feat: initial empty command

Author: Jonathansumner

app/prefix.go

@@ -5,7 +5,7 @@ import (
 )
 
 const (
-	AccountAddressPrefix = "fetch"
+	AccountAddressPrefix = "asi"
 )
 
 var (

cmd/fetchd/cmd/genasiupgrade.go

@@ -0,0 +1,281 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/btcsuite/btcutil/bech32"
+	"github.com/cosmos/cosmos-sdk/codec"
+	cosmostypes "github.com/cosmos/cosmos-sdk/types"
+	"github.com/spf13/cobra"
+	"github.com/tendermint/tendermint/types"
+	"regexp"
+	"strings"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/cosmos/cosmos-sdk/client/flags"
+	"github.com/cosmos/cosmos-sdk/server"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
+	"github.com/cosmos/cosmos-sdk/x/genutil"
+	genutiltypes "github.com/cosmos/cosmos-sdk/x/genutil/types"
+)
+
+const (
+	flagNewDescription = "new-description"
+	Bech32Chars        = "023456789acdefghjklmnpqrstuvwxyz"
+	AddrDataLength     = 32
+	WasmDataLength     = 52
+	AddrChecksumLength = 6
+	AccAddressPrefix   = ""
+	ValAddressPrefix   = "valoper"
+	ConsAddressPrefix  = "valcons"
+
+	NewBaseDenom   = "asi"
+	NewDenom       = "aasi"
+	NewAddrPrefix  = "asi"
+	NewChainId     = "asi-1"
+	NewDescription = "ASI Token"
+
+	OldBaseDenom  = "fet"
+	OldDenom      = "afet"
+	OldAddrPrefix = "fetch"
+)
+
+//" fetch char* [bech32 chars] limited by size " CHECKSUM?
+//verify functions after!
+
+// ASIGenesisUpgradeCmd returns replace-genesis-values cobra Command.
+func ASIGenesisUpgradeCmd(defaultNodeHome string) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "asi-genesis-upgrade",
+		Short: "This command carries out a full upgrade of the genesis file to the new ASI chain parameters.",
+		Long: `The following command will upgrade the current genesis file to the new ASI chain parameters. The following changes will be made:
+              - Chain ID will be updated to "asi-1"
+              - The native coin denom will be updated to "asi"
+              - The address prefix will be updated to "asi"
+              - The old fetch addresses will be updated to the new asi addresses`,
+
+		Args: cobra.ExactArgs(0),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			clientCtx := client.GetClientContextFromCmd(cmd)
+			cdc := clientCtx.Codec
+
+			serverCtx := server.GetServerContextFromCmd(cmd)
+			config := serverCtx.Config
+
+			config.SetRoot(clientCtx.HomeDir)
+
+			genFile := config.GenesisFile()
+
+			appState, genDoc, err := genutiltypes.GenesisStateFromGenFile(genFile)
+			if err != nil {
+				return fmt.Errorf("failed to unmarshal genesis state: %w", err)
+			}
+
+			// replace chain-id
+			ASIGenesisUpgradeReplaceChainID(genDoc)
+
+			// set denom metadata in bank module
+			err = ASIGenesisUpgradeReplaceDenomMetadata(cdc, &appState)
+			if err != nil {
+				return fmt.Errorf("failed to replace denom metadata: %w", err)
+			}
+
+			appStateJSON, err := json.Marshal(appState)
+			if err != nil {
+				return fmt.Errorf("failed to marshal application genesis state: %w", err)
+			}
+
+			appStateStr := string(appStateJSON)
+
+			// replace denom across the genesis file
+			ASIGenesisUpgradeReplaceDenom(&appStateStr)
+
+			// replace addresses across the genesis file
+			ASIGenesisUpgradeReplaceAddresses(&appStateStr)
+
+			genDoc.AppState = []byte(appStateStr)
+			return genutil.ExportGenesisFile(genDoc, genFile)
+		},
+	}
+
+	cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
+	cmd.Flags().String(flags.FlagKeyringBackend, flags.DefaultKeyringBackend, "Select keyring's backend (os|file|kwallet|pass|test)")
+	cmd.Flags().String(flagNewDescription, "", "The new description for the native coin in the genesis file")
+	flags.AddQueryFlagsToCmd(cmd)
+
+	return cmd
+}
+
+func ASIGenesisUpgradeReplaceDenomMetadata(cdc codec.Codec, appState *map[string]json.RawMessage) error {
+	bankGenState := banktypes.GetGenesisStateFromAppState(cdc, *appState)
+
+	OldBaseDenomUpper := strings.ToUpper(OldBaseDenom)
+	NewBaseDenomUpper := strings.ToUpper(NewBaseDenom)
+
+	denomRegex := getRegex(OldDenom, NewDenom)
+	upperDenomRegex := getRegex(OldBaseDenomUpper, NewBaseDenomUpper)
+	exponentDenomRegex := getPartialRegexLeft(OldBaseDenom, NewBaseDenom)
+
+	for _, metadata := range bankGenState.DenomMetadata {
+		replaceString(&metadata.Base, []*regexPair{denomRegex})
+		if metadata.Name == OldBaseDenomUpper {
+			metadata.Description = NewDescription
+			metadata.Display = NewBaseDenomUpper
+			metadata.Name = NewBaseDenomUpper
+			metadata.Symbol = NewBaseDenomUpper
+		}
+		for _, unit := range metadata.DenomUnits {
+			replaceString(&unit.Denom, []*regexPair{upperDenomRegex})
+			replaceString(&unit.Denom, []*regexPair{exponentDenomRegex})
+		}
+	}
+
+	bankGenStateBytes, err := cdc.MarshalJSON(bankGenState)
+	if err != nil {
+		return fmt.Errorf("failed to marshal auth genesis state: %w", err)
+	}
+
+	(*appState)[banktypes.ModuleName] = bankGenStateBytes
+	return nil
+}
+
+func ASIGenesisUpgradeReplaceChainID(genesisData *types.GenesisDoc) {
+	genesisData.ChainID = NewChainId
+}
+
+func ASIGenesisUpgradeReplaceDenom(jsonString *string) {
+	for _, target := range []string{"denom", "bond_denom", "mint_denom", "base_denom", "base"} {
+		re := regexp.MustCompile(fmt.Sprintf(`("%s"\s*:\s*)"%s"`, target, OldDenom))
+		if re.MatchString(*jsonString) {
+			*jsonString = re.ReplaceAllString(*jsonString, fmt.Sprintf(`${1}"%s"`, NewDenom))
+		}
+	}
+}
+
+func ASIGenesisUpgradeReplaceAddresses(jsonString *string) {
+	// account addresses
+	replaceAddresses(AccAddressPrefix, jsonString, AddrDataLength+AddrChecksumLength)
+	// validator addresses
+	replaceAddresses(ValAddressPrefix, jsonString, AddrDataLength+AddrChecksumLength)
+	// consensus addresses
+	replaceAddresses(ConsAddressPrefix, jsonString, AddrDataLength+AddrChecksumLength)
+	// contract addresses
+	replaceAddresses(AccAddressPrefix, jsonString, WasmDataLength+AddrChecksumLength)
+}
+
+func replaceAddresses(addressTypePrefix string, jsonString *string, dataLength int) {
+	re := regexp.MustCompile(fmt.Sprintf(`"%s%s1([%s]{%d})"`, OldAddrPrefix, addressTypePrefix, Bech32Chars, dataLength))
+	matches := re.FindAllString(*jsonString, -1)
+
+	replacements := make(map[string]string, len(matches))
+	for _, match := range matches {
+		matchedAddr := strings.ReplaceAll(match, `"`, "")
+		_, decodedAddrData, err := bech32.Decode(matchedAddr)
+		if err != nil {
+			panic(err)
+		}
+
+		newAddress, err := bech32.Encode(NewAddrPrefix+addressTypePrefix, decodedAddrData)
+		if err != nil {
+			panic(err)
+		}
+
+		err = cosmostypes.VerifyAddressFormat(decodedAddrData)
+		if err != nil {
+			panic(err)
+		}
+
+		switch addressTypePrefix {
+		case AccAddressPrefix:
+			_, err = cosmostypes.AccAddressFromBech32(newAddress)
+		case ValAddressPrefix:
+			_, err = cosmostypes.ValAddressFromBech32(newAddress)
+		case ConsAddressPrefix:
+			_, err = cosmostypes.ConsAddressFromBech32(newAddress)
+		default:
+			panic("invalid address type prefix")
+		}
+		if err != nil {
+			panic(err)
+		}
+		replacements[matchedAddr] = newAddress
+	}
+
+	var jsonData map[string]interface{}
+	err := json.Unmarshal([]byte(*jsonString), &jsonData)
+	if err != nil {
+		panic(err)
+	}
+
+	modified := crawlJson(jsonData, func(data interface{}) interface{} {
+		if str, ok := data.(string); ok {
+			if !re.MatchString(fmt.Sprintf(`"%s"`, str)) || len(str) > 200 {
+				return data
+			}
+
+			return replacements[str]
+		}
+		return data
+	})
+
+	modifiedJSON, err := json.Marshal(modified)
+	if err != nil {
+		panic(err)
+	}
+	*jsonString = string(modifiedJSON)
+}
+
+func ASIGenesisUpgradeWithdrawIBCChannelsBalances() {
+
+}
+
+func ASIGenesisUpgradeWithdrawReconciliationBalances() {
+
+}
+
+func getRegex(oldValue string, newValue string) *regexPair {
+	return &regexPair{
+		pattern:     fmt.Sprintf(`^%s$`, oldValue),
+		replacement: fmt.Sprintf(`%s`, newValue),
+	}
+}
+
+func getPartialRegexLeft(oldValue string, newValue string) *regexPair {
+	return &regexPair{
+		pattern:     fmt.Sprintf(`(.*?)%s"`, oldValue),
+		replacement: fmt.Sprintf(`${1}%s"`, newValue),
+	}
+}
+
+func replaceString(s *string, replacements []*regexPair) {
+	for _, pair := range replacements {
+		re := regexp.MustCompile(pair.pattern)
+		if re.MatchString(*s) {
+			*s = re.ReplaceAllString(*s, pair.replacement)
+		}
+	}
+}
+
+type regexPair struct {
+	pattern     string
+	replacement string
+}
+
+func crawlJson(data interface{}, strHandler func(interface{}) interface{}) interface{} {
+	switch value := data.(type) {
+	case string:
+		if strHandler != nil {
+			return strHandler(data)
+		}
+	case []interface{}:
+		for i := range value {
+			value[i] = crawlJson(value[i], strHandler)
+		}
+	case map[string]interface{}:
+		for k := range value {
+			value[k] = crawlJson(value[k], strHandler)
+		}
+	default:
+	}
+	return data
+}

cmd/fetchd/cmd/root.go

@@ -130,6 +130,7 @@ func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
 		// AddStakeReconciliationMigrateCmd(),
 		genutilcli.GenTxCmd(app.ModuleBasics, encodingConfig.TxConfig, banktypes.GenesisBalancesIterator{}, app.DefaultNodeHome),
 		genutilcli.ValidateGenesisCmd(app.ModuleBasics),
+		ASIGenesisUpgradeCmd(app.DefaultNodeHome),
 		AddGenesisAccountCmd(app.DefaultNodeHome),
 		AddGenesisDelegationCmd(app.DefaultNodeHome),
 		ReplaceGenesisValuesCmd(app.DefaultNodeHome),