feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

vendor/helm.sh/helm/v3/pkg/action/show.go

@@ -28,6 +28,7 @@ import (
 	"helm.sh/helm/v3/pkg/chart"
 	"helm.sh/helm/v3/pkg/chart/loader"
 	"helm.sh/helm/v3/pkg/chartutil"
+	"helm.sh/helm/v3/pkg/registry"
 )
 
 // ShowOutputFormat is the format of the output of `helm show`
@@ -82,6 +83,11 @@ func NewShowWithConfig(output ShowOutputFormat, cfg *Configuration) *Show {
 	return sh
 }
 
+// SetRegistryClient sets the registry client to use when pulling a chart from a registry.
+func (s *Show) SetRegistryClient(client *registry.Client) {
+	s.ChartPathOptions.registryClient = client
+}
+
 // Run executes 'helm show' against the given release.
 func (s *Show) Run(chartpath string) (string, error) {
 	if s.chart == nil {
@@ -147,6 +153,9 @@ func (s *Show) Run(chartpath string) (string, error) {
 func findReadme(files []*chart.File) (file *chart.File) {
 	for _, file := range files {
 		for _, n := range readmeFileNames {
+			if file == nil {
+				continue
+			}
 			if strings.EqualFold(file.Name, n) {
 				return file
 			}