R4R: Removing pkg/errors when not necessary

baseapp/baseapp.go

@@ -7,8 +7,9 @@ import (
 	"runtime/debug"
 	"strings"
 
+	"errors"
+
 	"github.com/gogo/protobuf/proto"
-	"github.com/pkg/errors"
 
 	abci "github.com/tendermint/tendermint/abci/types"
 	"github.com/tendermint/tendermint/crypto/tmhash"

client/context/broadcast.go

@@ -1,7 +1,7 @@
 package context
 
 import (
-	"github.com/pkg/errors"
+	"fmt"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
@@ -39,11 +39,11 @@ func (ctx CLIContext) BroadcastTxAndAwaitCommit(tx []byte) (sdk.TxResponse, erro
 	}
 
 	if !res.CheckTx.IsOK() {
-		return sdk.NewResponseFormatBroadcastTxCommit(res), errors.Errorf(res.CheckTx.Log)
+		return sdk.NewResponseFormatBroadcastTxCommit(res), fmt.Errorf(res.CheckTx.Log)
 	}
 
 	if !res.DeliverTx.IsOK() {
-		return sdk.NewResponseFormatBroadcastTxCommit(res), errors.Errorf(res.DeliverTx.Log)
+		return sdk.NewResponseFormatBroadcastTxCommit(res), fmt.Errorf(res.DeliverTx.Log)
 	}
 
 	return sdk.NewResponseFormatBroadcastTxCommit(res), err

client/context/errors.go

@@ -1,22 +1,22 @@
 package context
 
 import (
-	"github.com/pkg/errors"
+	"fmt"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
 // ErrInvalidAccount returns a standardized error reflecting that a given
 // account address does not exist.
 func ErrInvalidAccount(addr sdk.AccAddress) error {
-	return errors.Errorf(`No account with address %s was found in the state.
+	return fmt.Errorf(`No account with address %s was found in the state.
 Are you sure there has been a transaction involving it?`, addr)
 }
 
 // ErrVerifyCommit returns a common error reflecting that the blockchain commit at a given
 // height can't be verified. The reason is that the base checkpoint of the certifier is
 // newer than the given height
 func ErrVerifyCommit(height int64) error {
-	return errors.Errorf(`The height of base truststore in gaia-lite is higher than height %d. 
+	return fmt.Errorf(`The height of base truststore in gaia-lite is higher than height %d. 
 Can't verify blockchain proof at this height. Please set --trust-node to true and try again`, height)
 }

client/context/query.go

@@ -164,7 +164,7 @@ func (ctx CLIContext) query(path string, key cmn.HexBytes) (res []byte, err erro
 
 	resp := result.Response
 	if !resp.IsOK() {
-		return res, errors.Errorf(resp.Log)
+		return res, errors.New(resp.Log)
 	}
 
 	// data from trusted node or subspace query doesn't need verification

client/input.go

@@ -6,9 +6,10 @@ import (
 	"os"
 	"strings"
 
+	"errors"
+
 	"github.com/bgentry/speakeasy"
 	"github.com/mattn/go-isatty"
-	"github.com/pkg/errors"
 )
 
 // MinPassLength is the minimum acceptable password length
@@ -36,7 +37,7 @@ func GetPassword(prompt string, buf *bufio.Reader) (pass string, err error) {
 	if len(pass) < MinPassLength {
 		// Return the given password to the upstream client so it can handle a
 		// non-STDIN failure gracefully.
-		return pass, errors.Errorf("password must be at least %d characters", MinPassLength)
+		return pass, fmt.Errorf("password must be at least %d characters", MinPassLength)
 	}
 
 	return pass, nil

client/keys/add.go

@@ -14,8 +14,9 @@ import (
 	"github.com/cosmos/cosmos-sdk/crypto/keys"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 
+	"errors"
+
 	"github.com/gorilla/mux"
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
@@ -297,7 +298,7 @@ func printCreate(info keys.Info, showMnemonic bool, mnemonic string) error {
 		}
 		fmt.Fprintln(os.Stderr, string(jsonString))
 	default:
-		return errors.Errorf("I can't speak: %s", output)
+		return fmt.Errorf("I can't speak: %s", output)
 	}
 
 	return nil

client/keys/show.go

@@ -8,8 +8,9 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/crypto/keys"
 
+	"errors"
+
 	"github.com/gorilla/mux"
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 	"github.com/tendermint/tendermint/crypto/multisig"

cmd/gaia/init/validate_genesis.go

@@ -7,7 +7,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/cmd/gaia/app"
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/server"
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/tendermint/tendermint/types"
 )
@@ -33,16 +32,16 @@ func ValidateGenesisCmd(ctx *server.Context, cdc *codec.Codec) *cobra.Command {
 
 			var genDoc types.GenesisDoc
 			if genDoc, err = LoadGenesisDoc(cdc, genesis); err != nil {
-				return errors.Errorf("Error loading genesis doc from %s: %s", genesis, err.Error())
+				return fmt.Errorf("Error loading genesis doc from %s: %s", genesis, err.Error())
 			}
 
 			var genstate app.GenesisState
 			if err = cdc.UnmarshalJSON(genDoc.AppState, &genstate); err != nil {
-				return errors.Errorf("Error unmarshaling genesis doc %s: %s", genesis, err.Error())
+				return fmt.Errorf("Error unmarshaling genesis doc %s: %s", genesis, err.Error())
 			}
 
 			if err = app.GaiaValidateGenesisState(genstate); err != nil {
-				return errors.Errorf("Error validating genesis file %s: %s", genesis, err.Error())
+				return fmt.Errorf("Error validating genesis file %s: %s", genesis, err.Error())
 			}
 
 			fmt.Printf("File at %s is a valid genesis file for gaiad\n", genesis)

crypto/keys/keybase.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/pkg/errors"
+	"errors"
 
 	"github.com/cosmos/cosmos-sdk/crypto"
 	"github.com/cosmos/cosmos-sdk/crypto/keys/hd"

server/export.go

@@ -3,7 +3,6 @@ package server
 import (
 	"fmt"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
@@ -58,7 +57,7 @@ func ExportCmd(ctx *Context, cdc *codec.Codec, appExporter AppExporter) *cobra.C
 			jailWhiteList := viper.GetStringSlice(flagJailWhitelist)
 			appState, validators, err := appExporter(ctx.Logger, db, traceWriter, height, forZeroHeight, jailWhiteList)
 			if err != nil {
-				return errors.Errorf("error exporting state: %v\n", err)
+				return fmt.Errorf("error exporting state: %v", err)
 			}
 
 			doc, err := tmtypes.GenesisDocFromFile(ctx.Config.GenesisFile())

server/start.go

@@ -1,7 +1,8 @@
 package server
 
 import (
-	"github.com/pkg/errors"
+	"fmt"
+
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
@@ -76,7 +77,7 @@ func startStandAlone(ctx *Context, appCreator AppCreator) error {
 
 	svr, err := server.NewServer(addr, "socket", app)
 	if err != nil {
-		return errors.Errorf("error creating listener: %v\n", err)
+		return fmt.Errorf("error creating listener: %v", err)
 	}
 
 	svr.SetLogger(ctx.Logger.With("module", "abci-server"))

server/util.go

@@ -9,7 +9,8 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/pkg/errors"
+	"errors"
+
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 

x/auth/client/txbuilder/txbuilder.go

@@ -1,6 +1,7 @@
 package context
 
 import (
+	"fmt"
 	"strings"
 
 	crkeys "github.com/cosmos/cosmos-sdk/crypto/keys"
@@ -10,7 +11,8 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth"
 
-	"github.com/pkg/errors"
+	"errors"
+
 	"github.com/spf13/viper"
 )
 
@@ -179,7 +181,7 @@ func (bldr TxBuilder) WithAccountNumber(accnum uint64) TxBuilder {
 func (bldr TxBuilder) Build(msgs []sdk.Msg) (StdSignMsg, error) {
 	chainID := bldr.chainID
 	if chainID == "" {
-		return StdSignMsg{}, errors.Errorf("chain ID required but not specified")
+		return StdSignMsg{}, fmt.Errorf("chain ID required but not specified")
 	}
 
 	fees := bldr.fees

x/bank/client/cli/sendtx.go

@@ -1,6 +1,8 @@
 package cli
 
 import (
+	"fmt"
+
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/client/context"
 	"github.com/cosmos/cosmos-sdk/client/utils"
@@ -9,7 +11,6 @@ import (
 	authtxb "github.com/cosmos/cosmos-sdk/x/auth/client/txbuilder"
 	"github.com/cosmos/cosmos-sdk/x/bank"
 
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
@@ -53,7 +54,7 @@ func SendTxCmd(cdc *codec.Codec) *cobra.Command {
 
 			// ensure account has enough coins
 			if !account.GetCoins().IsAllGTE(coins) {
-				return errors.Errorf("Address %s doesn't have enough coins to pay for this transaction.", from)
+				return fmt.Errorf("address %s doesn't have enough coins to pay for this transaction", from)
 			}
 
 			// build and sign the transaction, then broadcast to Tendermint

x/gov/client/cli/tx.go

@@ -4,8 +4,6 @@ import (
 	"fmt"
 	"strconv"
 
-	"github.com/pkg/errors"
-
 	"github.com/cosmos/cosmos-sdk/client/context"
 	"github.com/cosmos/cosmos-sdk/client/utils"
 	"github.com/cosmos/cosmos-sdk/codec"
@@ -101,7 +99,7 @@ $ gaiacli gov submit-proposal --title="Test Proposal" --description="My awesome
 
 			// ensure account has enough coins
 			if !account.GetCoins().IsAllGTE(amount) {
-				return errors.Errorf("Address %s doesn't have enough coins to pay for this transaction.", from)
+				return fmt.Errorf("address %s doesn't have enough coins to pay for this transaction", from)
 			}
 
 			proposalType, err := gov.ProposalTypeFromString(proposal.Type)
@@ -204,7 +202,7 @@ $ gaiacli tx gov deposit 1 10stake --from mykey
 
 			// ensure account has enough coins
 			if !account.GetCoins().IsAllGTE(amount) {
-				return errors.Errorf("Address %s doesn't have enough coins to pay for this transaction.", from)
+				return fmt.Errorf("address %s doesn't have enough coins to pay for this transaction", from)
 			}
 
 			msg := gov.NewMsgDeposit(from, proposalID, amount)

x/gov/client/rest/rest.go

@@ -12,8 +12,9 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	gcutils "github.com/cosmos/cosmos-sdk/x/gov/client/utils"
 
+	"errors"
+
 	"github.com/gorilla/mux"
-	"github.com/pkg/errors"
 
 	govClientUtils "github.com/cosmos/cosmos-sdk/x/gov/client/utils"
 )

x/gov/depositsvotes.go

@@ -4,8 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 
-	"github.com/pkg/errors"
-
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
@@ -98,7 +96,7 @@ func VoteOptionFromString(str string) (VoteOption, error) {
 	case "NoWithVeto":
 		return OptionNoWithVeto, nil
 	default:
-		return VoteOption(0xff), errors.Errorf("'%s' is not a valid vote option", str)
+		return VoteOption(0xff), fmt.Errorf("'%s' is not a valid vote option", str)
 	}
 }
 

x/gov/proposals.go

@@ -6,8 +6,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/pkg/errors"
-
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
@@ -177,7 +175,7 @@ func ProposalTypeFromString(str string) (ProposalKind, error) {
 	case "SoftwareUpgrade":
 		return ProposalTypeSoftwareUpgrade, nil
 	default:
-		return ProposalKind(0xff), errors.Errorf("'%s' is not a valid proposal type", str)
+		return ProposalKind(0xff), fmt.Errorf("'%s' is not a valid proposal type", str)
 	}
 }
 
@@ -278,7 +276,7 @@ func ProposalStatusFromString(str string) (ProposalStatus, error) {
 	case "":
 		return StatusNil, nil
 	default:
-		return ProposalStatus(0xff), errors.Errorf("'%s' is not a valid proposal status", str)
+		return ProposalStatus(0xff), fmt.Errorf("'%s' is not a valid proposal status", str)
 	}
 }
 

x/staking/client/cli/utils.go

@@ -1,7 +1,7 @@
 package cli
 
 import (
-	"github.com/pkg/errors"
+	"errors"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/staking/types"
@@ -14,15 +14,15 @@ func getShares(sharesAmountStr string, delAddr sdk.AccAddress, valAddr sdk.ValAd
 	}
 
 	if !sharesAmount.GT(sdk.ZeroDec()) {
-		return sharesAmount, errors.Errorf("shares amount must be positive number (ex. 123, 1.23456789)")
+		return sharesAmount, errors.New("shares amount must be positive number (ex. 123, 1.23456789)")
 	}
 
 	return
 }
 
 func buildCommissionMsg(rateStr, maxRateStr, maxChangeRateStr string) (commission types.CommissionMsg, err error) {
 	if rateStr == "" || maxRateStr == "" || maxChangeRateStr == "" {
-		return commission, errors.Errorf("must specify all validator commission parameters")
+		return commission, errors.New("must specify all validator commission parameters")
 	}
 
 	rate, err := sdk.NewDecFromStr(rateStr)