Deprecate SetFullFundraiserPath in favor of SetPurpose and SetCoinType (#8629)

Co-authored-by: Alessio Treglia <alessio@tendermint.com>

CHANGELOG.md

@@ -48,6 +48,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/gov) [\#8473](https://github.com/cosmos/cosmos-sdk/pull/8473) On genesis init, if the gov module account balance, coming from bank module state, does not match the one in gov module state, the initialization will panic.
 * (x/distribution) [\#8473](https://github.com/cosmos/cosmos-sdk/pull/8473) On genesis init, if the distribution module account balance, coming from bank module state, does not match the one in distribution module state, the initialization will panic.
 * (client/keys) [\#8500](https://github.com/cosmos/cosmos-sdk/pull/8500) `InfoImporter` interface is removed from legacy keybase.
+* [\#8629](https://github.com/cosmos/cosmos-sdk/pull/8629) Deprecated `SetFullFundraiserPath` from `Config` in favor of `SetPurpose` and `SetCoinType`.
 
 ### State Machine Breaking
 

client/keys/add_ledger_test.go

@@ -29,8 +29,8 @@ func Test_runAddCmdLedgerWithCustomCoinType(t *testing.T) {
 	bech32PrefixConsAddr := "terravalcons"
 	bech32PrefixConsPub := "terravalconspub"
 
+	config.SetPurpose(44)
 	config.SetCoinType(330)
-	config.SetFullFundraiserPath("44'/330'/0'/0/0")
 	config.SetBech32PrefixForAccount(bech32PrefixAccAddr, bech32PrefixAccPub)
 	config.SetBech32PrefixForValidator(bech32PrefixValAddr, bech32PrefixValPub)
 	config.SetBech32PrefixForConsensusNode(bech32PrefixConsAddr, bech32PrefixConsPub)
@@ -77,8 +77,8 @@ func Test_runAddCmdLedgerWithCustomCoinType(t *testing.T) {
 		"terrapub1addwnpepqvpg7r26nl2pvqqern00m6s9uaax3hauu2rzg8qpjzq9hy6xve7sw0d84m6",
 		sdk.MustBech32ifyPubKey(sdk.Bech32PubKeyTypeAccPub, key1.GetPubKey()))
 
+	config.SetPurpose(44)
 	config.SetCoinType(118)
-	config.SetFullFundraiserPath("44'/118'/0'/0/0")
 	config.SetBech32PrefixForAccount(sdk.Bech32PrefixAccAddr, sdk.Bech32PrefixAccPub)
 	config.SetBech32PrefixForValidator(sdk.Bech32PrefixValAddr, sdk.Bech32PrefixValPub)
 	config.SetBech32PrefixForConsensusNode(sdk.Bech32PrefixConsAddr, sdk.Bech32PrefixConsPub)

client/keys/delete_test.go

@@ -31,7 +31,7 @@ func Test_runDeleteCmd(t *testing.T) {
 	fakeKeyName1 := "runDeleteCmd_Key1"
 	fakeKeyName2 := "runDeleteCmd_Key2"
 
-	path := sdk.GetConfig().GetFullFundraiserPath()
+	path := sdk.GetConfig().GetFullBIP44Path()
 
 	kb, err := keyring.New(sdk.KeyringServiceName(), keyring.BackendTest, kbHome, mockIn)
 	require.NoError(t, err)

client/keys/export_test.go

@@ -31,7 +31,7 @@ func Test_runExportCmd(t *testing.T) {
 		kb.Delete("keyname1") // nolint:errcheck
 	})
 
-	path := sdk.GetConfig().GetFullFundraiserPath()
+	path := sdk.GetConfig().GetFullBIP44Path()
 	_, err = kb.NewAccount("keyname1", testutil.TestMnemonic, "", path, hd.Secp256k1)
 	require.NoError(t, err)
 

client/keys/list_test.go

@@ -30,7 +30,7 @@ func Test_runListCmd(t *testing.T) {
 	clientCtx := client.Context{}.WithKeyring(kb)
 	ctx := context.WithValue(context.Background(), client.ClientContextKey, &clientCtx)
 
-	path := "" //sdk.GetConfig().GetFullFundraiserPath()
+	path := "" //sdk.GetConfig().GetFullBIP44Path()
 	_, err = kb.NewAccount("something", testutil.TestMnemonic, "", path, hd.Secp256k1)
 	require.NoError(t, err)
 

types/address.go

@@ -26,13 +26,16 @@ const (
 	//	config.SetBech32PrefixForAccount(yourBech32PrefixAccAddr, yourBech32PrefixAccPub)
 	//	config.SetBech32PrefixForValidator(yourBech32PrefixValAddr, yourBech32PrefixValPub)
 	//	config.SetBech32PrefixForConsensusNode(yourBech32PrefixConsAddr, yourBech32PrefixConsPub)
+	//	config.SetPurpose(yourPurpose)
 	//	config.SetCoinType(yourCoinType)
-	//	config.SetFullFundraiserPath(yourFullFundraiserPath)
 	//	config.Seal()
 
 	// Bech32MainPrefix defines the main SDK Bech32 prefix of an account's address
 	Bech32MainPrefix = "cosmos"
 
+	// Purpose is the ATOM purpose as defined in SLIP44 (https://github.com/satoshilabs/slips/blob/master/slip-0044.md)
+	Purpose = 44
+
 	// CoinType is the ATOM coin type as defined in SLIP44 (https://github.com/satoshilabs/slips/blob/master/slip-0044.md)
 	CoinType = 118
 

types/config.go

@@ -2,6 +2,7 @@ package types
 
 import (
 	"context"
+	"fmt"
 	"sync"
 
 	"github.com/cosmos/cosmos-sdk/version"
@@ -18,9 +19,13 @@ type Config struct {
 	txEncoder           TxEncoder
 	addressVerifier     func([]byte) error
 	mtx                 sync.RWMutex
-	coinType            uint32
-	sealed              bool
-	sealedch            chan struct{}
+
+	// SLIP-44 related
+	purpose  uint32
+	coinType uint32
+
+	sealed   bool
+	sealedch chan struct{}
 }
 
 // cosmos-sdk wide global singleton
@@ -41,9 +46,11 @@ func NewConfig() *Config {
 			"validator_pub":  Bech32PrefixValPub,
 			"consensus_pub":  Bech32PrefixConsPub,
 		},
-		coinType:           CoinType,
 		fullFundraiserPath: FullFundraiserPath,
-		txEncoder:          nil,
+
+		purpose:   Purpose,
+		coinType:  CoinType,
+		txEncoder: nil,
 	}
 }
 
@@ -112,18 +119,26 @@ func (config *Config) SetAddressVerifier(addressVerifier func([]byte) error) {
 	config.addressVerifier = addressVerifier
 }
 
+// Set the FullFundraiserPath (BIP44Prefix) on the config.
+//
+// Deprecated: This method is supported for backward compatibility only and will be removed in a future release. Use SetPurpose and SetCoinType instead.
+func (config *Config) SetFullFundraiserPath(fullFundraiserPath string) {
+	config.assertNotSealed()
+	config.fullFundraiserPath = fullFundraiserPath
+}
+
+// Set the BIP-0044 Purpose code on the config
+func (config *Config) SetPurpose(purpose uint32) {
+	config.assertNotSealed()
+	config.purpose = purpose
+}
+
 // Set the BIP-0044 CoinType code on the config
 func (config *Config) SetCoinType(coinType uint32) {
 	config.assertNotSealed()
 	config.coinType = coinType
 }
 
-// Set the FullFundraiserPath (BIP44Prefix) on the config
-func (config *Config) SetFullFundraiserPath(fullFundraiserPath string) {
-	config.assertNotSealed()
-	config.fullFundraiserPath = fullFundraiserPath
-}
-
 // Seal seals the config such that the config state could not be modified further
 func (config *Config) Seal() *Config {
 	config.mtx.Lock()
@@ -181,16 +196,28 @@ func (config *Config) GetAddressVerifier() func([]byte) error {
 	return config.addressVerifier
 }
 
+// GetPurpose returns the BIP-0044 Purpose code on the config.
+func (config *Config) GetPurpose() uint32 {
+	return config.purpose
+}
+
 // GetCoinType returns the BIP-0044 CoinType code on the config.
 func (config *Config) GetCoinType() uint32 {
 	return config.coinType
 }
 
 // GetFullFundraiserPath returns the BIP44Prefix.
+//
+// Deprecated: This method is supported for backward compatibility only and will be removed in a future release. Use GetFullBIP44Path instead.
 func (config *Config) GetFullFundraiserPath() string {
 	return config.fullFundraiserPath
 }
 
+// GetFullBIP44Path returns the BIP44Prefix.
+func (config *Config) GetFullBIP44Path() string {
+	return fmt.Sprintf("m/%d'/%d'/0'/0/0", config.purpose, config.coinType)
+}
+
 func KeyringServiceName() string {
 	if len(version.Name) == 0 {
 		return DefaultKeyringServiceName

types/config_test.go

@@ -17,6 +17,18 @@ func TestConfigTestSuite(t *testing.T) {
 	suite.Run(t, new(configTestSuite))
 }
 
+func (s *contextTestSuite) TestConfig_SetPurpose() {
+	config := sdk.NewConfig()
+	config.SetPurpose(44)
+	s.Require().Equal(uint32(44), config.GetPurpose())
+
+	config.SetPurpose(0)
+	s.Require().Equal(uint32(0), config.GetPurpose())
+
+	config.Seal()
+	s.Require().Panics(func() { config.SetPurpose(10) })
+}
+
 func (s *configTestSuite) TestConfig_SetCoinType() {
 	config := sdk.NewConfig()
 	config.SetCoinType(1)

x/authz/types/authorization_grant.go

@@ -3,10 +3,11 @@ package types
 import (
 	"time"
 
+	proto "github.com/gogo/protobuf/proto"
+
 	"github.com/cosmos/cosmos-sdk/codec/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/x/authz/exported"
-	proto "github.com/gogo/protobuf/proto"
 )
 
 // NewAuthorizationGrant returns new AuthrizationGrant

x/staking/types/authz.go

@@ -1,10 +1,11 @@
 package types
 
 import (
+	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	authz "github.com/cosmos/cosmos-sdk/x/authz/exported"
-	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 )
 
 var (

x/staking/types/authz_test.go

@@ -5,9 +5,10 @@ import (
 
 	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 
+	"github.com/stretchr/testify/require"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
-	"github.com/stretchr/testify/require"
 )
 
 var (