Bump Go to 1.19 (#6586)

* Set Go version in go.mod

go mod edit -go=1.19

* Fix formatting issues reported by gofmt

* Fix SA1019 check (usage of deprecated "io/ioutil"), reported by golangci-lint

SA1019: "io/ioutil" has been deprecated since Go 1.16:
As of Go 1.16, the same functionality is now provided by package io or package os,
and those implementations should be preferred in new code.
See the specific function documentation for details. (staticcheck)

* Use Go 1.19 in our Dockerfiles

* Use Go 1.19 in the rpm-prepare.sh script

* Update the tag for the IBM Cloud CI image

.github/workflows/build-push-ibm-image.yaml

@@ -26,7 +26,7 @@ jobs:
       uses: redhat-actions/buildah-build@v2
       with:
         image: ibmcloudtest-image
-        tags: v1.18-1
+        tags: v1.19-1
         context: ./.ibm/images
         containerfiles: |
           ./.ibm/images/Dockerfile

.ibm/images/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.18
+FROM golang:1.19
 
 RUN curl -fsSL https://clis.cloud.ibm.com/install/linux | sh && \
     curl -sLO https://github.com/cli/cli/releases/download/v2.1.0/gh_2.1.0_linux_amd64.deb && \

Dockerfile.rhel

@@ -1,7 +1,7 @@
 # This Dockerfile builds an image containing the Linux, Mac and Windows version of odo
 # layered on top of the ubi7/ubi image.
 
-FROM registry.svc.ci.openshift.org/openshift/release:golang-1.18 AS builder
+FROM registry.svc.ci.openshift.org/openshift/release:golang-1.19 AS builder
 
 COPY . /go/src/github.com/redhat-developer/odo
 WORKDIR /go/src/github.com/redhat-developer/odo

go.mod

@@ -1,6 +1,6 @@
 module github.com/redhat-developer/odo
 
-go 1.18
+go 1.19
 
 require (
 	github.com/ActiveState/termtest v0.7.1

openshift-ci/build-root/Dockerfile

@@ -1,5 +1,5 @@
 # Dockerfile to bootstrap build and test in openshift-ci
 
-FROM registry.ci.openshift.org/openshift/release:golang-1.18
+FROM registry.ci.openshift.org/openshift/release:golang-1.19
 
 RUN yum -y install make wget gcc git httpd-tools

pkg/preference/implem_test.go

@@ -3,7 +3,6 @@ package preference
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strconv"
 	"testing"
@@ -19,7 +18,7 @@ import (
 
 func TestNew(t *testing.T) {
 
-	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	tempConfigFile, err := os.CreateTemp("", "odoconfig")
 	if err != nil {
 		t.Fatal(err)
 	}

pkg/registry/registry.go

@@ -2,7 +2,6 @@ package registry
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"path"
 	"sort"
@@ -262,7 +261,7 @@ func createRegistryDevfiles(registry api.Registry, devfileIndex []indexSchema.Sc
 func (o RegistryClient) retrieveDevfileDataFromRegistry(ctx context.Context, registryName string, devfileName string) (api.DevfileData, error) {
 
 	// Create random temporary file
-	tmpFile, err := ioutil.TempDir("", "odo")
+	tmpFile, err := os.MkdirTemp("", "odo")
 	if err != nil {
 		return api.DevfileData{}, err
 	}

pkg/registry/registry_test.go

@@ -2,7 +2,6 @@ package registry
 
 import (
 	"context"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -20,7 +19,7 @@ import (
 )
 
 func TestGetDevfileRegistries(t *testing.T) {
-	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	tempConfigFile, err := os.CreateTemp("", "odoconfig")
 	if err != nil {
 		t.Fatal("Fail to create temporary config file")
 	}

pkg/registry/starter_project.go

@@ -3,7 +3,6 @@ package registry
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -143,7 +142,7 @@ func downloadGitProject(starterProject *devfilev1.StarterProject, starterToken,
 	originalPath := ""
 	if starterProject.SubDir != "" {
 		originalPath = path
-		path, err = ioutil.TempDir("", "")
+		path, err = os.MkdirTemp("", "")
 		if err != nil {
 			return err
 		}

pkg/registry/utils_test.go

@@ -2,7 +2,7 @@ package registry
 
 import (
 	"context"
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
@@ -13,7 +13,7 @@ import (
 )
 
 func TestIsSecure(t *testing.T) {
-	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	tempConfigFile, err := os.CreateTemp("", "odoconfig")
 	if err != nil {
 		t.Fatal(err)
 	}

pkg/segment/integrations_test.go

@@ -2,7 +2,6 @@ package segment
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -15,7 +14,7 @@ import (
 )
 
 func TestGetRegistryOptions(t *testing.T) {
-	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	tempConfigFile, err := os.CreateTemp("", "odoconfig")
 	if err != nil {
 		t.Fatal(err)
 	}

pkg/segment/segment.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"os"
 	"os/user"
@@ -205,7 +204,7 @@ func getUserIdentity(telemetryFilePath string) (string, error) {
 
 	// Get-or-Create the anonymousID file that contains a UUID
 	if _, err := os.Stat(telemetryFilePath); !os.IsNotExist(err) {
-		id, err = ioutil.ReadFile(telemetryFilePath)
+		id, err = os.ReadFile(telemetryFilePath)
 		if err != nil {
 			return "", err
 		}
@@ -214,7 +213,7 @@ func getUserIdentity(telemetryFilePath string) (string, error) {
 	// check if the id is a valid uuid, if not, nil is returned
 	if uuid.Parse(strings.TrimSpace(string(id))) == nil {
 		id = []byte(uuid.NewRandom().String())
-		if err := ioutil.WriteFile(telemetryFilePath, id, 0600); err != nil {
+		if err := os.WriteFile(telemetryFilePath, id, 0600); err != nil {
 			return "", err
 		}
 	}

pkg/segment/segment_test.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -53,7 +53,7 @@ func mockServer() (chan []byte, *httptest.Server) {
 
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		defer r.Body.Close()
-		bin, err := ioutil.ReadAll(r.Body)
+		bin, err := io.ReadAll(r.Body)
 		if err != nil {
 			log.Error(err)
 			return

pkg/sync/sync_test.go

@@ -2,8 +2,7 @@ package sync
 
 import (
 	"errors"
-	io "io"
-	"io/ioutil"
+	"io"
 	"os"
 	"path"
 	"path/filepath"
@@ -362,7 +361,7 @@ func TestUpdateIndexWithWatchChanges(t *testing.T) {
 			for _, fileToCreate := range tt.initialFilesToCreate {
 				filePath := filepath.Join(directory, fileToCreate)
 
-				if err := ioutil.WriteFile(filePath, []byte("non-empty-string"), 0644); err != nil {
+				if err := os.WriteFile(filePath, []byte("non-empty-string"), 0644); err != nil {
 					t.Fatalf("TestUpdateIndexWithWatchChangesLocal error: unable to write to index file path: %v", err)
 				}
 
@@ -397,7 +396,7 @@ func TestUpdateIndexWithWatchChanges(t *testing.T) {
 				addedFilePath := filepath.Join(directory, addedFile)
 				syncParams.WatchFiles = append(syncParams.WatchFiles, addedFilePath)
 
-				if err := ioutil.WriteFile(addedFilePath, []byte("non-empty-string"), 0644); err != nil {
+				if err := os.WriteFile(addedFilePath, []byte("non-empty-string"), 0644); err != nil {
 					t.Fatalf("TestUpdateIndexWithWatchChangesLocal error: unable to write to index file path: %v", err)
 				}
 			}

pkg/testingutil/filesystem/default_fs.go

@@ -22,13 +22,13 @@ limitations under the License.
 package filesystem
 
 import (
-	"io/ioutil"
+	"io/fs"
 	"os"
 	"path/filepath"
 	"time"
 )
 
-// DefaultFs implements Filesystem using same-named functions from "os" and "io/ioutil"
+// DefaultFs implements Filesystem using same-named functions from "os" and "io"
 type DefaultFs struct{}
 
 var _ Filesystem = DefaultFs{}
@@ -99,22 +99,22 @@ func (DefaultFs) Getwd() (dir string, err error) {
 
 // ReadFile via ioutil.ReadFile
 func (DefaultFs) ReadFile(filename string) ([]byte, error) {
-	return ioutil.ReadFile(filename)
+	return os.ReadFile(filename)
 }
 
 // WriteFile via ioutil.WriteFile
 func (DefaultFs) WriteFile(filename string, data []byte, perm os.FileMode) error {
-	return ioutil.WriteFile(filename, data, perm)
+	return os.WriteFile(filename, data, perm)
 }
 
 // TempDir via ioutil.TempDir
 func (DefaultFs) TempDir(dir, prefix string) (string, error) {
-	return ioutil.TempDir(dir, prefix)
+	return os.MkdirTemp(dir, prefix)
 }
 
 // TempFile via ioutil.TempFile
 func (DefaultFs) TempFile(dir, prefix string) (File, error) {
-	file, err := ioutil.TempFile(dir, prefix)
+	file, err := os.CreateTemp(dir, prefix)
 	if err != nil {
 		return nil, err
 	}
@@ -123,7 +123,20 @@ func (DefaultFs) TempFile(dir, prefix string) (File, error) {
 
 // ReadDir via ioutil.ReadDir
 func (DefaultFs) ReadDir(dirname string) ([]os.FileInfo, error) {
-	return ioutil.ReadDir(dirname)
+	entries, err := os.ReadDir(dirname)
+	if err != nil {
+		return nil, err
+	}
+	infos := make([]fs.FileInfo, 0, len(entries))
+	var info os.FileInfo
+	for _, entry := range entries {
+		info, err = entry.Info()
+		if err != nil {
+			return nil, err
+		}
+		infos = append(infos, info)
+	}
+	return infos, nil
 }
 
 // Walk via filepath.Walk

pkg/util/config_util.go

@@ -2,14 +2,14 @@ package util
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"reflect"
 	"strings"
 
-	"github.com/redhat-developer/odo/pkg/testingutil/filesystem"
 	"gopkg.in/yaml.v2"
+
+	"github.com/redhat-developer/odo/pkg/testingutil/filesystem"
 )
 
 // CreateIfNotExists creates the directory and the file if it doesn't exist
@@ -59,7 +59,7 @@ func WriteToYAMLFile(c interface{}, filename string) error {
 	if err = CreateIfNotExists(filename); err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(filename, data, 0600)
+	err = os.WriteFile(filename, data, 0600)
 	if err != nil {
 		return fmt.Errorf("unable to write config to file %v: %w", c, err)
 	}

pkg/util/file_indexer.go

@@ -3,7 +3,6 @@ package util
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -55,7 +54,7 @@ func ReadFileIndex(filePath string) (*FileIndex, error) {
 		return NewFileIndex(), nil
 	}
 
-	byteValue, err := ioutil.ReadFile(filePath)
+	byteValue, err := os.ReadFile(filePath)
 	if err != nil {
 		return nil, err
 	}
@@ -197,7 +196,7 @@ func write(filePath string, fi *FileIndex) error {
 	}
 	// While 0666 is the mask used when a file is created using os.Create,
 	// gosec objects, so use 0600 instead
-	return ioutil.WriteFile(filePath, jsonData, 0600)
+	return os.WriteFile(filePath, jsonData, 0600)
 }
 
 // WriteFile writes a file map to a file, the file map is given by
@@ -483,14 +482,18 @@ func recursiveChecker(pathOptions recursiveCheckerPathOptions, ignoreRules []str
 			}
 
 			// read the current folder and read inner files and folders
-			files, err := ioutil.ReadDir(matchedPath)
+			entries, err := os.ReadDir(matchedPath)
 			if err != nil {
 				return IndexerRet{}, err
 			}
-			if len(files) == 0 {
+			if len(entries) == 0 {
 				continue
 			}
-			for _, f := range files {
+			for _, entry := range entries {
+				f, err := entry.Info()
+				if err != nil {
+					return IndexerRet{}, err
+				}
 				if _, ok := remoteDirectories[filepath.Join(joinedRelPath, f.Name())]; ok {
 					continue
 				}

pkg/util/file_indexer_test.go

@@ -1,7 +1,6 @@
 package util
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -216,7 +215,7 @@ func TestGenerateNewFileDataEntry(t *testing.T) {
 				t.Fatalf("TestUpdateIndexWithWatchChangesLocal error: unable to create directories for %s: %v", tt.absolutePath, err)
 			}
 
-			if err := ioutil.WriteFile(tt.absolutePath, []byte("non-empty-string"), 0644); err != nil {
+			if err := os.WriteFile(tt.absolutePath, []byte("non-empty-string"), 0644); err != nil {
 				t.Fatalf("TestUpdateIndexWithWatchChangesLocal error: unable to write to index file path: %v", err)
 			}
 

pkg/util/util.go

@@ -8,7 +8,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/url"
 	"os"
@@ -206,13 +205,16 @@ func CheckPathExists(path string) bool {
 // either empty or contains the devfile used.
 // TODO(feloy) sync with devfile library?
 func IsValidProjectDir(path string, devfilePath string) error {
-	files, err := ioutil.ReadDir(path)
+	entries, err := os.ReadDir(path)
 	if err != nil {
 		return err
 	}
-
-	if len(files) >= 1 {
-		for _, file := range files {
+	if len(entries) >= 1 {
+		for _, entry := range entries {
+			file, err := entry.Info()
+			if err != nil {
+				return err
+			}
 			fileName := file.Name()
 			devfilePath = strings.TrimPrefix(devfilePath, "./")
 			if !file.IsDir() && fileName == devfilePath {
@@ -824,7 +826,7 @@ func WriteToJSONFile(c interface{}, filename string) error {
 	if err = CreateIfNotExists(filename); err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(filename, data, 0600)
+	err = os.WriteFile(filename, data, 0600)
 	if err != nil {
 		return fmt.Errorf("unable to write data to file %v: %w", c, err)
 	}

pkg/util/util_test.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -23,8 +22,9 @@ import (
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/config"
 	"github.com/google/go-cmp/cmp"
-	"github.com/redhat-developer/odo/pkg/testingutil/filesystem"
 	corev1 "k8s.io/api/core/v1"
+
+	"github.com/redhat-developer/odo/pkg/testingutil/filesystem"
 )
 
 // TODO(feloy) Move tests to devfile library
@@ -405,7 +405,7 @@ func TestGetAbsPath(t *testing.T) {
 }
 
 func TestCheckPathExists(t *testing.T) {
-	dir, err := ioutil.TempFile("", "")
+	dir, err := os.CreateTemp("", "")
 	defer os.RemoveAll(dir.Name())
 	if err != nil {
 		return
@@ -1197,7 +1197,7 @@ func TestDownloadFile(t *testing.T) {
 					t.Errorf("Failed to download file with error %s", err)
 				}
 
-				got, err := ioutil.ReadFile(tt.filepath)
+				got, err := os.ReadFile(tt.filepath)
 				if err != nil {
 					t.Errorf("Failed to read file with error %s", err)
 				}
@@ -1562,7 +1562,7 @@ func TestValidateURL(t *testing.T) {
 func TestValidateFile(t *testing.T) {
 	// Create temp dir and temp file
 	tempDir := t.TempDir()
-	tempFile, err := ioutil.TempFile(tempDir, "")
+	tempFile, err := os.CreateTemp(tempDir, "")
 	if err != nil {
 		t.Errorf("Failed to create temp file: %s, error: %v", tempFile.Name(), err)
 	}
@@ -1604,7 +1604,7 @@ func TestCopyFile(t *testing.T) {
 	tempDir := t.TempDir()
 
 	// Create temp file under temp dir as source file
-	tempFile, err := ioutil.TempFile(tempDir, "")
+	tempFile, err := os.CreateTemp(tempDir, "")
 	if err != nil {
 		t.Errorf("Failed to create temp file: %s, error: %v", tempFile.Name(), err)
 	}

scripts/rpm-prepare.sh

@@ -15,8 +15,8 @@ export ODO_RPM_VERSION
 
 # Golang version variables, if you are bumping this, please contact redhat maintainers to ensure that internal
 # build systems can handle these versions
-export GOLANG_VERSION=${GOLANG_VERSION:-1.18}
-export GOLANG_VERSION_NODOT=${GOLANG_VERSION_NODOT:-118}
+export GOLANG_VERSION=${GOLANG_VERSION:-1.19}
+export GOLANG_VERSION_NODOT=${GOLANG_VERSION_NODOT:-119}
 
 # Print env for verification
 echo "Printing envs for verification"

tests/examples/source/devfiles/go/middleware/handlers.go

@@ -4,12 +4,13 @@ import (
 	"database/sql"
 	"encoding/json"
 	"fmt"
-	"go-postgres/models"
 	"log"
 	"net/http"
 	"os"
 	"strconv"
 
+	"go-postgres/models"
+
 	"github.com/gorilla/mux"
 
 	_ "github.com/lib/pq"
@@ -177,7 +178,7 @@ func DeleteUser(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(res)
 }
 
-//------------------------- handler functions ----------------
+// ------------------------- handler functions ----------------
 // insert one user in the DB
 func insertUser(user models.User) int64 {
 

tests/helper/helper_configValidate.go

@@ -2,7 +2,7 @@ package helper
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 
 	. "github.com/onsi/gomega"
@@ -19,5 +19,5 @@ ComponentSettings:
 `, compName, projectName)
 	dir := filepath.Join(context, ".odo", "env")
 	MakeDir(dir)
-	Expect(ioutil.WriteFile(filepath.Join(dir, "env.yaml"), []byte(config), 0600)).To(BeNil())
+	Expect(os.WriteFile(filepath.Join(dir, "env.yaml"), []byte(config), 0600)).To(BeNil())
 }

tests/helper/helper_filesystem.go

@@ -2,7 +2,6 @@ package helper
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -19,7 +18,7 @@ import (
 
 // CreateNewContext create new empty temporary directory
 func CreateNewContext() string {
-	directory, err := ioutil.TempDir("", "")
+	directory, err := os.MkdirTemp("", "")
 	Expect(err).NotTo(HaveOccurred())
 	fmt.Fprintf(GinkgoWriter, "Created dir: %s\n", directory)
 	return directory
@@ -166,14 +165,14 @@ func CopyExampleDevFile(devfilePath, targetDst string, devfileUpdaters ...Devfil
 
 // FileShouldContainSubstring check if file contains subString
 func FileShouldContainSubstring(file string, subString string) {
-	data, err := ioutil.ReadFile(file)
+	data, err := os.ReadFile(file)
 	Expect(err).NotTo(HaveOccurred())
 	Expect(string(data)).To(ContainSubstring(subString))
 }
 
 // FileShouldNotContainSubstring check if file does not contain subString
 func FileShouldNotContainSubstring(file string, subString string) {
-	data, err := ioutil.ReadFile(file)
+	data, err := os.ReadFile(file)
 	Expect(err).NotTo(HaveOccurred())
 	Expect(string(data)).NotTo(ContainSubstring(subString))
 }
@@ -182,12 +181,12 @@ func FileShouldNotContainSubstring(file string, subString string) {
 func ReplaceString(filename string, oldString string, newString string) {
 	fmt.Fprintf(GinkgoWriter, "Replacing \"%s\" with \"%s\" in %s\n", oldString, newString, filename)
 
-	f, err := ioutil.ReadFile(filename)
+	f, err := os.ReadFile(filename)
 	Expect(err).NotTo(HaveOccurred())
 
 	newContent := strings.ReplaceAll(string(f), oldString, newString)
 
-	err = ioutil.WriteFile(filename, []byte(newContent), 0600)
+	err = os.WriteFile(filename, []byte(newContent), 0600)
 	Expect(err).NotTo(HaveOccurred())
 }
 
@@ -196,7 +195,7 @@ func ReplaceString(filename string, oldString string, newString string) {
 func ReplaceStrings(filename string, oldStrings []string, newStrings []string) {
 	fmt.Fprintf(GinkgoWriter, "Replacing \"%v\" with \"%v\" in %s\n", oldStrings, newStrings, filename)
 
-	contentByte, err := ioutil.ReadFile(filename)
+	contentByte, err := os.ReadFile(filename)
 	Expect(err).NotTo(HaveOccurred())
 
 	newContent := string(contentByte)
@@ -204,7 +203,7 @@ func ReplaceStrings(filename string, oldStrings []string, newStrings []string) {
 		newContent = strings.ReplaceAll(newContent, oldStrings[i], newStrings[i])
 	}
 
-	err = ioutil.WriteFile(filename, []byte(newContent), 0600)
+	err = os.WriteFile(filename, []byte(newContent), 0600)
 	Expect(err).NotTo(HaveOccurred())
 }
 
@@ -213,12 +212,15 @@ func ReplaceStrings(filename string, oldStrings []string, newStrings []string) {
 func copyDir(src string, dst string, info os.FileInfo) error {
 
 	if info.IsDir() {
-		files, err := ioutil.ReadDir(src)
+		entries, err := os.ReadDir(src)
 		if err != nil {
 			return err
 		}
-
-		for _, file := range files {
+		for _, entry := range entries {
+			file, err := entry.Info()
+			if err != nil {
+				return err
+			}
 			dsrt := filepath.Join(src, file.Name())
 			ddst := filepath.Join(dst, file.Name())
 			if err := copyDir(dsrt, ddst, file); err != nil {
@@ -257,10 +259,11 @@ func CreateFileWithContent(path string, fileContent string) error {
 // directoryName is the name of the directory
 func ListFilesInDir(directoryName string) []string {
 	var filesInDirectory []string
-	files, err := ioutil.ReadDir(directoryName)
+	entries, err := os.ReadDir(directoryName)
 	Expect(err).ShouldNot(HaveOccurred())
-
-	for _, file := range files {
+	for _, entry := range entries {
+		file, err := entry.Info()
+		Expect(err).ShouldNot(HaveOccurred())
 		filesInDirectory = append(filesInDirectory, file.Name())
 	}
 	return filesInDirectory
@@ -278,7 +281,7 @@ func VerifyFileExists(filename string) bool {
 
 // ReadFile reads the file from the filePath
 func ReadFile(filePath string) (string, error) {
-	data, err := ioutil.ReadFile(filePath)
+	data, err := os.ReadFile(filePath)
 	if err != nil {
 		return "", err
 	}
@@ -291,7 +294,7 @@ func CreateSimpleFile(context, filePrefix, fileExtension string) (string, string
 
 	FilePath := filepath.Join(context, filePrefix+RandString(10)+fileExtension)
 	content := []byte(RandString(10))
-	err := ioutil.WriteFile(FilePath, content, 0600)
+	err := os.WriteFile(FilePath, content, 0600)
 	Expect(err).NotTo(HaveOccurred())
 
 	return FilePath, string(content)

tests/helper/helper_http.go

@@ -3,7 +3,7 @@ package helper
 import (
 	"crypto/tls"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"strings"
 	"time"
@@ -36,7 +36,7 @@ func HttpWaitForWithStatus(url string, match string, maxRetry int, interval int,
 		}
 		defer resp.Body.Close()
 		if resp.StatusCode == expectedCode {
-			body, _ = ioutil.ReadAll(resp.Body)
+			body, _ = io.ReadAll(resp.Body)
 			if strings.Contains(string(body), match) {
 				return
 			}

tests/helper/helper_oc.go

@@ -3,7 +3,6 @@ package helper
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"regexp"
 	"strconv"
@@ -498,7 +497,7 @@ func (oc OcRunner) AddSecret(comvar CommonVar) {
 		newYaml := strings.Replace(yaml, "openshift-config", comvar.Project, -1)
 		filename := fmt.Sprint(RandString(4), ".yaml")
 		newYamlinByte := []byte(newYaml)
-		err := ioutil.WriteFile(filename, newYamlinByte, 0600)
+		err := os.WriteFile(filename, newYamlinByte, 0600)
 		if err != nil {
 			fmt.Println(err)
 		}

tests/helper/helper_telemetry.go

@@ -3,7 +3,6 @@ package helper
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
 	"os"
 
 	_ "github.com/onsi/ginkgo/v2"
@@ -36,7 +35,7 @@ func EnableTelemetryDebug() {
 	cfg, _ := preference.NewClient(ctx)
 	err = cfg.SetConfiguration(preference.ConsentTelemetrySetting, "true")
 	Expect(err).To(BeNil())
-	tempFile, err := ioutil.TempFile("", "telemetry")
+	tempFile, err := os.CreateTemp("", "telemetry")
 	Expect(err).NotTo(HaveOccurred())
 	Expect(setDebugTelemetryFile(tempFile.Name())).NotTo(HaveOccurred())
 	Expect(tempFile.Close()).NotTo(HaveOccurred())
@@ -52,11 +51,11 @@ func GetTelemetryDebugData() segment.TelemetryData {
 	var td segment.TelemetryData
 	telemetryFile := GetDebugTelemetryFile()
 	Eventually(func() string {
-		d, err := ioutil.ReadFile(telemetryFile)
+		d, err := os.ReadFile(telemetryFile)
 		Expect(err).To(BeNil())
 		return string(d)
 	}, 10, 1).Should(ContainSubstring("event"))
-	data, err := ioutil.ReadFile(telemetryFile)
+	data, err := os.ReadFile(telemetryFile)
 	Expect(err).NotTo(HaveOccurred())
 	Expect(json.Unmarshal(data, &td)).NotTo(HaveOccurred())
 	return td

tests/integration/cmd_dev_test.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -2830,7 +2829,7 @@ CMD ["npm", "start"]
 
 				It("should remove forwarded ports from state file", func() {
 					Expect(helper.VerifyFileExists(stateFile)).To(BeTrue())
-					contentJSON, err := ioutil.ReadFile(stateFile)
+					contentJSON, err := os.ReadFile(stateFile)
 					Expect(err).ToNot(HaveOccurred())
 					helper.JsonPathContentIs(string(contentJSON), "forwardedPorts", "")
 				})
@@ -2862,7 +2861,7 @@ CMD ["npm", "start"]
 
 			It("should create a state file containing forwarded ports", func() {
 				Expect(helper.VerifyFileExists(stateFile)).To(BeTrue())
-				contentJSON, err := ioutil.ReadFile(stateFile)
+				contentJSON, err := os.ReadFile(stateFile)
 				Expect(err).ToNot(HaveOccurred())
 				helper.JsonPathContentIs(string(contentJSON), "forwardedPorts.0.containerName", "runtime")
 				helper.JsonPathContentIs(string(contentJSON), "forwardedPorts.1.containerName", "runtime")

tests/integration/cmd_devfile_init_test.go

@@ -3,7 +3,6 @@ package integration
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -384,7 +383,7 @@ var _ = Describe("odo devfile init command tests", func() {
 				BeforeEach(func() {
 					var err error
 					srcDevfile = helper.GetExamplePath("source", "devfiles", "nodejs", "devfile-with-parent.yaml")
-					originalDevfileContent, err := ioutil.ReadFile(srcDevfile)
+					originalDevfileContent, err := os.ReadFile(srcDevfile)
 					Expect(err).To(BeNil())
 					var content map[string]interface{}
 					Expect(yaml.Unmarshal(originalDevfileContent, &content)).To(BeNil())
@@ -395,7 +394,7 @@ var _ = Describe("odo devfile init command tests", func() {
 
 				It("should not replace the original devfile", func() {
 					helper.Cmd("odo", "init", "--name", "aname", "--devfile-path", srcDevfile).ShouldPass()
-					devfileContent, err := ioutil.ReadFile(filepath.Join(commonVar.Context, "devfile.yaml"))
+					devfileContent, err := os.ReadFile(filepath.Join(commonVar.Context, "devfile.yaml"))
 					Expect(err).To(BeNil())
 					var content map[string]interface{}
 					Expect(yaml.Unmarshal(devfileContent, &content)).To(BeNil())

tests/integration/plugin_handler_test.go

@@ -2,7 +2,6 @@ package integration
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -25,12 +24,12 @@ var _ = Describe("odo plugin functionality", func() {
 	var handler plugins.PluginHandler
 	var _ = BeforeEach(func() {
 		var err error
-		tempDir, err = ioutil.TempDir(os.TempDir(), "odo")
+		tempDir, err = os.MkdirTemp(os.TempDir(), "odo")
 		Expect(err).NotTo(HaveOccurred())
 		os.Setenv("PATH", fmt.Sprintf("%s:%s", origPath, tempDir))
 		var baseScriptName = "tst-script"
 		scriptName := path.Join(tempDir, baseScriptName)
-		err = ioutil.WriteFile(scriptName, sampleScript, 0755)
+		err = os.WriteFile(scriptName, sampleScript, 0755)
 		Expect(err).NotTo(HaveOccurred())
 		handler = plugins.NewExecHandler("tst")
 	})