migrate location and file metadata to the file package

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

cmd/attest.go

@@ -136,12 +136,12 @@ func attestExec(ctx context.Context, _ *cobra.Command, args []string) error {
 		return fmt.Errorf("could not generate source input for attest command: %w", err)
 	}
 
-	switch si.Scheme {
-	case source.ImageScheme, source.UnknownScheme:
+	switch si.Type {
+	case source.ImageType, source.UnknownType:
 		// at this point we know that it cannot be dir: or file: schemes, so we will assume that the unknown scheme could represent an image
-		si.Scheme = source.ImageScheme
+		si.Type = source.ImageType
 	default:
-		return fmt.Errorf("attest command can only be used with image sources but discovered %q when given %q", si.Scheme, userInput)
+		return fmt.Errorf("attest command can only be used with image sources but discovered %q when given %q", si.Type, userInput)
 	}
 
 	// if the original detection was from a local daemon we want to short circuit

cmd/packages.go

@@ -312,7 +312,7 @@ func packagesExecWorker(si source.Input, writer sbom.Writer) <-chan error {
 func runPackageSbomUpload(src *source.Source, s sbom.SBOM) error {
 	log.Infof("uploading results to %s", appConfig.Anchore.Host)
 
-	if src.Metadata.Scheme != source.ImageScheme {
+	if src.Metadata.Scheme != source.ImageType {
 		return fmt.Errorf("unable to upload results: only images are supported")
 	}