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cmd.go
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cmd.go
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package migrate
import (
"fmt"
"time"
"github.com/spf13/cobra"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/server"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/version"
"github.com/kava-labs/kava/migrate/v0_8"
v032tendermint "github.com/kava-labs/kava/migrate/v0_8/tendermint/v0_32"
)
const (
flagGenesisTime = "genesis-time"
flagChainID = "chain-id"
)
// MigrateGenesisCmd returns a command to execute genesis state migration.
func MigrateGenesisCmd(_ *server.Context, cdc *codec.Codec) *cobra.Command {
cmd := &cobra.Command{
Use: "migrate [genesis-file]",
Short: "Migrate genesis from kava v0.3 to v0.8",
Long: "Migrate the source genesis into the current version, sorts it, and print to STDOUT.",
Example: fmt.Sprintf(`%s migrate /path/to/genesis.json --chain-id=new-chain-id --genesis-time=1998-01-01T00:00:00Z`, version.ServerName),
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
// 1) Unmarshal existing genesis.json
importGenesis := args[0]
genDoc, err := v032tendermint.GenesisDocFromFile(importGenesis)
if err != nil {
return fmt.Errorf("failed to read genesis document from file %s: %w", importGenesis, err)
}
// 2) Migrate state from kava v0.3 to v0.8
newGenDoc := v0_8.Migrate(*genDoc)
// 3) Create and output a new genesis file
genesisTime := cmd.Flag(flagGenesisTime).Value.String()
if genesisTime != "" {
var t time.Time
err := t.UnmarshalText([]byte(genesisTime))
if err != nil {
return fmt.Errorf("failed to unmarshal genesis time: %w", err)
}
newGenDoc.GenesisTime = t
}
chainID := cmd.Flag(flagChainID).Value.String()
if chainID != "" {
newGenDoc.ChainID = chainID
}
bz, err := cdc.MarshalJSONIndent(newGenDoc, "", " ")
if err != nil {
return fmt.Errorf("failed to marshal genesis doc: %w", err)
}
sortedBz, err := sdk.SortJSON(bz)
if err != nil {
return fmt.Errorf("failed to sort JSON genesis doc: %w", err)
}
fmt.Println(string(sortedBz))
return nil
},
}
cmd.Flags().String(flagGenesisTime, "", "override genesis_time with this flag")
cmd.Flags().String(flagChainID, "", "override chain_id with this flag")
return cmd
}