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support artifact discovery for oras lib
Signed-off-by: Shiwei Zhang <shizh@microsoft.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| package oras | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/containerd/containerd/remotes" | ||
| artifactspec "github.com/notaryproject/artifacts/specs-go/v2" | ||
| ocispec "github.com/opencontainers/image-spec/specs-go/v1" | ||
| ) | ||
|
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| // Discover discovers artifacts referencing the specified artifact | ||
| func Discover(ctx context.Context, resolver remotes.Resolver, ref, artifactType string) (ocispec.Descriptor, []artifactspec.Artifact, error) { | ||
| _, desc, err := resolver.Resolve(ctx, ref) | ||
| if err != nil { | ||
| return ocispec.Descriptor{}, nil, err | ||
| } | ||
|
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| discoverer, err := resolver.Discoverer(ctx, ref) | ||
| if err != nil { | ||
| return ocispec.Descriptor{}, nil, err | ||
| } | ||
|
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| artifacts, err := discoverer.Discover(ctx, desc, artifactType) | ||
| if err != nil { | ||
| return ocispec.Descriptor{}, nil, err | ||
| } | ||
|
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| return desc, artifacts, err | ||
| } |