646b892680
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27 lines
884 B
Nix
27 lines
884 B
Nix
{
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pkgs ? import <nixpkgs> { },
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feature,
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}:
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pkgs.runCommandNoCC "${feature}-present" { requiredSystemFeatures = [ feature ]; } ''
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if [[ ! -e /${feature}-files ]]; then
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echo "The host declares ${feature} support, but doesn't expose /${feature}-files" >&2
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exit 1
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fi
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libcudaLocation=/run/opengl-driver/lib/libcuda.so
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if [[ -e "$libcudaLocation" || -h "$libcudaLocation" ]] ; then
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true # we're good
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else
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echo "The host declares ${feature} support, but it the hook fails to handle the hostPath != guestPath cases" >&2
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exit 1
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fi
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if cat "$libcudaLocation" | xargs test fakeContent = ; then
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true # we're good
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else
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echo "The host declares ${feature} support, but it seems to fail to follow symlinks" >&2
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echo "The content of /run/opengl-driver/lib/libcuda.so is: $(cat /run/opengl-driver/lib/libcuda.so)" >&2
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exit 1
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fi
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touch $out
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''
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