build.nix

{ lib, stdenv, pkg-config, attr, libuuid, libsodium, keyutils, liburcu, zlib
, libaio, udev, zstd, lz4, nix-gitignore, rustPlatform, rustc, cargo, fuse3
, fuseSupport ? false, }:
let
  src = nix-gitignore.gitignoreSource [ ] ./.;

  commit = lib.strings.substring 0 7 (builtins.readFile ./.bcachefs_revision);
  version = "git-${commit}";
in stdenv.mkDerivation {
  inherit src version;

  pname = "bcachefs-tools";

  nativeBuildInputs = [
    pkg-config
    cargo
    rustc
    rustPlatform.cargoSetupHook
    rustPlatform.bindgenHook
  ];

  buildInputs = [
    libaio
    keyutils # libkeyutils
    lz4 # liblz4

    libsodium
    liburcu
    libuuid
    zstd # libzstd
    zlib # zlib1g
    attr
    udev
  ] ++ lib.optional fuseSupport fuse3;

  BCACHEFS_FUSE = if fuseSupport then "1" else "";

  cargoRoot = "rust-src";
  # when git-based crates are updated, run:
  # nix run github:Mic92/nix-update -- --version=skip --flake default
  # to update the hashes
  cargoDeps = rustPlatform.importCargoLock {
    lockFile = "${src}/rust-src/Cargo.lock";
    outputHashes = {
      "bindgen-0.64.0" = "sha256-GNG8as33HLRYJGYe0nw6qBzq86aHiGonyynEM7gaEE4=";
    };
  };

  makeFlags = [ "DESTDIR=${placeholder "out"}" "PREFIX=" "VERSION=${commit}" ];

  dontStrip = true;
  checkPhase = "./bcachefs version";
  doCheck = true;

  meta = {
    mainProgram = "bcachefs";
    license = lib.licenses.gpl2Only;
  };
}