# Minimum version imposed by Ubuntu:20.04
cmake_minimum_required( VERSION 3.16.3 )

project(exiv2          # use TWEAK to categorize the build
    VERSION 1.00.0.9   # 1.00.0    = GM               (tagged and released)
                       # 1.00.0.9  = 1.00.0 Development
                       # 1.00.0.00 = GM Preview
                       # 1.00.0.2  = RC2              (tagged and released)
                       # 1.00.0.20 = RC2 Preview
                       # 1.00.0.29 = RC2 Development
    DESCRIPTION    "Exif/IPTC/Xmp C++ metadata library and tools plus ICC Profiles, Previews and more."
    LANGUAGES C CXX
)

# Shared Object versioning (SemVer-like: must bump major on API breakage)
if(PROJECT_VERSION_MAJOR EQUAL 0)
  # support legacy scheme (e.g. 0.27.x -> 27)
  set(EXIV2LIB_SOVERSION ${PROJECT_VERSION_MINOR})
else()
  # restart from 30
  math(EXPR EXIV2LIB_SOVERSION "30 + (${PROJECT_VERSION_MAJOR} - 1)")
endif()

if(NOT CMAKE_BUILD_TYPE)
  set (CMAKE_BUILD_TYPE Release)
endif()

include(cmake/mainSetup.cmake  REQUIRED)

# options and their default values
option( BUILD_SHARED_LIBS             "Build exiv2lib as a shared library"                    ON  )
option( EXIV2_ENABLE_XMP              "Build with XMP metadata support"                       ON  )
option( EXIV2_ENABLE_EXTERNAL_XMP     "Use external version of XMP"                           OFF )
option( EXIV2_ENABLE_PNG              "Build with PNG support (requires zlib)"                ON  )
option( EXIV2_ENABLE_NLS              "Build native language support (requires gettext)"      OFF )
option( EXIV2_ENABLE_LENSDATA         "Build including Nikon lens data"                       ON  )
option( EXIV2_ENABLE_DYNAMIC_RUNTIME  "Use dynamic runtime (used for static libs)"            ON  )
option( EXIV2_ENABLE_WEBREADY         "Build webready support into library"                   OFF )
option( EXIV2_ENABLE_CURL             "Use libcurl for HttpIo (WEBREADY)"                     OFF )
option( EXIV2_ENABLE_BMFF             "Build with BMFF support"                               ON  )
option( EXIV2_ENABLE_BROTLI           "Use Brotli for JPEG XL compressed boxes (BMFF)"        ON  )
option( EXIV2_ENABLE_VIDEO            "Build with video support"                              ON )
option( EXIV2_ENABLE_INIH             "Use inih library"                                      ON  )

option( EXIV2_BUILD_SAMPLES           "Build sample applications"                             OFF )
option( EXIV2_BUILD_EXIV2_COMMAND     "Build exiv2 command-line executable"                   ON  )
option( EXIV2_BUILD_UNIT_TESTS        "Build unit tests"                                      OFF )
option( EXIV2_BUILD_FUZZ_TESTS        "Build fuzz tests (libFuzzer)"                          OFF )
option( EXIV2_BUILD_DOC               "Add 'doc' target to generate documentation"            OFF )

# Only intended to be used by Exiv2 developers/contributors
option( EXIV2_TEAM_EXTRA_WARNINGS     "Add more sanity checks using compiler flags"           OFF )
option( EXIV2_TEAM_WARNINGS_AS_ERRORS "Treat warnings as errors"                              OFF )
option( EXIV2_TEAM_USE_SANITIZERS     "Enable ASAN and UBSAN when available"                  OFF )

# The EXIV2_TEAM_OSS_FUZZ option is used by the OSS-Fuzz build script:
# https://github.com/google/oss-fuzz/tree/master/projects/exiv2/build.sh
option( EXIV2_TEAM_OSS_FUZZ           "Build config for OSS-Fuzz"                             OFF )

option( EXIV2_TEAM_PACKAGING          "Additional stuff for generating packages"              OFF )
set(EXTRA_COMPILE_FLAGS " ")

mark_as_advanced(
    EXIV2_TEAM_EXTRA_WARNINGS
    EXIV2_TEAM_WARNINGS_AS_ERRORS
    EXIV2_ENABLE_EXTERNAL_XMP
    EXTRA_COMPILE_FLAGS
    EXIV2_TEAM_USE_SANITIZERS
)

option( BUILD_WITH_STACK_PROTECTOR    "Build with stack protector"                            ON )
option( BUILD_WITH_CCACHE             "Use ccache to speed up compilations"                   OFF )
option( BUILD_WITH_COVERAGE           "Add compiler flags to generate coverage stats"         OFF )
include(cmake/gcovr.cmake REQUIRED)

set( PACKAGE_URL                      "https://exiv2.org")

if ( EXIV2_ENABLE_EXTERNAL_XMP )
  set(EXIV2_ENABLE_XMP OFF)
endif()

if( EXIV2_BUILD_UNIT_TESTS )
  set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) # Requires CMake 3.3.3
endif()

include(cmake/findDependencies.cmake   REQUIRED)
include(cmake/compilerFlags.cmake      REQUIRED)
include(cmake/generateConfigFile.cmake REQUIRED)

if (EXIV2_BUILD_DOC)
  include(cmake/generateDoc.cmake        REQUIRED)
  generate_documentation("${PROJECT_SOURCE_DIR}/cmake/Doxyfile.in")
endif()

include_directories(${CMAKE_BINARY_DIR})  # Make the exv_conf.h file visible for the full project

if( EXIV2_ENABLE_XMP )
  add_subdirectory( xmpsdk )
endif()

include(cmake/compilerFlagsExiv2.cmake REQUIRED)

add_subdirectory( src )

if( EXIV2_BUILD_UNIT_TESTS )
  add_subdirectory ( unitTests )
endif()

if( EXIV2_BUILD_FUZZ_TESTS )
  add_subdirectory ( fuzz )
endif()

if(EXIV2_BUILD_EXIV2_COMMAND)
  add_subdirectory ( app )

if( EXIV2_BUILD_SAMPLES )
    add_subdirectory( samples )
    get_directory_property(SAMPLES DIRECTORY samples DEFINITION APPLICATIONS)

    if (Python3_Interpreter_FOUND)
      add_test(NAME bashTests
          WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
          COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose bash_tests)
    endif()
endif()

if (Python3_Interpreter_FOUND)
    add_test(NAME bugfixTests
        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
        COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose bugfixes)
    add_test(NAME lensTests
        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
        COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose lens_tests)
    add_test(NAME tiffTests
        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
        COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose tiff_test)
    add_test(NAME versionTests
        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
        COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose bash_tests/version_test.py )
    add_test(NAME regressionTests
        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/tests
        COMMAND cmake -E env EXIV2_BINDIR=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${Python3_EXECUTABLE} runner.py --verbose regression_tests)
endif()

endif()

if( EXIV2_ENABLE_NLS )
  add_subdirectory( po )
endif()

if (EXIV2_TEAM_PACKAGING)
  include(cmake/packaging.cmake)
endif()

# Handle both relative and absolute paths (e.g. NixOS) for a relocatable package
if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
    set(libdir_for_pc_file "${CMAKE_INSTALL_LIBDIR}")
else()
    join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
endif()
if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
    set(includedir_for_pc_file "${CMAKE_INSTALL_INCLUDEDIR}")
else()
    join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
endif()
configure_file(cmake/exiv2.pc.in exiv2.pc @ONLY)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/exiv2.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

# ******************************************************************************
# Man page
install( FILES ${PROJECT_SOURCE_DIR}/man/man1/exiv2.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 )

include(cmake/printSummary.cmake)

# That's all Folks!
##