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107 lines
2.4 KiB
107 lines
2.4 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 pusher
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"strings"
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"github.com/pkg/errors"
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"helm.sh/helm/v3/pkg/chart/loader"
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"helm.sh/helm/v3/pkg/registry"
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)
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// OCIPusher is the default OCI backend handler
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type OCIPusher struct {
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opts options
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}
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// Push performs a Push from repo.Pusher.
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func (pusher *OCIPusher) Push(chartRef, href string, options ...Option) error {
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for _, opt := range options {
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opt(&pusher.opts)
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}
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return pusher.push(chartRef, href)
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}
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func (pusher *OCIPusher) push(chartRef, href string) error {
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stat, err := os.Stat(chartRef)
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if err != nil {
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if os.IsNotExist(err) {
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return errors.Errorf("%s: no such file", chartRef)
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}
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return err
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}
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if stat.IsDir() {
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return errors.New("cannot push directory, must provide chart archive (.tgz)")
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}
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meta, err := loader.Load(chartRef)
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if err != nil {
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return err
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}
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client := pusher.opts.registryClient
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chartBytes, err := ioutil.ReadFile(chartRef)
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if err != nil {
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return err
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}
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var pushOpts []registry.PushOption
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provRef := fmt.Sprintf("%s.prov", chartRef)
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if _, err := os.Stat(provRef); err == nil {
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provBytes, err := ioutil.ReadFile(provRef)
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if err != nil {
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return err
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}
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pushOpts = append(pushOpts, registry.PushOptProvData(provBytes))
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}
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ref := fmt.Sprintf("%s:%s",
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path.Join(strings.TrimPrefix(href, fmt.Sprintf("%s://", registry.OCIScheme)), meta.Metadata.Name),
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meta.Metadata.Version)
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_, err = client.Push(chartBytes, ref, pushOpts...)
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return err
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}
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// NewOCIPusher constructs a valid OCI client as a Pusher
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func NewOCIPusher(ops ...Option) (Pusher, error) {
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registryClient, err := registry.NewClient(
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registry.ClientOptEnableCache(true),
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)
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if err != nil {
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return nil, err
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}
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client := OCIPusher{
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opts: options{
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registryClient: registryClient,
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},
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}
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for _, opt := range ops {
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opt(&client.opts)
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}
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return &client, nil
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}
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