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path: root/nixpkgs/pkgs/os-specific/linux/kmod/default.nix
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{ stdenv, lib, fetchzip, autoconf, automake, docbook_xml_dtd_42
, docbook_xml_dtd_43, docbook_xsl, gtk-doc, libtool, pkg-config
, libxslt, xz, zstd, elf-header
, withDevdoc ? stdenv.hostPlatform == stdenv.buildPlatform
, withStatic ? stdenv.hostPlatform.isStatic
, gitUpdater
}:

let
  systems = [ "/run/booted-system/kernel-modules" "/run/current-system/kernel-modules" "" ];
  modulesDirs = lib.concatMapStringsSep ":" (x: "${x}/lib/modules") systems;

in stdenv.mkDerivation rec {
  pname = "kmod";
  version = "30";

  # autogen.sh is missing from the release tarball,
  # and we need to run it to regenerate gtk_doc.make,
  # because the version in the release tarball is broken.
  # Possibly this will be fixed in kmod 30?
  # https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git/commit/.gitignore?id=61a93a043aa52ad62a11ba940d4ba93cb3254e78
  src = fetchzip {
    url = "https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git/snapshot/kmod-${version}.tar.gz";
    sha256 = "sha256-/dih2LoqgRrAsVdHRwld28T8pXgqnzapnQhqkXnxbbc=";
  };

  outputs = [ "out" "dev" "lib" ] ++ lib.optional withDevdoc "devdoc";

  nativeBuildInputs = [
    autoconf automake docbook_xsl libtool libxslt pkg-config

    docbook_xml_dtd_42 # for the man pages
  ] ++ lib.optionals withDevdoc [ docbook_xml_dtd_43 gtk-doc ];
  buildInputs = [ xz zstd ];

  preConfigure = ''
    ./autogen.sh
  '';

  configureFlags = [
    "--sysconfdir=/etc"
    "--with-xz"
    "--with-zstd"
    "--with-modulesdirs=${modulesDirs}"
    (lib.enableFeature withDevdoc "gtk-doc")
  ] ++ lib.optional withStatic "--enable-static";

  patches = [ ./module-dir.patch ]
    ++ lib.optional withStatic ./enable-static.patch;

  postInstall = ''
    for prog in rmmod insmod lsmod modinfo modprobe depmod; do
      ln -sv $out/bin/kmod $out/bin/$prog
    done

    # Backwards compatibility
    ln -s bin $out/sbin
  '';

  passthru.updateScript = gitUpdater {
    inherit pname version;
    # No nicer place to find latest release.
    url = "https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git";
    rev-prefix = "v";
  };

  meta = with lib; {
    description = "Tools for loading and managing Linux kernel modules";
    longDescription = ''
      kmod is a set of tools to handle common tasks with Linux kernel modules
      like insert, remove, list, check properties, resolve dependencies and
      aliases. These tools are designed on top of libkmod, a library that is
      shipped with kmod.
    '';
    homepage = "https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git/";
    downloadPage = "https://www.kernel.org/pub/linux/utils/kernel/kmod/";
    changelog = "https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git/plain/NEWS?h=v${version}";
    license = with licenses; [ lgpl21Plus gpl2Plus ]; # GPLv2+ for tools
    platforms = platforms.linux;
    maintainers = with maintainers; [ artturin ];
  };
}