all: substitute deprecated ioutil methods (#923)

api/robeaux/robeaux.go

@@ -45,7 +45,6 @@ import (
 	"compress/gzip"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -1014,7 +1013,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+	err = os.WriteFile(_filePath(dir, name), data, info.Mode())
 	if err != nil {
 		return err
 	}

examples/bebop_ps3_video.go

@@ -30,7 +30,6 @@ package main
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os/exec"
 	"sync/atomic"
 	"time"
@@ -70,7 +69,7 @@ func ffmpeg() (stdin io.WriteCloser, stderr io.ReadCloser, err error) {
 
 	go func() {
 		for {
-			buf, err := ioutil.ReadAll(stderr)
+			buf, err := io.ReadAll(stderr)
 			if err != nil {
 				fmt.Println(err)
 			}

examples/firmata_travis.go

@@ -16,7 +16,7 @@ package main
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"os"
 	"time"
@@ -63,7 +63,7 @@ func checkTravis(robot *gobot.Robot) {
 		panic(err)
 	}
 	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		panic(err)
 	}

platforms/chip/chip_adaptor.go

@@ -2,7 +2,7 @@ package chip
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -119,14 +119,14 @@ func getXIOBase() (baseAddr int, err error) {
 	}
 
 	for _, labelPath := range labels {
-		label, err := ioutil.ReadFile(labelPath)
+		label, err := os.ReadFile(labelPath)
 		if err != nil {
 			return baseAddr, err
 		}
 		if strings.HasPrefix(string(label), expanderID) {
 			expanderPath, _ := filepath.Split(labelPath)
 			basePath := filepath.Join(expanderPath, "base")
-			base, err := ioutil.ReadFile(basePath)
+			base, err := os.ReadFile(basePath)
 			if err != nil {
 				return baseAddr, err
 			}

platforms/joystick/joystick_driver.go

@@ -3,7 +3,7 @@ package joystick
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"time"
 
 	"github.com/veandco/go-sdl2/sdl"
@@ -250,7 +250,7 @@ func (j *Driver) findHatName(id uint8, hat uint8, list []hat) string {
 
 // loadFile load the joystick config from a .json file
 func (j *Driver) loadFile() error {
-	file, e := ioutil.ReadFile(j.configPath)
+	file, e := os.ReadFile(j.configPath)
 	if e != nil {
 		return e
 	}

platforms/leap/leap_motion_driver_test.go

@@ -3,7 +3,7 @@ package leap
 import (
 	"errors"
 	"io"
-	"io/ioutil"
+	"os"
 	"strings"
 	"sync"
 	"testing"
@@ -47,7 +47,7 @@ func initTestLeapMotionDriver() (*Driver, *NullReadWriteCloser) {
 
 	d := NewDriver(a)
 	d.receive = func(ws io.ReadWriteCloser, buf *[]byte) {
-		file, _ := ioutil.ReadFile("./test/support/example_frame.json")
+		file, _ := os.ReadFile("./test/support/example_frame.json")
 		copy(*buf, file)
 	}
 	return d, rwc
@@ -82,7 +82,7 @@ func TestLeapMotionDriverHalt(t *testing.T) {
 
 func TestLeapMotionDriverParser(t *testing.T) {
 	d, _ := initTestLeapMotionDriver()
-	file, _ := ioutil.ReadFile("./test/support/example_frame.json")
+	file, _ := os.ReadFile("./test/support/example_frame.json")
 	parsedFrame := d.ParseFrame(file)
 
 	if parsedFrame.Hands == nil || parsedFrame.Pointables == nil || parsedFrame.Gestures == nil {

platforms/mqtt/mqtt_adaptor.go

@@ -3,7 +3,7 @@ package mqtt
 import (
 	"crypto/tls"
 	"crypto/x509"
-	"io/ioutil"
+	"os"
 
 	"gobot.io/x/gobot/v2"
 
@@ -204,7 +204,7 @@ func (a *Adaptor) newTLSConfig() *tls.Config {
 	var certpool *x509.CertPool
 	if len(a.ServerCert()) > 0 {
 		certpool = x509.NewCertPool()
-		pemCerts, err := ioutil.ReadFile(a.ServerCert())
+		pemCerts, err := os.ReadFile(a.ServerCert())
 		if err == nil {
 			certpool.AppendCertsFromPEM(pemCerts)
 		}

platforms/parrot/bebop/client/examples/video.go

@@ -25,7 +25,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os/exec"
 	"time"
 
@@ -73,7 +73,7 @@ func main() {
 
 	go func() {
 		for {
-			buf, err := ioutil.ReadAll(ffmpegErr)
+			buf, err := io.ReadAll(ffmpegErr)
 			if err != nil {
 				fmt.Println(err)
 			}

platforms/particle/adaptor.go

@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -262,7 +262,7 @@ func (s *Adaptor) request(method string, url string, params url.Values) (m map[s
 		return
 	}
 
-	buf, err := ioutil.ReadAll(resp.Body)
+	buf, err := io.ReadAll(resp.Body)
 
 	if err != nil {
 		return

system/fs_mock.go

@@ -2,7 +2,6 @@ package system
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"regexp"
@@ -135,7 +134,7 @@ func (fs *MockFilesystem) stat(name string) (os.FileInfo, error) {
 	_, ok := fs.Files[name]
 	if ok {
 		// return file based mock FileInfo
-		tmpFile, err := ioutil.TempFile("", name)
+		tmpFile, err := os.CreateTemp("", name)
 		if err != nil {
 			return nil, err
 		}
@@ -148,7 +147,7 @@ func (fs *MockFilesystem) stat(name string) (os.FileInfo, error) {
 	for path := range fs.Files {
 		if strings.HasPrefix(path, dirName) {
 			// return dir based mock FileInfo, TempDir don't like "/" in between
-			tmpDir, err := ioutil.TempDir("", strings.ReplaceAll(name, "/", "_"))
+			tmpDir, err := os.MkdirTemp("", strings.ReplaceAll(name, "/", "_"))
 			if err != nil {
 				return nil, err
 			}