reftable: reserve standard PackExt

Reserve "ref" extension for reftable files.  This allows them to be
used in a DFS repository as a stream in a DfsPackDescription.

Change-Id: Ife781bb64d0bb063333183ad2be70a41a2482513

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackExt.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackExt.java
index 248692f93fcfba2983ffe15082635f77e9a7c0f3..e8bbf78a153a8b1b7c42d0a589a2ec8a33c7a0fe 100644 (file)
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackExt.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackExt.java
@@ -59,6 +59,9 @@ public class PackExt {
        /** A pack bitmap index file extension. */
        public static final PackExt BITMAP_INDEX = newPackExt("bitmap"); //$NON-NLS-1$
 
+       /** A reftable file. */
+       public static final PackExt REFTABLE = newPackExt("ref"); //$NON-NLS-1$
+
        /** @return all of the PackExt values. */
        public static PackExt[] values() {
                return VALUES;