all: ioutil is deprecated in go1.19 (#3718)

3 files changed, 7 insertions, 10 deletions

diff --git a/vm/adb/adb.go b/vm/adb/adb.go
index 44bdc040d..b63331cc8 100644
--- a/vm/adb/adb.go
+++ b/vm/adb/adb.go
@@ -11,7 +11,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -251,7 +250,7 @@ func findConsoleImpl(adb, dev string) (string, error) {
 				<-done
 				tty.Close()
 			}()
-			*out, _ = ioutil.ReadAll(tty)
+			*out, _ = io.ReadAll(tty)
 			errors <- nil
 		}(con)
 	}
@@ -409,7 +408,7 @@ func (inst *instance) repair() error {
 func (inst *instance) runScript(script string) error {
 	log.Logf(2, "adb: executing %s", script)
 	// Execute the contents of the script.
-	contents, err := ioutil.ReadFile(script)
+	contents, err := os.ReadFile(script)
 	if err != nil {
 		return fmt.Errorf("unable to read %s: %v", script, err)
 	}
diff --git a/vm/gce/gce.go b/vm/gce/gce.go
index ba05af51b..458b6ed0f 100644
--- a/vm/gce/gce.go
+++ b/vm/gce/gce.go
@@ -17,7 +17,6 @@ import (
 	"compress/gzip"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -149,7 +148,7 @@ func (pool *Pool) Create(workdir string, index int) (vmimpl.Instance, error) {
 	if out, err := keygen.CombinedOutput(); err != nil {
 		return nil, fmt.Errorf("failed to execute ssh-keygen: %v\n%s", err, out)
 	}
-	gceKeyPub, err := ioutil.ReadFile(gceKey + ".pub")
+	gceKeyPub, err := os.ReadFile(gceKey + ".pub")
 	if err != nil {
 		return nil, fmt.Errorf("failed to read file: %v", err)
 	}
diff --git a/vm/isolated/isolated.go b/vm/isolated/isolated.go
index 5bff5f1c0..922dea482 100755
--- a/vm/isolated/isolated.go
+++ b/vm/isolated/isolated.go
@@ -7,7 +7,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -187,7 +186,7 @@ func (inst *instance) ssh(command string) error {
 	}()
 	if err := cmd.Wait(); err != nil {
 		close(done)
-		out, _ := ioutil.ReadAll(rpipe)
+		out, _ := io.ReadAll(rpipe)
 		if inst.debug {
 			log.Logf(0, "ssh failed: %v\n%s", err, out)
 		}
@@ -224,11 +223,11 @@ func (inst *instance) repair() error {
 		if len(inst.cfg.USBDevNums) > 0 {
 			log.Logf(2, "isolated: trying to reboot by USB authorization")
 			usbAuth := fmt.Sprintf("%s%s%s", "/sys/bus/usb/devices/", inst.cfg.USBDevNums[inst.index], "/authorized")
-			if err := ioutil.WriteFile(usbAuth, []byte("0"), 0); err != nil {
+			if err := os.WriteFile(usbAuth, []byte("0"), 0); err != nil {
 				log.Logf(2, "isolated: failed to turn off the device")
 				return err
 			}
-			if err := ioutil.WriteFile(usbAuth, []byte("1"), 0); err != nil {
+			if err := os.WriteFile(usbAuth, []byte("1"), 0); err != nil {
 				log.Logf(2, "isolated: failed to turn on the device")
 				return err
 			}
@@ -243,7 +242,7 @@ func (inst *instance) repair() error {
 	if inst.cfg.StartupScript != "" {
 		log.Logf(2, "isolated: executing startup_script")
 		// Execute the contents of the StartupScript on the DUT.
-		contents, err := ioutil.ReadFile(inst.cfg.StartupScript)
+		contents, err := os.ReadFile(inst.cfg.StartupScript)
 		if err != nil {
 			return fmt.Errorf("unable to read startup_script: %v", err)
 		}