Enable addtional linters (#34085)

enable mirror, usestdlibbars and perfsprint 
part of: https://github.com/go-gitea/gitea/issues/34083

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/cache/cache.go

@@ -4,6 +4,8 @@
 package cache
 
 import (
+	"encoding/hex"
+	"errors"
 	"fmt"
 	"strconv"
 	"time"
@@ -48,10 +50,10 @@ const (
 // returns
 func Test() (time.Duration, error) {
 	if defaultCache == nil {
-		return 0, fmt.Errorf("default cache not initialized")
+		return 0, errors.New("default cache not initialized")
 	}
 
-	testData := fmt.Sprintf("%x", make([]byte, 500))
+	testData := hex.EncodeToString(make([]byte, 500))
 
 	start := time.Now()
 
@@ -63,10 +65,10 @@ func Test() (time.Duration, error) {
 	}
 	testVal, hit := defaultCache.Get(testCacheKey)
 	if !hit {
-		return 0, fmt.Errorf("expect cache hit but got none")
+		return 0, errors.New("expect cache hit but got none")
 	}
 	if testVal != testData {
-		return 0, fmt.Errorf("expect cache to return same value as stored but got other")
+		return 0, errors.New("expect cache to return same value as stored but got other")
 	}
 
 	return time.Since(start), nil

modules/cache/cache_test.go

@@ -4,7 +4,7 @@
 package cache
 
 import (
-	"fmt"
+	"errors"
 	"testing"
 	"time"
 
@@ -57,7 +57,7 @@ func TestGetString(t *testing.T) {
 	createTestCache()
 
 	data, err := GetString("key", func() (string, error) {
-		return "", fmt.Errorf("some error")
+		return "", errors.New("some error")
 	})
 	assert.Error(t, err)
 	assert.Empty(t, data)
@@ -82,7 +82,7 @@ func TestGetString(t *testing.T) {
 	assert.Equal(t, "some data", data)
 
 	data, err = GetString("key", func() (string, error) {
-		return "", fmt.Errorf("some error")
+		return "", errors.New("some error")
 	})
 	assert.NoError(t, err)
 	assert.Equal(t, "some data", data)
@@ -93,7 +93,7 @@ func TestGetInt64(t *testing.T) {
 	createTestCache()
 
 	data, err := GetInt64("key", func() (int64, error) {
-		return 0, fmt.Errorf("some error")
+		return 0, errors.New("some error")
 	})
 	assert.Error(t, err)
 	assert.EqualValues(t, 0, data)
@@ -118,7 +118,7 @@ func TestGetInt64(t *testing.T) {
 	assert.EqualValues(t, 100, data)
 
 	data, err = GetInt64("key", func() (int64, error) {
-		return 0, fmt.Errorf("some error")
+		return 0, errors.New("some error")
 	})
 	assert.NoError(t, err)
 	assert.EqualValues(t, 100, data)