protoc-gen-swift: init at 1.28.2

pkgs/by-name/pr/protoc-gen-swift/package.nix

@@ -0,0 +1,57 @@
+{
+  lib,
+  fetchFromGitHub,
+  swiftPackages,
+  swift,
+  swiftpm,
+  nix-update-script,
+}:
+let
+  stdenv = swiftPackages.stdenv;
+in
+stdenv.mkDerivation (finalAttrs: {
+  pname = "protoc-gen-swift";
+  version = "1.28.2";
+
+  src = fetchFromGitHub {
+    owner = "apple";
+    repo = "swift-protobuf";
+    rev = "${finalAttrs.version}";
+    hash = "sha256-YOEr73xDjNrc4TTkIBY8AdAUX2MBtF9ED1UF2IjTu44=";
+  };
+
+  nativeBuildInputs = [
+    swift
+    swiftpm
+  ];
+
+  # Not needed for darwin, as `apple-sdk` is implicit and part of the stdenv
+  buildInputs = lib.optionals stdenv.hostPlatform.isLinux [
+    swiftPackages.Foundation
+    swiftPackages.Dispatch
+  ];
+
+  # swiftpm fails to found libdispatch.so on Linux
+  LD_LIBRARY_PATH = lib.optionalString stdenv.hostPlatform.isLinux (
+    lib.makeLibraryPath [
+      swiftPackages.Dispatch
+    ]
+  );
+
+  installPhase = ''
+    runHook preInstall
+    install -Dm755 .build/release/protoc-gen-swift $out/bin/protoc-gen-swift
+    runHook postInstall
+  '';
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Protobuf plugin for generating Swift code";
+    homepage = "https://github.com/apple/swift-protobuf";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ matteopacini ];
+    mainProgram = "protoc-gen-swift";
+    inherit (swift.meta) platforms badPlatforms;
+  };
+})