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Refactor specification of supported digests

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To make the definition of supported digests more clear, we have refactored the
digest package to have a special Algorithm type. This represents the digest's
prefix and we associated various supported hash implementations through
function calls.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2015-05-21 18:44:08 -07:00
parent a0d242d9df
commit bdaed4c789
5 changed files with 12 additions and 11 deletions
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6
docs/storage/paths.go
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@ -262,7 +262,7 @@ func (pm *pathMapper) path(spec pathSpec) (string, error) {
if v.list {
offset = "" // Limit to the prefix for listing offsets.
}
return path.Join(append(repoPrefix, v.name, "_uploads", v.id, "hashstates", v.alg, offset)...), nil
return path.Join(append(repoPrefix, v.name, "_uploads", v.id, "hashstates", string(v.alg), offset)...), nil
case repositoriesRootPathSpec:
return path.Join(repoPrefix...), nil
default:
@ -447,7 +447,7 @@ func (uploadStartedAtPathSpec) pathSpec() {}
type uploadHashStatePathSpec struct {
name string
id string
alg string
alg digest.Algorithm
offset int64
list bool
}
@ -479,7 +479,7 @@ func digestPathComponents(dgst digest.Digest, multilevel bool) ([]string, error)
return nil, err
}
algorithm := blobAlgorithmReplacer.Replace(dgst.Algorithm())
algorithm := blobAlgorithmReplacer.Replace(string(dgst.Algorithm()))
hex := dgst.Hex()
prefix := []string{algorithm}