mirror of https://github.com/helm/helm
83 lines
2.7 KiB
83 lines
2.7 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package registry // import "helm.sh/helm/v3/internal/experimental/registry"
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"strings"
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"github.com/sirupsen/logrus"
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orascontext "oras.land/oras-go/pkg/context"
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"oras.land/oras-go/pkg/registry"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chart/loader"
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)
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// IsOCI determines whether or not a URL is to be treated as an OCI URL
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func IsOCI(url string) bool {
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return strings.HasPrefix(url, fmt.Sprintf("%s://", OCIScheme))
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}
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// extractChartMeta is used to extract a chart metadata from a byte array
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func extractChartMeta(chartData []byte) (*chart.Metadata, error) {
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ch, err := loader.LoadArchive(bytes.NewReader(chartData))
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if err != nil {
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return nil, err
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}
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return ch.Metadata, nil
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}
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// ctx retrieves a fresh context.
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// disable verbose logging coming from ORAS (unless debug is enabled)
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func ctx(out io.Writer, debug bool) context.Context {
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if !debug {
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return orascontext.Background()
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}
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ctx := orascontext.WithLoggerFromWriter(context.Background(), out)
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orascontext.GetLogger(ctx).Logger.SetLevel(logrus.DebugLevel)
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return ctx
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}
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// parseReference will parse and validate the reference, and clean tags when
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// applicable tags are only cleaned when plus (+) signs are present, and are
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// converted to underscores (_) before pushing
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// See https://github.com/helm/helm/issues/10166
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func parseReference(raw string) (registry.Reference, error) {
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// The sole possible reference modification is replacing plus (+) signs
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// present in tags with underscores (_). To do this properly, we first
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// need to identify a tag, and then pass it on to the reference parser
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// NOTE: Passing immediately to the reference parser will fail since (+)
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// signs are an invalid tag character, and simply replacing all plus (+)
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// occurrences could invalidate other portions of the URI
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parts := strings.Split(raw, ":")
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if len(parts) > 1 && !strings.Contains(parts[len(parts)-1], "/") {
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tag := parts[len(parts)-1]
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if tag != "" {
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// Replace any plus (+) signs with known underscore (_) conversion
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newTag := strings.ReplaceAll(tag, "+", "_")
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raw = strings.ReplaceAll(raw, tag, newTag)
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}
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}
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return registry.ParseReference(raw)
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}
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