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* [vcpkg docs] Change how documenting port functions works Instead of using `##`, use comment blocks for documentation. Also, add some minor docs and change RST -> MD so we actually get docs generated. * add CI stuff * regenerate docs * fix vcpkg_find_acquire_program to not use _execute_process
68 lines
2.5 KiB
CMake
68 lines
2.5 KiB
CMake
#[===[.md:
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# vcpkg_internal_get_cmake_vars
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**Only for internal use in vcpkg helpers. Behavior and arguments will change without notice.**
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Runs a cmake configure with a dummy project to extract certain cmake variables
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## Usage
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```cmake
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vcpkg_internal_get_cmake_vars(
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[OUTPUT_FILE <output_file_with_vars>]
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[OPTIONS <-DUSE_THIS_IN_ALL_BUILDS=1>...]
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)
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```
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## Parameters
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### OPTIONS
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Additional options to pass to the test configure call
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### OUTPUT_FILE
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Variable to return the path to the generated cmake file with the detected `CMAKE_` variables set as `VCKPG_DETECTED_`
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## Notes
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If possible avoid usage in portfiles.
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## Examples
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* [vcpkg_configure_make](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_configure_make.cmake)
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#]===]
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function(vcpkg_internal_get_cmake_vars)
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cmake_parse_arguments(PARSE_ARGV 0 _gcv "" "OUTPUT_FILE" "OPTIONS")
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if(_gcv_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} was passed unparsed arguments: '${_gcv_UNPARSED_ARGUMENTS}'")
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endif()
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if(NOT _gcv_OUTPUT_FILE)
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message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} requires parameter OUTPUT_FILE!")
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endif()
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if(${_gcv_OUTPUT_FILE})
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debug_message("OUTPUT_FILE ${${_gcv_OUTPUT_FILE}}")
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else()
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set(DEFAULT_OUT "${CURRENT_BUILDTREES_DIR}/cmake-vars-${TARGET_TRIPLET}.cmake.log") # So that the file gets included in CI artifacts.
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set(${_gcv_OUTPUT_FILE} "${DEFAULT_OUT}" PARENT_SCOPE)
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set(${_gcv_OUTPUT_FILE} "${DEFAULT_OUT}")
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endif()
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vcpkg_configure_cmake(
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SOURCE_PATH "${SCRIPTS}/get_cmake_vars"
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OPTIONS ${_gcv_OPTIONS} "-DVCPKG_BUILD_TYPE=${VCPKG_BUILD_TYPE}"
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OPTIONS_DEBUG "-DVCPKG_OUTPUT_FILE:PATH=${CURRENT_BUILDTREES_DIR}/cmake-vars-${TARGET_TRIPLET}-dbg.cmake.log"
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OPTIONS_RELEASE "-DVCPKG_OUTPUT_FILE:PATH=${CURRENT_BUILDTREES_DIR}/cmake-vars-${TARGET_TRIPLET}-rel.cmake.log"
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PREFER_NINJA
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LOGNAME get-cmake-vars-${TARGET_TRIPLET}
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)
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set(_include_string)
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if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
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string(APPEND _include_string "include(\"${CURRENT_BUILDTREES_DIR}/cmake-vars-${TARGET_TRIPLET}-rel.cmake.log\")\n")
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endif()
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if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
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string(APPEND _include_string "include(\"${CURRENT_BUILDTREES_DIR}/cmake-vars-${TARGET_TRIPLET}-dbg.cmake.log\")\n")
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endif()
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file(WRITE "${${_gcv_OUTPUT_FILE}}" "${_include_string}")
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endfunction()
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