Fixing deprecated ioutils functions

cmd/kaspawallet/broadcast.go

@@ -3,7 +3,7 @@ package main
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strings"
 
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
@@ -30,7 +30,7 @@ func broadcast(conf *broadcastConfig) error {
 
 	transactionsHex := conf.Transactions
 	if conf.TransactionsFile != "" {
-		transactionHexBytes, err := ioutil.ReadFile(conf.TransactionsFile)
+		transactionHexBytes, err := os.ReadFile(conf.TransactionsFile)
 		if err != nil {
 			return errors.Wrapf(err, "Could not read hex from %s", conf.TransactionsFile)
 		}

cmd/kaspawallet/parse.go

@@ -3,13 +3,14 @@ package main
 import (
 	"encoding/hex"
 	"fmt"
+	"os"
+	"strings"
+
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/serialization"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
 	"github.com/pkg/errors"
-	"io/ioutil"
-	"strings"
 )
 
 func parse(conf *parseConfig) error {
@@ -22,7 +23,7 @@ func parse(conf *parseConfig) error {
 
 	transactionHex := conf.Transaction
 	if conf.TransactionFile != "" {
-		transactionHexBytes, err := ioutil.ReadFile(conf.TransactionFile)
+		transactionHexBytes, err := os.ReadFile(conf.TransactionFile)
 		if err != nil {
 			return errors.Wrapf(err, "Could not read hex from %s", conf.TransactionFile)
 		}

cmd/kaspawallet/sign.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 
@@ -34,7 +33,7 @@ func sign(conf *signConfig) error {
 
 	transactionsHex := conf.Transaction
 	if conf.TransactionFile != "" {
-		transactionHexBytes, err := ioutil.ReadFile(conf.TransactionFile)
+		transactionHexBytes, err := os.ReadFile(conf.TransactionFile)
 		if err != nil {
 			return errors.Wrapf(err, "Could not read hex from %s", conf.TransactionFile)
 		}

domain/consensus/factory.go

@@ -1,7 +1,6 @@
 package consensus
 
 import (
-	"io/ioutil"
 	"os"
 	"sync"
 
@@ -569,7 +568,7 @@ func (f *factory) NewTestConsensus(config *Config, testName string) (
 	tc testapi.TestConsensus, teardown func(keepDataDir bool), err error) {
 	datadir := f.dataDir
 	if datadir == "" {
-		datadir, err = ioutil.TempDir("", testName)
+		datadir, err = os.MkdirTemp("", testName)
 		if err != nil {
 			return nil, nil, err
 		}

domain/consensus/factory_test.go

@@ -1,7 +1,7 @@
 package consensus
 
 import (
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/kaspanet/kaspad/domain/prefixmanager/prefix"
@@ -15,7 +15,7 @@ func TestNewConsensus(t *testing.T) {
 
 	config := &Config{Params: dagconfig.DevnetParams}
 
-	tmpDir, err := ioutil.TempDir("", "TestNewConsensus")
+	tmpDir, err := os.MkdirTemp("", "TestNewConsensus")
 	if err != nil {
 		return
 	}

domain/consensus/test_consensus_render_to_dot.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
+	"os"
 	"os/exec"
 	"strings"
 
@@ -79,5 +79,5 @@ func renderDotScript(dotScript string, filename string) error {
 		return fmt.Errorf("Error getting output of dot: %s\nstderr:\n%s", err, stderr.String())
 	}
 
-	return ioutil.WriteFile(filename, svg, 0600)
+	return os.WriteFile(filename, svg, 0600)
 }

domain/consensus/utils/txscript/reference_test.go

@@ -8,7 +8,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strconv"
 	"strings"
 	"testing"
@@ -380,7 +380,7 @@ func testScripts(t *testing.T, tests [][]interface{}, useSigCache bool) {
 // TestScripts ensures all of the tests in script_tests.json execute with the
 // expected results as defined in the test data.
 func TestScripts(t *testing.T) {
-	file, err := ioutil.ReadFile("data/script_tests.json")
+	file, err := os.ReadFile("data/script_tests.json")
 	if err != nil {
 		t.Fatalf("TestScripts: %v\n", err)
 	}

domain/domain_test.go

@@ -4,6 +4,10 @@ import (
 	"fmt"
 	"math/big"
 
+	"os"
+	"strings"
+	"testing"
+
 	"github.com/kaspanet/kaspad/domain"
 	"github.com/kaspanet/kaspad/domain/consensus"
 	"github.com/kaspanet/kaspad/domain/consensus/model"
@@ -12,17 +16,13 @@ import (
 	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
 	"github.com/kaspanet/kaspad/domain/miningmanager/mempool"
 	"github.com/kaspanet/kaspad/infrastructure/db/database/ldb"
-	"io/ioutil"
-	"os"
-	"strings"
-	"testing"
 )
 
 func TestCreateStagingConsensus(t *testing.T) {
 	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
-		dataDir, err := ioutil.TempDir("", fmt.Sprintf("TestCreateStagingConsensus-%s", consensusConfig.Name))
+		dataDir, err := os.MkdirTemp("", fmt.Sprintf("TestCreateStagingConsensus-%s", consensusConfig.Name))
 		if err != nil {
-			t.Fatalf("ioutil.TempDir: %+v", err)
+			t.Fatalf("os.MkdirTemp: %+v", err)
 		}
 		defer os.RemoveAll(dataDir)
 

infrastructure/config/config_test.go

@@ -1,7 +1,6 @@
 package config
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -21,14 +20,14 @@ func TestCreateDefaultConfigFile(t *testing.T) {
 	sampleConfigFile := filepath.Join(filepath.Dir(path), "sample-kaspad.conf")
 
 	// Setup a temporary directory
-	tmpDir, err := ioutil.TempDir("", "kaspad")
+	tmpDir, err := os.MkdirTemp("", "kaspad")
 	if err != nil {
 		t.Fatalf("Failed creating a temporary directory: %v", err)
 	}
 	testpath := filepath.Join(tmpDir, "test.conf")
 
 	// copy config file to location of kaspad binary
-	data, err := ioutil.ReadFile(sampleConfigFile)
+	data, err := os.ReadFile(sampleConfigFile)
 	if err != nil {
 		t.Fatalf("Failed reading sample config file: %v", err)
 	}
@@ -37,7 +36,7 @@ func TestCreateDefaultConfigFile(t *testing.T) {
 		t.Fatalf("Failed obtaining app path: %v", err)
 	}
 	tmpConfigFile := filepath.Join(appPath, "sample-kaspad.conf")
-	err = ioutil.WriteFile(tmpConfigFile, data, 0644)
+	err = os.WriteFile(tmpConfigFile, data, 0644)
 	if err != nil {
 		t.Fatalf("Failed copying sample config file: %v", err)
 	}

infrastructure/db/database/common_test.go

@@ -2,7 +2,7 @@ package database_test
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/kaspanet/kaspad/infrastructure/db/database"
@@ -20,7 +20,7 @@ var databasePrepareFuncs = []databasePrepareFunc{
 
 func prepareLDBForTest(t *testing.T, testName string) (db database.Database, name string, teardownFunc func()) {
 	// Create a temp db to run tests against
-	path, err := ioutil.TempDir("", testName)
+	path, err := os.MkdirTemp("", testName)
 	if err != nil {
 		t.Fatalf("%s: TempDir unexpectedly "+
 			"failed: %s", testName, err)

infrastructure/db/database/ldb/leveldb_test.go

@@ -1,7 +1,7 @@
 package ldb
 
 import (
-	"io/ioutil"
+	"os"
 	"reflect"
 	"testing"
 
@@ -10,7 +10,7 @@ import (
 
 func prepareDatabaseForTest(t *testing.T, testName string) (ldb *LevelDB, teardownFunc func()) {
 	// Create a temp db to run tests against
-	path, err := ioutil.TempDir("", testName)
+	path, err := os.MkdirTemp("", testName)
 	if err != nil {
 		t.Fatalf("%s: TempDir unexpectedly "+
 			"failed: %s", testName, err)

stability-tests/common/tempdir.go

@@ -1,9 +1,9 @@
 package common
 
-import "io/ioutil"
+import "os"
 
 // TempDir returns a temporary directory with the given pattern, prefixed with STABILITY_TEMP_DIR_
 func TempDir(pattern string) (string, error) {
 	const prefix = "STABILITY_TEMP_DIR_"
-	return ioutil.TempDir("", prefix+pattern)
+	return os.MkdirTemp("", prefix+pattern)
 }

stability-tests/netsync/fast-pruning-ibd-test/generate_test.go

@@ -1,15 +1,15 @@
 package fast_pruning_ibd_test
 
 import (
-	"github.com/kaspanet/kaspad/domain/consensus"
-	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
-	"github.com/kaspanet/kaspad/domain/dagconfig"
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
 	"time"
+
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
+	"github.com/kaspanet/kaspad/domain/dagconfig"
 )
 
 // TestGenerateFastPruningIBDTest generates the json needed for dag-for-fast-pruning-ibd-test.json.gz
@@ -130,7 +130,7 @@ func TestGenerateFastPruningIBDTest(t *testing.T) {
 			}
 		}
 
-		file, err := ioutil.TempFile("", "")
+		file, err := os.CreateTemp("", "")
 		if err != nil {
 			t.Fatal(err)
 		}

testing/integration/config_test.go

@@ -1,7 +1,7 @@
 package integration
 
 import (
-	"io/ioutil"
+	"os"
 	"testing"
 	"time"
 
@@ -63,7 +63,7 @@ func commonConfig() *config.Config {
 }
 
 func randomDirectory(t *testing.T) string {
-	dir, err := ioutil.TempDir("", "integration-test")
+	dir, err := os.MkdirTemp("", "integration-test")
 	if err != nil {
 		t.Fatalf("Error creating temporary directory for test: %+v", err)
 	}