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Merge pull request #33214 from aaronlehmann/pull-prefer-digest

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Prefer digest over tag on pull
This commit is contained in:
Tõnis Tiigi 2017-05-16 09:56:00 -07:00 • committed by GitHub
commit c93a48e138
1 changed files with 7 additions and 7 deletions
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14
distribution/pull_v2.go
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@ -334,18 +334,18 @@ func (p *v2Puller) pullV2Tag(ctx context.Context, ref reference.Named) (tagUpdat
manifest distribution.Manifest
tagOrDigest string // Used for logging/progress only
)
if tagged, isTagged := ref.(reference.NamedTagged); isTagged {
manifest, err = manSvc.Get(ctx, "", distribution.WithTag(tagged.Tag()))
if err != nil {
return false, allowV1Fallback(err)
}
tagOrDigest = tagged.Tag()
} else if digested, isDigested := ref.(reference.Canonical); isDigested {
if digested, isDigested := ref.(reference.Canonical); isDigested {
manifest, err = manSvc.Get(ctx, digested.Digest())
if err != nil {
return false, err
}
tagOrDigest = digested.Digest().String()
} else if tagged, isTagged := ref.(reference.NamedTagged); isTagged {
manifest, err = manSvc.Get(ctx, "", distribution.WithTag(tagged.Tag()))
if err != nil {
return false, allowV1Fallback(err)
}
tagOrDigest = tagged.Tag()
} else {
return false, fmt.Errorf("internal error: reference has neither a tag nor a digest: %s", reference.FamiliarString(ref))
}