From dacaa68ee6a5c09bcc4b8b0410994361fd3ae2b8 Mon Sep 17 00:00:00 2001
From: ardevd <ardevd@protonmail.com>
Date: Mon, 15 Jan 2024 16:34:18 +0100
Subject: [PATCH] refactor: replaced deprecated ioutil calls with os
 equivalents

---
 basic_client.go          | 4 ++--
 basic_client_test.go     | 9 +++------
 macaroon_pouch.go        | 4 ++--
 macaroon_recipes_test.go | 4 ++--
 4 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/basic_client.go b/basic_client.go
index 0bb7ab2..8a4e57d 100644
--- a/basic_client.go
+++ b/basic_client.go
@@ -3,7 +3,7 @@ package lndclient
 import (
 	"encoding/hex"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 
 	"github.com/lightningnetwork/lnd/lncfg"
@@ -184,7 +184,7 @@ func parseTLSAndMacaroon(tlsPath, macDir, network string,
 		macPath := filepath.Join(macDir, bco.macFilename)
 
 		// Load the specified macaroon file.
-		macBytes, err = ioutil.ReadFile(macPath)
+		macBytes, err = os.ReadFile(macPath)
 		if err != nil {
 			return nil, nil, err
 		}
diff --git a/basic_client_test.go b/basic_client_test.go
index 3a4cb86..0749fcf 100644
--- a/basic_client_test.go
+++ b/basic_client_test.go
@@ -2,7 +2,6 @@ package lndclient
 
 import (
 	"encoding/hex"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -46,21 +45,19 @@ XhkpT5dliEGFLNe6OOgeWTU1JpEXfCud/GImtNMHQi4EDWQfvWuCNGhOoQ==
 
 	// Now let's write the data to a file to make sure parseTLSAndMacaroon
 	// parses that properly as well.
-	tempDirPath, err := ioutil.TempDir("", ".testCreds")
-	require.NoError(t, err)
-	defer os.RemoveAll(tempDirPath)
+	tempDirPath := t.TempDir()
 
 	certPath := tempDirPath + "/tls.cert"
 	tlsPEMBytes := []byte(tlsData)
 
-	err = ioutil.WriteFile(certPath, tlsPEMBytes, 0644)
+	err = os.WriteFile(certPath, tlsPEMBytes, 0644)
 	require.NoError(t, err)
 
 	macPath := tempDirPath + "/test.macaroon"
 	macBytes, err := hex.DecodeString(macData)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(macPath, macBytes, 0644)
+	err = os.WriteFile(macPath, macBytes, 0644)
 	require.NoError(t, err)
 
 	_, _, err = parseTLSAndMacaroon(
diff --git a/macaroon_pouch.go b/macaroon_pouch.go
index 5adf85b..a2115ad 100644
--- a/macaroon_pouch.go
+++ b/macaroon_pouch.go
@@ -3,7 +3,7 @@ package lndclient
 import (
 	"context"
 	"encoding/hex"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 
 	"google.golang.org/grpc/metadata"
@@ -64,7 +64,7 @@ type serializedMacaroon string
 // newSerializedMacaroon reads a new serializedMacaroon from that target
 // macaroon path. If the file can't be found, then an error is returned.
 func newSerializedMacaroon(macaroonPath string) (serializedMacaroon, error) {
-	macBytes, err := ioutil.ReadFile(macaroonPath)
+	macBytes, err := os.ReadFile(macaroonPath)
 	if err != nil {
 		return "", err
 	}
diff --git a/macaroon_recipes_test.go b/macaroon_recipes_test.go
index ab1a2d3..dcb5baa 100644
--- a/macaroon_recipes_test.go
+++ b/macaroon_recipes_test.go
@@ -3,7 +3,7 @@ package lndclient_test
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/lightninglabs/lndclient"
@@ -48,7 +48,7 @@ func (m *lightningMock) ListPermissions(
 func TestMacaroonRecipe(t *testing.T) {
 	// Load our static permissions exported from lnd by calling
 	// `lncli listpermissions > permissions.json`.
-	content, err := ioutil.ReadFile("testdata/permissions.json")
+	content, err := os.ReadFile("testdata/permissions.json")
 	require.NoError(t, err)
 
 	data := &permissionJSONData{}