1 files changed, 174 insertions, 0 deletions
diff --git a/third_party/nix/src/libutil/proto.hh b/third_party/nix/src/libutil/proto.hh
new file mode 100644
index 0000000000..058cb7b7b4
--- /dev/null
+++ b/third_party/nix/src/libutil/proto.hh
@@ -0,0 +1,174 @@
+#pragma once
+
+#include <absl/status/status.h>
+#include <grpcpp/impl/codegen/status.h>
+#include <grpcpp/impl/codegen/status_code_enum.h>
+
+#include "libproto/worker.pb.h"
+#include "libutil/types.hh"
+
+namespace nix::util::proto {
+
+inline ::nix::proto::StorePath StorePath(const Path& path) {
+  ::nix::proto::StorePath store_path;
+  store_path.set_path(path);
+  return store_path;
+}
+
+inline ::nix::proto::StorePaths StorePaths(const PathSet& paths) {
+  ::nix::proto::StorePaths result;
+  for (const auto& path : paths) {
+    result.add_paths(path);
+  }
+  return result;
+}
+
+template <typename T, typename U>
+T FillFrom(const U& src) {
+  T result;
+  result.insert(src.begin(), src.end());
+  return result;
+}
+
+constexpr absl::StatusCode GRPCStatusCodeToAbsl(grpc::StatusCode code) {
+  switch (code) {
+    case grpc::StatusCode::OK:
+      return absl::StatusCode::kOk;
+    case grpc::StatusCode::CANCELLED:
+      return absl::StatusCode::kCancelled;
+    case grpc::StatusCode::UNKNOWN:
+      return absl::StatusCode::kUnknown;
+    case grpc::StatusCode::INVALID_ARGUMENT:
+      return absl::StatusCode::kInvalidArgument;
+    case grpc::StatusCode::DEADLINE_EXCEEDED:
+      return absl::StatusCode::kDeadlineExceeded;
+    case grpc::StatusCode::NOT_FOUND:
+      return absl::StatusCode::kNotFound;
+    case grpc::StatusCode::ALREADY_EXISTS:
+      return absl::StatusCode::kAlreadyExists;
+    case grpc::StatusCode::PERMISSION_DENIED:
+      return absl::StatusCode::kPermissionDenied;
+    case grpc::StatusCode::UNAUTHENTICATED:
+      return absl::StatusCode::kUnauthenticated;
+    case grpc::StatusCode::RESOURCE_EXHAUSTED:
+      return absl::StatusCode::kResourceExhausted;
+    case grpc::StatusCode::FAILED_PRECONDITION:
+      return absl::StatusCode::kFailedPrecondition;
+    case grpc::StatusCode::ABORTED:
+      return absl::StatusCode::kAborted;
+    case grpc::StatusCode::OUT_OF_RANGE:
+      return absl::StatusCode::kOutOfRange;
+    case grpc::StatusCode::UNIMPLEMENTED:
+      return absl::StatusCode::kUnimplemented;
+    case grpc::StatusCode::INTERNAL:
+      return absl::StatusCode::kInternal;
+    case grpc::StatusCode::UNAVAILABLE:
+      return absl::StatusCode::kUnavailable;
+    case grpc::StatusCode::DATA_LOSS:
+      return absl::StatusCode::kDataLoss;
+    default:
+      return absl::StatusCode::kInternal;
+  }
+}
+
+constexpr grpc::StatusCode AbslStatusCodeToGRPC(absl::StatusCode code) {
+  switch (code) {
+    case absl::StatusCode::kOk:
+      return grpc::StatusCode::OK;
+    case absl::StatusCode::kCancelled:
+      return grpc::StatusCode::CANCELLED;
+    case absl::StatusCode::kUnknown:
+      return grpc::StatusCode::UNKNOWN;
+    case absl::StatusCode::kInvalidArgument:
+      return grpc::StatusCode::INVALID_ARGUMENT;
+    case absl::StatusCode::kDeadlineExceeded:
+      return grpc::StatusCode::DEADLINE_EXCEEDED;
+    case absl::StatusCode::kNotFound:
+      return grpc::StatusCode::NOT_FOUND;
+    case absl::StatusCode::kAlreadyExists:
+      return grpc::StatusCode::ALREADY_EXISTS;
+    case absl::StatusCode::kPermissionDenied:
+      return grpc::StatusCode::PERMISSION_DENIED;
+    case absl::StatusCode::kUnauthenticated:
+      return grpc::StatusCode::UNAUTHENTICATED;
+    case absl::StatusCode::kResourceExhausted:
+      return grpc::StatusCode::RESOURCE_EXHAUSTED;
+    case absl::StatusCode::kFailedPrecondition:
+      return grpc::StatusCode::FAILED_PRECONDITION;
+    case absl::StatusCode::kAborted:
+      return grpc::StatusCode::ABORTED;
+    case absl::StatusCode::kOutOfRange:
+      return grpc::StatusCode::OUT_OF_RANGE;
+    case absl::StatusCode::kUnimplemented:
+      return grpc::StatusCode::UNIMPLEMENTED;
+    case absl::StatusCode::kInternal:
+      return grpc::StatusCode::INTERNAL;
+    case absl::StatusCode::kUnavailable:
+      return grpc::StatusCode::UNAVAILABLE;
+    case absl::StatusCode::kDataLoss:
+      return grpc::StatusCode::DATA_LOSS;
+    default:
+      return grpc::StatusCode::INTERNAL;
+  }
+}
+
+constexpr absl::string_view GRPCStatusCodeDescription(grpc::StatusCode code) {
+  switch (code) {
+    case grpc::StatusCode::OK:
+      return "OK";
+    case grpc::StatusCode::CANCELLED:
+      return "CANCELLED";
+    case grpc::StatusCode::UNKNOWN:
+      return "UNKNOWN";
+    case grpc::StatusCode::INVALID_ARGUMENT:
+      return "INVALID_ARGUMENT";
+    case grpc::StatusCode::DEADLINE_EXCEEDED:
+      return "DEADLINE_EXCEEDED";
+    case grpc::StatusCode::NOT_FOUND:
+      return "NOT_FOUND";
+    case grpc::StatusCode::ALREADY_EXISTS:
+      return "ALREADY_EXISTS";
+    case grpc::StatusCode::PERMISSION_DENIED:
+      return "PERMISSION_DENIED";
+    case grpc::StatusCode::UNAUTHENTICATED:
+      return "UNAUTHENTICATED";
+    case grpc::StatusCode::RESOURCE_EXHAUSTED:
+      return "RESOURCE_EXHAUSTED";
+    case grpc::StatusCode::FAILED_PRECONDITION:
+      return "FAILED_PRECONDITION";
+    case grpc::StatusCode::ABORTED:
+      return "ABORTED";
+    case grpc::StatusCode::OUT_OF_RANGE:
+      return "OUT_OF_RANGE";
+    case grpc::StatusCode::UNIMPLEMENTED:
+      return "UNIMPLEMENTED";
+    case grpc::StatusCode::INTERNAL:
+      return "INTERNAL";
+    case grpc::StatusCode::UNAVAILABLE:
+      return "UNAVAILABLE";
+    case grpc::StatusCode::DATA_LOSS:
+      return "DATA_LOSS";
+    default:
+      return "<BAD ERROR CODE>";
+  };
+}
+
+inline absl::Status GRPCStatusToAbsl(grpc::Status status) {
+  if (status.ok()) {
+    return absl::OkStatus();
+  }
+
+  return absl::Status(GRPCStatusCodeToAbsl(status.error_code()),
+                      status.error_message());
+}
+
+inline grpc::Status AbslToGRPCStatus(absl::Status status) {
+  if (status.ok()) {
+    return grpc::Status::OK;
+  }
+
+  return grpc::Status(AbslStatusCodeToGRPC(status.code()),
+                      std::string(status.message()));
+}
+
+}  // namespace nix::util::proto