DHT: Add sequence RefData

RefData now uses a sequence number as part of the field, ensuring
that updates always increase the sequence number by one whenever
a reference is modified.

Attaching a sequence number to RefData will help with storing
reference log entries during updates. As the sequence number should
be unique within the reference name space, log entries can be keyed
by the sequence number and remain unique.  Making this work over
reference delete-create cycles will require an additional RefTable
API to return the oldest sequence number previously used in the
reference log to seed the recreated reference.

Change-Id: I11cfff2a96ef962e57f29925a3eef41bdbf9f9bb
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

2 files changed, 169 insertions, 90 deletions

diff --git a/org.eclipse.jgit.generated.storage.dht.proto/resources/org/eclipse/jgit/storage/dht/git_store.proto b/org.eclipse.jgit.generated.storage.dht.proto/resources/org/eclipse/jgit/storage/dht/git_store.proto
index 78ad4f2bb9..ee9e7bddd2 100644
--- a/org.eclipse.jgit.generated.storage.dht.proto/resources/org/eclipse/jgit/storage/dht/git_store.proto
+++ b/org.eclipse.jgit.generated.storage.dht.proto/resources/org/eclipse/jgit/storage/dht/git_store.proto
@@ -56,6 +56,11 @@ option java_package = "org.eclipse.jgit.generated.storage.dht.proto";
     // Either symref *OR* target must be populated, but never both.
     //
 message RefData {
+    // Incrementing counter updated each time the RefData changes.
+    // Should always start at 1.
+    //
+  required uint32 sequence = 5 [default = 0];
+
     // An ObjectId with an optional hint about where it can be found.
     //
   message Id {
diff --git a/org.eclipse.jgit.generated.storage.dht.proto/src/org/eclipse/jgit/generated/storage/dht/proto/GitStore.java b/org.eclipse.jgit.generated.storage.dht.proto/src/org/eclipse/jgit/generated/storage/dht/proto/GitStore.java
index 86a2ffc0ed..ecb1a4c105 100644
--- a/org.eclipse.jgit.generated.storage.dht.proto/src/org/eclipse/jgit/generated/storage/dht/proto/GitStore.java
+++ b/org.eclipse.jgit.generated.storage.dht.proto/src/org/eclipse/jgit/generated/storage/dht/proto/GitStore.java
@@ -11,6 +11,10 @@ public final class GitStore {
   public interface RefDataOrBuilder
       extends com.google.protobuf.MessageOrBuilder {
 
+    // required uint32 sequence = 5 [default = 0];
+    boolean hasSequence();
+    int getSequence();
+
     // optional string symref = 1;
     boolean hasSymref();
     String getSymref();
@@ -575,11 +579,21 @@ public final class GitStore {
     }
 
     private int bitField0_;
+    // required uint32 sequence = 5 [default = 0];
+    public static final int SEQUENCE_FIELD_NUMBER = 5;
+    private int sequence_;
+    public boolean hasSequence() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public int getSequence() {
+      return sequence_;
+    }
+
     // optional string symref = 1;
     public static final int SYMREF_FIELD_NUMBER = 1;
     private Object symref_;
     public boolean hasSymref() {
-      return ((bitField0_ & 0x00000001) == 0x00000001);
+      return ((bitField0_ & 0x00000002) == 0x00000002);
     }
     public String getSymref() {
       Object ref = symref_;
@@ -611,7 +625,7 @@ public final class GitStore {
     public static final int TARGET_FIELD_NUMBER = 2;
     private org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id target_;
     public boolean hasTarget() {
-      return ((bitField0_ & 0x00000002) == 0x00000002);
+      return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id getTarget() {
       return target_;
@@ -624,7 +638,7 @@ public final class GitStore {
     public static final int IS_PEELED_FIELD_NUMBER = 3;
     private boolean isPeeled_;
     public boolean hasIsPeeled() {
-      return ((bitField0_ & 0x00000004) == 0x00000004);
+      return ((bitField0_ & 0x00000008) == 0x00000008);
     }
     public boolean getIsPeeled() {
       return isPeeled_;
@@ -634,7 +648,7 @@ public final class GitStore {
     public static final int PEELED_FIELD_NUMBER = 4;
     private org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id peeled_;
     public boolean hasPeeled() {
-      return ((bitField0_ & 0x00000008) == 0x00000008);
+      return ((bitField0_ & 0x00000010) == 0x00000010);
     }
     public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id getPeeled() {
       return peeled_;
@@ -644,6 +658,7 @@ public final class GitStore {
     }
 
     private void initFields() {
+      sequence_ = 0;
       symref_ = "";
       target_ = org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.getDefaultInstance();
       isPeeled_ = false;
@@ -654,6 +669,10 @@ public final class GitStore {
       byte isInitialized = memoizedIsInitialized;
       if (isInitialized != -1) return isInitialized == 1;
 
+      if (!hasSequence()) {
+        memoizedIsInitialized = 0;
+        return false;
+      }
       if (hasTarget()) {
         if (!getTarget().isInitialized()) {
           memoizedIsInitialized = 0;
@@ -673,18 +692,21 @@ public final class GitStore {
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
       getSerializedSize();
-      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
         output.writeBytes(1, getSymrefBytes());
       }
-      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
         output.writeMessage(2, target_);
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
         output.writeBool(3, isPeeled_);
       }
-      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
         output.writeMessage(4, peeled_);
       }
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeUInt32(5, sequence_);
+      }
       getUnknownFields().writeTo(output);
     }
 
@@ -694,22 +716,26 @@ public final class GitStore {
       if (size != -1) return size;
 
       size = 0;
-      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
         size += com.google.protobuf.CodedOutputStream
           .computeBytesSize(1, getSymrefBytes());
       }
-      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(2, target_);
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
         size += com.google.protobuf.CodedOutputStream
           .computeBoolSize(3, isPeeled_);
       }
-      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(4, peeled_);
       }
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(5, sequence_);
+      }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
       return size;
@@ -731,6 +757,11 @@ public final class GitStore {
       org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData other = (org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData) obj;
 
       boolean result = true;
+      result = result && (hasSequence() == other.hasSequence());
+      if (hasSequence()) {
+        result = result && (getSequence()
+            == other.getSequence());
+      }
       result = result && (hasSymref() == other.hasSymref());
       if (hasSymref()) {
         result = result && getSymref()
@@ -760,6 +791,10 @@ public final class GitStore {
     public int hashCode() {
       int hash = 41;
       hash = (19 * hash) + getDescriptorForType().hashCode();
+      if (hasSequence()) {
+        hash = (37 * hash) + SEQUENCE_FIELD_NUMBER;
+        hash = (53 * hash) + getSequence();
+      }
       if (hasSymref()) {
         hash = (37 * hash) + SYMREF_FIELD_NUMBER;
         hash = (53 * hash) + getSymref().hashCode();
@@ -894,22 +929,24 @@ public final class GitStore {
 
       public Builder clear() {
         super.clear();
-        symref_ = "";
+        sequence_ = 0;
         bitField0_ = (bitField0_ & ~0x00000001);
+        symref_ = "";
+        bitField0_ = (bitField0_ & ~0x00000002);
         if (targetBuilder_ == null) {
           target_ = org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.getDefaultInstance();
         } else {
           targetBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000002);
-        isPeeled_ = false;
         bitField0_ = (bitField0_ & ~0x00000004);
+        isPeeled_ = false;
+        bitField0_ = (bitField0_ & ~0x00000008);
         if (peeledBuilder_ == null) {
           peeled_ = org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.getDefaultInstance();
         } else {
           peeledBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000010);
         return this;
       }
 
@@ -951,22 +988,26 @@ public final class GitStore {
         if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
           to_bitField0_ |= 0x00000001;
         }
-        result.symref_ = symref_;
+        result.sequence_ = sequence_;
         if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
           to_bitField0_ |= 0x00000002;
         }
+        result.symref_ = symref_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
         if (targetBuilder_ == null) {
           result.target_ = target_;
         } else {
           result.target_ = targetBuilder_.build();
         }
-        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
-          to_bitField0_ |= 0x00000004;
-        }
-        result.isPeeled_ = isPeeled_;
         if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
           to_bitField0_ |= 0x00000008;
         }
+        result.isPeeled_ = isPeeled_;
+        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
+          to_bitField0_ |= 0x00000010;
+        }
         if (peeledBuilder_ == null) {
           result.peeled_ = peeled_;
         } else {
@@ -988,6 +1029,9 @@ public final class GitStore {
 
       public Builder mergeFrom(org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData other) {
         if (other == org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.getDefaultInstance()) return this;
+        if (other.hasSequence()) {
+          setSequence(other.getSequence());
+        }
         if (other.hasSymref()) {
           setSymref(other.getSymref());
         }
@@ -1005,6 +1049,10 @@ public final class GitStore {
       }
 
       public final boolean isInitialized() {
+        if (!hasSequence()) {
+
+          return false;
+        }
         if (hasTarget()) {
           if (!getTarget().isInitialized()) {
 
@@ -1044,7 +1092,7 @@ public final class GitStore {
               break;
             }
             case 10: {
-              bitField0_ |= 0x00000001;
+              bitField0_ |= 0x00000002;
               symref_ = input.readBytes();
               break;
             }
@@ -1058,7 +1106,7 @@ public final class GitStore {
               break;
             }
             case 24: {
-              bitField0_ |= 0x00000004;
+              bitField0_ |= 0x00000008;
               isPeeled_ = input.readBool();
               break;
             }
@@ -1071,16 +1119,42 @@ public final class GitStore {
               setPeeled(subBuilder.buildPartial());
               break;
             }
+            case 40: {
+              bitField0_ |= 0x00000001;
+              sequence_ = input.readUInt32();
+              break;
+            }
           }
         }
       }
 
       private int bitField0_;
 
+      // required uint32 sequence = 5 [default = 0];
+      private int sequence_ ;
+      public boolean hasSequence() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      public int getSequence() {
+        return sequence_;
+      }
+      public Builder setSequence(int value) {
+        bitField0_ |= 0x00000001;
+        sequence_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearSequence() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        sequence_ = 0;
+        onChanged();
+        return this;
+      }
+
       // optional string symref = 1;
       private Object symref_ = "";
       public boolean hasSymref() {
-        return ((bitField0_ & 0x00000001) == 0x00000001);
+        return ((bitField0_ & 0x00000002) == 0x00000002);
       }
       public String getSymref() {
         Object ref = symref_;
@@ -1096,19 +1170,19 @@ public final class GitStore {
         if (value == null) {
     throw new NullPointerException();
   }
-  bitField0_ |= 0x00000001;
+  bitField0_ |= 0x00000002;
         symref_ = value;
         onChanged();
         return this;
       }
       public Builder clearSymref() {
-        bitField0_ = (bitField0_ & ~0x00000001);
+        bitField0_ = (bitField0_ & ~0x00000002);
         symref_ = getDefaultInstance().getSymref();
         onChanged();
         return this;
       }
       void setSymref(com.google.protobuf.ByteString value) {
-        bitField0_ |= 0x00000001;
+        bitField0_ |= 0x00000002;
         symref_ = value;
         onChanged();
       }
@@ -1118,7 +1192,7 @@ public final class GitStore {
       private com.google.protobuf.SingleFieldBuilder<
           org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id, org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.Builder, org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.IdOrBuilder> targetBuilder_;
       public boolean hasTarget() {
-        return ((bitField0_ & 0x00000002) == 0x00000002);
+        return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id getTarget() {
         if (targetBuilder_ == null) {
@@ -1137,7 +1211,7 @@ public final class GitStore {
         } else {
           targetBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000004;
         return this;
       }
       public Builder setTarget(
@@ -1148,12 +1222,12 @@ public final class GitStore {
         } else {
           targetBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000004;
         return this;
       }
       public Builder mergeTarget(org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id value) {
         if (targetBuilder_ == null) {
-          if (((bitField0_ & 0x00000002) == 0x00000002) &&
+          if (((bitField0_ & 0x00000004) == 0x00000004) &&
               target_ != org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.getDefaultInstance()) {
             target_ =
               org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.newBuilder(target_).mergeFrom(value).buildPartial();
@@ -1164,7 +1238,7 @@ public final class GitStore {
         } else {
           targetBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000004;
         return this;
       }
       public Builder clearTarget() {
@@ -1174,11 +1248,11 @@ public final class GitStore {
         } else {
           targetBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000004);
         return this;
       }
       public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.Builder getTargetBuilder() {
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000004;
         onChanged();
         return getTargetFieldBuilder().getBuilder();
       }
@@ -1206,19 +1280,19 @@ public final class GitStore {
       // optional bool is_peeled = 3;
       private boolean isPeeled_ ;
       public boolean hasIsPeeled() {
-        return ((bitField0_ & 0x00000004) == 0x00000004);
+        return ((bitField0_ & 0x00000008) == 0x00000008);
       }
       public boolean getIsPeeled() {
         return isPeeled_;
       }
       public Builder setIsPeeled(boolean value) {
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000008;
         isPeeled_ = value;
         onChanged();
         return this;
       }
       public Builder clearIsPeeled() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000008);
         isPeeled_ = false;
         onChanged();
         return this;
@@ -1229,7 +1303,7 @@ public final class GitStore {
       private com.google.protobuf.SingleFieldBuilder<
           org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id, org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.Builder, org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.IdOrBuilder> peeledBuilder_;
       public boolean hasPeeled() {
-        return ((bitField0_ & 0x00000008) == 0x00000008);
+        return ((bitField0_ & 0x00000010) == 0x00000010);
       }
       public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id getPeeled() {
         if (peeledBuilder_ == null) {
@@ -1248,7 +1322,7 @@ public final class GitStore {
         } else {
           peeledBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000010;
         return this;
       }
       public Builder setPeeled(
@@ -1259,12 +1333,12 @@ public final class GitStore {
         } else {
           peeledBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000010;
         return this;
       }
       public Builder mergePeeled(org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id value) {
         if (peeledBuilder_ == null) {
-          if (((bitField0_ & 0x00000008) == 0x00000008) &&
+          if (((bitField0_ & 0x00000010) == 0x00000010) &&
               peeled_ != org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.getDefaultInstance()) {
             peeled_ =
               org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.newBuilder(peeled_).mergeFrom(value).buildPartial();
@@ -1275,7 +1349,7 @@ public final class GitStore {
         } else {
           peeledBuilder_.mergeFrom(value);
         }
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000010;
         return this;
       }
       public Builder clearPeeled() {
@@ -1285,11 +1359,11 @@ public final class GitStore {
         } else {
           peeledBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000010);
         return this;
       }
       public org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Id.Builder getPeeledBuilder() {
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000010;
         onChanged();
         return getPeeledFieldBuilder().getBuilder();
       }
@@ -7811,51 +7885,51 @@ public final class GitStore {
   static {
     java.lang.String[] descriptorData = {
       "\n,org/eclipse/jgit/storage/dht/git_store" +
-      ".proto\022\034org.eclipse.jgit.storage.dht\"\316\001\n" +
-      "\007RefData\022\016\n\006symref\030\001 \001(\t\0228\n\006target\030\002 \001(\013" +
-      "2(.org.eclipse.jgit.storage.dht.RefData." +
-      "Id\022\021\n\tis_peeled\030\003 \001(\010\0228\n\006peeled\030\004 \001(\0132(." +
-      "org.eclipse.jgit.storage.dht.RefData.Id\032" +
-      ",\n\002Id\022\023\n\013object_name\030\001 \002(\t\022\021\n\tchunk_key\030" +
-      "\002 \001(\t\"\364\001\n\nObjectInfo\022H\n\013object_type\030\001 \001(" +
-      "\01623.org.eclipse.jgit.storage.dht.ObjectI" +
-      "nfo.ObjectType\022\016\n\006offset\030\002 \002(\005\022\023\n\013packed",
-      "_size\030\003 \002(\003\022\025\n\rinflated_size\030\004 \002(\003\022\022\n\nde" +
-      "lta_base\030\005 \001(\014\022\025\n\ris_fragmented\030\006 \001(\010\"5\n" +
-      "\nObjectType\022\n\n\006COMMIT\020\001\022\010\n\004TREE\020\002\022\010\n\004BLO" +
-      "B\020\003\022\007\n\003TAG\020\004\"\217\004\n\tChunkInfo\022>\n\006source\030\001 \001" +
-      "(\0162..org.eclipse.jgit.storage.dht.ChunkI" +
-      "nfo.Source\022G\n\013object_type\030\002 \001(\01622.org.ec" +
-      "lipse.jgit.storage.dht.ChunkInfo.ObjectT" +
-      "ype\022\023\n\013is_fragment\030\003 \001(\010\022\027\n\017cached_pack_" +
-      "key\030\004 \001(\t\022K\n\robject_counts\030\005 \001(\01324.org.e" +
-      "clipse.jgit.storage.dht.ChunkInfo.Object",
-      "Counts\022\022\n\nchunk_size\030\006 \001(\005\022\022\n\nindex_size" +
-      "\030\007 \001(\005\022\021\n\tmeta_size\030\010 \001(\005\032R\n\014ObjectCount" +
-      "s\022\r\n\005total\030\001 \001(\005\022\r\n\005whole\030\002 \001(\005\022\021\n\tofs_d" +
-      "elta\030\003 \001(\005\022\021\n\tref_delta\030\004 \001(\005\"-\n\006Source\022" +
-      "\013\n\007RECEIVE\020\001\022\n\n\006INSERT\020\002\022\n\n\006REPACK\020\003\"@\n\n" +
-      "ObjectType\022\t\n\005MIXED\020\000\022\n\n\006COMMIT\020\001\022\010\n\004TRE" +
-      "E\020\002\022\010\n\004BLOB\020\003\022\007\n\003TAG\020\004\"\352\002\n\tChunkMeta\022E\n\n" +
-      "base_chunk\030\001 \003(\01321.org.eclipse.jgit.stor" +
-      "age.dht.ChunkMeta.BaseChunk\022\020\n\010fragment\030" +
-      "\002 \003(\t\022M\n\017commit_prefetch\0303 \001(\01324.org.ecl",
-      "ipse.jgit.storage.dht.ChunkMeta.Prefetch" +
-      "Hint\022K\n\rtree_prefetch\0304 \001(\01324.org.eclips" +
-      "e.jgit.storage.dht.ChunkMeta.PrefetchHin" +
-      "t\0326\n\tBaseChunk\022\026\n\016relative_start\030\001 \002(\003\022\021" +
-      "\n\tchunk_key\030\002 \002(\t\0320\n\014PrefetchHint\022\014\n\004edg" +
-      "e\030\001 \003(\t\022\022\n\nsequential\030\002 \003(\t\"\322\002\n\016CachedPa" +
-      "ckInfo\022\014\n\004name\030\001 \002(\t\022\017\n\007version\030\002 \002(\t\022\025\n" +
-      "\robjects_total\030\003 \002(\003\022\025\n\robjects_delta\030\004 " +
-      "\001(\003\022\023\n\013bytes_total\030\005 \001(\003\022L\n\010tip_list\030\006 \002" +
-      "(\0132:.org.eclipse.jgit.storage.dht.Cached",
-      "PackInfo.TipObjectList\022J\n\nchunk_list\030\007 \002" +
-      "(\01326.org.eclipse.jgit.storage.dht.Cached" +
-      "PackInfo.ChunkList\032$\n\rTipObjectList\022\023\n\013o" +
-      "bject_name\030\001 \003(\t\032\036\n\tChunkList\022\021\n\tchunk_k" +
-      "ey\030\001 \003(\tB1\n,org.eclipse.jgit.generated.s" +
-      "torage.dht.proto\240\001\001"
+      ".proto\022\034org.eclipse.jgit.storage.dht\"\343\001\n" +
+      "\007RefData\022\023\n\010sequence\030\005 \002(\r:\0010\022\016\n\006symref\030" +
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+      "e\030\001 \002(\t\022\021\n\tchunk_key\030\002 \001(\t\"\364\001\n\nObjectInf" +
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+      "ated_size\030\004 \002(\003\022\022\n\ndelta_base\030\005 \001(\014\022\025\n\ri" +
+      "s_fragmented\030\006 \001(\010\"5\n\nObjectType\022\n\n\006COMM" +
+      "IT\020\001\022\010\n\004TREE\020\002\022\010\n\004BLOB\020\003\022\007\n\003TAG\020\004\"\217\004\n\tCh" +
+      "unkInfo\022>\n\006source\030\001 \001(\0162..org.eclipse.jg" +
+      "it.storage.dht.ChunkInfo.Source\022G\n\013objec" +
+      "t_type\030\002 \001(\01622.org.eclipse.jgit.storage." +
+      "dht.ChunkInfo.ObjectType\022\023\n\013is_fragment\030" +
+      "\003 \001(\010\022\027\n\017cached_pack_key\030\004 \001(\t\022K\n\robject" +
+      "_counts\030\005 \001(\01324.org.eclipse.jgit.storage",
+      ".dht.ChunkInfo.ObjectCounts\022\022\n\nchunk_siz" +
+      "e\030\006 \001(\005\022\022\n\nindex_size\030\007 \001(\005\022\021\n\tmeta_size" +
+      "\030\010 \001(\005\032R\n\014ObjectCounts\022\r\n\005total\030\001 \001(\005\022\r\n" +
+      "\005whole\030\002 \001(\005\022\021\n\tofs_delta\030\003 \001(\005\022\021\n\tref_d" +
+      "elta\030\004 \001(\005\"-\n\006Source\022\013\n\007RECEIVE\020\001\022\n\n\006INS" +
+      "ERT\020\002\022\n\n\006REPACK\020\003\"@\n\nObjectType\022\t\n\005MIXED" +
+      "\020\000\022\n\n\006COMMIT\020\001\022\010\n\004TREE\020\002\022\010\n\004BLOB\020\003\022\007\n\003TA" +
+      "G\020\004\"\352\002\n\tChunkMeta\022E\n\nbase_chunk\030\001 \003(\01321." +
+      "org.eclipse.jgit.storage.dht.ChunkMeta.B" +
+      "aseChunk\022\020\n\010fragment\030\002 \003(\t\022M\n\017commit_pre",
+      "fetch\0303 \001(\01324.org.eclipse.jgit.storage.d" +
+      "ht.ChunkMeta.PrefetchHint\022K\n\rtree_prefet" +
+      "ch\0304 \001(\01324.org.eclipse.jgit.storage.dht." +
+      "ChunkMeta.PrefetchHint\0326\n\tBaseChunk\022\026\n\016r" +
+      "elative_start\030\001 \002(\003\022\021\n\tchunk_key\030\002 \002(\t\0320" +
+      "\n\014PrefetchHint\022\014\n\004edge\030\001 \003(\t\022\022\n\nsequenti" +
+      "al\030\002 \003(\t\"\322\002\n\016CachedPackInfo\022\014\n\004name\030\001 \002(" +
+      "\t\022\017\n\007version\030\002 \002(\t\022\025\n\robjects_total\030\003 \002(" +
+      "\003\022\025\n\robjects_delta\030\004 \001(\003\022\023\n\013bytes_total\030" +
+      "\005 \001(\003\022L\n\010tip_list\030\006 \002(\0132:.org.eclipse.jg",
+      "it.storage.dht.CachedPackInfo.TipObjectL" +
+      "ist\022J\n\nchunk_list\030\007 \002(\01326.org.eclipse.jg" +
+      "it.storage.dht.CachedPackInfo.ChunkList\032" +
+      "$\n\rTipObjectList\022\023\n\013object_name\030\001 \003(\t\032\036\n" +
+      "\tChunkList\022\021\n\tchunk_key\030\001 \003(\tB1\n,org.ecl" +
+      "ipse.jgit.generated.storage.dht.proto\240\001\001"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
       new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -7867,7 +7941,7 @@ public final class GitStore {
           internal_static_org_eclipse_jgit_storage_dht_RefData_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_org_eclipse_jgit_storage_dht_RefData_descriptor,
-              new java.lang.String[] { "Symref", "Target", "IsPeeled", "Peeled", },
+              new java.lang.String[] { "Sequence", "Symref", "Target", "IsPeeled", "Peeled", },
               org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.class,
               org.eclipse.jgit.generated.storage.dht.proto.GitStore.RefData.Builder.class);
           internal_static_org_eclipse_jgit_storage_dht_RefData_Id_descriptor =