nixpkgs/pkgs/development/libraries/isa-l/default.nix

{ lib, stdenv, fetchFromGitHub, runCommand, autoreconfHook, nix, nasm }:

stdenv.mkDerivation (finalAttrs: {
  pname = "isa-l";
  version = "2.31.0-unstable-2024-04-25";

  src = fetchFromGitHub {
    owner = "intel";
    repo = "isa-l";
    rev = "dbaf284e112bea1b90983772a3164e794b923aaf";
    sha256 = "sha256-eM1K3uObb4eZq0nSfafltp5DuZIDwknUYj9CdLn14lY=";
  };

  nativeBuildInputs = [ nasm autoreconfHook ];

  preConfigure = ''
    export AS=nasm
  '';

  passthru = {
    tests = {
      igzip = runCommand "test-isa-l-igzip" {
        nativeBuildInputs = [
          finalAttrs.finalPackage
        ];
        sample = runCommand "nixpkgs-lib.nar" {
          nativeBuildInputs = [ nix ];
        } ''
          nix nar --extra-experimental-features nix-command pack ${../../../../lib} > "$out"
        '';
        meta = {
          description = "Cross validation of igzip provided by isa-l with gzip";
        };
      } ''
        HASH_ORIGINAL="$(cat "$sample" | sha256sum | cut -d" " -f1)"
        HASH_COMPRESSION_TEST="$(igzip -c "$sample" | gzip -d -c | sha256sum | cut -d" " -f1)"
        HASH_DECOMPRESSION_TEST="$(gzip -c "$sample" | igzip -d -c | sha256sum | cut -d" " -f1)"
        if [[ "$HASH_COMPRESSION_TEST" != "$HASH_ORIGINAL" ]] || [[ "$HASH_DECOMPRESSION_TEST" != "$HASH_ORIGINAL" ]]; then
          if [[ "HASH_COMPRESSION_TEST" != "$HASH_ORIGINAL" ]]; then
            echo "The igzip-compressed file does not decompress to the original file." 1>&2
          fi
          if [[ "HASH_DECOMPRESSION_TEST" != "$HASH_ORIGINAL" ]]; then
            echo "igzip does not decompress the gzip-compressed archive to the original file." 1>&2
          fi
          echo "SHA256 checksums:" 1>&2
          printf '  original file:\t%s\n' "$HASH_ORIGINAL" 1>&2
          printf '  compression test:\t%s\n' "$HASH_COMPRESSION_TEST" 1>&2
          printf '  decompression test:\t%s\n' "$HASH_DECOMPRESSION_TEST" 1>&2
          exit 1
        fi
        touch "$out"
      '';
    };
  };

  meta = {
    description = "Collection of optimised low-level functions targeting storage applications";
    mainProgram = "igzip";
    license = lib.licenses.bsd3;
    homepage = "https://github.com/intel/isa-l";
    maintainers = with lib.maintainers; [ jbedo ];
    platforms = lib.platforms.all;
  };
})