add Go lint

Signed-off-by: yxxhero <aiopsclub@163.com>

pkg/tmpl/context_funcs.go

@@ -130,7 +130,9 @@ func (c *Context) EnvExec(envs map[string]interface{}, command string, args []in
 		}
 
 		g.Go(func() error {
-			defer stdin.Close()
+			defer func() {
+				_ = stdin.Close()
+			}()
 
 			size := len(input)
 

pkg/tmpl/context_funcs_test.go

@@ -104,6 +104,7 @@ func TestReadFile_PassAbsPath(t *testing.T) {
 
 func TestToYaml_UnsupportedNestedMapKey(t *testing.T) {
 	expected := ``
+	// nolint: unconvert
 	vals := Values(map[string]interface{}{
 		"foo": map[interface{}]interface{}{
 			"bar": "BAR",
@@ -125,6 +126,7 @@ func TestToYaml(t *testing.T) {
 	expected := `foo:
   bar: BAR
 `
+	// nolint: unconvert
 	vals := Values(map[string]interface{}{
 		"foo": map[string]interface{}{
 			"bar": "BAR",
@@ -143,6 +145,7 @@ func TestFromYaml(t *testing.T) {
 	raw := `foo:
   bar: BAR
 `
+	// nolint: unconvert
 	expected := Values(map[string]interface{}{
 		"foo": map[string]interface{}{
 			"bar": "BAR",
@@ -276,7 +279,6 @@ func TestRequired(t *testing.T) {
 
 // TestRequiredEnv tests that RequiredEnv returns an error if the environment variable is not set.
 func TestRequiredEnv(t *testing.T) {
-
 	// test that the environment variable is not set
 	envKey := "HelmFile"
 	envVal, err := RequiredEnv(envKey)
@@ -298,7 +300,6 @@ func TestRequiredEnv(t *testing.T) {
 	envVal, err = RequiredEnv(envKey)
 	require.Nilf(t, err, "Expected no error to be returned when environment variable %s is set to a non-empty string", envKey)
 	require.Equalf(t, expected, envVal, "Expected %s to be returned when environment variable %s is set to a non-empty string", expected, envKey)
-
 }
 
 // TestExec tests that Exec returns the expected output.

pkg/tmpl/context_tmpl.go

@@ -2,8 +2,9 @@ package tmpl
 
 import (
 	"bytes"
-	"github.com/Masterminds/sprig/v3"
 	"text/template"
+
+	"github.com/Masterminds/sprig/v3"
 )
 
 func (c *Context) CreateFuncMap() template.FuncMap {

pkg/tmpl/expand_secret_ref.go

@@ -8,7 +8,7 @@ import (
 	"github.com/variantdev/vals"
 )
 
-//to generate mock run mockgen -source=expand_secret_ref.go -destination=expand_secrets_mock.go -package=tmpl
+// to generate mock run mockgen -source=expand_secret_ref.go -destination=expand_secrets_mock.go -package=tmpl
 type valClient interface {
 	Eval(template map[string]interface{}) (map[string]interface{}, error)
 }

pkg/tmpl/file_renderer_test.go

@@ -2,9 +2,10 @@ package tmpl
 
 import (
 	"fmt"
-	"github.com/helmfile/helmfile/pkg/environment"
 	"reflect"
 	"testing"
+
+	"github.com/helmfile/helmfile/pkg/environment"
 )
 
 var emptyEnvTmplData = map[string]interface{}{
@@ -50,8 +51,7 @@ func TestRenderToBytes_Yaml(t *testing.T) {
 `
 	valuesFile := "values.yaml"
 	r := NewFileRenderer(func(filename string) ([]byte, error) {
-		switch filename {
-		case valuesFile:
+		if filename == valuesFile {
 			return []byte(valuesYamlContent), nil
 		}
 		return nil, fmt.Errorf("unexpected filename: expected=%v, actual=%s", valuesFile, filename)

pkg/tmpl/get_or_nil.go

@@ -28,7 +28,7 @@ func get(path string, varArgs ...interface{}) (interface{}, error) {
 		def = varArgs[0]
 		obj = varArgs[1]
 	default:
-		return nil, fmt.Errorf("unexpected number of args pased to the template function get(path, [def, ]obj): expected 1 or 2, got %d, args was %v", len(varArgs), varArgs)
+		return nil, fmt.Errorf("unexpected number of args passed to the template function get(path, [def, ]obj): expected 1 or 2, got %d, args was %v", len(varArgs), varArgs)
 	}
 
 	if path == "" {

pkg/tmpl/text_renderer.go

@@ -10,6 +10,7 @@ type TextRenderer interface {
 	RenderTemplateText(text string) (string, error)
 }
 
+// nolint: golint
 func NewTextRenderer(readFile func(filename string) ([]byte, error), basePath string, data interface{}) *templateTextRenderer {
 	return &templateTextRenderer{
 		ReadText: readFile,