70 lines
2.7 KiB
Ruby
70 lines
2.7 KiB
Ruby
class Lc0 < Formula
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desc "Open source neural network based chess engine"
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homepage "https://lczero.org/"
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url "https://github.com/LeelaChessZero/lc0.git",
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tag: "v0.29.0",
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revision: "afdd67c2186f1f29893d495750661a871f7aa9ac"
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license "GPL-3.0-or-later"
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bottle do
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sha256 cellar: :any_skip_relocation, arm64_ventura: "4207b3c56b8f65325b3c9782709acbbf7e8f4d93506b8496915f698d47146236"
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sha256 cellar: :any_skip_relocation, arm64_monterey: "bae2d59b3ac882fececa7710510016b12dd6b57d2d580874efe396ddb799a17a"
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sha256 cellar: :any_skip_relocation, arm64_big_sur: "529596b859865c633ea43260221fa74fbd1b8ddbd3d2b060ed10bca556d87d00"
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sha256 cellar: :any_skip_relocation, ventura: "99df228e19fd20db746645acb4cd25f4bdd5a6d26fcac45006fd2e7fb1914333"
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sha256 cellar: :any_skip_relocation, monterey: "55df9f9ee77017ddf717361595fcd0267ab1df6f06e515ba3ea19eccd7c35fde"
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sha256 cellar: :any_skip_relocation, big_sur: "4decdac18080cd1a01fad5d8b2e263847d6e51feceb3ec7d4ec010e6c8eae887"
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sha256 cellar: :any_skip_relocation, x86_64_linux: "1c788dcf4a6b1acfa7d96d1cc80fb0dd4c20b049b840a6068c19e52c729cdf7b"
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end
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depends_on "cmake" => :build
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depends_on "meson" => :build
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depends_on "ninja" => :build
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depends_on "pkg-config" => :build
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depends_on "python@3.10" => :build # required to compile .pb files
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depends_on "eigen"
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uses_from_macos "zlib"
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on_linux do
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depends_on "openblas"
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end
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fails_with gcc: "5" # for C++17
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# Currently we use "42850" network with 20 blocks x 256 filters
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# from https://lczero.org/play/networks/bestnets/
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resource "network" do
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url "https://training.lczero.org/get_network?sha=00af53b081e80147172e6f281c01daf5ca19ada173321438914c730370aa4267", using: :nounzip
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sha256 "12df03a12919e6392f3efbe6f461fc0ff5451b4105f755503da151adc7ab6d67"
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end
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def install
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args = ["-Dgtest=false"]
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# Disable metal backend for older macOS
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# Ref https://github.com/LeelaChessZero/lc0/issues/1814
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args << "-Dmetal=disabled" if MacOS.version <= :big_sur
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if OS.linux?
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args << "-Dopenblas_include=#{Formula["openblas"].opt_include}"
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args << "-Dopenblas_libdirs=#{Formula["openblas"].opt_lib}"
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end
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system "meson", *std_meson_args, *args, "build/release"
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cd "build/release" do
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system "ninja", "-v"
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libexec.install "lc0"
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end
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bin.write_exec_script libexec/"lc0"
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resource("network").stage { libexec.install Dir["*"].first => "42850.pb.gz" }
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end
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test do
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assert_match "Creating backend [blas]",
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shell_output("lc0 benchmark --backend=blas --nodes=1 --num-positions=1 2>&1")
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assert_match "Creating backend [eigen]",
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shell_output("lc0 benchmark --backend=eigen --nodes=1 --num-positions=1 2>&1")
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end
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end
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