frostfs-node/cmd/neofs-adm/internal/modules/morph/dump.go
Evgenii Stratonikov 4d65e138f5 [#726] neofs-adm: allow to dump deployed contract hashes
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-07-29 10:50:32 +03:00

59 lines
1.4 KiB
Go

package morph
import (
"bytes"
"errors"
"fmt"
"text/tabwriter"
nns "github.com/nspcc-dev/neo-go/examples/nft-nd-nns"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
func dumpContractHashes(cmd *cobra.Command, _ []string) error {
c, err := getN3Client(viper.GetViper())
if err != nil {
return fmt.Errorf("can't create N3 client: %w", err)
}
cs, err := c.GetContractStateByID(1)
if err != nil {
return err
}
bw := io.NewBufBinWriter()
for _, ctrName := range contractList {
emit.AppCall(bw.BinWriter, cs.Hash, "resolve", callflag.ReadOnly,
ctrName+".neofs", int64(nns.TXT))
}
res, err := c.InvokeScript(bw.Bytes(), nil)
if err != nil {
return fmt.Errorf("can't fetch info from NNS: %w", err)
}
if len(res.Stack) != len(contractList) {
return errors.New("invalid response from NNS contract: length mismatch")
}
buf := bytes.NewBuffer(nil)
tw := tabwriter.NewWriter(buf, 0, 2, 2, ' ', 0)
for i := range contractList {
ctrHash := "hash is invalid"
bs, err := res.Stack[i].TryBytes()
if err == nil {
ctrHash = string(bs) // hashes are stored as hex-encoded LE string
}
_, _ = tw.Write([]byte(fmt.Sprintf("%s:\t%s\n", contractList[i], ctrHash)))
}
_ = tw.Flush()
cmd.Print(buf.String())
return nil
}