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104 lines
2.8 KiB
104 lines
2.8 KiB
4 years ago
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/*
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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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"github.com/pkg/errors"
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"helm.sh/helm/v3/internal/experimental/registry"
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"helm.sh/helm/v3/pkg/cli"
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)
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// options are generic parameters to be provided to the pusher during instantiation.
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//
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// Pushers may or may not ignore these parameters as they are passed in.
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type options struct {
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withProv bool
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registryClient *registry.Client
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}
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// Option allows specifying various settings configurable by the user for overriding the defaults
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// used when performing Push operations with the Pusher.
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type Option func(*options)
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// WithRegistryClient sets the registryClient option.
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func WithRegistryClient(client *registry.Client) Option {
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return func(opts *options) {
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opts.registryClient = client
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}
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}
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// WithProvenance sets the withProv option.
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func WithProvenance(withProv bool) Option {
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return func(opts *options) {
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opts.withProv = withProv
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}
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}
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// Pusher is an interface to support upload to the specified URL.
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type Pusher interface {
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// Push file content by url string
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Push(chartRef, url string, options ...Option) error
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}
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// Constructor is the function for every pusher which creates a specific instance
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// according to the configuration
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type Constructor func(options ...Option) (Pusher, error)
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// Provider represents any pusher and the schemes that it supports.
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type Provider struct {
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Schemes []string
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New Constructor
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}
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// Provides returns true if the given scheme is supported by this Provider.
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func (p Provider) Provides(scheme string) bool {
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for _, i := range p.Schemes {
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if i == scheme {
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return true
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}
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}
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return false
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}
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// Providers is a collection of Provider objects.
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type Providers []Provider
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// ByScheme returns a Provider that handles the given scheme.
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//
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// If no provider handles this scheme, this will return an error.
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func (p Providers) ByScheme(scheme string) (Pusher, error) {
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for _, pp := range p {
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if pp.Provides(scheme) {
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return pp.New()
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}
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}
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return nil, errors.Errorf("scheme %q not supported", scheme)
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}
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var ociProvider = Provider{
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Schemes: []string{"oci"},
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New: NewOCIPusher,
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}
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// All finds all of the registered pushers as a list of Provider instances.
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// Currently, just the built-in pushers are collected.
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func All(settings *cli.EnvSettings) Providers {
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result := Providers{ociProvider}
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return result
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}
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