nixpkgs/pkgs/servers/monitoring/plugins/default.nix

{ lib
, stdenv
, fetchFromGitHub
, writeShellScript
, autoreconfHook
, pkg-config
, runCommand
, coreutils
, gnugrep
, gnused
, lm_sensors
, net-snmp
, openssh
, openssl
, perl
, dnsutils
, libdbi
, libmysqlclient
, uriparser
, zlib
, openldap
, procps
, runtimeShell
}:

let
  binPath = lib.makeBinPath [
    (placeholder "out")
    "/run/wrappers"
    coreutils
    gnugrep
    gnused
    lm_sensors
    net-snmp
    procps
  ];

  mailq = runCommand "mailq-wrapper" { preferLocalBuild = true; } ''
    mkdir -p $out/bin
    ln -s /run/wrappers/bin/sendmail $out/bin/mailq
  '';

  # For unknown reasons the installer tries executing $out/share and fails so
  # we create it and remove it again later.
  share = writeShellScript "share" ''
    exit 0
  '';

in
stdenv.mkDerivation rec {
  pname = "monitoring-plugins";
  version = "2.3.0";

  src = fetchFromGitHub {
    owner = "monitoring-plugins";
    repo = "monitoring-plugins";
    rev = "v" + lib.versions.majorMinor version;
    sha256 = "sha256-yLhHOSrPFRjW701aOL8LPe4OnuJxL6f+dTxNqm0evIg=";
  };

  # TODO: Awful hack. Grrr... this of course only works on NixOS.
  # Anyway the check that configure performs to figure out the ping
  # syntax is totally impure, because it runs an actual ping to
  # localhost (which won't work for ping6 if IPv6 support isn't
  # configured on the build machine).
  #
  # --with-ping-command needs to be done here instead of in
  # configureFlags due to the spaces in the argument
  postPatch = ''
    substituteInPlace po/Makefile.in.in \
      --replace /bin/sh ${runtimeShell}

    sed -i configure.ac \
      -e 's|^DEFAULT_PATH=.*|DEFAULT_PATH=\"${binPath}\"|'

    configureFlagsArray+=(
      --with-ping-command='/run/wrappers/bin/ping -4 -n -U -w %d -c %d %s'
      --with-ping6-command='/run/wrappers/bin/ping -6 -n -U -w %d -c %d %s'
    )

    install -Dm555 ${share} $out/share
  '';

  configureFlags = [
    "--libexecdir=${placeholder "out"}/bin"
    "--with-mailq-command=${mailq}/bin/mailq"
    "--with-sudo-command=/run/wrappers/bin/sudo"
  ];

  buildInputs = [
    dnsutils
    libdbi
    libmysqlclient
    net-snmp
    openldap
    # TODO: make openssh a runtime dependency only
    openssh
    openssl
    perl
    procps
    uriparser
    zlib
  ];

  nativeBuildInputs = [ autoreconfHook pkg-config ];

  enableParallelBuilding = true;

  postInstall = ''
    rm $out/share
  '';

  meta = with lib; {
    description = "Official monitoring plugins for Nagios/Icinga/Sensu and others";
    homepage = "https://www.monitoring-plugins.org";
    license = licenses.gpl3Only;
    maintainers = with maintainers; [ thoughtpolice relrod ];
    platforms = platforms.linux;
  };
}