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/repo/index.go

@@ -18,7 +18,7 @@ package repo
 
 import (
 	"bytes"
-	"io/ioutil"
+	"encoding/json"
 	"log"
 	"os"
 	"path"
@@ -104,7 +104,7 @@ func NewIndexFile() *IndexFile {
 
 // LoadIndexFile takes a file at the given path and returns an IndexFile object
 func LoadIndexFile(path string) (*IndexFile, error) {
-	b, err := ioutil.ReadFile(path)
+	b, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}
@@ -233,6 +233,18 @@ func (i IndexFile) WriteFile(dest string, mode os.FileMode) error {
 	return fileutil.AtomicWriteFile(dest, bytes.NewReader(b), mode)
 }
 
+// WriteJSONFile writes an index file in JSON format to the given destination
+// path.
+//
+// The mode on the file is set to 'mode'.
+func (i IndexFile) WriteJSONFile(dest string, mode os.FileMode) error {
+	b, err := json.MarshalIndent(i, "", "  ")
+	if err != nil {
+		return err
+	}
+	return fileutil.AtomicWriteFile(dest, bytes.NewReader(b), mode)
+}
+
 // Merge merges the given index file into this index.
 //
 // This merges by name and version.
@@ -337,7 +349,7 @@ func loadIndex(data []byte, source string) (*IndexFile, error) {
 		return i, ErrEmptyIndexYaml
 	}
 
-	if err := yaml.UnmarshalStrict(data, i); err != nil {
+	if err := jsonOrYamlUnmarshal(data, i); err != nil {
 		return i, err
 	}
 
@@ -347,6 +359,10 @@ func loadIndex(data []byte, source string) (*IndexFile, error) {
 				log.Printf("skipping loading invalid entry for chart %q from %s: empty entry", name, source)
 				continue
 			}
+			// When metadata section missing, initialize with no data
+			if cvs[idx].Metadata == nil {
+				cvs[idx].Metadata = &chart.Metadata{}
+			}
 			if cvs[idx].APIVersion == "" {
 				cvs[idx].APIVersion = chart.APIVersionV1
 			}
@@ -362,3 +378,17 @@ func loadIndex(data []byte, source string) (*IndexFile, error) {
 	}
 	return i, nil
 }
+
+// jsonOrYamlUnmarshal unmarshals the given byte slice containing JSON or YAML
+// into the provided interface.
+//
+// It automatically detects whether the data is in JSON or YAML format by
+// checking its validity as JSON. If the data is valid JSON, it will use the
+// `encoding/json` package to unmarshal it. Otherwise, it will use the
+// `sigs.k8s.io/yaml` package to unmarshal the YAML data.
+func jsonOrYamlUnmarshal(b []byte, i interface{}) error {
+	if json.Valid(b) {
+		return json.Unmarshal(b, i)
+	}
+	return yaml.UnmarshalStrict(b, i)
+}