multi: replace ioutil.WriteFile

lnrpc/chainrpc/chain_server.go

@@ -7,7 +7,6 @@ import (
 	"bytes"
 	"context"
 	"errors"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sync"
@@ -153,7 +152,7 @@ func New(cfg *Config) (*Server, lnrpc.MacaroonPerms, error) {
 		if err != nil {
 			return nil, nil, err
 		}
-		err = ioutil.WriteFile(macFilePath, chainNotifierMacBytes, 0644)
+		err = os.WriteFile(macFilePath, chainNotifierMacBytes, 0644)
 		if err != nil {
 			_ = os.Remove(macFilePath)
 			return nil, nil, err

lnrpc/invoicesrpc/invoices_server.go

@@ -7,7 +7,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -132,7 +131,7 @@ func New(cfg *Config) (*Server, lnrpc.MacaroonPerms, error) {
 		if err != nil {
 			return nil, nil, err
 		}
-		err = ioutil.WriteFile(macFilePath, invoicesMacBytes, 0644)
+		err = os.WriteFile(macFilePath, invoicesMacBytes, 0644)
 		if err != nil {
 			_ = os.Remove(macFilePath)
 			return nil, nil, err

lnrpc/routerrpc/router_server.go

@@ -6,7 +6,6 @@ import (
 	crand "crypto/rand"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sync/atomic"
@@ -216,7 +215,7 @@ func New(cfg *Config) (*Server, lnrpc.MacaroonPerms, error) {
 		if err != nil {
 			return nil, nil, err
 		}
-		err = ioutil.WriteFile(macFilePath, routerMacBytes, 0644)
+		err = os.WriteFile(macFilePath, routerMacBytes, 0644)
 		if err != nil {
 			_ = os.Remove(macFilePath)
 			return nil, nil, err

lnrpc/signrpc/signer_server.go

@@ -8,7 +8,6 @@ import (
 	"context"
 	"crypto/sha256"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -167,7 +166,7 @@ func New(cfg *Config) (*Server, lnrpc.MacaroonPerms, error) {
 		if err != nil {
 			return nil, nil, err
 		}
-		err = ioutil.WriteFile(macFilePath, signerMacBytes, 0644)
+		err = os.WriteFile(macFilePath, signerMacBytes, 0644)
 		if err != nil {
 			_ = os.Remove(macFilePath)
 			return nil, nil, err

lnrpc/walletrpc/walletkit_server.go

@@ -10,7 +10,6 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"math"
 	"os"
 	"path/filepath"
@@ -289,7 +288,7 @@ func New(cfg *Config) (*WalletKit, lnrpc.MacaroonPerms, error) {
 		if err != nil {
 			return nil, nil, err
 		}
-		err = ioutil.WriteFile(macFilePath, walletKitMacBytes, 0644)
+		err = os.WriteFile(macFilePath, walletKitMacBytes, 0644)
 		if err != nil {
 			_ = os.Remove(macFilePath)
 			return nil, nil, err