From 1813ab8a7a9ba63534ff1d01442117cd6b6f93d7 Mon Sep 17 00:00:00 2001
From: mrjoelkamp <joel.kamp@docker.com>
Date: Mon, 22 Apr 2024 12:47:14 -0500
Subject: [PATCH] feat: add exported constants

---
 internal/oci/oci.go   | 5 +++--
 internal/oci/types.go | 3 ---
 pkg/types/types.go    | 7 +++++++
 3 files changed, 10 insertions(+), 5 deletions(-)
 create mode 100644 pkg/types/types.go

diff --git a/internal/oci/oci.go b/internal/oci/oci.go
index 89af78c..0f50222 100644
--- a/internal/oci/oci.go
+++ b/internal/oci/oci.go
@@ -9,6 +9,7 @@ import (
 	"github.com/containerd/containerd/platforms"
 	"github.com/distribution/reference"
 	att "github.com/docker/attest/pkg/attestation"
+	"github.com/docker/attest/pkg/types"
 	"github.com/google/go-containerregistry/pkg/authn"
 	"github.com/google/go-containerregistry/pkg/name"
 	v1 "github.com/google/go-containerregistry/pkg/v1"
@@ -71,11 +72,11 @@ func attestationManifestFromOCILayout(path string, platformStr string) (*Attesta
 		}
 	}
 	for _, mf := range mfs2.Manifests {
-		if mf.Annotations[DockerReferenceType] != AttestationManifestType {
+		if mf.Annotations[types.DockerReferenceType] != types.AttestationManifestType {
 			continue
 		}
 
-		if mf.Annotations[DockerReferenceDigest] != imageDigest {
+		if mf.Annotations[types.DockerReferenceDigest] != imageDigest {
 			continue
 		}
 
diff --git a/internal/oci/types.go b/internal/oci/types.go
index 5af15eb..4f9367d 100644
--- a/internal/oci/types.go
+++ b/internal/oci/types.go
@@ -1,8 +1,5 @@
 package oci
 
 const (
-	DockerReferenceType     = "vnd.docker.reference.type"
-	DockerReferenceDigest   = "vnd.docker.reference.digest"
-	AttestationManifestType = "attestation-manifest"
 	InTotoPredicateType     = "in-toto.io/predicate-type"
 )
diff --git a/pkg/types/types.go b/pkg/types/types.go
new file mode 100644
index 0000000..ee847f2
--- /dev/null
+++ b/pkg/types/types.go
@@ -0,0 +1,7 @@
+package types
+
+const (
+	DockerReferenceType     = "vnd.docker.reference.type"
+	DockerReferenceDigest   = "vnd.docker.reference.digest"
+	AttestationManifestType = "attestation-manifest"
+)