remove io/ioutil

benchmark/bench_datasets_test.go

@@ -3,7 +3,6 @@ package benchmark_test
 import (
 	"compress/gzip"
 	"encoding/json"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -74,7 +73,7 @@ func fixture(tb testing.TB, path string) []byte {
 	gz, err := gzip.NewReader(f)
 	require.NoError(tb, err)
 
-	buf, err := ioutil.ReadAll(gz)
+	buf, err := os.ReadAll(gz)
 	require.NoError(tb, err)
 	return buf
 }

benchmark/benchmark_test.go

@@ -2,7 +2,7 @@ package benchmark_test
 
 import (
 	"bytes"
-	"io/ioutil"
+	"os"
 	"testing"
 	"time"
 
@@ -59,7 +59,7 @@ func BenchmarkUnmarshal(b *testing.B) {
 	})
 
 	b.Run("ReferenceFile", func(b *testing.B) {
-		bytes, err := ioutil.ReadFile("benchmark.toml")
+		bytes, err := os.ReadFile("benchmark.toml")
 		if err != nil {
 			b.Fatal(err)
 		}
@@ -165,7 +165,7 @@ func BenchmarkMarshal(b *testing.B) {
 	})
 
 	b.Run("ReferenceFile", func(b *testing.B) {
-		bytes, err := ioutil.ReadFile("benchmark.toml")
+		bytes, err := os.ReadFile("benchmark.toml")
 		if err != nil {
 			b.Fatal(err)
 		}
@@ -344,7 +344,7 @@ type benchmarkDoc struct {
 }
 
 func TestUnmarshalReferenceFile(t *testing.T) {
-	bytes, err := ioutil.ReadFile("benchmark.toml")
+	bytes, err := os.ReadFile("benchmark.toml")
 	require.NoError(t, err)
 	d := benchmarkDoc{}
 	err = toml.Unmarshal(bytes, &d)

cmd/tomltestgen/main.go

@@ -13,7 +13,6 @@ import (
 	"fmt"
 	"go/format"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
@@ -72,7 +71,7 @@ func downloadTmpFile(url string) string {
 	}
 	defer resp.Body.Close()
 
-	tmpfile, err := ioutil.TempFile("", "toml-test-*.zip")
+	tmpfile, err := os.CreateTemp("", "toml-test-*.zip")
 	if err != nil {
 		panic(err)
 	}
@@ -113,7 +112,7 @@ func readFileFromZip(f *zip.File) string {
 		panic(err)
 	}
 	defer reader.Close()
-	bytes, err := ioutil.ReadAll(reader)
+	bytes, err := io.ReadAll(reader)
 	if err != nil {
 		panic(err)
 	}
@@ -216,7 +215,7 @@ func main() {
 		return
 	}
 
-	err = os.WriteFile(*out, outputBytes, 0644)
+	err = os.WriteFile(*out, outputBytes, 0o644)
 	if err != nil {
 		panic(err)
 	}

fuzz_test.go

@@ -4,7 +4,7 @@
 package toml_test
 
 import (
-	"io/ioutil"
+	"os"
 	"strings"
 	"testing"
 
@@ -13,7 +13,7 @@ import (
 )
 
 func FuzzUnmarshal(f *testing.F) {
-	file, err := ioutil.ReadFile("benchmark/benchmark.toml")
+	file, err := os.ReadFile("benchmark/benchmark.toml")
 	if err != nil {
 		panic(err)
 	}

internal/cli/cli.go

@@ -6,7 +6,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 
 	"github.com/pelletier/go-toml/v2"
@@ -72,7 +71,7 @@ func (p *Program) runAllFilesInPlace(files []string) error {
 }
 
 func (p *Program) runFileInPlace(path string) error {
-	in, err := ioutil.ReadFile(path)
+	in, err := os.ReadFile(path)
 	if err != nil {
 		return err
 	}
@@ -84,5 +83,5 @@ func (p *Program) runFileInPlace(path string) error {
 		return err
 	}
 
-	return ioutil.WriteFile(path, out.Bytes(), 0600)
+	return os.WriteFile(path, out.Bytes(), 0o600)
 }

internal/cli/cli_test.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@@ -64,7 +63,7 @@ func TestProcessMainStdinDecodeErr(t *testing.T) {
 }
 
 func TestProcessMainFileExists(t *testing.T) {
-	tmpfile, err := ioutil.TempFile("", "example")
+	tmpfile, err := os.CreateTemp("", "example")
 	require.NoError(t, err)
 	defer os.Remove(tmpfile.Name())
 	_, err = tmpfile.Write([]byte(`some data`))
@@ -96,16 +95,16 @@ func TestProcessMainFileDoesNotExist(t *testing.T) {
 }
 
 func TestProcessMainFilesInPlace(t *testing.T) {
-	dir, err := ioutil.TempDir("", "")
+	dir, err := os.MkdirTemp("", "")
 	require.NoError(t, err)
 	defer os.RemoveAll(dir)
 
 	path1 := path.Join(dir, "file1")
 	path2 := path.Join(dir, "file2")
 
-	err = ioutil.WriteFile(path1, []byte("content 1"), 0600)
+	err = os.WriteFile(path1, []byte("content 1"), 0o600)
 	require.NoError(t, err)
-	err = ioutil.WriteFile(path2, []byte("content 2"), 0600)
+	err = os.WriteFile(path2, []byte("content 2"), 0o600)
 	require.NoError(t, err)
 
 	p := Program{
@@ -117,11 +116,11 @@ func TestProcessMainFilesInPlace(t *testing.T) {
 
 	require.Equal(t, 0, exit)
 
-	v1, err := ioutil.ReadFile(path1)
+	v1, err := os.ReadFile(path1)
 	require.NoError(t, err)
 	require.Equal(t, "1", string(v1))
 
-	v2, err := ioutil.ReadFile(path2)
+	v2, err := os.ReadFile(path2)
 	require.NoError(t, err)
 	require.Equal(t, "2", string(v2))
 }
@@ -138,13 +137,13 @@ func TestProcessMainFilesInPlaceErrRead(t *testing.T) {
 }
 
 func TestProcessMainFilesInPlaceFailFn(t *testing.T) {
-	dir, err := ioutil.TempDir("", "")
+	dir, err := os.MkdirTemp("", "")
 	require.NoError(t, err)
 	defer os.RemoveAll(dir)
 
 	path1 := path.Join(dir, "file1")
 
-	err = ioutil.WriteFile(path1, []byte("content 1"), 0600)
+	err = os.WriteFile(path1, []byte("content 1"), 0o600)
 	require.NoError(t, err)
 
 	p := Program{
@@ -156,13 +155,13 @@ func TestProcessMainFilesInPlaceFailFn(t *testing.T) {
 
 	require.Equal(t, -1, exit)
 
-	v1, err := ioutil.ReadFile(path1)
+	v1, err := os.ReadFile(path1)
 	require.NoError(t, err)
 	require.Equal(t, "content 1", string(v1))
 }
 
 func dummyFileFn(r io.Reader, w io.Writer) error {
-	b, err := ioutil.ReadAll(r)
+	b, err := io.ReadAll(r)
 	if err != nil {
 		return err
 	}