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nixpkgs/pkgs/games/stockfish/default.nix
Thibault Duplessis 529157ef28 stockfish: 16 -> 16.1
Stockfish 16.1 now uses 2 NNUE files:
https://stockfishchess.org/blog/2024/stockfish-16-1/
2024-08-12 15:14:00 +02:00

65 lines
2.1 KiB
Nix

{ lib, stdenv, fetchurl, fetchFromGitHub }:
let
# The x86-64-modern may need to be refined further in the future
# but stdenv.hostPlatform CPU flags do not currently work on Darwin
# https://discourse.nixos.org/t/darwin-system-and-stdenv-hostplatform-features/9745
archDarwin = if stdenv.isx86_64 then "x86-64-modern" else "apple-silicon";
arch = if stdenv.isDarwin then archDarwin else
if stdenv.isx86_64 then "x86-64" else
if stdenv.isi686 then "x86-32" else
if stdenv.isAarch64 then "armv8" else
"unknown";
# These files can be found in src/evaluate.h
nnueBigFile = "nn-b1a57edbea57.nnue";
nnueBig = fetchurl {
name = nnueBigFile;
url = "https://tests.stockfishchess.org/api/nn/${nnueBigFile}";
sha256 = "sha256-saV+2+pXTKi4jWg3RzhFeRvrU9iF+H+G1czdVln787I=";
};
nnueSmallFile = "nn-baff1ede1f90.nnue";
nnueSmall = fetchurl {
name = nnueSmallFile;
url = "https://tests.stockfishchess.org/api/nn/${nnueSmallFile}";
sha256 = "sha256-uv8e3h+Qwd0bT3cvHv8phIghgB6BhjRdp/DrQSG9b2M=";
};
in
stdenv.mkDerivation rec {
pname = "stockfish";
version = "16.1";
src = fetchFromGitHub {
owner = "official-stockfish";
repo = "Stockfish";
rev = "sf_${version}";
sha256 = "sha256-xTtjfJgEHF0SQT9Fw/9RLZA0Quh00jrIbihr7IYCm2U=";
};
postUnpack = ''
sourceRoot+=/src
cp "${nnueBig}" "$sourceRoot/${nnueBigFile}"
cp "${nnueSmall}" "$sourceRoot/${nnueSmallFile}"
'';
makeFlags = [ "PREFIX=$(out)" "ARCH=${arch}" "CXX=${stdenv.cc.targetPrefix}c++" ];
buildFlags = [ "build" ];
enableParallelBuilding = true;
meta = with lib; {
homepage = "https://stockfishchess.org/";
description = "Strong open source chess engine";
mainProgram = "stockfish";
longDescription = ''
Stockfish is one of the strongest chess engines in the world. It is also
much stronger than the best human chess grandmasters.
'';
maintainers = with maintainers; [ luispedro siraben ];
platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
license = licenses.gpl3Only;
};
}