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load.go
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load.go
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package pkg
import (
"context"
"net/http"
"github.com/pkg/errors"
"helm.sh/helm/v3/pkg/chart/loader"
"helm.sh/helm/v3/pkg/getter"
"helm.sh/helm/v3/pkg/repo"
)
var (
getters = getter.Providers{
getter.Provider{
Schemes: []string{"http", "https"},
New: getter.NewHTTPGetter,
},
}
)
// loadChartFiles fetches Helm chart values file by URL
func loadChartFiles(ctx context.Context, repoURL, chart, version string) (*loader.BufferedFile, error) {
url, err := repo.FindChartInRepoURL(repoURL, chart, version, "", "", "", getters)
if err != nil {
return nil, errors.Wrap(err, "cannot find Chart URL")
}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
return nil, err
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, errors.Wrapf(err, "cannot fetch Chart from remote URL:%s", url)
}
//nolint:errcheck
defer resp.Body.Close()
files, err := loader.LoadArchiveFiles(resp.Body)
if err != nil {
return nil, errors.Wrap(err, "cannot load Chart files")
}
var valuesFile *loader.BufferedFile
for _, f := range files {
switch f.Name {
case "values.yaml", "values.yml":
valuesFile = f
break
default:
continue
}
}
if valuesFile == nil {
return nil, errors.New("cannot find values.yml nor values.yaml file in the Chart")
}
return valuesFile, nil
}