Add Target root to forkchoice dump (#15009)

* Add Target root to forkchoice dump

* review

api/server/structs/endpoints_debug.go

@@ -54,4 +54,5 @@ type ForkChoiceNodeExtraData struct {
 	Balance                  string `json:"balance"`
 	ExecutionOptimistic      bool   `json:"execution_optimistic"`
 	TimeStamp                string `json:"timestamp"`
+	Target                   string `json:"target"`
 }

beacon-chain/forkchoice/doubly-linked-tree/node.go

@@ -156,6 +156,10 @@ func (n *Node) nodeTreeDump(ctx context.Context, nodes []*forkchoice2.Node) ([]*
 	if n.parent != nil {
 		parentRoot = n.parent.root
 	}
+	target := [32]byte{}
+	if n.target != nil {
+		target = n.target.root
+	}
 	thisNode := &forkchoice2.Node{
 		Slot:                     n.slot,
 		BlockRoot:                n.root[:],
@@ -169,6 +173,7 @@ func (n *Node) nodeTreeDump(ctx context.Context, nodes []*forkchoice2.Node) ([]*
 		ExecutionOptimistic:      n.optimistic,
 		ExecutionBlockHash:       n.payloadHash[:],
 		Timestamp:                n.timestamp,
+		Target:                   target[:],
 	}
 	if n.optimistic {
 		thisNode.Validity = forkchoice2.Optimistic

beacon-chain/rpc/eth/debug/handlers.go

@@ -190,6 +190,7 @@ func (s *Server) GetForkChoice(w http.ResponseWriter, r *http.Request) {
 				Balance:                  fmt.Sprintf("%d", n.Balance),
 				ExecutionOptimistic:      n.ExecutionOptimistic,
 				TimeStamp:                fmt.Sprintf("%d", n.Timestamp),
+				Target:                   fmt.Sprintf("%#x", n.Target),
 			},
 		}
 	}

changelog/potuz_add_target_to_fc_dump.md

@@ -0,0 +1,3 @@
+### Ignored
+
+- Add target root to forkchoice dump

consensus-types/forkchoice/types.go

@@ -51,4 +51,5 @@ type Node struct {
 	BlockRoot                []byte
 	ParentRoot               []byte
 	ExecutionBlockHash       []byte
+	Target                   []byte
 }