chore: remove refs to deprecated io/ioutil (#1504)

Signed-off-by: guoguangwu <[email protected]>
Co-authored-by: chenk <[email protected]>

check/controls_test.go

@@ -19,7 +19,6 @@ import (
 	"encoding/json"
 	"encoding/xml"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -53,7 +52,7 @@ func TestYamlFiles(t *testing.T) {
 		}
 		if !info.IsDir() {
 			t.Logf("reading file: %s", path)
-			in, err := ioutil.ReadFile(path)
+			in, err := os.ReadFile(path)
 			if err != nil {
 				t.Fatalf("error opening file %s: %v", path, err)
 			}

check/test_test.go

@@ -16,7 +16,6 @@ package check
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -29,7 +28,7 @@ var (
 
 func init() {
 	var err error
-	in, err = ioutil.ReadFile("data")
+	in, err = os.ReadFile("data")
 	if err != nil {
 		panic("Failed reading test data: " + err.Error())
 	}

cmd/common.go

@@ -18,7 +18,6 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sort"
@@ -71,7 +70,7 @@ func runChecks(nodetype check.NodeType, testYamlFile, detectedVersion string) {
 		os.Exit(1)
 	}
 
-	in, err := ioutil.ReadFile(testYamlFile)
+	in, err := os.ReadFile(testYamlFile)
 	if err != nil {
 		exitWithError(fmt.Errorf("error opening %s test file: %v", testYamlFile, err))
 	}

cmd/common_test.go

@@ -18,7 +18,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path"
 	"path/filepath"
@@ -681,7 +681,7 @@ func TestPrintSummary(t *testing.T) {
 	os.Stdout = w
 	printSummary(resultTotals, "totals")
 	w.Close()
-	out, _ := ioutil.ReadAll(r)
+	out, _ := io.ReadAll(r)
 	os.Stdout = rescueStdout
 
 	assert.Contains(t, string(out), "49 checks PASS\n12 checks FAIL\n14 checks WARN\n0 checks INFO\n\n")
@@ -700,7 +700,7 @@ func TestPrettyPrintNoSummary(t *testing.T) {
 	noSummary = true
 	prettyPrint(controlsCollection[0], resultTotals)
 	w.Close()
-	out, _ := ioutil.ReadAll(r)
+	out, _ := io.ReadAll(r)
 	os.Stdout = rescueStdout
 
 	assert.NotContains(t, string(out), "49 checks PASS")
@@ -719,7 +719,7 @@ func TestPrettyPrintSummary(t *testing.T) {
 	noSummary = false
 	prettyPrint(controlsCollection[0], resultTotals)
 	w.Close()
-	out, _ := ioutil.ReadAll(r)
+	out, _ := io.ReadAll(r)
 	os.Stdout = rescueStdout
 
 	assert.Contains(t, string(out), "49 checks PASS")
@@ -737,7 +737,7 @@ func TestWriteStdoutOutputNoTotal(t *testing.T) {
 	noTotals = true
 	writeStdoutOutput(controlsCollection)
 	w.Close()
-	out, _ := ioutil.ReadAll(r)
+	out, _ := io.ReadAll(r)
 	os.Stdout = rescueStdout
 
 	assert.NotContains(t, string(out), "49 checks PASS")
@@ -757,7 +757,7 @@ func TestWriteStdoutOutputTotal(t *testing.T) {
 	noTotals = false
 	writeStdoutOutput(controlsCollection)
 	w.Close()
-	out, _ := ioutil.ReadAll(r)
+	out, _ := io.ReadAll(r)
 
 	os.Stdout = rescueStdout
 
@@ -767,7 +767,7 @@ func TestWriteStdoutOutputTotal(t *testing.T) {
 func parseControlsJsonFile(filepath string) ([]*check.Controls, error) {
 	var result []*check.Controls
 
-	d, err := ioutil.ReadFile(filepath)
+	d, err := os.ReadFile(filepath)
 	if err != nil {
 		return nil, err
 	}
@@ -782,7 +782,7 @@ func parseControlsJsonFile(filepath string) ([]*check.Controls, error) {
 func parseResultJsonFile(filepath string) (JsonOutputFormat, error) {
 	var result JsonOutputFormat
 
-	d, err := ioutil.ReadFile(filepath)
+	d, err := os.ReadFile(filepath)
 	if err != nil {
 		return result, err
 	}
@@ -797,7 +797,7 @@ func parseResultJsonFile(filepath string) (JsonOutputFormat, error) {
 func parseResultNoTotalsJsonFile(filepath string) ([]*check.Controls, error) {
 	var result []*check.Controls
 
-	d, err := ioutil.ReadFile(filepath)
+	d, err := os.ReadFile(filepath)
 	if err != nil {
 		return nil, err
 	}
@@ -822,7 +822,7 @@ type restoreFn func()
 
 func fakeExecutableInPath(execFile, execCode string) (restoreFn, error) {
 	pathenv := os.Getenv("PATH")
-	tmp, err := ioutil.TempDir("", "TestfakeExecutableInPath")
+	tmp, err := os.MkdirTemp("", "TestfakeExecutableInPath")
 	if err != nil {
 		return nil, err
 	}
@@ -833,7 +833,7 @@ func fakeExecutableInPath(execFile, execCode string) (restoreFn, error) {
 	}
 
 	if len(execCode) > 0 {
-		ioutil.WriteFile(filepath.Join(tmp, execFile), []byte(execCode), 0700)
+		os.WriteFile(filepath.Join(tmp, execFile), []byte(execCode), 0700)
 	} else {
 		f, err := os.OpenFile(execFile, os.O_CREATE|os.O_EXCL, 0700)
 		if err != nil {

cmd/kubernetes_version.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"encoding/pem"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"os"
 	"strings"
@@ -45,7 +45,7 @@ func getKubeVersionFromRESTAPI() (*KubeVersion, error) {
 		return nil, err
 	}
 
-	tb, err := ioutil.ReadFile(tokenfile)
+	tb, err := os.ReadFile(tokenfile)
 	if err != nil {
 		glog.V(2).Infof("Failed reading token file Error: %s", err)
 		return nil, err
@@ -143,11 +143,11 @@ func getWebData(srvURL, token string, cacert *tls.Certificate) ([]byte, error) {
 		return nil, err
 	}
 
-	return ioutil.ReadAll(resp.Body)
+	return io.ReadAll(resp.Body)
 }
 
 func loadCertificate(certFile string) (*tls.Certificate, error) {
-	cacert, err := ioutil.ReadFile(certFile)
+	cacert, err := os.ReadFile(certFile)
 	if err != nil {
 		return nil, err
 	}

cmd/kubernetes_version_test.go

@@ -3,7 +3,6 @@ package cmd
 import (
 	"crypto/tls"
 	"fmt"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -12,13 +11,13 @@ import (
 )
 
 func TestLoadCertificate(t *testing.T) {
-	tmp, err := ioutil.TempDir("", "TestFakeLoadCertificate")
+	tmp, err := os.MkdirTemp("", "TestFakeLoadCertificate")
 	if err != nil {
 		t.Fatalf("unable to create temp directory: %v", err)
 	}
 	defer os.RemoveAll(tmp)
 
-	goodCertFile, _ := ioutil.TempFile(tmp, "good-cert-*")
+	goodCertFile, _ := os.CreateTemp(tmp, "good-cert-*")
 	_, _ = goodCertFile.Write([]byte(`-----BEGIN CERTIFICATE-----
 MIICyDCCAbCgAwIBAgIBADANBgkqhkiG9w0BAQsFADAVMRMwEQYDVQQDEwprdWJl
 cm5ldGVzMB4XDTE5MTEwODAxNDAwMFoXDTI5MTEwNTAxNDAwMFowFTETMBEGA1UE
@@ -36,7 +35,7 @@ jLv3UYZRHMpuNS8BJU74BuVzVPHd55RAl+bV8yemdZJ7pPzMvGbZ7zRXWODTDlge
 CQb9lY+jYErisH8Sq7uABFPvi7RaTh8SS7V7OxqHZvmttNTdZs4TIkk45JK7Y+Xq
 FAjB57z2NcIgJuVpQnGRYtr/JcH2Qdsq8bLtXaojUIWOOqoTDRLYozdMOOQ=
 -----END CERTIFICATE-----`))
-	badCertFile, _ := ioutil.TempFile(tmp, "bad-cert-*")
+	badCertFile, _ := os.CreateTemp(tmp, "bad-cert-*")
 
 	cases := []struct {
 		file string

cmd/run_test.go

@@ -1,7 +1,6 @@
 package cmd
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -45,7 +44,7 @@ func TestGetTestYamlFiles(t *testing.T) {
 
 	// Set up temp config directory
 	var err error
-	cfgDir, err = ioutil.TempDir("", "kube-bench-test")
+	cfgDir, err = os.MkdirTemp("", "kube-bench-test")
 	if err != nil {
 		t.Fatalf("Failed to create temp directory")
 	}
@@ -59,7 +58,7 @@ func TestGetTestYamlFiles(t *testing.T) {
 
 	// We never expect config.yaml to be returned
 	for _, filename := range []string{"one.yaml", "two.yaml", "three.yaml", "config.yaml"} {
-		err = ioutil.WriteFile(filepath.Join(d, filename), []byte("hello world"), 0666)
+		err = os.WriteFile(filepath.Join(d, filename), []byte("hello world"), 0666)
 		if err != nil {
 			t.Fatalf("error writing temp file %s: %v", filename, err)
 		}

cmd/util_test.go

@@ -16,7 +16,6 @@ package cmd
 
 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -399,7 +398,7 @@ func TestGetServiceFiles(t *testing.T) {
 
 func TestGetDatadirFiles(t *testing.T) {
 	var err error
-	datadir, err := ioutil.TempDir("", "kube-bench-test-etcd-data-dir")
+	datadir, err := os.MkdirTemp("", "kube-bench-test-etcd-data-dir")
 	if err != nil {
 		t.Fatalf("Failed to create temp directory")
 	}
@@ -474,7 +473,7 @@ func TestMakeSubsitutions(t *testing.T) {
 
 func TestGetConfigFilePath(t *testing.T) {
 	var err error
-	cfgDir, err = ioutil.TempDir("", "kube-bench-test")
+	cfgDir, err = os.MkdirTemp("", "kube-bench-test")
 	if err != nil {
 		t.Fatalf("Failed to create temp directory")
 	}
@@ -484,7 +483,7 @@ func TestGetConfigFilePath(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Failed to create temp dir")
 	}
-	err = ioutil.WriteFile(filepath.Join(d, "master.yaml"), []byte("hello world"), 0666)
+	err = os.WriteFile(filepath.Join(d, "master.yaml"), []byte("hello world"), 0666)
 	if err != nil {
 		t.Logf("Failed to create temp file")
 	}
@@ -545,7 +544,7 @@ func TestDecrementVersion(t *testing.T) {
 }
 
 func TestGetYamlFilesFromDir(t *testing.T) {
-	cfgDir, err := ioutil.TempDir("", "kube-bench-test")
+	cfgDir, err := os.MkdirTemp("", "kube-bench-test")
 	if err != nil {
 		t.Fatalf("Failed to create temp directory")
 	}
@@ -557,11 +556,11 @@ func TestGetYamlFilesFromDir(t *testing.T) {
 		t.Fatalf("Failed to create temp dir")
 	}
 
-	err = ioutil.WriteFile(filepath.Join(d, "something.yaml"), []byte("hello world"), 0666)
+	err = os.WriteFile(filepath.Join(d, "something.yaml"), []byte("hello world"), 0666)
 	if err != nil {
 		t.Fatalf("error writing file %v", err)
 	}
-	err = ioutil.WriteFile(filepath.Join(d, "config.yaml"), []byte("hello world"), 0666)
+	err = os.WriteFile(filepath.Join(d, "config.yaml"), []byte("hello world"), 0666)
 	if err != nil {
 		t.Fatalf("error writing file %v", err)
 	}