chore: reformat with gofumpt (#109)

* Reformat with gofumpt

* Suppress issue about laxer perms than 0600

---------

Co-authored-by: Joel Kamp <joel.kamp@docker.com>

internal/embed/root.go

@@ -16,11 +16,13 @@ var prodRoot []byte
 
 var defaultRoot = prodRoot
 
-type RootName string
-type EmbeddedRoot struct {
-	Data []byte
-	Name RootName
-}
+type (
+	RootName     string
+	EmbeddedRoot struct {
+		Data []byte
+		Name RootName
+	}
+)
 
 var (
 	RootDev     = EmbeddedRoot{Data: devRoot, Name: "dev"}

internal/test/mocks.go

@@ -34,7 +34,6 @@ func (r MockResolver) ImageDescriptor(ctx context.Context) (*v1.Descriptor, erro
 		Size:      1234,
 		MediaType: "application/vnd.oci.image.manifest.v1+json",
 	}, nil
-
 }
 
 func (r MockResolver) ImagePlatform(ctx context.Context) (*v1.Platform, error) {

internal/test/test.go

@@ -124,10 +124,10 @@ func ExtractStatementsFromIndex(idx v1.ImageIndex, mediaType string) ([]*Annotat
 				return nil, fmt.Errorf("failed to get layer contents: %w", err)
 			}
 			defer r.Close()
-			var intotoStatement = new(intoto.Statement)
+			intotoStatement := new(intoto.Statement)
 			var desc *v1.Descriptor
 			if strings.HasSuffix(string(mt), "+dsse") {
-				var env = new(attestation.Envelope)
+				env := new(attestation.Envelope)
 				err = json.NewDecoder(r).Decode(env)
 				if err != nil {
 					return nil, fmt.Errorf("failed to decode env: %w", err)

internal/test/test_test.go

@@ -8,9 +8,7 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-var (
-	UnsignedTestImage = filepath.Join("..", "..", "test", "testdata", "unsigned-test-image")
-)
+var UnsignedTestImage = filepath.Join("..", "..", "test", "testdata", "unsigned-test-image")
 
 const (
 	ExpectedStatements = 4