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-rw-r--r--third_party/nix/src/libutil/hash.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/third_party/nix/src/libutil/hash.hh b/third_party/nix/src/libutil/hash.hh
index 4ad4ef6ada02..56845e715491 100644
--- a/third_party/nix/src/libutil/hash.hh
+++ b/third_party/nix/src/libutil/hash.hh
@@ -2,6 +2,7 @@
 
 #include <absl/status/statusor.h>
 
+#include "libproto/worker.grpc.pb.h"
 #include "libutil/serialise.hh"
 #include "libutil/types.hh"
 
@@ -9,8 +10,12 @@ namespace nix {
 
 MakeError(BadHash, Error);
 
+// TODO(grfn): Replace this with the hash type enum from the daemon proto so we
+// don't have to juggle two different types
 enum HashType : char { htUnknown, htMD5, htSHA1, htSHA256, htSHA512 };
 
+std::optional<HashType> hash_type_from(nix::proto::HashType hash_type);
+
 const int md5HashSize = 16;
 const int sha1HashSize = 20;
 const int sha256HashSize = 32;