120 lines
3.5 KiB
Go
120 lines
3.5 KiB
Go
package server
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// DONTCOVER
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/spf13/cobra"
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tmjson "github.com/tendermint/tendermint/libs/json"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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tmtypes "github.com/tendermint/tendermint/types"
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"github.com/cosmos/cosmos-sdk/client/flags"
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"github.com/cosmos/cosmos-sdk/server/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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const (
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FlagHeight = "height"
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FlagForZeroHeight = "for-zero-height"
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FlagJailAllowedAddrs = "jail-allowed-addrs"
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)
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// ExportCmd dumps app state to JSON.
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func ExportCmd(appExporter types.AppExporter, defaultNodeHome string) *cobra.Command {
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cmd := &cobra.Command{
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Use: "export",
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Short: "Export state to JSON",
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RunE: func(cmd *cobra.Command, args []string) error {
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serverCtx := GetServerContextFromCmd(cmd)
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config := serverCtx.Config
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homeDir, _ := cmd.Flags().GetString(flags.FlagHome)
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config.SetRoot(homeDir)
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if _, err := os.Stat(config.GenesisFile()); os.IsNotExist(err) {
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return err
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}
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db, err := openDB(config.RootDir)
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if err != nil {
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return err
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}
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if appExporter == nil {
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if _, err := fmt.Fprintln(os.Stderr, "WARNING: App exporter not defined. Returning genesis file."); err != nil {
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return err
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}
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genesis, err := ioutil.ReadFile(config.GenesisFile())
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if err != nil {
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return err
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}
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fmt.Println(string(genesis))
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return nil
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}
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traceWriterFile, _ := cmd.Flags().GetString(flagTraceStore)
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traceWriter, err := openTraceWriter(traceWriterFile)
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if err != nil {
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return err
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}
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height, _ := cmd.Flags().GetInt64(FlagHeight)
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forZeroHeight, _ := cmd.Flags().GetBool(FlagForZeroHeight)
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jailAllowedAddrs, _ := cmd.Flags().GetStringSlice(FlagJailAllowedAddrs)
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exported, err := appExporter(serverCtx.Logger, db, traceWriter, height, forZeroHeight, jailAllowedAddrs, serverCtx.Viper)
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if err != nil {
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return fmt.Errorf("error exporting state: %v", err)
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}
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doc, err := tmtypes.GenesisDocFromFile(serverCtx.Config.GenesisFile())
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if err != nil {
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return err
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}
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doc.AppState = exported.AppState
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doc.Validators = exported.Validators
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doc.InitialHeight = exported.Height
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doc.ConsensusParams = &tmproto.ConsensusParams{
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Block: tmproto.BlockParams{
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MaxBytes: exported.ConsensusParams.Block.MaxBytes,
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MaxGas: exported.ConsensusParams.Block.MaxGas,
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TimeIotaMs: doc.ConsensusParams.Block.TimeIotaMs,
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},
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Evidence: tmproto.EvidenceParams{
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MaxAgeNumBlocks: exported.ConsensusParams.Evidence.MaxAgeNumBlocks,
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MaxAgeDuration: exported.ConsensusParams.Evidence.MaxAgeDuration,
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MaxBytes: exported.ConsensusParams.Evidence.MaxBytes,
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},
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Validator: tmproto.ValidatorParams{
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PubKeyTypes: exported.ConsensusParams.Validator.PubKeyTypes,
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},
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}
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// NOTE: Tendermint uses a custom JSON decoder for GenesisDoc
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// (except for stuff inside AppState). Inside AppState, we're free
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// to encode as protobuf or amino.
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encoded, err := tmjson.Marshal(doc)
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if err != nil {
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return err
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}
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cmd.Println(string(sdk.MustSortJSON(encoded)))
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return nil
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},
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}
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cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
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cmd.Flags().Int64(FlagHeight, -1, "Export state from a particular height (-1 means latest height)")
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cmd.Flags().Bool(FlagForZeroHeight, false, "Export state to start at height zero (perform preproccessing)")
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cmd.Flags().StringSlice(FlagJailAllowedAddrs, []string{}, "Comma-separated list of operator addresses of jailed validators to unjail")
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return cmd
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}
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