Stopo using ioutil

theme/adwaita_theme_generator.go

@@ -24,7 +24,6 @@ import (
 	"go/format"
 	"image/color"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
@@ -295,7 +294,7 @@ func generateColorScheme() error {
 		return fmt.Errorf("failed to get page: %w", err)
 	}
 	defer reps.Body.Close()
-	htpage, err := ioutil.ReadAll(reps.Body)
+	htpage, err := io.ReadAll(reps.Body)
 	if err != nil {
 		return fmt.Errorf("failed to read body: %w", err)
 	}
@@ -409,7 +408,7 @@ func generateColorScheme() error {
 	if formatted, err := format.Source(buffer.Bytes()); err != nil {
 		return fmt.Errorf("failed to format source: %w", err)
 	} else {
-		return ioutil.WriteFile(colorSchemeOutput, formatted, 0644)
+		return os.WriteFile(colorSchemeOutput, formatted, 0644)
 	}
 }
 
@@ -427,7 +426,7 @@ func generateIcons() error {
 	tarReader := tar.NewReader(resp.Body)
 
 	// extract in a temporary directory
-	tmpDir, err := ioutil.TempDir("", "adwaita")
+	tmpDir, err := os.MkdirTemp("", "adwaita")
 	if err != nil {
 		return err
 	}
@@ -508,7 +507,7 @@ func generateIcons() error {
 	if formatted, err := format.Source(buffer.Bytes()); err != nil {
 		return fmt.Errorf("error formatting source: %w", err)
 	} else {
-		return ioutil.WriteFile(iconsOutput, formatted, 0644)
+		return os.WriteFile(iconsOutput, formatted, 0644)
 	}
 }
 

widget/filetree_test.go

@@ -1,7 +1,6 @@
 package widget
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -163,15 +162,15 @@ func Test_NewFileTree(t *testing.T) {
 
 func createTempDir(t *testing.T) string {
 	t.Helper()
-	tempDir, err := ioutil.TempDir("", "test")
+	tempDir, err := os.MkdirTemp("", "test")
 	assert.NoError(t, err)
 	err = os.MkdirAll(path.Join(tempDir, "A"), os.ModePerm)
 	assert.NoError(t, err)
 	err = os.MkdirAll(path.Join(tempDir, "B"), os.ModePerm)
 	assert.NoError(t, err)
-	err = ioutil.WriteFile(path.Join(tempDir, "B", "C.txt"), []byte("c"), os.ModePerm)
+	err = os.WriteFile(path.Join(tempDir, "B", "C.txt"), []byte("c"), os.ModePerm)
 	assert.NoError(t, err)
-	err = ioutil.WriteFile(path.Join(tempDir, "B", "D.txt"), []byte("d"), os.ModePerm)
+	err = os.WriteFile(path.Join(tempDir, "B", "D.txt"), []byte("d"), os.ModePerm)
 	assert.NoError(t, err)
 	return tempDir
 }

widget/gif_test.go

@@ -1,7 +1,7 @@
 package widget
 
 import (
-	"io/ioutil"
+	"io"
 	"os"
 	"testing"
 	"time"
@@ -33,7 +33,7 @@ func TestAnimatedGif_MinSize(t *testing.T) {
 	f, err := os.Open("./testdata/gif/earth.gif")
 	assert.Nil(t, err)
 
-	r, err := ioutil.ReadAll(f)
+	r, err := io.ReadAll(f)
 	assert.Nil(t, err)
 
 	res := fyne.NewStaticResource("earth.gif", r)