mirror of https://github.com/harness/drone.git
112 lines
3.5 KiB
Go
112 lines
3.5 KiB
Go
// Source: https://github.com/goharbor/harbor
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// Copyright 2016 Project Harbor Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package adapter
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import (
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"context"
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"errors"
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"fmt"
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"io"
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store2 "github.com/harness/gitness/app/store"
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"github.com/harness/gitness/registry/app/manifest"
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"github.com/harness/gitness/registry/types"
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"github.com/harness/gitness/secret"
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)
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// const definition.
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const (
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MaxConcurrency = 100
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)
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var registry = map[string]Factory{}
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var registryKeys = []string{}
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// Factory creates a specific Adapter according to the params.
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type Factory interface {
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Create(
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ctx context.Context, spacePathStore store2.SpacePathStore, record types.UpstreamProxy, service secret.Service,
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) (Adapter, error)
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}
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// Adapter interface defines the capabilities of registry.
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type Adapter interface {
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// HealthCheck checks health status of registry.
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HealthCheck() (string, error)
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}
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// ArtifactRegistry defines the capabilities that an artifact registry should have.
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type ArtifactRegistry interface {
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ManifestExist(repository, reference string) (exist bool, desc *manifest.Descriptor, err error)
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PullManifest(
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repository, reference string,
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accepttedMediaTypes ...string,
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) (manifest manifest.Manifest, digest string, err error)
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PushManifest(repository, reference, mediaType string, payload []byte) (string, error)
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DeleteManifest(
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repository, reference string,
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) error // the "reference" can be "tag" or "digest", the function needs to handle both
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BlobExist(repository, digest string) (exist bool, err error)
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PullBlob(repository, digest string) (size int64, blob io.ReadCloser, err error)
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PullBlobChunk(repository, digest string, blobSize, start, end int64) (size int64, blob io.ReadCloser, err error)
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PushBlobChunk(
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repository, digest string,
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size int64,
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chunk io.Reader,
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start, end int64,
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location string,
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) (nextUploadLocation string, endRange int64, err error)
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PushBlob(repository, digest string, size int64, blob io.Reader) error
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MountBlob(srcRepository, digest, dstRepository string) (err error)
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CanBeMount(
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digest string,
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) (mount bool, repository string, err error) // check whether the blob can be mounted from the remote registry
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DeleteTag(repository, tag string) error
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ListTags(repository string) (tags []string, err error)
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}
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// RegisterFactory registers one adapter factory to the registry.
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func RegisterFactory(t string, factory Factory) error {
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if len(t) == 0 {
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return errors.New("invalid type")
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}
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if factory == nil {
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return errors.New("empty adapter factory")
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}
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if _, exist := registry[t]; exist {
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return fmt.Errorf("adapter factory for %s already exists", t)
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}
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registry[t] = factory
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registryKeys = append(registryKeys, t)
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return nil
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}
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// GetFactory gets the adapter factory by the specified name.
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func GetFactory(t string) (Factory, error) {
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factory, exist := registry[t]
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if !exist {
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return nil, fmt.Errorf("adapter factory for %s not found", t)
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}
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return factory, nil
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}
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// ListRegisteredAdapterTypes lists the registered Adapter type.
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func ListRegisteredAdapterTypes() []string {
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return registryKeys
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}
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