isa-l: add package tests for igzip

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

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

stdenv.mkDerivation (finalAttrs: {

  pname = "isa-l";

    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";