sysdig-cli-scanner: do not use `--dbpath` arg when `--iac` is set (#337736)

  stdenv,

  lib,

  fetchurl,

  makeWrapper,

  writeShellScript,

}:

let

  versionMetadata = import ./sysdig-cli-scanner.versions.nix;

  fetchForSystem = versionMetadata.${stdenv.system} or (throw "unsupported system ${stdenv.system}");

  wrapper = writeShellScript "sysdig-cli-scanner-wrapper" ''

    for arg in "$@"; do

      # We must not pass --dbpath to the cli in case it has been called with --iac

      # IaC Scanning does not make use of the vulnerability database

      if [ "$arg" = "--iac" ]; then

        exec @out@/libexec/sysdig-cli-scanner-unwrapped "$@"

      fi

    done

    # --dbpath argument is needed for vulnerability scanning mode, otherwise it tries to download

    # the vulnerability database in the same path as the binary, which is read-only in the case of the

    # nix store

    exec @out@/libexec/sysdig-cli-scanner-unwrapped \

      --dbpath="$HOME/.cache/sysdig-cli-scanner/" "$@"

  '';

in

stdenv.mkDerivation {

  pname = "sysdig-cli-scanner";

  version = versionMetadata.version;

  src = fetchurl { inherit (fetchForSystem) url hash; };

  nativeBuildInputs = [ makeWrapper ];

  dontUnpack = true;

  installPhase = ''

    runHook preInstall

    install -Dm755 -T $src $out/bin/sysdig-cli-scanner

    wrapProgram $out/bin/sysdig-cli-scanner \

      --add-flags --dbpath="\$HOME/.cache/sysdig-cli-scanner/"

    install -Dm755 -T $src $out/libexec/sysdig-cli-scanner-unwrapped

    install -Dm755 -T ${wrapper} $out/bin/sysdig-cli-scanner

    substituteInPlace $out/bin/sysdig-cli-scanner --subst-var out

    runHook postInstall

  '';