feat: backport the abci command (#2588)

should have just done this from the start, but I was getting too clever

this adds the query sequence abci method to the v0.38 branch, but
doesn't actually use it etc.

we need this to bump the sdk and the application to use query sequence.

Author: evan-forbes

abci/client/grpc_client.go

@@ -245,3 +245,7 @@ func (cli *grpcClient) VerifyVoteExtension(ctx context.Context, req *types.Reque
 func (cli *grpcClient) FinalizeBlock(ctx context.Context, req *types.RequestFinalizeBlock) (*types.ResponseFinalizeBlock, error) {
 	return cli.client.FinalizeBlock(ctx, types.ToRequestFinalizeBlock(req).GetFinalizeBlock(), grpc.WaitForReady(true))
 }
+
+func (cli *grpcClient) QuerySequence(ctx context.Context, req *types.RequestQuerySequence) (*types.ResponseQuerySequence, error) {
+	return cli.client.QuerySequence(ctx, types.ToRequestQuerySequence(req).GetQuerySequence(), grpc.WaitForReady(true))
+}

abci/client/mocks/client.go

@@ -412,6 +412,17 @@ func (cli *socketClient) FinalizeBlock(ctx context.Context, req *types.RequestFi
 	return reqRes.Response.GetFinalizeBlock(), cli.Error()
 }
 
+func (cli *socketClient) QuerySequence(ctx context.Context, req *types.RequestQuerySequence) (*types.ResponseQuerySequence, error) {
+	reqRes, err := cli.queueRequest(ctx, types.ToRequestQuerySequence(req))
+	if err != nil {
+		return nil, err
+	}
+	if err := cli.Flush(ctx); err != nil {
+		return nil, err
+	}
+	return reqRes.Response.GetQuerySequence(), cli.Error()
+}
+
 func (cli *socketClient) queueRequest(ctx context.Context, req *types.Request) (*ReqRes, error) {
 	reqres := NewReqRes(req)
 

abci/client/socket_client.go

@@ -12,7 +12,8 @@ type Application interface {
 	Query(context.Context, *RequestQuery) (*ResponseQuery, error) // Query for state
 
 	// Mempool Connection
-	CheckTx(context.Context, *RequestCheckTx) (*ResponseCheckTx, error) // Validate a tx for the mempool
+	CheckTx(context.Context, *RequestCheckTx) (*ResponseCheckTx, error)                   // Validate a tx for the mempool
+	QuerySequence(context.Context, *RequestQuerySequence) (*ResponseQuerySequence, error) // Query sequence for a signer
 
 	// Consensus Connection
 	InitChain(context.Context, *RequestInitChain) (*ResponseInitChain, error) // Initialize blockchain w validators/other info from CometBFT
@@ -117,3 +118,7 @@ func (BaseApplication) FinalizeBlock(_ context.Context, req *RequestFinalizeBloc
 		TxResults: txs,
 	}, nil
 }
+
+func (BaseApplication) QuerySequence(context.Context, *RequestQuerySequence) (*ResponseQuerySequence, error) {
+	return &ResponseQuerySequence{}, nil
+}

abci/types/application.go

@@ -124,6 +124,12 @@ func ToRequestFinalizeBlock(req *RequestFinalizeBlock) *Request {
 	}
 }
 
+func ToRequestQuerySequence(req *RequestQuerySequence) *Request {
+	return &Request{
+		Value: &Request_QuerySequence{req},
+	}
+}
+
 //----------------------------------------
 
 func ToResponseException(errStr string) *Response {
@@ -227,3 +233,9 @@ func ToResponseFinalizeBlock(res *ResponseFinalizeBlock) *Response {
 		Value: &Response_FinalizeBlock{res},
 	}
 }
+
+func ToResponseQuerySequence(res *ResponseQuerySequence) *Response {
+	return &Response{
+		Value: &Response_QuerySequence{res},
+	}
+}