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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.21)
set(ZITI_SDK_DIR "" CACHE FILEPATH "developer option: use local ziti-sdk-c checkout")
set(ZITI_SDK_VERSION "1.2.1" CACHE STRING "ziti-sdk-c version or branch to use")
# if TUNNEL_SDK_ONLY then don't descend into programs/ziti-edge-tunnel
option(TUNNEL_SDK_ONLY "build only ziti-tunnel-sdk (without ziti)" OFF)
message("tunnel only = ${TUNNEL_SDK_ONLY}")
# if EXCLUDE_PROGRAMS then don't descend into programs/ziti-edge-tunnel
option(EXCLUDE_PROGRAMS "exclude building the programs directory" OFF)
message("exclude programs = ${EXCLUDE_PROGRAMS}")
if (WIN32)
add_compile_definitions(PATH_SEP='\\\\')
else()
add_compile_definitions(PATH_SEP='/')
endif()
find_package(Git)
if(NOT GIT_VERSION AND GIT_FOUND)
message("Found Git executable \"${GIT_EXECUTABLE}\".")
# Generate a git-describe version string from Git repository tags
execute_process(
COMMAND ${GIT_EXECUTABLE} describe --long --tags
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
OUTPUT_VARIABLE GIT_VERSION
RESULT_VARIABLE GIT_ERROR_CODE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(GIT_ERROR_CODE)
message(WARNING "Error trying to get GIT_VERSION: \"${GIT_VERSION}\" and GIT_ERROR_CODE: \"${GIT_ERROR_CODE}\".")
else()
message(DEBUG "Found Git version \"${GIT_VERSION}\" without error code.")
endif()
endif()
set(DUMMY_SEMVER "0.0.0")
# Final fallback: Unless building packages, just use a bogus version string
# that is semantically older than anything else and spit out a warning to the
# developer.
if(NOT GIT_VERSION)
set(GIT_VERSION v0.0.0-unknown)
set(PROJECT_SEMVER "${DUMMY_SEMVER}")
message(WARNING "GIT_VERSION not set. Using dummy PROJECT_SEMVER: \"${PROJECT_SEMVER}\", GIT_VERSION: \"${GIT_VERSION}\".")
else()
# tag-tweak-slug
string(REGEX REPLACE "(.*)-([0-9]+)-(.*)" "\\1" PROJECT_TAG "${GIT_VERSION}")
string(REGEX REPLACE "(.*)-([0-9]+)-(.*)" "\\2" PROJECT_TWEAK "${GIT_VERSION}")
string(REGEX REPLACE "(.*)-([0-9]+)-(.*)" "\\3" PROJECT_SLUG "${GIT_VERSION}")
# extract semver from pre-release tags like 2.0.0-alpha
string(REGEX MATCH "([0-9]+.[0-9]+.[0-9]+)" PROJECT_SEMVER ${PROJECT_TAG})
if(NOT PROJECT_SEMVER)
set(PROJECT_SEMVER "${DUMMY_SEMVER}")
message(WARNING "SEMVER could not be parsed from GIT_VERSION: ${GIT_VERSION}. Setting to PROJECT_SEMVER: ${PROJECT_SEMVER}")
else()
message("Parsed GIT_VERSION: \"${GIT_VERSION}\", PROJECT_SEMVER: \"${PROJECT_SEMVER}\".")
endif()
endif()
option(DISABLE_SEMVER_VERIFICATION "Toggle SEMVER verification for BUILD_DIST_PACKAGES" OFF)
option(BUILD_DIST_PACKAGES "Build packages for distribution package managers" OFF)
# verify the semver unless DISABLE option is set
if((NOT DISABLE_SEMVER_VERIFICATION) AND PROJECT_SEMVER VERSION_EQUAL "${DUMMY_SEMVER}")
unset(GIT_VERSION CACHE)
unset(GIT_ERROR_CODE CACHE)
unset(PROJECT_SEMVER CACHE)
unset(BUILD_DIST_PACKAGES CACHE)
unset(DISABLE_SEMVER_VERIFICATION CACHE)
message(FATAL_ERROR "SEMVER Verification failed. A valid SEMVER is required for correct package version composition. To override, set DISABLE_SEMVER_VERIFICATION=ON.")
endif()
unset(GIT_VERSION CACHE)
if (PROJECT_TWEAK STREQUAL "0")
set(GIT_VERSION ${PROJECT_TAG})
else ()
set(GIT_VERSION "${PROJECT_TAG}.${PROJECT_TWEAK}")
endif ()
project(ziti-tunnel-sdk-c
DESCRIPTION "OpenZiti tunneler SDK"
HOMEPAGE_URL "https://github.com/openziti/ziti-tunneler-sdk-c"
LANGUAGES C CXX)
option(ZITI_TUNNEL_BUILD_TESTS "Build tests." "${${PROJECT_NAME}_IS_TOP_LEVEL}")
set(PROJECT_VERSION ${GIT_VERSION})
if(NOT BUILD_DIST_PACKAGES)
include(CPack)
set(CPACK_PACKAGE_VENDOR "NetFoundry")
endif()
set(CMAKE_C_STANDARD 99)
string(TIMESTAMP BUILD_DATE "%a-%m/%d/%Y-%H:%M:%S-%Z")
if (MSVC)
add_compile_options(-Zi)
else()
add_compile_options(-g)
endif()
add_custom_target(bundle
COMMENT "creates publishable artifacts")
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/bundle)
macro(BUNDLE_COMP comp)
add_custom_target(${comp}-bundle
BYPRODUCTS ${CMAKE_BINARY_DIR}/bundle/${comp}-${CMAKE_SYSTEM_NAME}_${CMAKE_SYSTEM_PROCESSOR}.zip
DEPENDS ${comp}
# use generator expression to set working directory to the target's build directory. this works for multi-config generators, e.g. when "--config" is specified at build time.
WORKING_DIRECTORY "$<TARGET_FILE_DIR:${comp}>"
COMMENT "adding components to bundle ${comp} for ${CMAKE_SYSTEM_NAME}:${CMAKE_SYSTEM_PROCESSOR}: $<TARGET_FILE_NAME:${comp}> ${${comp}_BUNDLE_COMPS}"
COMMAND ${CMAKE_COMMAND} -E tar "cf" "${CMAKE_BINARY_DIR}/bundle/${comp}-${CMAKE_SYSTEM_NAME}_${CMAKE_SYSTEM_PROCESSOR}.zip" --format=zip -- $<TARGET_FILE_NAME:${comp}> ${${comp}_BUNDLE_COMPS})
add_dependencies(bundle ${comp}-bundle)
endmacro()
message("project version: ${PROJECT_VERSION} (git version ${GIT_VERSION})")
message("cross-compiling: ${CMAKE_CROSSCOMPILING}")
link_directories(${CMAKE_BINARY_DIR}/lib)
add_subdirectory(deps)
add_subdirectory(lib/ziti-tunnel)
if(NOT TUNNEL_SDK_ONLY)
add_subdirectory(lib/ziti-tunnel-cbs)
if(NOT EXCLUDE_PROGRAMS)
add_subdirectory(programs)
endif()
endif()
if (WIN32)
set(CMAKE_INSTALL_LIBDIR lib)
set(CMAKE_INSTALL_INCLUDEDIR include)
endif()
# lwip macro defaults. override on command line or in parent cmakelists.
set(LWIP_MEM_SIZE 1048576 CACHE STRING "LWIP MEM_SIZE option")
set(LWIP_PBUF_POOL_SIZE 1024 CACHE STRING "LWIP PBUF_POOL_SIZE option")
set(UDP_MAX_CONNECTIONS 512 CACHE STRING "LWIP MEMP_NUM_UDP_PCB option")
set(TCP_MAX_QUEUED_SEGMENTS 2048 CACHE STRING "LWIP MEMP_NUM_TCP_SEG option")
set(TCP_MAX_CONNECTIONS 512 CACHE STRING "LWIP MEMP_NUM_TCP_PCB option")
target_compile_definitions(lwipcore
PUBLIC MEM_SIZE=${LWIP_MEM_SIZE}
PUBLIC PBUF_POOL_SIZE=${LWIP_PBUF_POOL_SIZE}
PUBLIC MEMP_NUM_TCP_PCB=${TCP_MAX_CONNECTIONS}
PUBLIC MEMP_NUM_TCP_SEG=${TCP_MAX_QUEUED_SEGMENTS}
PUBLIC MEMP_NUM_UDP_PCB=${UDP_MAX_CONNECTIONS}
)
if (ZITI_TUNNEL_BUILD_TESTS)
add_subdirectory(tests)
add_subdirectory(lib/tests)
endif ()