From 055a274dc5474ef2f76f5a50fd20f5a33ac24232 Mon Sep 17 00:00:00 2001
From: Taichi Sasaki <tchsskk@gmail.com>
Date: Wed, 30 Aug 2023 00:04:31 +0900
Subject: [PATCH] Not use deprecated io/ioutil

---
 providers/fs/fs.go  | 4 ++--
 providers/s3/s3.go  | 4 ++--
 tests/koanf_test.go | 9 ++++-----
 3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/providers/fs/fs.go b/providers/fs/fs.go
index c008b427..0df2de04 100644
--- a/providers/fs/fs.go
+++ b/providers/fs/fs.go
@@ -9,8 +9,8 @@ package fs
 
 import (
 	"errors"
+	"io"
 	"io/fs"
-	"io/ioutil"
 )
 
 // FS implements an fs.FS provider.
@@ -32,7 +32,7 @@ func (f *FS) ReadBytes() ([]byte, error) {
 	}
 	defer fd.Close()
 
-	return ioutil.ReadAll(fd)
+	return io.ReadAll(fd)
 }
 
 // Read is not supported by the fs.FS provider.
diff --git a/providers/s3/s3.go b/providers/s3/s3.go
index 13e63436..4c7c7e2f 100644
--- a/providers/s3/s3.go
+++ b/providers/s3/s3.go
@@ -4,7 +4,7 @@ package s3
 
 import (
 	"errors"
-	"io/ioutil"
+	"io"
 
 	"github.com/rhnvrm/simples3"
 )
@@ -56,7 +56,7 @@ func (r *S3) ReadBytes() ([]byte, error) {
 
 	defer resp.Close()
 
-	data, err := ioutil.ReadAll(resp)
+	data, err := io.ReadAll(resp)
 	if err != nil {
 		return nil, err
 	}
diff --git a/tests/koanf_test.go b/tests/koanf_test.go
index bd2bd509..ddc96fba 100644
--- a/tests/koanf_test.go
+++ b/tests/koanf_test.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -438,9 +437,9 @@ func TestWatchFile(t *testing.T) {
 	)
 
 	// Create a tmp config file.
-	tmpDir, _ := ioutil.TempDir("", "koanf_*") // TODO: replace with t.TempDir() as of go v1.15
+	tmpDir := t.TempDir()
 	tmpFile := filepath.Join(tmpDir, "koanf_mock")
-	err := ioutil.WriteFile(tmpFile, []byte(`{"parent": {"name": "name1"}}`), 0600) // TODO: replace with os.WriteFile as of go v1.16
+	err := os.WriteFile(tmpFile, []byte(`{"parent": {"name": "name1"}}`), 0600)
 	require.NoError(t, err, "error creating temp config file: %v", err)
 
 	// Load the new config and watch it for changes.
@@ -469,7 +468,7 @@ func TestWatchFile(t *testing.T) {
 
 	// Wait a second and change the file.
 	time.Sleep(1 * time.Second)
-	ioutil.WriteFile(tmpFile, []byte(`{"parent": {"name": "name2"}}`), 0600) // TODO: replace with os.WriteFile as of go v1.16
+	os.WriteFile(tmpFile, []byte(`{"parent": {"name": "name2"}}`), 0600)
 	wg.Wait()
 
 	assert.Condition(func() bool {
@@ -482,7 +481,7 @@ func TestWatchFileSymlink(t *testing.T) {
 		assert = assert.New(t)
 		k      = koanf.New(delim)
 	)
-	tmpDir, _ := ioutil.TempDir("", "koanf_*") // TODO: replace with t.TempDir() as of go v1.15
+	tmpDir := t.TempDir()
 
 	// Create a symlink.
 	symPath := filepath.Join(tmpDir, "koanf_test_symlink")