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helm/pkg/chartutil/chartfile.go

40 lines
921 B

package chartutil
import (
"io/ioutil"
"github.com/ghodss/yaml"
"k8s.io/helm/pkg/proto/hapi/chart"
)
// UnmarshalChartfile takes raw Chart.yaml data and unmarshals it.
func UnmarshalChartfile(data []byte) (*chart.Metadata, error) {
y := &chart.Metadata{}
err := yaml.Unmarshal(data, y)
if err != nil {
return nil, err
}
return y, nil
}
// LoadChartfile loads a Chart.yaml file into a *chart.Metadata.
func LoadChartfile(filename string) (*chart.Metadata, error) {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return UnmarshalChartfile(b)
}
// SaveChartfile saves the given metadata as a Chart.yaml file at the given path.
//
// 'filename' should be the complete path and filename ('foo/Chart.yaml')
func SaveChartfile(filename string, cf *chart.Metadata) error {
out, err := yaml.Marshal(cf)
if err != nil {
return err
}
return ioutil.WriteFile(filename, out, 0755)
}