5d029fb807
The method (Registry).Repository may now return an error. This is too allow certain implementationt to validate the name or opt to not return a repository under certain conditions. In conjunction with this change, error declarations have been moved into a single file in the distribution package. Several error declarations that had remained in the storage package have been moved into distribution, as well. The declarations for Layer and LayerUpload have also been moved into the main registry file, as a result. Signed-off-by: Stephen J Day <stephen.day@docker.com>
109 lines
3 KiB
Go
109 lines
3 KiB
Go
package distribution
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import (
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"fmt"
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"strings"
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"github.com/docker/distribution/digest"
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"github.com/docker/distribution/manifest"
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)
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var (
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// ErrLayerExists returned when layer already exists
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ErrLayerExists = fmt.Errorf("layer exists")
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// ErrLayerTarSumVersionUnsupported when tarsum is unsupported version.
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ErrLayerTarSumVersionUnsupported = fmt.Errorf("unsupported tarsum version")
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// ErrLayerUploadUnknown returned when upload is not found.
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ErrLayerUploadUnknown = fmt.Errorf("layer upload unknown")
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// ErrLayerClosed returned when an operation is attempted on a closed
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// Layer or LayerUpload.
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ErrLayerClosed = fmt.Errorf("layer closed")
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)
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// ErrRepositoryUnknown is returned if the named repository is not known by
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// the registry.
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type ErrRepositoryUnknown struct {
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Name string
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}
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func (err ErrRepositoryUnknown) Error() string {
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return fmt.Sprintf("unknown respository name=%s", err.Name)
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}
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// ErrRepositoryNameInvalid should be used to denote an invalid repository
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// name. Reason may set, indicating the cause of invalidity.
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type ErrRepositoryNameInvalid struct {
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Name string
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Reason error
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}
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func (err ErrRepositoryNameInvalid) Error() string {
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return fmt.Sprintf("repository name %q invalid: %v", err.Name, err.Reason)
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}
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// ErrManifestUnknown is returned if the manifest is not known by the
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// registry.
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type ErrManifestUnknown struct {
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Name string
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Tag string
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}
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func (err ErrManifestUnknown) Error() string {
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return fmt.Sprintf("unknown manifest name=%s tag=%s", err.Name, err.Tag)
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}
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// ErrUnknownManifestRevision is returned when a manifest cannot be found by
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// revision within a repository.
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type ErrUnknownManifestRevision struct {
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Name string
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Revision digest.Digest
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}
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func (err ErrUnknownManifestRevision) Error() string {
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return fmt.Sprintf("unknown manifest name=%s revision=%s", err.Name, err.Revision)
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}
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// ErrManifestUnverified is returned when the registry is unable to verify
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// the manifest.
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type ErrManifestUnverified struct{}
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func (ErrManifestUnverified) Error() string {
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return fmt.Sprintf("unverified manifest")
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}
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// ErrManifestVerification provides a type to collect errors encountered
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// during manifest verification. Currently, it accepts errors of all types,
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// but it may be narrowed to those involving manifest verification.
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type ErrManifestVerification []error
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func (errs ErrManifestVerification) Error() string {
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var parts []string
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for _, err := range errs {
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parts = append(parts, err.Error())
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}
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return fmt.Sprintf("errors verifying manifest: %v", strings.Join(parts, ","))
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}
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// ErrUnknownLayer returned when layer cannot be found.
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type ErrUnknownLayer struct {
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FSLayer manifest.FSLayer
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}
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func (err ErrUnknownLayer) Error() string {
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return fmt.Sprintf("unknown layer %v", err.FSLayer.BlobSum)
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}
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// ErrLayerInvalidDigest returned when tarsum check fails.
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type ErrLayerInvalidDigest struct {
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Digest digest.Digest
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Reason error
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}
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func (err ErrLayerInvalidDigest) Error() string {
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return fmt.Sprintf("invalid digest for referenced layer: %v, %v",
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err.Digest, err.Reason)
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}
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