Update golangci-lint to v1.32

Author: johejo

.github/workflows/go.yml

@@ -45,6 +45,6 @@ jobs:
           fi
       - name: Install golangci
         run: |
-          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.31.0
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.32.2
       - name: Test
         run: make

.golangci.yml

@@ -19,3 +19,6 @@ linters:
     - exhaustive
     - nestif
     - nlreturn
+    - exhaustivestruct
+    - wrapcheck
+    - errorlint

.travis.yml

@@ -17,4 +17,4 @@ go_import_path: github.com/go-redis/redis
 
 before_install:
   - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s --
-    -b $(go env GOPATH)/bin v1.31.0
+    -b $(go env GOPATH)/bin v1.32.2

internal/proto/scan.go

@@ -131,7 +131,7 @@ func ScanSlice(data []string, slice interface{}) error {
 	for i, s := range data {
 		elem := next()
 		if err := Scan([]byte(s), elem.Addr().Interface()); err != nil {
-			err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %s", i, s, err)
+			err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %w", i, s, err)
 			return err
 		}
 	}

internal/util.go

@@ -50,16 +50,6 @@ func isLower(s string) bool {
 	return true
 }
 
-func Unwrap(err error) error {
-	u, ok := err.(interface {
-		Unwrap() error
-	})
-	if !ok {
-		return nil
-	}
-	return u.Unwrap()
-}
-
 //------------------------------------------------------------------------------
 
 func WithSpan(ctx context.Context, name string, fn func(context.Context, trace.Span) error) error {

options.go

@@ -271,7 +271,7 @@ func setupUnixConn(u *url.URL) (*Options, error) {
 
 	db, err := strconv.Atoi(dbStr)
 	if err != nil {
-		return nil, fmt.Errorf("redis: invalid database number: %s", err)
+		return nil, fmt.Errorf("redis: invalid database number: %w", err)
 	}
 	o.DB = db
 

redis.go

@@ -2,6 +2,7 @@ package redis
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 
@@ -230,7 +231,7 @@ func (c *baseClient) _getConn(ctx context.Context) (*pool.Conn, error) {
 	})
 	if err != nil {
 		c.connPool.Remove(ctx, cn, err)
-		if err := internal.Unwrap(err); err != nil {
+		if err := errors.Unwrap(err); err != nil {
 			return nil, err
 		}
 		return nil, err