tracexec: Packaging improvements from #310158

{

  lib,

  rustPlatform,

  stdenv,

  fetchFromGitHub,

  rustPlatform,

  cargo-about,

  nix-update-script,

}:

rustPlatform.buildRustPackage rec {

let

  pname = "tracexec";

  version = "0.2.2";

in

rustPlatform.buildRustPackage {

  inherit pname version;

  src = fetchFromGitHub {

    owner = "kxxt";

    repo = "tracexec";

    rev = "v${version}";

    rev = "refs/tags/v${version}";

    hash = "sha256-X2hLaBndeYLBMnDe2MT4pgZiPj0COHG2uTvAbW+JVd4=";

  };

  cargoHash = "sha256-3xANOv+A4soDcKMINy+RnI8l6uS3koZpw3CMIUCmK5A=";

  # Remove test binaries and only retain tracexec

  nativeBuildInputs = [

    cargo-about

  ];

  # Remove RiscV64 specialisation when this is fixed:

  # * https://github.com/NixOS/nixpkgs/pull/310158#pullrequestreview-2046944158

  # * https://github.com/rust-vmm/seccompiler/pull/72

  cargoBuildFlags = lib.optional stdenv.hostPlatform.isRiscV64 "--no-default-features";

  preBuild = ''

    sed -i '1ino-clearly-defined = true' about.toml  # disable network requests

    cargo about generate --config about.toml -o THIRD_PARTY_LICENSES.HTML about.hbs

  '';

  # Tests don't work for native non-x86 compilation

  # because upstream overrides the name of the linker executables,

  # see https://github.com/NixOS/nixpkgs/pull/310158#issuecomment-2118845043

  doCheck = stdenv.hostPlatform.isx86_64;

  checkFlags = [

    "--skip=cli::test::log_mode_without_args_works" # `Permission denied` (needs `CAP_SYS_PTRACE`)

    "--skip=tracer::test::tracer_emits_exec_event" # needs `/bin/true`

  ];

  postInstall = ''

    # Remove test binaries (e.g. `empty-argv`, `corrupted-envp`) and only retain `tracexec`

    find "$out/bin" -type f \! -name tracexec -print0 | xargs -0 rm -v

    install -Dm644 LICENSE -t "$out/share/licenses/${pname}/"

    install -Dm644 THIRD_PARTY_LICENSES.HTML -t "$out/share/licenses/${pname}/"

  '';

  # ptrace is not allowed in sandbox

  doCheck = false;

  passthru.updateScript = nix-update-script { };

  meta = {

    changelog = "https://github.com/kxxt/tracexec/blob/v${version}/CHANGELOG.md";

    description = "A small utility for tracing execve{,at} and pre-exec behavior";

    homepage = "https://github.com/kxxt/tracexec";

    changelog = "https://github.com/kxxt/tracexec/blob/${src.rev}/CHANGELOG.md";

    license = lib.licenses.gpl2;

    maintainers = with lib.maintainers; [ fpletz ];

    license = lib.licenses.gpl2Plus;

    mainProgram = "tracexec";

    maintainers = with lib.maintainers; [ fpletz nh2 ];

    platforms = lib.platforms.linux;

  };

}