args@
{ version
, sha256
, url ? ""
, name ? ""
, developerProgram ? false
, runPatches ? []
, autoPatchelfHook
, autoAddOpenGLRunpathHook
, addOpenGLRunpath
, alsa-lib
, expat
, fetchurl
, fontconfig
, freetype
, gdk-pixbuf
, glib
, glibc
, gtk2
, lib
, libxkbcommon
, libkrb5
, krb5
, makeWrapper
, ncurses5
, numactl
, nss
, perl
, python3 # FIXME: CUDAToolkit 10 may still need python27
, pulseaudio
, requireFile
, stdenv
, backendStdenv # E.g. gcc11Stdenv, set in extension.nix
, unixODBC
, wayland
, xorg
, zlib
, freeglut
, libGLU
, libsForQt5
, libtiff
, qt6Packages
, rdma-core
, ucx
, rsync
}:

backendStdenv.mkDerivation rec {
  pname = "cudatoolkit";
  inherit version runPatches;

  dontPatchELF = true;
  dontStrip = true;

  src =
    if developerProgram then
      requireFile {
        message = ''
          This nix expression requires that ${args.name} is already part of the store.
          Register yourself to NVIDIA Accelerated Computing Developer Program, retrieve the CUDA toolkit
          at https://developer.nvidia.com/cuda-toolkit, and run the following command in the download directory:
          nix-prefetch-url file://\$PWD/${args.name}
        '';
        inherit (args) name sha256;
      }
    else
      fetchurl {
        inherit (args) url sha256;
      };

  outputs = [ "out" "lib" "doc" ];

  nativeBuildInputs = [
    perl
    makeWrapper
    rsync
    addOpenGLRunpath
    autoPatchelfHook
    autoAddOpenGLRunpathHook
  ] ++ lib.optionals (lib.versionOlder version "11") [
    libsForQt5.wrapQtAppsHook
  ] ++ lib.optionals (lib.versionAtLeast version "11.8") [
    qt6Packages.wrapQtAppsHook
  ];
  buildInputs = lib.optionals (lib.versionOlder version "11") [
    libsForQt5.qt5.qtwebengine
    freeglut
    libGLU
  ] ++ [
    # To get $GDK_PIXBUF_MODULE_FILE via setup-hook
    gdk-pixbuf

    # For autoPatchelf
    ncurses5
    expat
    python3
    zlib
    glibc
    xorg.libX11
    xorg.libXext
    xorg.libXrender
    xorg.libXt
    xorg.libXtst
    xorg.libXi
    xorg.libXext
    xorg.libXdamage
    xorg.libxcb
    xorg.xcbutilimage
    xorg.xcbutilrenderutil
    xorg.xcbutilwm
    xorg.xcbutilkeysyms
    pulseaudio
    libxkbcommon
    libkrb5
    krb5
    gtk2
    glib
    fontconfig
    freetype
    numactl
    nss
    unixODBC
    alsa-lib
    wayland
  ] ++ lib.optionals (lib.versionAtLeast version "11.8") [
    (lib.getLib libtiff)
    qt6Packages.qtwayland
    rdma-core
    ucx
    xorg.libxshmfence
    xorg.libxkbfile
  ];

  # Prepended to runpaths by autoPatchelf.
  # The order inherited from older rpath preFixup code
  runtimeDependencies = [
    (placeholder "lib")
    (placeholder "out")
    "${placeholder "out"}/nvvm"
    # NOTE: use the same libstdc++ as the rest of nixpkgs, not from backendStdenv
    "${lib.getLib stdenv.cc.cc}/lib64"
    "${placeholder "out"}/jre/lib/amd64/jli"
    "${placeholder "out"}/lib64"
    "${placeholder "out"}/nvvm/lib64"
  ];

  autoPatchelfIgnoreMissingDeps = [
    # This is the hardware-dependent userspace driver that comes from
    # nvidia_x11 package. It must be deployed at runtime in
    # /run/opengl-driver/lib or pointed at by LD_LIBRARY_PATH variable, rather
    # than pinned in runpath
    "libcuda.so.1"

    # The krb5 expression ships libcom_err.so.3 but cudatoolkit asks for the
    # older
    # This dependency is asked for by target-linux-x64/CollectX/RedHat/x86_64/libssl.so.10
    # - do we even want to use nvidia-shipped libssl?
    "libcom_err.so.2"
  ];

  unpackPhase = ''
    sh $src --keep --noexec

    ${lib.optionalString (lib.versionOlder version "10.1") ''
      cd pkg/run_files
      sh cuda-linux*.run --keep --noexec
      sh cuda-samples*.run --keep --noexec
      mv pkg ../../$(basename $src)
      cd ../..
      rm -rf pkg

      for patch in $runPatches; do
        sh $patch --keep --noexec
        mv pkg $(basename $patch)
      done
    ''}
  '';

  installPhase = ''
    runHook preInstall
    mkdir $out
    ${lib.optionalString (lib.versionOlder version "10.1") ''
    cd $(basename $src)
    export PERL5LIB=.
    perl ./install-linux.pl --prefix="$out"
    cd ..
    for patch in $runPatches; do
      cd $(basename $patch)
      perl ./install_patch.pl --silent --accept-eula --installdir="$out"
      cd ..
    done
    ''}
    ${lib.optionalString (lib.versionAtLeast version "10.1" && lib.versionOlder version "11") ''
      cd pkg/builds/cuda-toolkit
      mv * $out/
    ''}
    ${lib.optionalString (lib.versionAtLeast version "11") ''
      mkdir -p $out/bin $out/lib64 $out/include $doc
      for dir in pkg/builds/* pkg/builds/cuda_nvcc/nvvm pkg/builds/cuda_cupti/extras/CUPTI; do
        if [ -d $dir/bin ]; then
          mv $dir/bin/* $out/bin
        fi
        if [ -d $dir/doc ]; then
          (cd $dir/doc && find . -type d -exec mkdir -p $doc/\{} \;)
          (cd $dir/doc && find . \( -type f -o -type l \) -exec mv \{} $doc/\{} \;)
        fi
        if [ -L $dir/include ] || [ -d $dir/include ]; then
          (cd $dir/include && find . -type d -exec mkdir -p $out/include/\{} \;)
          (cd $dir/include && find . \( -type f -o -type l \) -exec mv \{} $out/include/\{} \;)
        fi
        if [ -L $dir/lib64 ] || [ -d $dir/lib64 ]; then
          (cd $dir/lib64 && find . -type d -exec mkdir -p $out/lib64/\{} \;)
          (cd $dir/lib64 && find . \( -type f -o -type l \) -exec mv \{} $out/lib64/\{} \;)
        fi
      done
      mv pkg/builds/cuda_nvcc/nvvm $out/nvvm

      mv pkg/builds/cuda_sanitizer_api $out/cuda_sanitizer_api
      ln -s $out/cuda_sanitizer_api/compute-sanitizer/compute-sanitizer $out/bin/compute-sanitizer

      mv pkg/builds/nsight_systems/target-linux-x64 $out/target-linux-x64
      mv pkg/builds/nsight_systems/host-linux-x64 $out/host-linux-x64
      rm $out/host-linux-x64/libstdc++.so*
    ''}
      ${lib.optionalString (lib.versionAtLeast version "11.8")
      # error: auto-patchelf could not satisfy dependency libtiff.so.5 wanted by /nix/store/.......-cudatoolkit-12.0.1/host-linux-x64/Plugins/imageformats/libqtiff.so
      # we only ship libtiff.so.6, so let's use qt plugins built by Nix.
      # TODO: don't copy, come up with a symlink-based "merge"
    ''
      rsync ${lib.getLib qt6Packages.qtimageformats}/lib/qt-6/plugins/ $out/host-linux-x64/Plugins/ -aP
    ''}

    rm -f $out/tools/CUDA_Occupancy_Calculator.xls # FIXME: why?

    ${lib.optionalString (lib.versionOlder version "10.1") ''
    # let's remove the 32-bit libraries, they confuse the lib64->lib mover
    rm -rf $out/lib
    ''}

    # Remove some cruft.
    ${lib.optionalString ((lib.versionAtLeast version "7.0") && (lib.versionOlder version "10.1"))
      "rm $out/bin/uninstall*"}

    # Fixup path to samples (needed for cuda 6.5 or else nsight will not find them)
    if [ -d "$out"/cuda-samples ]; then
        mv "$out"/cuda-samples "$out"/samples
    fi

    # Change the #error on GCC > 4.9 to a #warning.
    sed -i $out/include/host_config.h -e 's/#error\(.*unsupported GNU version\)/#warning\1/'

    # Fix builds with newer glibc version
    sed -i "1 i#define _BITS_FLOATN_H" "$out/include/host_defines.h"
  '' +
  # Point NVCC at a compatible compiler
  # FIXME: redist cuda_nvcc copy-pastes this code
  # Refer to comments in the overrides for cuda_nvcc for explanation
  # CUDA_TOOLKIT_ROOT_DIR is legacy,
  # Cf. https://cmake.org/cmake/help/latest/module/FindCUDA.html#input-variables
  # NOTE: We unconditionally set -Xfatbin=-compress-all, which reduces the size of the compiled
  #   binaries. If binaries grow over 2GB, they will fail to link. This is a problem for us, as
  #   the default set of CUDA capabilities we build can regularly cause this to occur (for
  #   example, with Magma).
  ''
    mkdir -p $out/nix-support
    cat <<EOF >> $out/nix-support/setup-hook
    cmakeFlags+=' -DCUDA_TOOLKIT_ROOT_DIR=$out'
    cmakeFlags+=' -DCUDA_HOST_COMPILER=${backendStdenv.cc}/bin'
    cmakeFlags+=' -DCMAKE_CUDA_HOST_COMPILER=${backendStdenv.cc}/bin'
    if [ -z "\''${CUDAHOSTCXX-}" ]; then
      export CUDAHOSTCXX=${backendStdenv.cc}/bin;
    fi
    export NVCC_PREPEND_FLAGS+=' --compiler-bindir=${backendStdenv.cc}/bin -Xfatbin=-compress-all'
    EOF

    # Move some libraries to the lib output so that programs that
    # depend on them don't pull in this entire monstrosity.
    mkdir -p $lib/lib
    mv -v $out/lib64/libcudart* $lib/lib/

    # Remove OpenCL libraries as they are provided by ocl-icd and driver.
    rm -f $out/lib64/libOpenCL*
    ${lib.optionalString (lib.versionAtLeast version "10.1" && (lib.versionOlder version "11")) ''
      mv $out/lib64 $out/lib
      mv $out/extras/CUPTI/lib64/libcupti* $out/lib
    ''}

    # nvprof do not find any program to profile if LD_LIBRARY_PATH is not set
    wrapProgram $out/bin/nvprof \
      --prefix LD_LIBRARY_PATH : $out/lib
  '' + lib.optionalString (lib.versionOlder version "8.0") ''
    # Hack to fix building against recent Glibc/GCC.
    echo "NIX_CFLAGS_COMPILE+=' -D_FORCE_INLINES'" >> $out/nix-support/setup-hook
  '' + ''
    runHook postInstall
  '';

  postInstall = ''
    for b in nvvp ${lib.optionalString (lib.versionOlder version "11") "nsight"}; do
      wrapProgram "$out/bin/$b" \
        --set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE"
    done
  '';


  # cuda-gdb doesn't run correctly when not using sandboxing, so
  # temporarily disabling the install check.  This should be set to true
  # when we figure out how to get `cuda-gdb --version` to run correctly
  # when not using sandboxing.
  doInstallCheck = false;
  postInstallCheck = let
  in ''
    # Smoke test binaries
    pushd $out/bin
    for f in *; do
      case $f in
        crt)                           continue;;
        nvcc.profile)                  continue;;
        nsight_ee_plugins_manage.sh)   continue;;
        uninstall_cuda_toolkit_6.5.pl) continue;;
        computeprof|nvvp|nsight)       continue;; # GUIs don't feature "--version"
        *)                             echo "Executing '$f --version':"; ./$f --version;;
      esac
    done
    popd
  '';
  passthru = {
    inherit (backendStdenv) cc;
    majorMinorVersion = lib.versions.majorMinor version;
    majorVersion = lib.versions.majorMinor version;
  };

  meta = with lib; {
    description = "A compiler for NVIDIA GPUs, math libraries, and tools";
    homepage = "https://developer.nvidia.com/cuda-toolkit";
    platforms = [ "x86_64-linux" ];
    license = licenses.unfree;
    maintainers = teams.cuda.members;
  };
}