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Merge pull request #1001 from RichardScothern/fix-atrocity

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Don't return nil, nil from functions
This commit is contained in:
Aaron Lehmann 2015-09-28 13:34:11 -07:00
commit 8a05f9bb4f
3 changed files with 5 additions and 10 deletions
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4
docs/client/repository.go
View file

@ -211,8 +211,6 @@ func (ms *manifests) Tags() ([]string, error) {
}
return tagsResponse.Tags, nil
} else if resp.StatusCode == http.StatusNotFound {
return nil, nil
}
return nil, handleErrorResponse(resp)
}
@ -288,7 +286,7 @@ func (ms *manifests) GetByTag(tag string, options ...distribution.ManifestServic
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNotModified {
return nil, nil
return nil, distribution.ErrManifestNotModified
} else if SuccessStatus(resp.StatusCode) {
var sm schema1.SignedManifest
decoder := json.NewDecoder(resp.Body)

7
docs/client/repository_test.go
View file

@ -603,13 +603,10 @@ func TestManifestFetchWithEtag(t *testing.T) {
t.Fatal(err)
}
m2, err := ms.GetByTag("latest", AddEtagToTag("latest", d1.String()))
if err != nil {
_, err = ms.GetByTag("latest", AddEtagToTag("latest", d1.String()))
if err != distribution.ErrManifestNotModified {
t.Fatal(err)
}
if m2 != nil {
t.Fatal("Expected empty manifest for matching etag")
}
}
func TestManifestDelete(t *testing.T) {

4
docs/proxy/proxymanifeststore.go
View file

@ -102,11 +102,11 @@ func (pms proxyManifestStore) GetByTag(tag string, options ...distribution.Manif
fromremote:
var sm *schema1.SignedManifest
sm, err = pms.remoteManifests.GetByTag(tag, client.AddEtagToTag(tag, localDigest.String()))
if err != nil {
if err != nil && err != distribution.ErrManifestNotModified {
return nil, err
}
if sm == nil {
if err == distribution.ErrManifestNotModified {
context.GetLogger(pms.ctx).Debugf("Local manifest for %q is latest, dgst=%s", tag, localDigest.String())
return localManifest, nil
}