leela-zero 0.17 (new formula)

Closes #38743.

Signed-off-by: Izaak Beekman <zbeekman@gmail.com>

Formula/leela-zero.rb

@@ -0,0 +1,31 @@
+class LeelaZero < Formula
+  desc "Neural Network Go engine with no human-provided knowledge"
+  homepage "https://zero.sjeng.org/"
+  # pull from git tag to get submodules
+  url "https://github.com/leela-zero/leela-zero.git",
+      :tag      => "v0.17",
+      :revision => "3f297889563bcbec671982c655996ccff63fa253"
+
+  depends_on "cmake" => :build
+  depends_on "boost"
+
+  resource "network" do
+    url "https://zero.sjeng.org/networks/00ff08ebcdc92a2554aaae815fbf5d91e8d76b9edfe82c9999427806e30eae77.gz", :using => :nounzip
+    sha256 "5302f23818c23e1961dff986ba00f5df5c58dc9c780ed74173402d58fdb6349c"
+  end
+
+  def install
+    mkdir "build"
+    cd "build" do
+      system "cmake", ".."
+      system "cmake", "--build", "."
+      bin.install "leelaz"
+    end
+    pkgshare.install resource("network")
+  end
+
+  test do
+    system "#{bin}/leelaz", "--help"
+    assert_match /^= [A-T][0-9]+$/, pipe_output("#{bin}/leelaz --cpu-only --gtp -w #{pkgshare}/*.gz", "genmove b\n", 0)
+  end
+end