chore: use cosmossdk.io/errors (#1448)

Closes #1446

Before: `make lint` showed warnings
After: `make lint` shows no more warnings

```shell
$ make lint
--> Running golangci-lint
--> Running markdownlint
```

app/verify_txs.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"runtime/debug"
 
+	"cosmossdk.io/errors"
 	"github.com/cosmos/cosmos-sdk/client"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
@@ -33,7 +34,7 @@ func incrementSequenceAnteHandler(accKeeper *authkeeper.AccountKeeper) sdk.AnteH
 // recoverHandler will simply wrap the caught panic in an error containing the
 // stack trace.
 func recoverHandler(recoveryObj interface{}) error {
-	return sdkerrors.Wrap(
+	return errors.Wrap(
 		sdkerrors.ErrPanic, fmt.Sprintf(
 			"recovered: %v\nstack:\n%v", recoveryObj, string(debug.Stack()),
 		),

x/blob/handler.go

@@ -3,6 +3,7 @@ package blob
 import (
 	"fmt"
 
+	"cosmossdk.io/errors"
 	"github.com/celestiaorg/celestia-app/x/blob/keeper"
 	"github.com/celestiaorg/celestia-app/x/blob/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -21,7 +22,7 @@ func NewHandler(k keeper.Keeper) sdk.Handler {
 			return sdk.WrapServiceResult(ctx, res, err)
 		default:
 			errMsg := fmt.Sprintf("unrecognized %s message type: %T", types.ModuleName, msg)
-			return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, errMsg)
+			return nil, errors.Wrap(sdkerrors.ErrUnknownRequest, errMsg)
 		}
 	}
 }

x/blob/types/errors.go

@@ -3,34 +3,34 @@ package types
 // DONTCOVER
 
 import (
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+	"cosmossdk.io/errors"
 )
 
 var (
-	ErrReservedNamespace              = sdkerrors.Register(ModuleName, 11110, "cannot use reserved namespace IDs")
-	ErrInvalidNamespaceLen            = sdkerrors.Register(ModuleName, 11111, "invalid namespace length")
-	ErrInvalidDataSize                = sdkerrors.Register(ModuleName, 11112, "data must be multiple of shareSize")
-	ErrBlobSizeMismatch               = sdkerrors.Register(ModuleName, 11113, "actual blob size differs from that specified in the MsgPayForBlob")
-	ErrCommittedSquareSizeNotPowOf2   = sdkerrors.Register(ModuleName, 11114, "committed to invalid square size: must be power of two")
-	ErrCalculateCommitment            = sdkerrors.Register(ModuleName, 11115, "unexpected error calculating commitment for share")
-	ErrInvalidShareCommitment         = sdkerrors.Register(ModuleName, 11116, "invalid commitment for share")
-	ErrParitySharesNamespace          = sdkerrors.Register(ModuleName, 11117, "cannot use parity shares namespace ID")
-	ErrTailPaddingNamespace           = sdkerrors.Register(ModuleName, 11118, "cannot use tail padding namespace ID")
-	ErrTxNamespace                    = sdkerrors.Register(ModuleName, 11119, "cannot use transaction namespace ID")
-	ErrEvidenceNamespace              = sdkerrors.Register(ModuleName, 11120, "cannot use evidence namespace ID")
-	ErrEmptyShareCommitment           = sdkerrors.Register(ModuleName, 11121, "empty share commitment")
-	ErrInvalidShareCommitments        = sdkerrors.Register(ModuleName, 11122, "invalid share commitments: all relevant square sizes must be committed to")
-	ErrUnsupportedShareVersion        = sdkerrors.Register(ModuleName, 11123, "unsupported share version")
-	ErrZeroBlobSize                   = sdkerrors.Register(ModuleName, 11124, "cannot use zero blob size")
-	ErrMismatchedNumberOfPFBorBlob    = sdkerrors.Register(ModuleName, 11125, "mismatched number of blobs per MsgPayForBlob")
-	ErrNoPFB                          = sdkerrors.Register(ModuleName, 11126, "no MsgPayForBlobs found in blob transaction")
-	ErrNamespaceMismatch              = sdkerrors.Register(ModuleName, 11127, "namespace of blob and its respective MsgPayForBlobs differ")
-	ErrProtoParsing                   = sdkerrors.Register(ModuleName, 11128, "failure to parse a transaction from its protobuf representation")
-	ErrMultipleMsgsInBlobTx           = sdkerrors.Register(ModuleName, 11129, "not yet supported: multiple sdk.Msgs found in BlobTx")
-	ErrMismatchedNumberOfPFBComponent = sdkerrors.Register(ModuleName, 11130, "number of each component in a MsgPayForBlobs must be identical")
-	ErrNoBlobs                        = sdkerrors.Register(ModuleName, 11131, "no blobs provided")
-	ErrNoNamespaceIds                 = sdkerrors.Register(ModuleName, 11132, "no namespace IDs provided")
-	ErrNoShareVersions                = sdkerrors.Register(ModuleName, 11133, "no share versions provided")
-	ErrNoBlobSizes                    = sdkerrors.Register(ModuleName, 11134, "no blob sizes provided")
-	ErrNoShareCommitments             = sdkerrors.Register(ModuleName, 11135, "no share commitments provided")
+	ErrReservedNamespace              = errors.Register(ModuleName, 11110, "cannot use reserved namespace IDs")
+	ErrInvalidNamespaceLen            = errors.Register(ModuleName, 11111, "invalid namespace length")
+	ErrInvalidDataSize                = errors.Register(ModuleName, 11112, "data must be multiple of shareSize")
+	ErrBlobSizeMismatch               = errors.Register(ModuleName, 11113, "actual blob size differs from that specified in the MsgPayForBlob")
+	ErrCommittedSquareSizeNotPowOf2   = errors.Register(ModuleName, 11114, "committed to invalid square size: must be power of two")
+	ErrCalculateCommitment            = errors.Register(ModuleName, 11115, "unexpected error calculating commitment for share")
+	ErrInvalidShareCommitment         = errors.Register(ModuleName, 11116, "invalid commitment for share")
+	ErrParitySharesNamespace          = errors.Register(ModuleName, 11117, "cannot use parity shares namespace ID")
+	ErrTailPaddingNamespace           = errors.Register(ModuleName, 11118, "cannot use tail padding namespace ID")
+	ErrTxNamespace                    = errors.Register(ModuleName, 11119, "cannot use transaction namespace ID")
+	ErrEvidenceNamespace              = errors.Register(ModuleName, 11120, "cannot use evidence namespace ID")
+	ErrEmptyShareCommitment           = errors.Register(ModuleName, 11121, "empty share commitment")
+	ErrInvalidShareCommitments        = errors.Register(ModuleName, 11122, "invalid share commitments: all relevant square sizes must be committed to")
+	ErrUnsupportedShareVersion        = errors.Register(ModuleName, 11123, "unsupported share version")
+	ErrZeroBlobSize                   = errors.Register(ModuleName, 11124, "cannot use zero blob size")
+	ErrMismatchedNumberOfPFBorBlob    = errors.Register(ModuleName, 11125, "mismatched number of blobs per MsgPayForBlob")
+	ErrNoPFB                          = errors.Register(ModuleName, 11126, "no MsgPayForBlobs found in blob transaction")
+	ErrNamespaceMismatch              = errors.Register(ModuleName, 11127, "namespace of blob and its respective MsgPayForBlobs differ")
+	ErrProtoParsing                   = errors.Register(ModuleName, 11128, "failure to parse a transaction from its protobuf representation")
+	ErrMultipleMsgsInBlobTx           = errors.Register(ModuleName, 11129, "not yet supported: multiple sdk.Msgs found in BlobTx")
+	ErrMismatchedNumberOfPFBComponent = errors.Register(ModuleName, 11130, "number of each component in a MsgPayForBlobs must be identical")
+	ErrNoBlobs                        = errors.Register(ModuleName, 11131, "no blobs provided")
+	ErrNoNamespaceIds                 = errors.Register(ModuleName, 11132, "no namespace IDs provided")
+	ErrNoShareVersions                = errors.Register(ModuleName, 11133, "no share versions provided")
+	ErrNoBlobSizes                    = errors.Register(ModuleName, 11134, "no blob sizes provided")
+	ErrNoShareCommitments             = errors.Register(ModuleName, 11135, "no share commitments provided")
 )

x/qgb/abci.go

@@ -3,10 +3,10 @@ package qgb
 import (
 	"errors"
 
+	sdkerrors "cosmossdk.io/errors"
 	"github.com/celestiaorg/celestia-app/x/qgb/keeper"
 	"github.com/celestiaorg/celestia-app/x/qgb/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 )
 
 // SignificantPowerDifferenceThreshold the threshold of change in the validator set power

x/qgb/handler.go

@@ -3,6 +3,7 @@ package qgb
 import (
 	"fmt"
 
+	"cosmossdk.io/errors"
 	"github.com/celestiaorg/celestia-app/x/qgb/keeper"
 	"github.com/celestiaorg/celestia-app/x/qgb/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -17,7 +18,7 @@ func NewHandler(_ keeper.Keeper) sdk.Handler {
 		switch msg := msg.(type) {
 		default:
 			errMsg := fmt.Sprintf("unrecognized %s message type: %T", types.ModuleName, msg)
-			return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, errMsg)
+			return nil, errors.Wrap(sdkerrors.ErrUnknownRequest, errMsg)
 		}
 	}
 }

x/qgb/keeper/keeper_data_commitment.go

@@ -3,9 +3,9 @@ package keeper
 import (
 	"fmt"
 
+	"cosmossdk.io/errors"
 	"github.com/celestiaorg/celestia-app/x/qgb/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 )
 
 // TODO add unit tests for all the keepers
@@ -38,7 +38,7 @@ func (k Keeper) GetDataCommitmentForHeight(ctx sdk.Context, height uint64) (type
 		return types.DataCommitment{}, err
 	}
 	if lastDC.EndBlock < height {
-		return types.DataCommitment{}, sdkerrors.Wrap(
+		return types.DataCommitment{}, errors.Wrap(
 			types.ErrDataCommitmentNotGenerated,
 			fmt.Sprintf(
 				"Last height %d < %d",
@@ -55,7 +55,7 @@ func (k Keeper) GetDataCommitmentForHeight(ctx sdk.Context, height uint64) (type
 			return types.DataCommitment{}, err
 		}
 		if !found {
-			return types.DataCommitment{}, sdkerrors.Wrap(types.ErrAttestationNotFound, fmt.Sprintf("nonce %d", i))
+			return types.DataCommitment{}, errors.Wrap(types.ErrAttestationNotFound, fmt.Sprintf("nonce %d", i))
 		}
 		dcc, ok := att.(*types.DataCommitment)
 		if !ok {
@@ -65,7 +65,7 @@ func (k Keeper) GetDataCommitmentForHeight(ctx sdk.Context, height uint64) (type
 			return *dcc, nil
 		}
 	}
-	return types.DataCommitment{}, sdkerrors.Wrap(types.ErrDataCommitmentNotFound, "data commitment for height not found")
+	return types.DataCommitment{}, errors.Wrap(types.ErrDataCommitmentNotFound, "data commitment for height not found")
 }
 
 // GetLastDataCommitment returns the last data commitment.
@@ -77,7 +77,7 @@ func (k Keeper) GetLastDataCommitment(ctx sdk.Context) (types.DataCommitment, er
 			return types.DataCommitment{}, err
 		}
 		if !found {
-			return types.DataCommitment{}, sdkerrors.Wrapf(types.ErrAttestationNotFound, fmt.Sprintf("nonce %d", latestNonce-i))
+			return types.DataCommitment{}, errors.Wrapf(types.ErrAttestationNotFound, fmt.Sprintf("nonce %d", latestNonce-i))
 		}
 		dcc, ok := att.(*types.DataCommitment)
 		if !ok {

x/qgb/keeper/keeper_valset.go

@@ -6,8 +6,10 @@ import (
 
 	cosmosmath "cosmossdk.io/math"
 	"github.com/celestiaorg/celestia-app/x/qgb/types"
+
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
+	"cosmossdk.io/errors"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
@@ -25,21 +27,21 @@ func (k Keeper) GetLatestValset(ctx sdk.Context) (*types.Valset, error) {
 			return nil, err
 		}
 		if !found {
-			panic(sdkerrors.Wrap(
+			panic(errors.Wrap(
 				types.ErrNilAttestation,
 				fmt.Sprintf("stumbled upon nil attestation for nonce %d", i),
 			))
 		}
 		if at.Type() == types.ValsetRequestType {
 			valset, ok := at.(*types.Valset)
 			if !ok {
-				return nil, sdkerrors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
+				return nil, errors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
 			}
 			return valset, nil
 		}
 	}
 	// should never execute
-	panic(sdkerrors.Wrap(sdkerrors.ErrNotFound, "couldn't find latest valset"))
+	panic(errors.Wrap(sdkerrors.ErrNotFound, "couldn't find latest valset"))
 }
 
 // SetLastUnBondingBlockHeight sets the last unbonding block height. Note this
@@ -78,7 +80,7 @@ func (k Keeper) GetCurrentValset(ctx sdk.Context) (types.Valset, error) {
 	for _, validator := range validators {
 		val := validator.GetOperator()
 		if err := sdk.VerifyAddressFormat(val); err != nil {
-			return types.Valset{}, sdkerrors.Wrap(err, types.ErrInvalidValAddress.Error())
+			return types.Valset{}, errors.Wrap(err, types.ErrInvalidValAddress.Error())
 		}
 
 		p := sdk.NewInt(k.StakingKeeper.GetLastValidatorPower(ctx, val))
@@ -87,7 +89,7 @@ func (k Keeper) GetCurrentValset(ctx sdk.Context) (types.Valset, error) {
 		bv := types.BridgeValidator{Power: p.Uint64(), EvmAddress: validator.EvmAddress}
 		ibv, err := types.NewInternalBridgeValidator(bv)
 		if err != nil {
-			return types.Valset{}, sdkerrors.Wrapf(err, types.ErrInvalidEVMAddress.Error(), val)
+			return types.Valset{}, errors.Wrapf(err, types.ErrInvalidEVMAddress.Error(), val)
 		}
 		bridgeValidators = append(bridgeValidators, ibv)
 		totalPower = totalPower.Add(p)
@@ -102,7 +104,7 @@ func (k Keeper) GetCurrentValset(ctx sdk.Context) (types.Valset, error) {
 
 	valset, err := types.NewValset(valsetNonce, uint64(ctx.BlockHeight()), bridgeValidators)
 	if err != nil {
-		return types.Valset{}, (sdkerrors.Wrap(err, types.ErrInvalidValset.Error()))
+		return types.Valset{}, (errors.Wrap(err, types.ErrInvalidValset.Error()))
 	}
 	return *valset, nil
 }
@@ -146,20 +148,20 @@ func (k Keeper) GetLastValsetBeforeNonce(ctx sdk.Context, nonce uint64) (*types.
 			return nil, err
 		}
 		if !found {
-			return nil, sdkerrors.Wrap(
+			return nil, errors.Wrap(
 				types.ErrNilAttestation,
 				fmt.Sprintf("nonce=%d", nonce-i),
 			)
 		}
 		if at.Type() == types.ValsetRequestType {
 			valset, ok := at.(*types.Valset)
 			if !ok {
-				return nil, sdkerrors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
+				return nil, errors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
 			}
 			return valset, nil
 		}
 	}
-	return nil, sdkerrors.Wrap(
+	return nil, errors.Wrap(
 		sdkerrors.ErrNotFound,
 		fmt.Sprintf("couldn't find valset before nonce %d", nonce),
 	)
@@ -177,12 +179,12 @@ func (k Keeper) GetValsetByNonce(ctx sdk.Context, nonce uint64) (*types.Valset,
 		return nil, false, nil
 	}
 	if at.Type() != types.ValsetRequestType {
-		return nil, false, sdkerrors.Wrap(types.ErrAttestationNotValsetRequest, "attestation is not a valset request")
+		return nil, false, errors.Wrap(types.ErrAttestationNotValsetRequest, "attestation is not a valset request")
 	}
 
 	valset, ok := at.(*types.Valset)
 	if !ok {
-		return nil, false, sdkerrors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
+		return nil, false, errors.Wrap(types.ErrAttestationNotValsetRequest, "couldn't cast attestation to valset")
 	}
 	return valset, true, nil
 }

x/qgb/types/errors.go

@@ -1,20 +1,22 @@
 package types
 
-import sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+import (
+	"cosmossdk.io/errors"
+)
 
 var (
-	ErrDuplicate                             = sdkerrors.Register(ModuleName, 2, "duplicate")
-	ErrEmpty                                 = sdkerrors.Register(ModuleName, 6, "empty")
-	ErrNoValidators                          = sdkerrors.Register(ModuleName, 12, "no bonded validators in active set")
-	ErrInvalidValAddress                     = sdkerrors.Register(ModuleName, 13, "invalid validator address in current valset %v")
-	ErrInvalidEVMAddress                     = sdkerrors.Register(ModuleName, 14, "discovered invalid EVM address stored for validator %v")
-	ErrInvalidValset                         = sdkerrors.Register(ModuleName, 15, "generated invalid valset")
-	ErrAttestationNotValsetRequest           = sdkerrors.Register(ModuleName, 16, "attestation is not a valset request")
-	ErrAttestationNotFound                   = sdkerrors.Register(ModuleName, 18, "attestation not found")
-	ErrNilAttestation                        = sdkerrors.Register(ModuleName, 22, "nil attestation")
-	ErrUnmarshalllAttestation                = sdkerrors.Register(ModuleName, 26, "couldn't unmarshall attestation from store")
-	ErrNonceHigherThanLatestAttestationNonce = sdkerrors.Register(ModuleName, 27, "the provided nonce is higher than the latest attestation nonce")
-	ErrNoValsetBeforeNonceOne                = sdkerrors.Register(ModuleName, 28, "there is no valset before attestation nonce 1")
-	ErrDataCommitmentNotGenerated            = sdkerrors.Register(ModuleName, 29, "no data commitment has been generated for the provided height")
-	ErrDataCommitmentNotFound                = sdkerrors.Register(ModuleName, 30, "data commitment not found")
+	ErrDuplicate                             = errors.Register(ModuleName, 2, "duplicate")
+	ErrEmpty                                 = errors.Register(ModuleName, 6, "empty")
+	ErrNoValidators                          = errors.Register(ModuleName, 12, "no bonded validators in active set")
+	ErrInvalidValAddress                     = errors.Register(ModuleName, 13, "invalid validator address in current valset %v")
+	ErrInvalidEVMAddress                     = errors.Register(ModuleName, 14, "discovered invalid EVM address stored for validator %v")
+	ErrInvalidValset                         = errors.Register(ModuleName, 15, "generated invalid valset")
+	ErrAttestationNotValsetRequest           = errors.Register(ModuleName, 16, "attestation is not a valset request")
+	ErrAttestationNotFound                   = errors.Register(ModuleName, 18, "attestation not found")
+	ErrNilAttestation                        = errors.Register(ModuleName, 22, "nil attestation")
+	ErrUnmarshalllAttestation                = errors.Register(ModuleName, 26, "couldn't unmarshall attestation from store")
+	ErrNonceHigherThanLatestAttestationNonce = errors.Register(ModuleName, 27, "the provided nonce is higher than the latest attestation nonce")
+	ErrNoValsetBeforeNonceOne                = errors.Register(ModuleName, 28, "there is no valset before attestation nonce 1")
+	ErrDataCommitmentNotGenerated            = errors.Register(ModuleName, 29, "no data commitment has been generated for the provided height")
+	ErrDataCommitmentNotFound                = errors.Register(ModuleName, 30, "data commitment not found")
 )

x/qgb/types/genesis.go

@@ -3,8 +3,7 @@ package types
 import (
 	"fmt"
 
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-
+	"cosmossdk.io/errors"
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
 )
 
@@ -30,7 +29,7 @@ func DefaultGenesis() *GenesisState {
 func (gs GenesisState) Validate() error {
 	// this line is used by starport scaffolding # genesis/types/validate
 	if err := gs.Params.ValidateBasic(); err != nil {
-		return sdkerrors.Wrap(err, "params")
+		return errors.Wrap(err, "params")
 	}
 	return nil
 }
@@ -61,7 +60,7 @@ func validateDataCommitmentWindow(i interface{}) error {
 // ValidateBasic checks that the parameters have valid values.
 func (p Params) ValidateBasic() error {
 	if err := validateDataCommitmentWindow(p.DataCommitmentWindow); err != nil {
-		return sdkerrors.Wrap(err, "data commitment window")
+		return errors.Wrap(err, "data commitment window")
 	}
 	return nil
 }

x/qgb/types/validator.go

@@ -9,7 +9,7 @@ import (
 
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
 
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+	"cosmossdk.io/errors"
 )
 
 // ToInternal transforms a BridgeValidator into its fully validated internal type.
@@ -25,7 +25,7 @@ func (b BridgeValidators) ToInternal() (*InternalBridgeValidators, error) {
 	for i := range b {
 		ibv, err := NewInternalBridgeValidator(b[i])
 		if err != nil {
-			return nil, sdkerrors.Wrapf(err, "member %d", i)
+			return nil, errors.Wrapf(err, "member %d", i)
 		}
 		ret[i] = ibv
 	}
@@ -48,14 +48,14 @@ func NewInternalBridgeValidator(bridgeValidator BridgeValidator) (*InternalBridg
 		EVMAddress: validatorEVMAddr,
 	}
 	if err := i.ValidateBasic(); err != nil {
-		return nil, sdkerrors.Wrap(err, "invalid bridge validator")
+		return nil, errors.Wrap(err, "invalid bridge validator")
 	}
 	return i, nil
 }
 
 func (i InternalBridgeValidator) ValidateBasic() error {
 	if i.Power == 0 {
-		return sdkerrors.Wrap(ErrEmpty, "power")
+		return errors.Wrap(ErrEmpty, "power")
 	}
 	return nil
 }
@@ -170,11 +170,11 @@ func (ibv InternalBridgeValidators) ValidateBasic() error {
 	}
 	for i := range ibv {
 		if err := ibv[i].ValidateBasic(); err != nil {
-			return sdkerrors.Wrapf(err, "member %d", i)
+			return errors.Wrapf(err, "member %d", i)
 		}
 	}
 	if ibv.HasDuplicates() {
-		return sdkerrors.Wrap(ErrDuplicate, "addresses")
+		return errors.Wrap(ErrDuplicate, "addresses")
 	}
 	return nil
 }