package morph import ( "errors" "fmt" "github.com/nspcc-dev/neo-go/pkg/io" "github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neo-go/pkg/vm/emit" "github.com/nspcc-dev/neo-go/pkg/vm/vmstate" "github.com/spf13/cobra" "github.com/spf13/viper" ) func forceNewEpochCmd(cmd *cobra.Command, args []string) error { wCtx, err := newInitializeContext(cmd, viper.GetViper()) if err != nil { return fmt.Errorf("can't to initialize context: %w", err) } cs, err := wCtx.Client.GetContractStateByID(1) if err != nil { return fmt.Errorf("can't get NNS contract info: %w", err) } nmHash, err := nnsResolveHash(wCtx.Client, cs.Hash, netmapContract+".neofs") if err != nil { return fmt.Errorf("can't get netmap contract hash: %w", err) } bw := io.NewBufBinWriter() if err := emitNewEpochCall(bw, wCtx, nmHash); err != nil { return err } if err := wCtx.sendCommitteeTx(bw.Bytes(), true); err != nil { return err } return wCtx.awaitTx() } func emitNewEpochCall(bw *io.BufBinWriter, wCtx *initializeContext, nmHash util.Uint160) error { res, err := invokeFunction(wCtx.Client, nmHash, "epoch", nil, nil) if err != nil || res.State != vmstate.Halt.String() || len(res.Stack) == 0 { return errors.New("can't fetch current epoch from the netmap contract") } bi, err := res.Stack[0].TryInteger() if err != nil { return fmt.Errorf("can't parse current epoch: %w", err) } newEpoch := bi.Int64() + 1 wCtx.Command.Printf("Current epoch: %s, increase to %d.\n", bi, newEpoch) // In NeoFS this is done via Notary contract. Here, however, we can form the // transaction locally. emit.AppCall(bw.BinWriter, nmHash, "newEpoch", callflag.All, newEpoch) return bw.Err }