1 files changed, 24 insertions, 0 deletions
diff --git a/nix/mozlz4.nix b/nix/mozlz4.nix
new file mode 100644
index 0000000..1fa0497
--- /dev/null
+++ b/nix/mozlz4.nix
@@ -0,0 +1,24 @@
+{ pkgs, lib }:
+
+let
+  inherit (pkgs.writers) writePython3;
+  inherit (pkgs.python3Packages) lz4;
+in rec {
+  compress = writePython3 "compress.py" { libraries = [ lz4 ]; } ''
+    import sys
+    import lz4.block
+
+    data = lz4.block.compress(sys.stdin.buffer.read())
+    data = b'mozLz40\0' + data
+
+    sys.stdout.buffer.write(data)
+  '';
+
+  decompress = writePython3 "decompress.py" { libraries = [ lz4 ]; } ''
+    import sys
+    import lz4.block
+
+    sys.stdin.buffer.read(8)
+    sys.stdout.buffer.write(lz4.block.decompress(sys.stdin.buffer.read()))
+  '';
+}