mono/packages/media/cpp/CMakeLists.txt

cmake_minimum_required(VERSION 3.20)

project(media-image-service
    VERSION 0.1.0
    DESCRIPTION "Polymech image resize service (CLI, REST, IPC) — libvips"
    LANGUAGES CXX
)

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/dist")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG "${CMAKE_SOURCE_DIR}/dist")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE "${CMAKE_SOURCE_DIR}/dist")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO "${CMAKE_SOURCE_DIR}/dist")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL "${CMAKE_SOURCE_DIR}/dist")

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

# Windows: official libvips dev tree (see scripts/fetch-vips-windows.ps1) — vips-dev-* under third_party/
if(WIN32)
  file(GLOB _MEDIA_VIPS_SDK "${CMAKE_CURRENT_SOURCE_DIR}/third_party/vips-dev-*")
  if(_MEDIA_VIPS_SDK)
    list(APPEND CMAKE_PREFIX_PATH ${_MEDIA_VIPS_SDK})
  endif()
endif()

include(FetchContent)

set(JSON_BuildTests OFF CACHE BOOL "" FORCE)

FetchContent_Declare(
    cli11
    GIT_REPOSITORY https://github.com/CLIUtils/CLI11.git
    GIT_TAG v2.4.2
    GIT_SHALLOW TRUE
)

FetchContent_Declare(
    asio
    GIT_REPOSITORY https://github.com/chriskohlhoff/asio.git
    GIT_TAG asio-1-28-0
    GIT_SHALLOW TRUE
)

FetchContent_Declare(
    nlohmann_json
    GIT_REPOSITORY https://github.com/nlohmann/json.git
    GIT_TAG v3.11.3
    GIT_SHALLOW TRUE
)

FetchContent_Declare(
    cpp_httplib
    GIT_REPOSITORY https://github.com/yhirose/cpp-httplib.git
    GIT_TAG v0.16.3
    GIT_SHALLOW TRUE
)

FetchContent_MakeAvailable(cli11 asio nlohmann_json cpp_httplib)

# libcurl — HTTP(S) URL inputs (minimal static build; SChannel on Windows, OpenSSL on Linux).
set(CMAKE_POLICY_VERSION_MINIMUM 3.5 CACHE STRING "" FORCE)
FetchContent_Declare(
    CURL
    URL https://github.com/curl/curl/releases/download/curl-8_12_1/curl-8.12.1.tar.xz
    DOWNLOAD_EXTRACT_TIMESTAMP TRUE
)
set(BUILD_CURL_EXE OFF CACHE BOOL "" FORCE)
set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
set(BUILD_TESTING OFF CACHE BOOL "" FORCE)
if(WIN32)
    set(CURL_USE_OPENSSL OFF CACHE BOOL "" FORCE)
    set(CURL_USE_SCHANNEL ON CACHE BOOL "" FORCE)
else()
    set(CURL_USE_SCHANNEL OFF CACHE BOOL "" FORCE)
    set(CURL_USE_OPENSSL ON CACHE BOOL "" FORCE)
endif()
set(CURL_ZLIB OFF CACHE BOOL "" FORCE)
set(CURL_BROTLI OFF CACHE BOOL "" FORCE)
set(CURL_ZSTD OFF CACHE BOOL "" FORCE)
set(USE_NGHTTP2 OFF CACHE BOOL "" FORCE)
set(CURL_USE_LIBSSH2 OFF CACHE BOOL "" FORCE)
set(CURL_USE_LIBPSL OFF CACHE BOOL "" FORCE)
set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
set(CURL_DISABLE_LDAPS ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(CURL)

# PicoSHA2 — header-only SHA256 for cache keys.
FetchContent_Declare(
    picosha2
    GIT_REPOSITORY https://github.com/okdshin/PicoSHA2.git
    GIT_TAG        master
    GIT_SHALLOW    TRUE
)
FetchContent_GetProperties(picosha2)
if(NOT picosha2_POPULATED)
    FetchContent_Populate(picosha2)
endif()

# p-ranav/glob — same as packages/kbot/cpp (glob / rglob for **).
FetchContent_Declare(
    pranav_glob
    GIT_REPOSITORY https://github.com/p-ranav/glob.git
    GIT_TAG        master
    GIT_SHALLOW    TRUE
)
FetchContent_GetProperties(pranav_glob)
if(NOT pranav_glob_POPULATED)
    FetchContent_Populate(pranav_glob)
endif()
add_library(pranav_glob STATIC ${pranav_glob_SOURCE_DIR}/source/glob.cpp)
target_include_directories(pranav_glob PUBLIC ${pranav_glob_SOURCE_DIR}/include)
target_compile_features(pranav_glob PUBLIC cxx_std_17)
if(MSVC)
    target_compile_options(pranav_glob PRIVATE /permissive-)
endif()

# laserpants/dotenv-cpp — load .env (same pattern as packages/kbot/cpp).
FetchContent_Declare(
    laserpants_dotenv
    GIT_REPOSITORY https://github.com/laserpants/dotenv-cpp.git
    GIT_TAG        master
    GIT_SHALLOW    TRUE
)
FetchContent_GetProperties(laserpants_dotenv)
if(NOT laserpants_dotenv_POPULATED)
    FetchContent_Populate(laserpants_dotenv)
endif()
add_library(laserpants_dotenv INTERFACE)
target_include_directories(laserpants_dotenv INTERFACE ${laserpants_dotenv_SOURCE_DIR}/include)
add_library(laserpants::dotenv ALIAS laserpants_dotenv)

find_package(Vips REQUIRED)

add_executable(media-img
    src/main.cpp
    src/core/cache.cpp
    src/core/glob_paths.cpp
    src/core/output_path.cpp
    src/core/resize.cpp
    src/core/url_fetch.cpp
    src/http/serve.cpp
    src/ipc/ipc_serve.cpp
)

target_include_directories(media-img PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/src
    ${asio_SOURCE_DIR}/asio/include
    ${picosha2_SOURCE_DIR}
)

target_compile_definitions(media-img PRIVATE
    ASIO_STANDALONE
    ASIO_NO_DEPRECATED
    CPPHTTPLIB_NO_EXCEPTIONS=0
)

if(WIN32)
    target_compile_definitions(media-img PRIVATE
        _WIN32_WINNT=0x0A00
        NOMINMAX
    )
endif()

target_link_libraries(media-img PRIVATE
    CLI11::CLI11
    nlohmann_json::nlohmann_json
    httplib::httplib
    laserpants::dotenv
    pranav_glob
    CURL::libcurl
    Vips::vips
)

# GObject (g_object_ref / g_object_unref) — not re-exported through libvips import lib on MSVC.
if(WIN32)
  file(GLOB _MEDIA_VIPS_SDK_LIST "${CMAKE_CURRENT_SOURCE_DIR}/third_party/vips-dev-*")
  if(_MEDIA_VIPS_SDK_LIST)
    list(GET _MEDIA_VIPS_SDK_LIST 0 _MEDIA_VIPS_SDK)
    if(EXISTS "${_MEDIA_VIPS_SDK}/lib/libgobject-2.0.lib")
      target_link_libraries(media-img PRIVATE
        "${_MEDIA_VIPS_SDK}/lib/libgobject-2.0.lib"
        "${_MEDIA_VIPS_SDK}/lib/libglib-2.0.lib"
      )
    endif()
  endif()
endif()

if(UNIX AND NOT APPLE)
    target_link_libraries(media-img PRIVATE pthread)
endif()

target_compile_definitions(media-img PRIVATE
    "MEDIA_IMG_VERSION=\"${PROJECT_VERSION}\""
)

# Runtime: libvips and deps are DLLs next to media-img.exe (Windows dev bundle bin/).
if(WIN32)
  file(GLOB _MEDIA_VIPS_SDK_LIST "${CMAKE_CURRENT_SOURCE_DIR}/third_party/vips-dev-*")
  if(_MEDIA_VIPS_SDK_LIST)
    list(GET _MEDIA_VIPS_SDK_LIST 0 _MEDIA_VIPS_SDK)
    if(EXISTS "${_MEDIA_VIPS_SDK}/bin")
      add_custom_command(
        TARGET media-img
        POST_BUILD
        COMMAND "${CMAKE_COMMAND}" -E copy_directory
                "${_MEDIA_VIPS_SDK}/bin"
                "${CMAKE_SOURCE_DIR}/dist"
        COMMENT "Copy libvips DLLs to dist/"
      )
    endif()
  endif()
endif()