IND-1809 Replaced io/ioutil as its deprecated

Author: mohanmanikanta2299

addlicense/main.go

@@ -22,7 +22,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -321,7 +320,7 @@ func addLicense(path string, fmode os.FileMode, tmpl *template.Template, data Li
 		return false, err
 	}
 
-	b, err := ioutil.ReadFile(path)
+	b, err := os.ReadFile(path)
 	if err != nil {
 		return false, err
 	}
@@ -338,12 +337,12 @@ func addLicense(path string, fmode os.FileMode, tmpl *template.Template, data Li
 		lic = append(line, lic...)
 	}
 	b = append(lic, b...)
-	return true, ioutil.WriteFile(path, b, fmode)
+	return true, os.WriteFile(path, b, fmode)
 }
 
 // fileHasLicense reports whether the file at path contains a license header.
 func fileHasLicense(path string) (bool, error) {
-	b, err := ioutil.ReadFile(path)
+	b, err := os.ReadFile(path)
 	if err != nil {
 		return false, err
 	}

addlicense/main_test.go

@@ -15,7 +15,6 @@
 package addlicense
 
 import (
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -33,7 +32,7 @@ func run(t *testing.T, name string, args ...string) {
 }
 
 func tempDir(t *testing.T) string {
-	dir, err := ioutil.TempDir("", "addlicense")
+	dir, err := os.MkdirTemp("", "addlicense")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -209,12 +208,12 @@ func TestMPL(t *testing.T) {
 }
 
 func createTempFile(contents string, pattern string) (*os.File, error) {
-	f, err := ioutil.TempFile("", pattern)
+	f, err := os.CreateTemp("", pattern)
 	if err != nil {
 		return nil, err
 	}
 
-	if err := ioutil.WriteFile(f.Name(), []byte(contents), 0644); err != nil {
+	if err := os.WriteFile(f.Name(), []byte(contents), 0644); err != nil {
 		return nil, err
 	}
 
@@ -275,7 +274,7 @@ func TestAddLicense(t *testing.T) {
 		if updated != tt.wantUpdated {
 			t.Errorf("addLicense with contents %q returned updated: %t, want %t", tt.contents, updated, tt.wantUpdated)
 		}
-		gotContents, err := ioutil.ReadFile(f.Name())
+		gotContents, err := os.ReadFile(f.Name())
 		if err != nil {
 			t.Error(err)
 		}

addlicense/tmpl.go

@@ -18,7 +18,7 @@ import (
 	"bufio"
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strings"
 	"text/template"
 	"unicode"
@@ -55,7 +55,7 @@ func fetchTemplate(license string, templateFile string, spdx spdxFlag) (string,
 	if spdx == spdxOnly {
 		t = tmplSPDX
 	} else if templateFile != "" {
-		d, err := ioutil.ReadFile(templateFile)
+		d, err := os.ReadFile(templateFile)
 		if err != nil {
 			return "", fmt.Errorf("license file: %w", err)
 		}