Add jgvariant-ostree module.
Change-Id: Idf7bacad28d7cf65eb1ddd0994dcc2c2c2a7e18e
diff --git a/jgvariant-ostree/src/main/java/eu/mulk/jgvariant/ostree/DeltaFallback.java b/jgvariant-ostree/src/main/java/eu/mulk/jgvariant/ostree/DeltaFallback.java
new file mode 100644
index 0000000..1b3cc0a
--- /dev/null
+++ b/jgvariant-ostree/src/main/java/eu/mulk/jgvariant/ostree/DeltaFallback.java
@@ -0,0 +1,25 @@
+package eu.mulk.jgvariant.ostree;
+
+import eu.mulk.jgvariant.core.Decoder;
+import java.nio.ByteOrder;
+
+/**
+ * A fallback entry in a {@link DeltaSuperblock}.
+ *
+ * <p>Reference: {@code ostree-repo-static-delta-private.h#OSTREE_STATIC_DELTA_FALLBACK_FORMAT}
+ */
+public record DeltaFallback(
+ byte objectType, Checksum checksum, long compressedSize, long uncompressedSize) {
+
+ private static final Decoder<DeltaFallback> DECODER =
+ Decoder.ofStructure(
+ DeltaFallback.class,
+ Decoder.ofByte(),
+ Checksum.decoder(),
+ Decoder.ofLong().withByteOrder(ByteOrder.LITTLE_ENDIAN), // FIXME: non-canonical
+ Decoder.ofLong().withByteOrder(ByteOrder.LITTLE_ENDIAN)); // FIXME: non-canonical
+
+ public static Decoder<DeltaFallback> decoder() {
+ return DECODER;
+ }
+}