7c14cbc091
The implementations for the storage of metadata have been merged into a single metadata package where they can share storage primitives and techniques. The is a requisite for the addition of namespaces, which will require a coordinated layout for records to be organized by namespace. Signed-off-by: Stephen J Day <stephen.day@docker.com>
89 lines
1.9 KiB
Go
89 lines
1.9 KiB
Go
package images
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import (
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imagesapi "github.com/containerd/containerd/api/services/images"
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"github.com/containerd/containerd/api/types/descriptor"
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"github.com/containerd/containerd/images"
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"github.com/containerd/containerd/metadata"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/pkg/errors"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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)
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func imagesToProto(images []images.Image) []imagesapi.Image {
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var imagespb []imagesapi.Image
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for _, image := range images {
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imagespb = append(imagespb, imageToProto(&image))
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}
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return imagespb
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}
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func imagesFromProto(imagespb []imagesapi.Image) []images.Image {
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var images []images.Image
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for _, image := range imagespb {
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images = append(images, imageFromProto(&image))
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}
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return images
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}
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func imageToProto(image *images.Image) imagesapi.Image {
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return imagesapi.Image{
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Name: image.Name,
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Target: descToProto(&image.Target),
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}
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}
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func imageFromProto(imagepb *imagesapi.Image) images.Image {
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return images.Image{
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Name: imagepb.Name,
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Target: descFromProto(&imagepb.Target),
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}
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}
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func descFromProto(desc *descriptor.Descriptor) ocispec.Descriptor {
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return ocispec.Descriptor{
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MediaType: desc.MediaType,
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Size: desc.Size_,
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Digest: desc.Digest,
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}
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}
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func descToProto(desc *ocispec.Descriptor) descriptor.Descriptor {
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return descriptor.Descriptor{
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MediaType: desc.MediaType,
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Size_: desc.Size,
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Digest: desc.Digest,
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}
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}
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func rewriteGRPCError(err error) error {
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if err == nil {
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return err
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}
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switch grpc.Code(errors.Cause(err)) {
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case codes.AlreadyExists:
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return metadata.ErrExists
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case codes.NotFound:
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return metadata.ErrNotFound
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}
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return err
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}
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func mapGRPCError(err error, id string) error {
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switch {
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case metadata.IsNotFound(err):
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return grpc.Errorf(codes.NotFound, "image %v not found", id)
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case metadata.IsExists(err):
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return grpc.Errorf(codes.AlreadyExists, "image %v already exists", id)
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}
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return err
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}
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