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/indexer/internal/bleve/indexer.go

@@ -5,7 +5,7 @@ package bleve
 
 import (
 	"context"
-	"fmt"
+	"errors"
 
 	"code.gitea.io/gitea/modules/indexer/internal"
 	"code.gitea.io/gitea/modules/log"
@@ -39,11 +39,11 @@ func NewIndexer(indexDir string, version int, mappingGetter func() (mapping.Inde
 // Init initializes the indexer
 func (i *Indexer) Init(_ context.Context) (bool, error) {
 	if i == nil {
-		return false, fmt.Errorf("cannot init nil indexer")
+		return false, errors.New("cannot init nil indexer")
 	}
 
 	if i.Indexer != nil {
-		return false, fmt.Errorf("indexer is already initialized")
+		return false, errors.New("indexer is already initialized")
 	}
 
 	indexer, version, err := openIndexer(i.indexDir, i.version)
@@ -83,10 +83,10 @@ func (i *Indexer) Init(_ context.Context) (bool, error) {
 // Ping checks if the indexer is available
 func (i *Indexer) Ping(_ context.Context) error {
 	if i == nil {
-		return fmt.Errorf("cannot ping nil indexer")
+		return errors.New("cannot ping nil indexer")
 	}
 	if i.Indexer == nil {
-		return fmt.Errorf("indexer is not initialized")
+		return errors.New("indexer is not initialized")
 	}
 	return nil
 }

modules/indexer/internal/elasticsearch/indexer.go

@@ -5,6 +5,7 @@ package elasticsearch
 
 import (
 	"context"
+	"errors"
 	"fmt"
 
 	"code.gitea.io/gitea/modules/indexer/internal"
@@ -36,10 +37,10 @@ func NewIndexer(url, indexName string, version int, mapping string) *Indexer {
 // Init initializes the indexer
 func (i *Indexer) Init(ctx context.Context) (bool, error) {
 	if i == nil {
-		return false, fmt.Errorf("cannot init nil indexer")
+		return false, errors.New("cannot init nil indexer")
 	}
 	if i.Client != nil {
-		return false, fmt.Errorf("indexer is already initialized")
+		return false, errors.New("indexer is already initialized")
 	}
 
 	client, err := i.initClient()
@@ -66,10 +67,10 @@ func (i *Indexer) Init(ctx context.Context) (bool, error) {
 // Ping checks if the indexer is available
 func (i *Indexer) Ping(ctx context.Context) error {
 	if i == nil {
-		return fmt.Errorf("cannot ping nil indexer")
+		return errors.New("cannot ping nil indexer")
 	}
 	if i.Client == nil {
-		return fmt.Errorf("indexer is not initialized")
+		return errors.New("indexer is not initialized")
 	}
 
 	resp, err := i.Client.ClusterHealth().Do(ctx)

modules/indexer/internal/indexer.go

@@ -5,7 +5,7 @@ package internal
 
 import (
 	"context"
-	"fmt"
+	"errors"
 )
 
 // Indexer defines an basic indexer interface
@@ -27,11 +27,11 @@ func NewDummyIndexer() Indexer {
 type dummyIndexer struct{}
 
 func (d *dummyIndexer) Init(ctx context.Context) (bool, error) {
-	return false, fmt.Errorf("indexer is not ready")
+	return false, errors.New("indexer is not ready")
 }
 
 func (d *dummyIndexer) Ping(ctx context.Context) error {
-	return fmt.Errorf("indexer is not ready")
+	return errors.New("indexer is not ready")
 }
 
 func (d *dummyIndexer) Close() {}

modules/indexer/internal/meilisearch/indexer.go

@@ -5,6 +5,7 @@ package meilisearch
 
 import (
 	"context"
+	"errors"
 	"fmt"
 
 	"github.com/meilisearch/meilisearch-go"
@@ -33,11 +34,11 @@ func NewIndexer(url, apiKey, indexName string, version int, settings *meilisearc
 // Init initializes the indexer
 func (i *Indexer) Init(_ context.Context) (bool, error) {
 	if i == nil {
-		return false, fmt.Errorf("cannot init nil indexer")
+		return false, errors.New("cannot init nil indexer")
 	}
 
 	if i.Client != nil {
-		return false, fmt.Errorf("indexer is already initialized")
+		return false, errors.New("indexer is already initialized")
 	}
 
 	i.Client = meilisearch.New(i.url, meilisearch.WithAPIKey(i.apiKey))
@@ -62,10 +63,10 @@ func (i *Indexer) Init(_ context.Context) (bool, error) {
 // Ping checks if the indexer is available
 func (i *Indexer) Ping(ctx context.Context) error {
 	if i == nil {
-		return fmt.Errorf("cannot ping nil indexer")
+		return errors.New("cannot ping nil indexer")
 	}
 	if i.Client == nil {
-		return fmt.Errorf("indexer is not initialized")
+		return errors.New("indexer is not initialized")
 	}
 	resp, err := i.Client.Health()
 	if err != nil {