# Copyright 2021 PickNik Inc
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#    * Redistributions of source code must retain the above copyright
#      notice, this list of conditions and the following disclaimer.
#
#    * Redistributions in binary form must reproduce the above copyright
#      notice, this list of conditions and the following disclaimer in the
#      documentation and/or other materials provided with the distribution.
#
#    * Neither the name of the PickNik Inc nor the names of its
#      contributors may be used to endorse or promote products derived from
#      this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

option(ENABLE_CLANG_TIDY "Enable static analysis with clang-tidy" OFF)
option(ENABLE_INCLUDE_WHAT_YOU_USE "Enable static analysis with include-what-you-use" OFF)

if(ENABLE_CLANG_TIDY)
  find_program(CLANGTIDY clang-tidy)
  if(CLANGTIDY)
    set(CMAKE_CXX_CLANG_TIDY ${CLANGTIDY} -extra-arg=-Wno-unknown-warning-option)
    if(WARNINGS_AS_ERRORS)
      list(APPEND CMAKE_CXX_CLANG_TIDY -warnings-as-errors=*)
    endif()
  else()
    message(SEND_ERROR "clang-tidy requested but executable not found")
  endif()
endif()

if(ENABLE_INCLUDE_WHAT_YOU_USE)
  find_program(INCLUDE_WHAT_YOU_USE include-what-you-use)
  if(INCLUDE_WHAT_YOU_USE)
    set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE
      ${INCLUDE_WHAT_YOU_USE} -Xiwyu --mapping-file=${PROJECT_SOURCE_DIR}/.iwyu_mapping.imp)
  else()
    message(SEND_ERROR "include-what-you-use requested but executable not found")
  endif()
endif()
