

# External dependencies
include(googletest)
include(protobuf)
include(zlib)
include(ProcessorCount)

find_package (Threads)

set(CMAKE_CXX_STANDARD 11)
set(EXTRA_FLAGS "-fno-exceptions -Werror -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EXTRA_FLAGS}")

add_library(protobuf-mutator ../protobuf_mutator.cc)
target_link_libraries(protobuf-mutator
                      ${PROTOBUF_LIBRARY})

protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS ../protobuf_mutator.proto)

enable_testing()
add_executable(protobuf_mutator_test
               ../protobuf_mutator_test.cc
               ../weighted_reservoir_sampler_test.cc
               ${PROTO_SRCS} ${PROTO_HDRS})
target_link_libraries(protobuf_mutator_test
                      protobuf-mutator
                      ${ZLIB_LIBRARIES}
                      ${PROTOBUF_LIBRARY}
                      ${GTEST_BOTH_LIBRARIES}
                      ${CMAKE_THREAD_LIBS_INIT})

ProcessorCount(CPU_COUNT)
math(EXPR TEST_SHARDS_COUNT 2*${CPU_COUNT})
math(EXPR TEST_SHARDS_MAX ${TEST_SHARDS_COUNT}-1)
foreach(SHARD RANGE ${TEST_SHARDS_MAX})
  add_test(test.protobuf_mutator_test_${SHARD} protobuf_mutator_test --gtest_color=yes AUTO)
  set_property(
      TEST test.protobuf_mutator_test_${SHARD}
      APPEND PROPERTY ENVIRONMENT
      GTEST_SHARD_INDEX=${SHARD}
      GTEST_TOTAL_SHARDS=${TEST_SHARDS_COUNT})
endforeach(SHARD)

add_custom_target(check
 COMMAND ${CMAKE_CTEST_COMMAND} -j${CPU_COUNT} --output-on-failure
 DEPENDS protobuf_mutator_test)