lotus/cmd/lotus-shed/commp.go
2020-04-17 17:09:09 -07:00

28 lines
591 B
Go

package main
import (
"encoding/hex"
"fmt"
commcid "github.com/filecoin-project/go-fil-commcid"
"gopkg.in/urfave/cli.v2"
)
var commpToCidCmd = &cli.Command{
Name: "commp-to-cid",
Description: "Convert a raw commP to a piece-Cid",
Action: func(cctx *cli.Context) error {
if !cctx.Args().Present() {
return fmt.Errorf("must specify commP to convert")
}
dec, err := hex.DecodeString(cctx.Args().First())
if err != nil {
return fmt.Errorf("failed to decode input as hex string: %w", err)
}
fmt.Println(commcid.PieceCommitmentV1ToCID(dec))
return nil
},
}