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38 lines
1.5 KiB
38 lines
1.5 KiB
6 months ago
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# Helper function to create tarballs for wasi-sdk.
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#
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# The `target` is the name of the CMake target to create for the creation of
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# this tarball. The `tarball` argument is where the final tarball will be
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# located. The name of the tarball is also used for the name of the root folder
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# in the tarball. The `dir` argument is is the directory that will get packaged
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# up within the tarball.
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function(wasi_sdk_add_tarball target tarball dir)
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cmake_path(GET tarball PARENT_PATH tarball_dir)
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# Run STEM twice to chop of both `.gz` and `.tar` in `.tar.gz`
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cmake_path(GET tarball STEM LAST_ONLY tarball_stem)
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cmake_path(GET tarball_stem STEM LAST_ONLY tarball_stem)
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if(CMAKE_SYSTEM_NAME MATCHES Windows)
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# Copy the contents of symlinks on Windows to avoid dealing with symlink
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set(copy_dir ${CMAKE_COMMAND} -E copy_directory ${dir} ${tarball_stem})
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else()
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# ... but on non-Windows copy symlinks themselves to cut down on
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# distribution size.
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set(copy_dir cp -R ${dir} ${tarball_stem})
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endif()
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add_custom_command(
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OUTPUT ${tarball}
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# First copy the directory under a different name, the filestem of the
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# tarball.
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COMMAND ${copy_dir}
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# Next use CMake to create the tarball itself
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COMMAND ${CMAKE_COMMAND} -E tar cfz ${tarball} ${tarball_stem}
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# Finally delete the temporary directory created above.
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COMMAND ${CMAKE_COMMAND} -E rm -rf ${tarball_stem}
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WORKING_DIRECTORY ${tarball_dir}
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COMMENT "Creating ${tarball}..."
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)
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add_custom_target(${target} DEPENDS ${tarball})
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endfunction()
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