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chart_v3.go
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chart_v3.go
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package helmutil
import (
"encoding/json"
"fmt"
"io"
"helm.sh/helm/v3/pkg/chart"
"helm.sh/helm/v3/pkg/chart/loader"
)
// ChartV3 implements Chart in Helm v3.
type ChartV3 struct {
chart *chart.Chart
}
func (c ChartV3) Name() string {
return c.chart.Name()
}
func (c ChartV3) Version() string {
if c.chart.Metadata == nil {
return ""
}
return c.chart.Metadata.Version
}
func (c ChartV3) Metadata() ChartMetadata {
return &chartMetadataV3{meta: c.chart.Metadata}
}
func loadChartV3(fpath string) (ChartV3, error) {
ch, err := loader.LoadFile(fpath)
if err != nil {
return ChartV3{}, fmt.Errorf("failed to load chart file: %s", err.Error())
}
return ChartV3{chart: ch}, nil
}
func loadArchiveV3(r io.Reader) (ChartV3, error) {
ch, err := loader.LoadArchive(r)
if err != nil {
return ChartV3{}, fmt.Errorf("failed to load chart archive: %s", err.Error())
}
return ChartV3{chart: ch}, nil
}
type chartMetadataV3 struct {
meta *chart.Metadata
}
func (c *chartMetadataV3) MarshalJSON() ([]byte, error) {
if c.meta == nil {
return nil, nil
}
return json.Marshal(c.meta)
}
func (c *chartMetadataV3) UnmarshalJSON(b []byte) error {
if c.meta == nil {
c.meta = &chart.Metadata{}
}
return json.Unmarshal(b, c.meta)
}
func (c *chartMetadataV3) Value() interface{} {
return c.meta
}
func newChartMetadataV3() *chartMetadataV3 {
return &chartMetadataV3{meta: &chart.Metadata{}}
}