vcpkg/scripts/cmake/vcpkg_extract_source_archive.cmake

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CMake
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include(vcpkg_execute_required_process)
function(vcpkg_extract_source_archive ARCHIVE)
if(NOT ARGC EQUAL 2)
set(WORKING_DIRECTORY ${CURRENT_BUILDTREES_DIR}/src)
else()
set(WORKING_DIRECTORY ${ARGV1})
endif()
get_filename_component(ARCHIVE_FILENAME ${ARCHIVE} NAME)
if(NOT EXISTS ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
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message(STATUS "Extracting source ${ARCHIVE}")
file(MAKE_DIRECTORY ${WORKING_DIRECTORY})
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vcpkg_execute_required_process(
COMMAND ${CMAKE_COMMAND} -E tar xjf ${ARCHIVE}
WORKING_DIRECTORY ${WORKING_DIRECTORY}
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LOGNAME extract
)
file(WRITE ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
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endif()
message(STATUS "Extracting done")
endfunction()