# ########################################################################
# Copyright (c) 2018-2020 Advanced Micro Devices, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ########################################################################

cmake_minimum_required(VERSION 3.5 FATAL_ERROR)

if (NOT python)
    set(python "python3") # default for linux
endif()

# Consider removing this in the future
# This should appear before the project command, because it does not use FORCE
if(WIN32)
  set(CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/package" CACHE PATH "Install path prefix, prepended onto install directories")
else()
  set(CMAKE_INSTALL_PREFIX "/opt/rocm" CACHE PATH "Install path prefix, prepended onto install directories")
endif()

# Pick up static and dynamic shared object files
list( APPEND CMAKE_PREFIX_PATH /opt/rocm/llvm /opt/rocm/hip )

# CMake modules
list(APPEND CMAKE_MODULE_PATH
     ${CMAKE_CURRENT_SOURCE_DIR}/cmake
     ${CMAKE_PREFIX_PATH}/cmake
)

# Set a default build type if none was specified
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  message(STATUS "Setting build type to 'Release' as none was specified.")
  set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build." FORCE)
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "" "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()

# Honor per-config flags in try_compile() source-file signature. cmake v3.7 and up
if(POLICY CMP0066)
  cmake_policy(SET CMP0066 NEW)
endif()

if (NOT WIN32)
    if ( NOT DEFINED CMAKE_Fortran_COMPILER AND NOT DEFINED ENV{FC} )
      set( CMAKE_Fortran_COMPILER  "gfortran" )
    endif()
    set( fortran_language "Fortran" )
endif( )

# hipSPARSE project
project(hipsparse LANGUAGES CXX Fortran)

# Force library install path to lib (CentOS 7 defaults to lib64)
set(CMAKE_INSTALL_LIBDIR "lib" CACHE INTERNAL "Installation directory for libraries" FORCE)

# Build flags
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

# Build options
option(BUILD_SHARED_LIBS "Build hipSPARSE as a shared library" ON)
option(BUILD_CLIENTS_TESTS "Build tests (requires googletest)" OFF)
option(BUILD_CLIENTS_SAMPLES "Build examples" ON)
option(BUILD_VERBOSE "Output additional build information" OFF)
option(USE_CUDA "Build hipSPARSE using CUDA backend" OFF)
option(BUILD_CUDA "Build hipSPARSE using CUDA backend" OFF)
option(BUILD_CODE_COVERAGE "Build with code coverage enabled" OFF)
option(BUILD_ADDRESS_SANITIZER "Build with address sanitizer enabled" OFF)

if(BUILD_CUDA)
  message(DEPRECATION "Using BUILD_CUDA is deprecated and will be removed as an option in a future release. Instead use USE_CUDA")
  set(USE_CUDA ${BUILD_CUDA})
endif()

if(BUILD_CODE_COVERAGE)
  add_compile_options(-fprofile-arcs -ftest-coverage)
  add_link_options(--coverage)
endif()

if(BUILD_ADDRESS_SANITIZER)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -shared-libasan")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -shared-libasan")
  add_link_options(-fuse-ld=lld)
endif()

# Dependencies
include(cmake/Dependencies.cmake)

# Setup version
rocm_setup_version(VERSION 2.1.0)
set(hipsparse_SOVERSION 0.1)

# hipSPARSE library
add_subdirectory(library)

if(BUILD_CLIENTS_SAMPLES OR BUILD_CLIENTS_TESTS)
  add_subdirectory(clients)
endif()

#
# ADDITIONAL TARGETS FOR CODE COVERAGE
#
if(BUILD_CODE_COVERAGE)
  #
  # > make coverage_cleanup (clean coverage related files.)
  # > make coverage GTEST_FILTER=<>
  # will run:
  #  > make coverage_analysis GTEST_FILTER=<> (analyze tests)
  #  > make coverage_output (generate html documentation)
  #

  #
  # Run coverage analysis
  #
  add_custom_target(coverage_analysis
    COMMAND echo Coverage GTEST_FILTER=\${GTEST_FILTER}
    COMMAND ./clients/staging/hipsparse-test --gtest_filter=\"\${GTEST_FILTER}\"
    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
    )

  add_dependencies(coverage_analysis hipsparse)

  #
  # Prepare coverage output
  # This little script is generated because the option '--gcov-tool <program name>' of lcov cannot take arguments.
  #
  add_custom_target(coverage_output
    DEPENDS coverage_analysis
    COMMAND mkdir -p lcoverage
    COMMAND echo "\\#!/bin/bash" > llvm-gcov.sh
    COMMAND echo "\\# THIS FILE HAS BEEN GENERATED" >> llvm-gcov.sh
    COMMAND printf "exec /opt/rocm/llvm/bin/llvm-cov gcov $$\\@" >> llvm-gcov.sh
    COMMAND chmod +x llvm-gcov.sh
    )

  #
  # Generate coverage output.
  #
  add_custom_command(TARGET coverage_output
    COMMAND lcov --directory . --base-directory . --gcov-tool ${CMAKE_BINARY_DIR}/llvm-gcov.sh --capture -o lcoverage/raw_main_coverage.info
    COMMAND lcov --remove lcoverage/raw_main_coverage.info "'/opt/*'" "'/usr/*'" -o lcoverage/main_coverage.info
    COMMAND genhtml lcoverage/main_coverage.info --output-directory lcoverage
    )

  add_custom_target(coverage DEPENDS coverage_output)

  #
  # Coverage cleanup
  #
  add_custom_target(coverage_cleanup
    COMMAND find ${CMAKE_BINARY_DIR} -name *.gcda -delete
    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
    )
endif()