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path: root/infra/cmake/modules/ExternalBuildTools.cmake
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function(ExternalBuild_CMake)
  # CMAKE_DIR   Path to cmake root script to build (required)
  # BUILD_DIR   Path to build workspace (required)
  # INSTALL_DIR Path to install (required)
  # PKG_NAME    External package name word for logging and stamp file name (required)
  # IDENTIFIER  String to identify package version (optional)
  # BUILD_FLAGS Multiple argument to set compiler flag
  # EXTRA_OPTS  Multiple argument to pass options, etc for cmake configuration
  include(CMakeParseArguments)
  cmake_parse_arguments(ARG
                        ""
                        "CMAKE_DIR;BUILD_DIR;INSTALL_DIR;PKG_NAME;IDENTIFIER"
                        "BUILD_FLAGS;EXTRA_OPTS"
                        ${ARGN}
  )

  set(BUILD_STAMP_PATH "${ARG_BUILD_DIR}/${ARG_PKG_NAME}.stamp")
  set(BUILD_LOG_PATH "${ARG_BUILD_DIR}/${ARG_PKG_NAME}.log")
  set(INSTALL_STAMP_PATH "${ARG_INSTALL_DIR}/${ARG_PKG_NAME}.stamp")
  set(INSTALL_LOG_PATH "${ARG_INSTALL_DIR}/${ARG_PKG_NAME}.log")

  set(PKG_IDENTIFIER "")
  if(DEFINED ARG_IDENTIFIER)
    set(PKG_IDENTIFIER "${ARG_IDENTIFIER}")
  endif(DEFINED ARG_IDENTIFIER)

  # NOTE Do NOT retry build once it fails
  if(EXISTS ${BUILD_STAMP_PATH})
    file(READ ${BUILD_STAMP_PATH} READ_IDENTIFIER)
    if("${READ_IDENTIFIER}" STREQUAL "${PKG_IDENTIFIER}")
      return()
    endif("${READ_IDENTIFIER}" STREQUAL "${PKG_IDENTIFIER}")
  endif(EXISTS ${BUILD_STAMP_PATH})

  # NOTE Do NOT build pre-installed exists
  if(EXISTS ${INSTALL_STAMP_PATH})
    file(READ ${INSTALL_STAMP_PATH} READ_IDENTIFIER)
    if("${READ_IDENTIFIER}" STREQUAL "${PKG_IDENTIFIER}")
      return()
    endif("${READ_IDENTIFIER}" STREQUAL "${PKG_IDENTIFIER}")
  endif(EXISTS ${INSTALL_STAMP_PATH})

  message(STATUS "Build ${ARG_PKG_NAME} from ${ARG_CMAKE_DIR}")

  file(MAKE_DIRECTORY ${ARG_BUILD_DIR})
  file(MAKE_DIRECTORY ${ARG_INSTALL_DIR})

  file(WRITE "${BUILD_STAMP_PATH}" "${PKG_IDENTIFIER}")

  execute_process(COMMAND ${CMAKE_COMMAND}
                            -G "${CMAKE_GENERATOR}"
                            -DCMAKE_INSTALL_PREFIX=${ARG_INSTALL_DIR}
                            -DCMAKE_BUILD_TYPE=Release
                            -DCMAKE_CXX_FLAGS=${ARG_BUILD_FLAGS}
                            ${ARG_EXTRA_OPTS}
                            ${ARG_CMAKE_DIR}
                  OUTPUT_FILE ${BUILD_LOG_PATH}
                  ERROR_FILE ${BUILD_LOG_PATH}
                  WORKING_DIRECTORY ${ARG_BUILD_DIR}
                  RESULT_VARIABLE BUILD_EXITCODE)

  if(NOT BUILD_EXITCODE EQUAL 0)
    message(FATAL_ERROR "${ARG_PKG_NAME} Package: Build failed (check '${BUILD_LOG_PATH}' for details)")
  endif(NOT BUILD_EXITCODE EQUAL 0)

  execute_process(COMMAND ${CMAKE_COMMAND} --build . -- install
                  OUTPUT_FILE ${INSTALL_LOG_PATH}
                  ERROR_FILE ${INSTALL_LOG_PATH}
                  WORKING_DIRECTORY ${ARG_BUILD_DIR}
                  RESULT_VARIABLE INSTALL_EXITCODE)

  if(NOT INSTALL_EXITCODE EQUAL 0)
    message(FATAL_ERROR "${ARG_PKG_NAME} Package: Installation failed (check '${INSTALL_LOG_PATH}' for details)")
  endif(NOT INSTALL_EXITCODE EQUAL 0)

  file(WRITE "${INSTALL_STAMP_PATH}" "${PKG_IDENTIFIER}")

  message(STATUS "${ARG_PKG_NAME} Package: Done")
endfunction(ExternalBuild_CMake)