fix: add media type in the generated OCI index

Signed-off-by: Lixia (Sylvia) Lei <lixlei@microsoft.com>
oras-project · Feb 18, 2025 · c34e75d · c34e75d
1 parent 43e6842
commit c34e75d
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Showing 2 changed files with 4 additions and 0 deletions.
diff --git a/content/oci/oci.go b/content/oci/oci.go
@@ -379,6 +379,7 @@ func (s *Store) loadIndexFile(ctx context.Context) error {
 			Versioned: specs.Versioned{
 				SchemaVersion: 2, // historical value
 			},
+			MediaType: ocispec.MediaTypeImageIndex,
 			Manifests: []ocispec.Descriptor{},
 		}
 		return s.writeIndexFile()

diff --git a/content/oci/oci_test.go b/content/oci/oci_test.go
@@ -125,6 +125,9 @@ func TestStore_Success(t *testing.T) {
 	if want := 2; index.SchemaVersion != want {
 		t.Errorf("index.SchemaVersion = %v, want %v", index.SchemaVersion, want)
 	}
+	if want := "application/vnd.oci.image.index.v1+json"; index.MediaType != want {
+		t.Errorf("index.MediaType = %s, want %s", index.MediaType, want)
+	}
 
 	// test push blob
 	err = s.Push(ctx, blobDesc, bytes.NewReader(blob))