Use import of OCI structs (go-gitea#22765)

Fixes go-gitea#22758

Otherwise we would need to rewrite the structs in `oci.go`.

go.mod

@@ -75,6 +75,8 @@ require (
 	github.com/niklasfasching/go-org v1.6.5
 	github.com/oliamb/cutter v0.2.2
 	github.com/olivere/elastic/v7 v7.0.32
+	github.com/opencontainers/go-digest v1.0.0
+	github.com/opencontainers/image-spec v1.1.0-rc2
 	github.com/pkg/errors v0.9.1
 	github.com/pquerna/otp v1.3.0
 	github.com/prometheus/client_golang v1.13.0

go.sum

@@ -1174,6 +1174,10 @@ github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1y
 github.com/onsi/gomega v1.10.3/go.mod h1:V9xEwhxec5O8UDM77eCW8vLymOMltsqPVYWrpDsH8xc=
 github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
+github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
+github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
+github.com/opencontainers/image-spec v1.1.0-rc2 h1:2zx/Stx4Wc5pIPDvIxHXvXtQFW/7XWJGmnM7r3wg034=
+github.com/opencontainers/image-spec v1.1.0-rc2/go.mod h1:3OVijpioIKYWTqjiG0zfF6wvoJ4fAXGbjdZuI2NgsRQ=
 github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492/go.mod h1:Ngi6UdF0k5OKD5t5wlmGhe/EDKPoUM3BXZSSfIuJbis=
 github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
 github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=

modules/packages/container/metadata.go

@@ -11,8 +11,9 @@ import (
 
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/packages/container/helm"
-	"code.gitea.io/gitea/modules/packages/container/oci"
 	"code.gitea.io/gitea/modules/validation"
+
+	oci "github.com/opencontainers/image-spec/specs-go/v1"
 )
 
 const (
@@ -66,8 +67,8 @@ type Metadata struct {
 }
 
 // ParseImageConfig parses the metadata of an image config
-func ParseImageConfig(mediaType oci.MediaType, r io.Reader) (*Metadata, error) {
-	if strings.EqualFold(string(mediaType), helm.ConfigMediaType) {
+func ParseImageConfig(mt string, r io.Reader) (*Metadata, error) {
+	if strings.EqualFold(mt, helm.ConfigMediaType) {
 		return parseHelmConfig(r)
 	}
 

modules/packages/container/metadata_test.go

@@ -9,8 +9,8 @@ import (
 	"testing"
 
 	"code.gitea.io/gitea/modules/packages/container/helm"
-	"code.gitea.io/gitea/modules/packages/container/oci"
 
+	oci "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -24,7 +24,7 @@ func TestParseImageConfig(t *testing.T) {
 
 	configOCI := `{"config": {"labels": {"` + labelAuthors + `": "` + author + `", "` + labelLicenses + `": "` + license + `", "` + labelURL + `": "` + projectURL + `", "` + labelSource + `": "` + repositoryURL + `", "` + labelDocumentation + `": "` + documentationURL + `", "` + labelDescription + `": "` + description + `"}}, "history": [{"created_by": "do it 1"}, {"created_by": "dummy #(nop) do it 2"}]}`
 
-	metadata, err := ParseImageConfig(oci.MediaType(oci.MediaTypeImageManifest), strings.NewReader(configOCI))
+	metadata, err := ParseImageConfig(oci.MediaTypeImageManifest, strings.NewReader(configOCI))
 	assert.NoError(t, err)
 
 	assert.Equal(t, TypeOCI, metadata.Type)
@@ -51,7 +51,7 @@ func TestParseImageConfig(t *testing.T) {
 
 	configHelm := `{"description":"` + description + `", "home": "` + projectURL + `", "sources": ["` + repositoryURL + `"], "maintainers":[{"name":"` + author + `"}]}`
 
-	metadata, err = ParseImageConfig(oci.MediaType(helm.ConfigMediaType), strings.NewReader(configHelm))
+	metadata, err = ParseImageConfig(helm.ConfigMediaType, strings.NewReader(configHelm))
 	assert.NoError(t, err)
 
 	assert.Equal(t, TypeHelm, metadata.Type)