build(macos)!: add homebrew formula and drop dmg (#2222)

packaging/macos/sunshine.rb

@@ -0,0 +1,62 @@
+require "language/node"
+
+class @PROJECT_NAME@ < Formula
+  desc "@PROJECT_DESCRIPTION@"
+  homepage "@PROJECT_HOMEPAGE_URL@"
+  url "@GITHUB_CLONE_URL@",
+    tag: "@GITHUB_BRANCH@"
+  version "@PROJECT_VERSION@"
+  license all_of: ["GPL-3.0-only"]
+  head "@GITHUB_CLONE_URL@", branch: "nightly"
+
+  depends_on "boost" => :build
+  depends_on "cmake" => :build
+  depends_on "pkg-config" => :build
+  depends_on "curl"
+  depends_on "miniupnpc"
+  depends_on "node"
+  depends_on "openssl"
+  depends_on "opus"
+
+  def install
+    args = %W[
+      -DBUIld_WERROR=ON
+      -DCMAKE_INSTALL_PREFIX=#{prefix}
+      -DOPENSSL_ROOT_DIR=#{Formula["openssl"].opt_prefix}
+      -DSUNSHINE_ASSETS_DIR=sunshine/assets
+      -DSUNSHINE_BUILD_HOMEBREW=ON
+    ]
+    system "cmake", "-S", ".", "-B", "build", *std_cmake_args, *args
+
+    cd "build" do
+      system "make", "-j"
+      system "make", "install"
+    end
+  end
+
+  service do
+    run [opt_bin/"sunshine", "~/.config/sunshine/sunshine.conf"]
+  end
+
+  def caveats
+    <<~EOS
+      Thanks for installing @PROJECT_NAME@!
+
+      To get started, review the documentation at:
+        https://docs.lizardbyte.dev/projects/sunshine/en/latest/
+
+      Sunshine can only access microphones on macOS due to system limitations.
+      To stream system audio use "Soundflower" or "BlackHole".
+
+      Gamepads are not currently supported on macOS.
+    EOS
+  end
+
+  test do
+    # test that the binary runs at all
+    output = shell_output("#{bin}/sunshine --version").strip
+    puts output
+
+    # TODO: add unit tests
+  end
+end