Replace github.com/pkg/errors with stdlib errors

CHANGELOG.md

@@ -39,6 +39,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Dependencies
 
 * [\#404](https://github.com/cosmos/ibc-go/pull/404) Bump Go version to 1.17
+* (core) [\#709](https://github.com/cosmos/ibc-go/pull/709) Replace github.com/pkg/errors with stdlib errors
 
 ### API Breaking
 

go.mod

@@ -12,7 +12,6 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/gorilla/mux v1.8.0
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0
-	github.com/pkg/errors v0.9.1
 	github.com/rakyll/statik v0.1.7
 	github.com/regen-network/cosmos-proto v0.3.1
 	github.com/spf13/cast v1.4.1
@@ -91,6 +90,7 @@ require (
 	github.com/opencontainers/runc v1.0.3 // indirect
 	github.com/pelletier/go-toml v1.9.4 // indirect
 	github.com/petermattis/goid v0.0.0-20180202154549-b0b1615b78e5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.11.0 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect

modules/core/02-client/client/cli/tx.go

@@ -14,7 +14,6 @@ import (
 	govcli "github.com/cosmos/cosmos-sdk/x/gov/client/cli"
 	govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
 	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 
 	"github.com/cosmos/ibc-go/v3/modules/core/02-client/types"
@@ -46,11 +45,11 @@ func NewCreateClientCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(clientContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for client state were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for client state were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &clientState); err != nil {
-					return errors.Wrap(err, "error unmarshalling client state file")
+					return fmt.Errorf("error unmarshalling client state file: %w", err)
 				}
 			}
 
@@ -62,11 +61,11 @@ func NewCreateClientCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(consensusContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for consensus state were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for consensus state were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &consensusState); err != nil {
-					return errors.Wrap(err, "error unmarshalling consensus state file")
+					return fmt.Errorf("error unmarshalling consensus state file: %w", err)
 				}
 			}
 
@@ -108,11 +107,11 @@ func NewUpdateClientCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(headerContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for header were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for header were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &header); err != nil {
-					return errors.Wrap(err, "error unmarshalling header file")
+					return fmt.Errorf("error unmarshalling header file: %w", err)
 				}
 			}
 
@@ -149,11 +148,11 @@ func NewSubmitMisbehaviourCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(misbehaviourContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for misbehaviour were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for misbehaviour were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, misbehaviour); err != nil {
-					return errors.Wrap(err, "error unmarshalling misbehaviour file")
+					return fmt.Errorf("error unmarshalling misbehaviour file: %w", err)
 				}
 			}
 
@@ -193,11 +192,11 @@ func NewUpgradeClientCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(clientContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for client state were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for client state were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &clientState); err != nil {
-					return errors.Wrap(err, "error unmarshalling client state file")
+					return fmt.Errorf("error unmarshalling client state file: %w", err)
 				}
 			}
 
@@ -209,11 +208,11 @@ func NewUpgradeClientCmd() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(consensusContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for consensus state were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for consensus state were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &consensusState); err != nil {
-					return errors.Wrap(err, "error unmarshalling consensus state file")
+					return fmt.Errorf("error unmarshalling consensus state file: %w", err)
 				}
 			}
 
@@ -350,11 +349,11 @@ func NewCmdSubmitUpgradeProposal() *cobra.Command {
 				// check for file path if JSON input is not provided
 				contents, err := ioutil.ReadFile(clientContentOrFileName)
 				if err != nil {
-					return errors.Wrap(err, "neither JSON input nor path to .json file for client state were provided")
+					return fmt.Errorf("neither JSON input nor path to .json file for client state were provided: %w", err)
 				}
 
 				if err := cdc.UnmarshalInterfaceJSON(contents, &clientState); err != nil {
-					return errors.Wrap(err, "error unmarshalling client state file")
+					return fmt.Errorf("error unmarshalling client state file: %w", err)
 				}
 			}
 

modules/core/03-connection/client/utils/utils.go

@@ -2,13 +2,13 @@ package utils
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io/ioutil"
 
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/pkg/errors"
 
 	clientutils "github.com/cosmos/ibc-go/v3/modules/core/02-client/client/utils"
 	clienttypes "github.com/cosmos/ibc-go/v3/modules/core/02-client/types"
@@ -176,7 +176,7 @@ func ParseClientState(cdc *codec.LegacyAmino, arg string) (exported.ClientState,
 			return nil, errors.New("either JSON input nor path to .json file were provided")
 		}
 		if err := cdc.UnmarshalJSON(contents, &clientState); err != nil {
-			return nil, errors.Wrap(err, "error unmarshalling client state")
+			return nil, fmt.Errorf("error unmarshalling client state: %w", err)
 		}
 	}
 	return clientState, nil
@@ -193,7 +193,7 @@ func ParsePrefix(cdc *codec.LegacyAmino, arg string) (commitmenttypes.MerklePref
 			return commitmenttypes.MerklePrefix{}, errors.New("neither JSON input nor path to .json file were provided")
 		}
 		if err := cdc.UnmarshalJSON(contents, &prefix); err != nil {
-			return commitmenttypes.MerklePrefix{}, errors.Wrap(err, "error unmarshalling commitment prefix")
+			return commitmenttypes.MerklePrefix{}, fmt.Errorf("error unmarshalling commitment prefix: %w", err)
 		}
 	}
 	return prefix, nil