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## # vcpkg_configure_gn
##
## Generate Ninja (GN) targets
##
## ## Usage:
## ```cmake
## vcpkg_configure_gn(
## SOURCE_PATH <SOURCE_PATH>
## [OPTIONS <OPTIONS>]
## [OPTIONS_DEBUG <OPTIONS_DEBUG>]
## [OPTIONS_RELEASE <OPTIONS_RELEASE>]
## )
## ```
##
## ## Parameters:
## ### SOURCE_PATH (required)
## The path to the GN project.
##
## ### OPTIONS
## Options to be passed to both the debug and release targets.
## Note: Must be provided as a space-separated string.
##
## ### OPTIONS_DEBUG (space-separated string)
## Options to be passed to the debug target.
##
## ### OPTIONS_RELEASE (space-separated string)
## Options to be passed to the release target.
function(vcpkg_configure_gn)
cmake_parse_arguments(_vcg "" "SOURCE_PATH;OPTIONS;OPTIONS_DEBUG;OPTIONS_RELEASE" "" ${ARGN})
if(NOT DEFINED _vcg_SOURCE_PATH)
message(FATAL_ERROR "SOURCE_PATH must be specified.")
endif()
vcpkg_find_acquire_program(PYTHON2)
get_filename_component(PYTHON2_DIR "${PYTHON2}" DIRECTORY)
vcpkg_add_to_path(PREPEND "${PYTHON2_DIR}")
vcpkg_find_acquire_program(GN)
function(generate CONFIG ARGS)
message(STATUS "Generating build (${CONFIG})...")
vcpkg_execute_required_process(
COMMAND "${GN}" gen "${CURRENT_BUILDTREES_DIR}/${CONFIG}" "${ARGS}"
WORKING_DIRECTORY "${SOURCE_PATH}"
LOGNAME generate-${CONFIG}
)
endfunction()
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
generate(${TARGET_TRIPLET}-dbg "--args=${_vcg_OPTIONS} ${_vcg_OPTIONS_DEBUG}")
endif()
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
generate(${TARGET_TRIPLET}-rel "--args=${_vcg_OPTIONS} ${_vcg_OPTIONS_RELEASE}")
endif()
endfunction()
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