/
server.go
192 lines (160 loc) · 5.28 KB
/
server.go
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package server
import (
"fmt"
"io"
"os"
"path/filepath"
"github.com/cosmos/cosmos-sdk/client/flags"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/spf13/cobra"
tmjson "github.com/tendermint/tendermint/libs/json"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
tmtypes "github.com/tendermint/tendermint/types"
dbm "github.com/tendermint/tm-db"
tmcmd "github.com/tendermint/tendermint/cmd/cometbft/commands"
sdkserver "github.com/cosmos/cosmos-sdk/server"
"github.com/cosmos/cosmos-sdk/server/types"
"github.com/cosmos/cosmos-sdk/version"
)
const (
// Tendermint full-node start flags
flagTraceStore = "trace-store"
flagToFile = "to-file"
)
// Commands server commands
func Commands(defaultNodeHome string, appCreator types.AppCreator, appExport types.AppExporter, addStartFlags types.ModuleInitFlags) []*cobra.Command {
tendermintCmd := &cobra.Command{
Use: "tendermint",
Short: "Tendermint subcommands",
}
tendermintCmd.AddCommand(
sdkserver.ShowNodeIDCmd(),
sdkserver.ShowValidatorCmd(),
sdkserver.ShowAddressCmd(),
sdkserver.VersionCmd(),
tmcmd.ResetAllCmd,
tmcmd.ResetStateCmd,
)
startCmd := sdkserver.StartCmd(appCreator, defaultNodeHome)
addStartFlags(startCmd)
cmds := []*cobra.Command{
startCmd,
tendermintCmd,
ExportCmd(appExport, defaultNodeHome),
version.NewVersionCommand(),
sdkserver.NewRollbackCmd(appCreator, defaultNodeHome),
}
return cmds
}
// ExportCmd dumps app state to JSON.
func ExportCmd(appExporter types.AppExporter, defaultNodeHome string) *cobra.Command {
cmd := &cobra.Command{
Use: "export",
Short: "Export state to JSON",
RunE: func(cmd *cobra.Command, args []string) error {
serverCtx := sdkserver.GetServerContextFromCmd(cmd)
config := serverCtx.Config
homeDir, _ := cmd.Flags().GetString(flags.FlagHome)
config.SetRoot(homeDir)
if _, err := os.Stat(config.GenesisFile()); os.IsNotExist(err) {
return err
}
db, err := openDB(config.RootDir)
if err != nil {
return err
}
outFile := os.Stdout
if toFile, _ := cmd.Flags().GetString(flagToFile); toFile != "" {
outFile, err = os.Create(toFile)
if err != nil {
return err
}
}
defer func() {
if outFile != os.Stdout {
_ = outFile.Close()
}
}()
if appExporter == nil {
if _, err := fmt.Fprintln(os.Stderr, "WARNING: App exporter not defined. Returning genesis file."); err != nil {
return err
}
genesis, err := os.ReadFile(config.GenesisFile())
if err != nil {
return err
}
_, err = fmt.Fprintln(outFile, string(genesis))
if err != nil {
return err
}
return nil
}
traceWriterFile, _ := cmd.Flags().GetString(flagTraceStore)
traceWriter, err := openTraceWriter(traceWriterFile)
if err != nil {
return err
}
height, _ := cmd.Flags().GetInt64(sdkserver.FlagHeight)
forZeroHeight, _ := cmd.Flags().GetBool(sdkserver.FlagForZeroHeight)
jailAllowedAddrs, _ := cmd.Flags().GetStringSlice(sdkserver.FlagJailAllowedAddrs)
exported, err := appExporter(serverCtx.Logger, db, traceWriter, height, forZeroHeight, jailAllowedAddrs, serverCtx.Viper)
if err != nil {
return fmt.Errorf("error exporting state: %v", err)
}
doc, err := tmtypes.GenesisDocFromFile(serverCtx.Config.GenesisFile())
if err != nil {
return err
}
doc.AppState = exported.AppState
doc.Validators = exported.Validators
doc.InitialHeight = exported.Height
doc.ConsensusParams = &tmproto.ConsensusParams{
Block: tmproto.BlockParams{
MaxBytes: exported.ConsensusParams.Block.MaxBytes,
MaxGas: exported.ConsensusParams.Block.MaxGas,
TimeIotaMs: doc.ConsensusParams.Block.TimeIotaMs,
},
Evidence: tmproto.EvidenceParams{
MaxAgeNumBlocks: exported.ConsensusParams.Evidence.MaxAgeNumBlocks,
MaxAgeDuration: exported.ConsensusParams.Evidence.MaxAgeDuration,
MaxBytes: exported.ConsensusParams.Evidence.MaxBytes,
},
Validator: tmproto.ValidatorParams{
PubKeyTypes: exported.ConsensusParams.Validator.PubKeyTypes,
},
}
// NOTE: Tendermint uses a custom JSON decoder for GenesisDoc
// (except for stuff inside AppState). Inside AppState, we're free
// to encode as protobuf or amino.
encoded, err := tmjson.Marshal(doc)
if err != nil {
return err
}
_, err = fmt.Fprintln(outFile, string(sdk.MustSortJSON(encoded)))
if err != nil {
return err
}
return nil
},
}
cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
cmd.Flags().Int64(sdkserver.FlagHeight, -1, "Export state from a particular height (-1 means latest height)")
cmd.Flags().Bool(sdkserver.FlagForZeroHeight, false, "Export state to start at height zero (perform preprocessing)")
cmd.Flags().StringSlice(sdkserver.FlagJailAllowedAddrs, []string{}, "Comma-separated list of operator addresses of jailed validators to unjail")
cmd.Flags().String(flagToFile, "", "Export Genesis to specified file")
return cmd
}
func openDB(rootDir string) (dbm.DB, error) {
dataDir := filepath.Join(rootDir, "data")
return sdk.NewLevelDB("application", dataDir)
}
func openTraceWriter(traceWriterFile string) (w io.Writer, err error) {
if traceWriterFile == "" {
return
}
return os.OpenFile(
traceWriterFile,
os.O_WRONLY|os.O_APPEND|os.O_CREATE,
0o666,
)
}