Fix lint issues

storage/local/storage.go

@@ -2,7 +2,6 @@ package local
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 
 	"github.com/minamijoyo/tfmigrate/storage"
@@ -33,7 +32,7 @@ func (s *Storage) Write(ctx context.Context, b []byte) error {
 	// G306: Expect WriteFile permissions to be 0600 or less
 	// We ignore it because a history file doesn't contains sensitive data.
 	// Note that changing a permission to 0600 is breaking change.
-	return ioutil.WriteFile(s.config.Path, b, 0644)
+	return os.WriteFile(s.config.Path, b, 0644)
 }
 
 // Read reads migration history data from storage.
@@ -44,5 +43,5 @@ func (s *Storage) Read(ctx context.Context) ([]byte, error) {
 		// If the key does not exist
 		return []byte{}, nil
 	}
-	return ioutil.ReadFile(s.config.Path)
+	return os.ReadFile(s.config.Path)
 }

storage/local/storage_test.go

@@ -2,7 +2,6 @@ package local
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -35,7 +34,7 @@ func TestStorageWrite(t *testing.T) {
 
 	for _, tc := range cases {
 		t.Run(tc.desc, func(t *testing.T) {
-			localDir, err := ioutil.TempDir("", "localDir")
+			localDir, err := os.MkdirTemp("", "localDir")
 			if err != nil {
 				t.Fatalf("failed to craete temp dir: %s", err)
 			}
@@ -55,7 +54,7 @@ func TestStorageWrite(t *testing.T) {
 			}
 
 			if tc.ok {
-				got, err := ioutil.ReadFile(tc.config.Path)
+				got, err := os.ReadFile(tc.config.Path)
 				if err != nil {
 					t.Fatalf("failed to read contents: %s", err)
 				}
@@ -94,13 +93,13 @@ func TestStorageRead(t *testing.T) {
 
 	for _, tc := range cases {
 		t.Run(tc.desc, func(t *testing.T) {
-			localDir, err := ioutil.TempDir("", "localDir")
+			localDir, err := os.MkdirTemp("", "localDir")
 			if err != nil {
 				t.Fatalf("failed to craete temp dir: %s", err)
 			}
 			t.Cleanup(func() { os.RemoveAll(localDir) })
 
-			err = ioutil.WriteFile(filepath.Join(localDir, "history.json"), tc.contents, 0600)
+			err = os.WriteFile(filepath.Join(localDir, "history.json"), tc.contents, 0600)
 			if err != nil {
 				t.Fatalf("failed to write contents: %s", err)
 			}

storage/s3/storage_test.go

@@ -2,7 +2,7 @@ package s3
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 	"strings"
 	"testing"
 
@@ -98,7 +98,7 @@ func TestStorageRead(t *testing.T) {
 			},
 			client: &mockClient{
 				getOutput: &s3.GetObjectOutput{
-					Body: ioutil.NopCloser(strings.NewReader("foo")),
+					Body: io.NopCloser(strings.NewReader("foo")),
 				},
 				err: nil,
 			},