Replace deprecated io/util references (#193)

Signed-off-by: Din Music <din.music@din-cloud.com>

cmd/meta_clusters.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 
 	"github.com/MusicDin/kubitect/pkg/app"
@@ -76,8 +76,7 @@ func clusters(ctx app.AppContext, local bool) (MetaClusters, error) {
 		path = ctx.ClustersDir()
 	}
 
-	files, err := ioutil.ReadDir(path)
-
+	files, err := os.ReadDir(path)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read clusters directory: %v", err)
 	}

embed/embed.go

@@ -3,7 +3,6 @@ package embed
 import (
 	"embed"
 	"io/fs"
-	"io/ioutil"
 	"os"
 	"path"
 )
@@ -93,7 +92,7 @@ func MirrorResource(resPath, dstPath string) error {
 
 		resDstPath := path.Join(dstPath, resPath)
 		os.MkdirAll(path.Dir(resDstPath), os.ModePerm)
-		return ioutil.WriteFile(resDstPath, content, os.ModePerm)
+		return os.WriteFile(resDstPath, content, os.ModePerm)
 	}
 
 	mirrorDir := func(fPath string, f fs.DirEntry, err error) error {
@@ -112,7 +111,7 @@ func MirrorResource(resPath, dstPath string) error {
 			return err
 		}
 
-		return ioutil.WriteFile(resDstPath, content, os.ModePerm)
+		return os.WriteFile(resDstPath, content, os.ModePerm)
 	}
 
 	return fs.WalkDir(efs, resPath, mirrorDir)

pkg/cluster/cluster_test.go

@@ -1,7 +1,6 @@
 package cluster
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
@@ -99,7 +98,7 @@ func TestSync_InvalidInfraConfig(t *testing.T) {
 	err := os.MkdirAll(path.Dir(c.InfrastructureConfigPath()), 0777)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(c.InfrastructureConfigPath(), []byte(cfg), 0777)
+	err = os.WriteFile(c.InfrastructureConfigPath(), []byte(cfg), 0777)
 	require.NoError(t, err)
 
 	assert.ErrorContains(t, c.Sync(), "infrastructure file (produced by Terraform) is invalid")

pkg/cluster/utils_test.go

@@ -1,7 +1,6 @@
 package cluster
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
@@ -34,7 +33,7 @@ func WriteConfigMockFile(t *testing.T) string {
 	cfg := "value: test"
 	cfgPath := path.Join(t.TempDir(), "cfg.yaml")
 
-	err := ioutil.WriteFile(cfgPath, []byte(cfg), os.ModePerm)
+	err := os.WriteFile(cfgPath, []byte(cfg), os.ModePerm)
 	assert.NoError(t, err)
 
 	return cfgPath

pkg/tools/virtualenv/virtualenv_test.go

@@ -1,7 +1,6 @@
 package virtualenv
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
@@ -16,7 +15,7 @@ func MockReqFile(t *testing.T) string {
 	reqFile := "netaddr==0.7.19"
 	reqPath := path.Join(t.TempDir(), "requirements.txt")
 
-	err := ioutil.WriteFile(reqPath, []byte(reqFile), os.ModePerm)
+	err := os.WriteFile(reqPath, []byte(reqFile), os.ModePerm)
 	require.NoError(t, err)
 
 	return reqPath

pkg/utils/file/file_test.go

@@ -1,7 +1,6 @@
 package file
 
 import (
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@@ -21,7 +20,7 @@ func tmpFile(t *testing.T, name string, content ...string) string {
 	fPath := path.Join(t.TempDir(), name)
 	fData := strings.Join(content, " ")
 
-	err := ioutil.WriteFile(fPath, []byte(fData), os.ModePerm)
+	err := os.WriteFile(fPath, []byte(fData), os.ModePerm)
 	require.NoErrorf(t, err, "failed creating tmp file (%s): %v", name, err)
 
 	return fPath
@@ -107,7 +106,7 @@ func TestWriteYaml(t *testing.T) {
 	err := WriteYaml(T{7}, fPath, os.ModePerm)
 	require.NoError(t, err)
 
-	f, err := ioutil.ReadFile(fPath)
+	f, err := os.ReadFile(fPath)
 	assert.Equal(t, "value: 7\n", string(f))
 }
 

pkg/utils/keygen/keygen.go

@@ -6,7 +6,6 @@ import (
 	"crypto/x509"
 	"encoding/pem"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 
@@ -27,7 +26,7 @@ type (
 // Note that the directory to which the key is
 // written must exist.
 func (k key) Write(path string) error {
-	return ioutil.WriteFile(path, k.value, 0600)
+	return os.WriteFile(path, k.value, 0600)
 }
 
 type (
@@ -93,14 +92,14 @@ func ReadKeyPair(dir, keyName string) (KeyPair, error) {
 	var pair keyPair
 
 	privKeyPath := path.Join(dir, keyName)
-	pair.private.value, err = ioutil.ReadFile(privKeyPath)
+	pair.private.value, err = os.ReadFile(privKeyPath)
 	if err != nil {
 		return nil, NewKeyFileError("private", keyName, err)
 	}
 
 	pubKeyName := keyName + ".pub"
 	pubKeyPath := path.Join(dir, pubKeyName)
-	pair.public.value, err = ioutil.ReadFile(pubKeyPath)
+	pair.public.value, err = os.ReadFile(pubKeyPath)
 	if err != nil {
 		return nil, NewKeyFileError("public", keyName+".pub", err)
 	}

pkg/utils/keygen/keygen_test.go

@@ -2,7 +2,6 @@ package keygen
 
 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
@@ -20,7 +19,7 @@ func TestKeyWrite(t *testing.T) {
 	err := key.Write(keyPath)
 	require.NoError(t, err)
 
-	keyFile, err := ioutil.ReadFile(keyPath)
+	keyFile, err := os.ReadFile(keyPath)
 	require.NoError(t, err)
 	assert.Equal(t, "test", string(keyFile))
 }
@@ -134,12 +133,12 @@ func TestKeyPair_Write(t *testing.T) {
 	require.NoError(t, kp.Write(tmpDir, keyName))
 
 	privKeyPath := path.Join(tmpDir, keyName)
-	privKey, err := ioutil.ReadFile(privKeyPath)
+	privKey, err := os.ReadFile(privKeyPath)
 	require.NoError(t, err)
 	require.Contains(t, string(privKey), "RSA PRIVATE KEY")
 
 	pubKeyPath := path.Join(tmpDir, keyName+".pub")
-	pubKey, err := ioutil.ReadFile(pubKeyPath)
+	pubKey, err := os.ReadFile(pubKeyPath)
 	require.NoError(t, err)
 	assert.Contains(t, string(pubKey), "ssh-rsa")
 }

pkg/utils/template/templates.go

@@ -2,7 +2,6 @@ package template
 
 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@@ -106,7 +105,7 @@ func write(dstPath string, bytes []byte) error {
 		return err
 	}
 
-	return ioutil.WriteFile(dstPath, bytes, 0644)
+	return os.WriteFile(dstPath, bytes, 0644)
 }
 
 // TrimTemplate trims alls leading and trailing spaces from each line