if (NOT TARGET Zeek::BinPAC)

message(FATAL_ERROR "BinPAC.cmake needs Zeek::BinPAC")

endif ()

function (binpac_target pacFile)

set(BinPAC_addl_args "")

if (ZEEK_PLUGIN_INTERNAL_BUILD)

# Ensure that for plugins included via --include-plugins, the Zeek's

# source tree paths are added to binpac's include path as well.

set(BinPAC_addl_args

"-I;${CMAKE_SOURCE_DIR};-I;${CMAKE_SOURCE_DIR}/src;-I;${CMAKE_SOURCE_DIR}/src/include")

# Add a dependency on the target when building Zeek to make sure the

# executable actually exists.

set(binpacDep Zeek::BinPAC)

endif ()

# Add ZEEK_SOURCE_DIR and ZEEK_SOURCE_DIR/src to BinPAC_addl_args. This

# variable is defined in the main CMake file.

if (ZEEK_SOURCE_DIR)

list(APPEND BinPAC_addl_args -I "${ZEEK_SOURCE_DIR}" -I "${ZEEK_SOURCE_DIR}/src")

endif ()

# Add ZEEK_CMAKE_INSTALL_PREFIX to BinPAC_addl_args if it exists. This

# variable is present when loading ZeekPlugin.cmake.

if (ZEEK_CMAKE_INSTALL_PREFIX)

list(APPEND BinPAC_addl_args -I "${ZEEK_CMAKE_INSTALL_PREFIX}/include")

endif ()

# Add BinPAC_INCLUDE_DIR to BinPAC_addl_args if it exists. This variable is

# present when finding BinPAC via FindBinPAC.cmake.

if (BinPAC_INCLUDE_DIR)

# Note: this variable may be a list.

foreach (dir ${BinPAC_INCLUDE_DIR})

list(APPEND BinPAC_addl_args -I "${dir}")

endforeach ()

endif ()

get_filename_component(basename ${pacFile} NAME_WE)

set(pacBaseName "${CMAKE_CURRENT_BINARY_DIR}/${basename}")

set(hdr_file ${pacBaseName}_pac.h)

set(src_file ${pacBaseName}_pac.cc)

if (NOT MSVC)

set_property(SOURCE ${src_file} APPEND_STRING PROPERTY COMPILE_FLAGS

"-Wno-tautological-compare")

endif ()

add_clang_tidy_files(${CMAKE_CURRENT_BINARY_DIR}/${basename}_pac.cc)

set(target "pac-${CMAKE_CURRENT_BINARY_DIR}/${pacFile}")

# Make sure to escape a bunch of special characters in the path before trying to use it as a

# regular expression below.

string(REGEX REPLACE "([][+.*()^])" "\\\\\\1" escaped_path "${PROJECT_BINARY_DIR}/src/")

string(REGEX REPLACE "${escaped_path}" "" target "${target}")

string(REGEX REPLACE "/" "-" target "${target}")

string(REGEX REPLACE ":" "" target "${target}")

add_custom_command(

OUTPUT "${hdr_file}" "${src_file}"

COMMAND

Zeek::BinPAC -q -d ${CMAKE_CURRENT_BINARY_DIR} -I ${CMAKE_CURRENT_SOURCE_DIR} -I

${CMAKE_CURRENT_SOURCE_DIR}/src ${BinPAC_addl_args}

${CMAKE_CURRENT_SOURCE_DIR}/${pacFile}

DEPENDS ${binpacDep} ${pacFile} ${BINPAC_AUXSRC} ${ARGN}

COMMENT "[BINPAC] Processing ${CMAKE_CURRENT_SOURCE_DIR}/${pacFile}")

add_custom_target(${target} DEPENDS "${hdr_file}" "${src_file}")

# Make paths to generated visible at the caller.

set(BINPAC_OUTPUT_H "${hdr_file}" PARENT_SCOPE)

set(BINPAC_OUTPUT_CC "${src_file}" PARENT_SCOPE)

# When building Zeek, this target bundles all auto-generated files.

if (TARGET zeek_autogen_files)

add_dependencies(zeek_autogen_files ${target})

endif ()

endfunction ()