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deprecate ReadSeekCloser in favor of io.ReadSeekCloser

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Go's io package in stdlib now defines this interface, so we can switch
to using that instead.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 019ead86f5)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-11-10 17:15:53 +01:00
parent 86c2280e10
commit e22b555089
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
7 changed files with 22 additions and 21 deletions
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14
blobs.go
View File

@ -142,20 +142,18 @@ type BlobDescriptorServiceFactory interface {
// ReadSeekCloser is the primary reader type for blob data, combining
// io.ReadSeeker with io.Closer.
type ReadSeekCloser interface {
io.ReadSeeker
io.Closer
}
//
// Deprecated: use [io.ReadSeekCloser].
type ReadSeekCloser = io.ReadSeekCloser
// BlobProvider describes operations for getting blob data.
type BlobProvider interface {
// Get returns the entire blob identified by digest along with the descriptor.
Get(ctx context.Context, dgst digest.Digest) ([]byte, error)
// Open provides a ReadSeekCloser to the blob identified by the provided
// descriptor. If the blob is not known to the service, an error will be
// returned.
Open(ctx context.Context, dgst digest.Digest) (ReadSeekCloser, error)
// Open provides an [io.ReadSeekCloser] to the blob identified by the provided
// descriptor. If the blob is not known to the service, an error is returned.
Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error)
}
// BlobServer can serve blobs via http.

3
notifications/listener.go
View File

@ -2,6 +2,7 @@ package notifications
import (
"context"
"io"
"net/http"
"github.com/docker/distribution"
@ -147,7 +148,7 @@ func (bsl *blobServiceListener) Get(ctx context.Context, dgst digest.Digest) ([]
return p, err
}
func (bsl *blobServiceListener) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (bsl *blobServiceListener) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
rc, err := bsl.BlobStore.Open(ctx, dgst)
if err == nil {
if desc, err := bsl.Stat(ctx, dgst); err != nil {

15
registry/client/repository.go
View File

@ -645,7 +645,7 @@ func (bs *blobs) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
return ioutil.ReadAll(reader)
}
func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
ref, err := reference.WithDigest(bs.name, dgst)
if err != nil {
return nil, err
@ -655,13 +655,12 @@ func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.Rea
return nil, err
}
return transport.NewHTTPReadSeeker(bs.client, blobURL,
func(resp *http.Response) error {
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUnknown
}
return HandleErrorResponse(resp)
}), nil
return transport.NewHTTPReadSeeker(bs.client, blobURL, func(resp *http.Response) error {
if resp.StatusCode == http.StatusNotFound {
return distribution.ErrBlobUnknown
}
return HandleErrorResponse(resp)
}), nil
}
func (bs *blobs) ServeBlob(ctx context.Context, w http.ResponseWriter, r *http.Request, dgst digest.Digest) error {

2
registry/proxy/proxyblobstore.go
View File

@ -212,7 +212,7 @@ func (pbs *proxyBlobStore) Mount(ctx context.Context, sourceRepo reference.Named
return distribution.Descriptor{}, distribution.ErrUnsupported
}
func (pbs *proxyBlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (pbs *proxyBlobStore) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
return nil, distribution.ErrUnsupported
}

3
registry/proxy/proxyblobstore_test.go
View File

@ -2,6 +2,7 @@ package proxy
import (
"context"
"io"
"io/ioutil"
"math/rand"
"net/http"
@ -60,7 +61,7 @@ func (sbs statsBlobStore) Resume(ctx context.Context, id string) (distribution.B
return sbs.blobs.Resume(ctx, id)
}
func (sbs statsBlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (sbs statsBlobStore) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
sbsMu.Lock()
sbs.stats["open"]++
sbsMu.Unlock()

3
registry/storage/blobstore.go
View File

@ -2,6 +2,7 @@ package storage
import (
"context"
"io"
"path"
"github.com/docker/distribution"
@ -41,7 +42,7 @@ func (bs *blobStore) Get(ctx context.Context, dgst digest.Digest) ([]byte, error
return p, nil
}
func (bs *blobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (bs *blobStore) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
desc, err := bs.statter.Stat(ctx, dgst)
if err != nil {
return nil, err

3
registry/storage/linkedblobstore.go
View File

@ -3,6 +3,7 @@ package storage
import (
"context"
"fmt"
"io"
"net/http"
"path"
"time"
@ -59,7 +60,7 @@ func (lbs *linkedBlobStore) Get(ctx context.Context, dgst digest.Digest) ([]byte
return lbs.blobStore.Get(ctx, canonical.Digest)
}
func (lbs *linkedBlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
func (lbs *linkedBlobStore) Open(ctx context.Context, dgst digest.Digest) (io.ReadSeekCloser, error) {
canonical, err := lbs.Stat(ctx, dgst) // access check
if err != nil {
return nil, err