style: Cancel the io/outil libraries used in the project and switch to using native methods of os and io libraries

cmd/hz/generator/custom_files.go

@@ -19,7 +19,7 @@ package generator
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"strings"
 	"text/template"
@@ -315,7 +315,7 @@ func (pkgGen *HttpPackageGenerator) genLoopService(tplInfo *Template, filePathRe
 				return err
 			}
 		case Append: // todo: append logic need to be optimized for method
-			fileContent, err := ioutil.ReadFile(filePath)
+			fileContent, err := os.ReadFile(filePath)
 			if err != nil {
 				return err
 			}
@@ -492,7 +492,7 @@ func (pkgGen *HttpPackageGenerator) genSingleCustomizedFile(tplInfo *Template, f
 				return err
 			}
 		case Append: // todo: append logic need to be optimized for single file
-			fileContent, err := ioutil.ReadFile(filePath)
+			fileContent, err := os.ReadFile(filePath)
 			if err != nil {
 				return err
 			}

cmd/hz/generator/handler.go

@@ -19,7 +19,7 @@ package generator
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"strings"
 
@@ -196,7 +196,7 @@ func (pkgGen *HttpPackageGenerator) updateHandler(handler interface{}, handlerTp
 		return nil
 	}
 
-	file, err := ioutil.ReadFile(filePath)
+	file, err := os.ReadFile(filePath)
 	if err != nil {
 		return err
 	}

cmd/hz/generator/layout.go

@@ -20,7 +20,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"reflect"
 	"strings"
@@ -63,7 +63,7 @@ func (lg *LayoutGenerator) Init() error {
 	config := layoutConfig
 	// unmarshal from user-defined config file if it exists
 	if lg.ConfigPath != "" {
-		cdata, err := ioutil.ReadFile(lg.ConfigPath)
+		cdata, err := os.ReadFile(lg.ConfigPath)
 		if err != nil {
 			return fmt.Errorf("read layout config from  %s failed, err: %v", lg.ConfigPath, err.Error())
 		}
@@ -216,7 +216,7 @@ func (lg *LayoutGenerator) GenerateByConfig(configPath string) error {
 	if err := lg.checkInited(); err != nil {
 		return err
 	}
-	buf, err := ioutil.ReadFile(configPath)
+	buf, err := os.ReadFile(configPath)
 	if err != nil {
 		return fmt.Errorf("read data file '%s' failed, err: %v", configPath, err.Error())
 	}

cmd/hz/generator/package.go

@@ -19,7 +19,7 @@ package generator
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"reflect"
 	"text/template"
@@ -84,7 +84,7 @@ func (pkgGen *HttpPackageGenerator) Init() error {
 	customConfig := TemplateConfig{}
 	// unmarshal from user-defined config file if it exists
 	if pkgGen.ConfigPath != "" {
-		cdata, err := ioutil.ReadFile(pkgGen.ConfigPath)
+		cdata, err := os.ReadFile(pkgGen.ConfigPath)
 		if err != nil {
 			return fmt.Errorf("read layout config from  %s failed, err: %v", pkgGen.ConfigPath, err.Error())
 		}

cmd/hz/generator/router.go

@@ -19,8 +19,8 @@ package generator
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"math"
+	"os"
 	"path/filepath"
 	"regexp"
 	"sort"
@@ -345,7 +345,7 @@ func (pkgGen *HttpPackageGenerator) updateRegister(pkg, rDir, pkgName string) er
 		return pkgGen.TemplateGenerator.Generate(register, registerTplName, registerPath, false)
 	}
 
-	file, err := ioutil.ReadFile(registerPath)
+	file, err := os.ReadFile(registerPath)
 	if err != nil {
 		return fmt.Errorf("read register '%s' failed, err: %v", registerPath, err.Error())
 	}
@@ -493,7 +493,7 @@ func (pkgGen *HttpPackageGenerator) updateMiddlewareReg(router interface{}, midd
 		return nil
 	})
 
-	file, err := ioutil.ReadFile(filePath)
+	file, err := os.ReadFile(filePath)
 	if err != nil {
 		return err
 	}

cmd/hz/protobuf/plugin.go

@@ -49,7 +49,7 @@ package protobuf
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path/filepath"
 	"strings"
@@ -112,7 +112,7 @@ func (plugin *Plugin) Run() int {
 		}
 	}()
 	// read protoc request
-	in, err := ioutil.ReadAll(os.Stdin)
+	in, err := io.ReadAll(os.Stdin)
 	if err != nil {
 		logs.Errorf("read request failed: %s\n", err.Error())
 		return meta.PluginError

cmd/hz/protobuf/plugin_test.go

@@ -17,7 +17,7 @@
 package protobuf
 
 import (
-	"io/ioutil"
+	"os"
 	"strings"
 	"testing"
 
@@ -27,7 +27,7 @@ import (
 )
 
 func TestPlugin_Handle(t *testing.T) {
-	in, err := ioutil.ReadFile("../testdata/request_protoc.out")
+	in, err := os.ReadFile("../testdata/request_protoc.out")
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/hz/protobuf/tag_test.go

@@ -17,7 +17,7 @@
 package protobuf
 
 import (
-	"io/ioutil"
+	"os"
 	"strings"
 	"testing"
 
@@ -104,7 +104,7 @@ func TestTagGenerate(t *testing.T) {
 		},
 	}
 
-	in, err := ioutil.ReadFile("./test_data/protobuf_tag_test.out")
+	in, err := os.ReadFile("./test_data/protobuf_tag_test.out")
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/hz/thrift/plugin.go

@@ -19,7 +19,7 @@ package thrift
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path/filepath"
 	"strings"
@@ -221,7 +221,7 @@ func (plugin *Plugin) recvVerboseLogger() string {
 }
 
 func (plugin *Plugin) handleRequest() error {
-	data, err := ioutil.ReadAll(os.Stdin)
+	data, err := io.ReadAll(os.Stdin)
 	if err != nil {
 		return fmt.Errorf("read request failed: %s", err.Error())
 	}

cmd/hz/thrift/plugin_test.go

@@ -17,7 +17,7 @@
 package thrift
 
 import (
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/cloudwego/hertz/cmd/hz/generator"
@@ -26,7 +26,7 @@ import (
 )
 
 func TestRun(t *testing.T) {
-	data, err := ioutil.ReadFile("../testdata/request_thrift.out")
+	data, err := os.ReadFile("../testdata/request_thrift.out")
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/hz/thrift/tag_test.go

@@ -17,7 +17,7 @@
 package thrift
 
 import (
-	"io/ioutil"
+	"os"
 	"strings"
 	"testing"
 
@@ -26,7 +26,7 @@ import (
 )
 
 func TestInsertTag(t *testing.T) {
-	data, err := ioutil.ReadFile("./test_data/thrift_tag_test.out")
+	data, err := os.ReadFile("./test_data/thrift_tag_test.out")
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/hz/util/env.go

@@ -20,7 +20,6 @@ import (
 	"bytes"
 	"fmt"
 	"go/build"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -85,7 +84,7 @@ var goModReg = regexp.MustCompile(`^\s*module\s+(\S+)\s*`)
 func SearchGoMod(cwd string, recurse bool) (moduleName, path string, found bool) {
 	for {
 		path = filepath.Join(cwd, "go.mod")
-		data, err := ioutil.ReadFile(path)
+		data, err := os.ReadFile(path)
 		if err == nil {
 			for _, line := range strings.Split(string(data), "\n") {
 				m := goModReg.FindStringSubmatch(line)

internal/bytesconv/bytesconv_table_gen.go

@@ -47,8 +47,8 @@ package main
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"log"
+	"os"
 )
 
 const (
@@ -251,7 +251,7 @@ func main() {
 	fmt.Fprintf(w, "\tValidHeaderFieldNameTable = %q\n", validHeaderFieldNameTable)
 	fmt.Fprintf(w, ")\n")
 
-	if err := ioutil.WriteFile("bytesconv_table.go", w.Bytes(), 0o660); err != nil {
+	if err := os.WriteFile("bytesconv_table.go", w.Bytes(), 0o660); err != nil {
 		log.Fatal(err)
 	}
 }

pkg/app/client/client_test.go

@@ -48,7 +48,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -1625,7 +1624,7 @@ func TestClientReadResponseBodyStream(t *testing.T) {
 	if string(p) != part1 {
 		t.Errorf("read len=%v, read content=%v; want len=%v, want content=%v", r, string(p), len(part1), part1)
 	}
-	left, _ := ioutil.ReadAll(bodyStream)
+	left, _ := io.ReadAll(bodyStream)
 	if string(left) != part2 {
 		t.Errorf("left len=%v, left content=%v; want len=%v, want content=%v", len(left), string(left), len(part2), part2)
 	}
@@ -2067,13 +2066,13 @@ func TestClientReadResponseBodyStreamWithDoubleRequest(t *testing.T) {
 	if bodyStream1 == nil {
 		t.Errorf("bodystream1 is nil")
 	}
-	data, _ := ioutil.ReadAll(bodyStream1)
+	data, _ := io.ReadAll(bodyStream1)
 	if string(data) != part1+part2 {
 		t.Errorf("read len=%v, read content=%v; want len=%v, want content=%v", len(data), data, len(part1+part2), part1+part2)
 	}
 
 	// read left bodystream
-	left, _ := ioutil.ReadAll(bodyStream)
+	left, _ := io.ReadAll(bodyStream)
 	if string(left) != part2 {
 		t.Errorf("left len=%v, left content=%v; want len=%v, want content=%v", len(left), string(left), len(part2), part2)
 	}

pkg/app/context_test.go

@@ -23,7 +23,7 @@ import (
 	"errors"
 	"fmt"
 	"html/template"
-	"io/ioutil"
+	"io"
 	"net"
 	"os"
 	"reflect"
@@ -462,7 +462,7 @@ tailfoobar`
 	if err := req.Read(&ctx.Request, mr); err != nil {
 		t.Fatalf("unexpected error: %s", err)
 	}
-	tail, err := ioutil.ReadAll(mr)
+	tail, err := io.ReadAll(mr)
 	if err != nil {
 		t.Fatalf("unexpected error: %s", err)
 	}
@@ -988,7 +988,7 @@ func TestRequestBodyStream(t *testing.T) {
 	s := "testRequestBodyStream"
 	mr := bytes.NewBufferString(s)
 	c.Request.SetBodyStream(mr, -1)
-	data, err := ioutil.ReadAll(c.RequestBodyStream())
+	data, err := io.ReadAll(c.RequestBodyStream())
 	assert.Nil(t, err)
 	assert.DeepEqual(t, "testRequestBodyStream", string(data))
 }

pkg/app/fs.go

@@ -48,7 +48,6 @@ import (
 	"fmt"
 	"html"
 	"io"
-	"io/ioutil"
 	"mime"
 	"net/http"
 	"os"
@@ -1075,7 +1074,7 @@ func readFileHeader(f *os.File, compressed bool) ([]byte, error) {
 		R: r,
 		N: 512,
 	}
-	data, err := ioutil.ReadAll(lr)
+	data, err := io.ReadAll(lr)
 	if _, err := f.Seek(0, 0); err != nil {
 		return nil, err
 	}

pkg/app/fs_test.go

@@ -46,7 +46,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math/rand"
 	"os"
 	"path"
@@ -186,13 +185,13 @@ func TestServeFileSmallNoReadFrom(t *testing.T) {
 
 	teststr := "hello, world!"
 
-	tempdir, err := ioutil.TempDir("", "httpexpect")
+	tempdir, err := os.MkdirTemp("", "httpexpect")
 	if err != nil {
 		t.Fatal(err)
 	}
 	defer os.RemoveAll(tempdir)
 
-	if err := ioutil.WriteFile(
+	if err := os.WriteFile(
 		path.Join(tempdir, "hello"), []byte(teststr), 0o666); err != nil {
 		t.Fatal(err)
 	}
@@ -426,7 +425,7 @@ func getFileContents(path string) ([]byte, error) {
 		return nil, err
 	}
 	defer f.Close()
-	return ioutil.ReadAll(f)
+	return io.ReadAll(f)
 }
 
 func TestParseByteRangeSuccess(t *testing.T) {

pkg/app/middlewares/server/recovery/recovery.go

@@ -20,7 +20,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"runtime"
 
 	"github.com/cloudwego/hertz/pkg/app"
@@ -66,7 +66,7 @@ func stack(skip int) []byte {
 		// Print this much at least.  If we can't find the source, it won't show.
 		fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc)
 		if file != lastFile {
-			data, err := ioutil.ReadFile(file)
+			data, err := os.ReadFile(file)
 			if err != nil {
 				continue
 			}