replace deprecated ioutil methods

cmd/root.go

@@ -19,7 +19,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 
 	"github.com/pulumi/crd2pulumi/pkg/codegen"
@@ -29,7 +28,7 @@ import (
 // Version specifies the crd2pulumi version. It should be set by the linker via LDFLAGS. This defaults to dev
 var Version = "dev"
 
-const long = `crd2pulumi is a CLI tool that generates typed Kubernetes 
+const long = `crd2pulumi is a CLI tool that generates typed Kubernetes
 CustomResources to use in Pulumi programs, based on a
 CustomResourceDefinition YAML schema.`
 
@@ -92,7 +91,7 @@ func Execute() error {
 				}
 				var err error
 				if shouldUseStdin {
-					err = codegen.Generate(cs, []io.ReadCloser{ioutil.NopCloser(bytes.NewBuffer(stdinData))})
+					err = codegen.Generate(cs, []io.ReadCloser{io.NopCloser(bytes.NewBuffer(stdinData))})
 				} else {
 					err = codegen.GenerateFromFiles(cs, args)
 				}

tests/crds_test.go

@@ -17,7 +17,6 @@ package tests
 import (
 	"fmt"
 	"io/fs"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -32,7 +31,7 @@ const gkeManagedCertsUrl = "https://raw.githubusercontent.com/GoogleCloudPlatfor
 
 // execCrd2Pulumi runs the crd2pulumi binary in a temporary directory
 func execCrd2Pulumi(t *testing.T, lang, path string, additionalValidation func(t *testing.T, path string)) {
-	tmpdir, err := ioutil.TempDir("", "crd2pulumi_test")
+	tmpdir, err := os.MkdirTemp("", "crd2pulumi_test")
 	assert.Nil(t, err, "expected to create a temp dir for the CRD output")
 	t.Cleanup(func() {
 		t.Logf("removing temp dir %q for %s test", tmpdir, lang)
@@ -98,7 +97,7 @@ func TestCRDsWithUnderscore(t *testing.T) {
 		// Ensure inputs are camelCased.
 		filename := filepath.Join(path, "pulumi_crds", "juice", "v1alpha1", "_inputs.py")
 		t.Logf("validating underscored field names in %s", filename)
-		pythonInputs, err := ioutil.ReadFile(filename)
+		pythonInputs, err := os.ReadFile(filename)
 		if err != nil {
 			t.Fatalf("expected to read generated Python code: %s", err)
 		}
@@ -108,7 +107,7 @@ func TestCRDsWithUnderscore(t *testing.T) {
 		// Ensure outputs are camelCased.
 		filename = filepath.Join(path, "pulumi_crds", "juice", "v1alpha1", "outputs.py")
 		t.Logf("validating underscored field names in %s", filename)
-		pythonInputs, err = ioutil.ReadFile(filename)
+		pythonInputs, err = os.ReadFile(filename)
 		if err != nil {
 			t.Fatalf("expected to read generated Python code: %s", err)
 		}

tests/schema_test.go

@@ -18,7 +18,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -51,7 +50,7 @@ func UnmarshalSchemas(yamlPath string) (map[string]any, error) {
 }
 
 func UnmarshalTypeSpecJSON(jsonPath string) (map[string]pschema.TypeSpec, error) {
-	jsonFile, err := ioutil.ReadFile(jsonPath)
+	jsonFile, err := os.ReadFile(jsonPath)
 	if err != nil {
 		return nil, fmt.Errorf("could not read file %s: %w", jsonPath, err)
 	}