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vendor containers/image

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Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit is contained in:
Antonio Murdaca
2016-10-06 17:48:02 +02:00
parent f69a78fa0b
commit dc1e560d4e
10 changed files with 204 additions and 45 deletions
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48
vendor/github.com/containers/image/docker/docker_image_src.go generated vendored
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@@ -15,12 +15,13 @@ import (
"github.com/containers/image/types"
)
type errFetchManifest struct {
// ErrFetchManifest provides the error when fetching the manifest fails
type ErrFetchManifest struct {
statusCode int
body []byte
}
func (e errFetchManifest) Error() string {
func (e ErrFetchManifest) Error() string {
return fmt.Sprintf("error fetching manifest: status code: %d, body: %s", e.statusCode, string(e.body))
}
@@ -83,6 +84,31 @@ func (s *dockerImageSource) GetManifest() ([]byte, string, error) {
return s.cachedManifest, s.cachedManifestMIMEType, nil
}
func (s *dockerImageSource) fetchManifest(tagOrDigest string) ([]byte, string, error) {
url := fmt.Sprintf(manifestURL, s.ref.ref.RemoteName(), tagOrDigest)
headers := make(map[string][]string)
headers["Accept"] = s.requestedManifestMIMETypes
res, err := s.c.makeRequest("GET", url, headers, nil)
if err != nil {
return nil, "", err
}
defer res.Body.Close()
manblob, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, "", err
}
if res.StatusCode != http.StatusOK {
return nil, "", ErrFetchManifest{res.StatusCode, manblob}
}
return manblob, simplifyContentType(res.Header.Get("Content-Type")), nil
}
// GetTargetManifest returns an image's manifest given a digest.
// This is mainly used to retrieve a single image's manifest out of a manifest list.
func (s *dockerImageSource) GetTargetManifest(digest string) ([]byte, string, error) {
return s.fetchManifest(digest)
}
// ensureManifestIsLoaded sets s.cachedManifest and s.cachedManifestMIMEType
//
// ImageSource implementations are not required or expected to do any caching,
@@ -99,26 +125,14 @@ func (s *dockerImageSource) ensureManifestIsLoaded() error {
if err != nil {
return err
}
url := fmt.Sprintf(manifestURL, s.ref.ref.RemoteName(), reference)
// TODO(runcom) set manifest version header! schema1 for now - then schema2 etc etc and v1
// TODO(runcom) NO, switch on the resulter manifest like Docker is doing
headers := make(map[string][]string)
headers["Accept"] = s.requestedManifestMIMETypes
res, err := s.c.makeRequest("GET", url, headers, nil)
manblob, mt, err := s.fetchManifest(reference)
if err != nil {
return err
}
defer res.Body.Close()
manblob, err := ioutil.ReadAll(res.Body)
if err != nil {
return err
}
if res.StatusCode != http.StatusOK {
return errFetchManifest{res.StatusCode, manblob}
}
// We might validate manblob against the Docker-Content-Digest header here to protect against transport errors.
s.cachedManifest = manblob
s.cachedManifestMIMEType = simplifyContentType(res.Header.Get("Content-Type"))
s.cachedManifestMIMEType = mt
return nil
}