77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
/*
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Copyright The containerd 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 archive
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import (
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"context"
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"io"
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transferapi "github.com/containerd/containerd/api/types/transfer"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/pkg/streaming"
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tstreaming "github.com/containerd/containerd/pkg/transfer/streaming"
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"github.com/containerd/typeurl"
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)
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// NewImageImportStream returns a image importer via tar stream
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// TODO: Add import options
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func NewImageImportStream(stream io.Reader) *ImageImportStream {
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return &ImageImportStream{
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stream: stream,
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}
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}
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type ImageImportStream struct {
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stream io.Reader
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}
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func (iis *ImageImportStream) ImportStream(context.Context) (io.Reader, error) {
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return iis.stream, nil
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}
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func (iis *ImageImportStream) MarshalAny(ctx context.Context, sm streaming.StreamCreator) (typeurl.Any, error) {
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sid := tstreaming.GenerateID("import")
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stream, err := sm.Create(ctx, sid)
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if err != nil {
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return nil, err
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}
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tstreaming.SendStream(ctx, iis.stream, stream)
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s := &transferapi.ImageImportStream{
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Stream: sid,
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}
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return typeurl.MarshalAny(s)
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}
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func (iis *ImageImportStream) UnmarshalAny(ctx context.Context, sm streaming.StreamGetter, any typeurl.Any) error {
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var s transferapi.ImageImportStream
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if err := typeurl.UnmarshalTo(any, &s); err != nil {
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return err
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}
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stream, err := sm.Get(ctx, s.Stream)
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if err != nil {
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log.G(ctx).WithError(err).WithField("stream", s.Stream).Debug("failed to get import stream")
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return err
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}
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iis.stream = tstreaming.ReceiveStream(ctx, stream)
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return nil
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}
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