1 files changed, 24 insertions, 0 deletions
diff --git a/src/libutil/compression.hh b/src/libutil/compression.hh
new file mode 100644
index 000000000000..eacf559d65e9
--- /dev/null
+++ b/src/libutil/compression.hh
@@ -0,0 +1,24 @@
+#pragma once
+
+#include "ref.hh"
+#include "types.hh"
+#include "serialise.hh"
+
+#include <string>
+
+namespace nix {
+
+ref<std::string> compress(const std::string & method, const std::string & in);
+
+ref<std::string> decompress(const std::string & method, const std::string & in);
+
+struct CompressionSink : BufferedSink
+{
+    virtual void finish() = 0;
+};
+
+ref<CompressionSink> makeCompressionSink(const std::string & method, Sink & nextSink);
+
+MakeError(UnknownCompressionMethod, Error);
+
+}