distribution/storage/registry.go

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package storage
import "github.com/docker/distribution/storagedriver"
// registry is the top-level implementation of Registry for use in the storage
// package. All instances should descend from this object.
type registry struct {
driver storagedriver.StorageDriver
pm *pathMapper
blobStore *blobStore
}
// NewRegistryWithDriver creates a new registry instance from the provided
// driver. The resulting registry may be shared by multiple goroutines but is
// cheap to allocate.
func NewRegistryWithDriver(driver storagedriver.StorageDriver) Registry {
bs := &blobStore{}
reg := &registry{
driver: driver,
blobStore: bs,
// TODO(sday): This should be configurable.
pm: defaultPathMapper,
}
reg.blobStore.registry = reg
return reg
}
// Repository returns an instance of the repository tied to the registry.
// Instances should not be shared between goroutines but are cheap to
// allocate. In general, they should be request scoped.
func (reg *registry) Repository(name string) Repository {
return &repository{
registry: reg,
name: name,
}
}
// repository provides name-scoped access to various services.
type repository struct {
*registry
name string
}
// Name returns the name of the repository.
func (repo *repository) Name() string {
return repo.name
}
// Manifests returns an instance of ManifestService. Instantiation is cheap and
// may be context sensitive in the future. The instance should be used similar
// to a request local.
func (repo *repository) Manifests() ManifestService {
return &manifestStore{
repository: repo,
revisionStore: &revisionStore{
repository: repo,
},
tagStore: &tagStore{
repository: repo,
},
}
}
// Layers returns an instance of the LayerService. Instantiation is cheap and
// may be context sensitive in the future. The instance should be used similar
// to a request local.
func (repo *repository) Layers() LayerService {
return &layerStore{
repository: repo,
}
}