cmd: do not default for images, handle it specifically

Signed-off-by: Alfredo Deza <adeza@anchore.com>

cmd/root.go

@@ -7,12 +7,10 @@ import (
 	"github.com/anchore/imgbom/imgbom"
 	"github.com/anchore/imgbom/imgbom/event"
 	"github.com/anchore/imgbom/imgbom/presenter"
-	"github.com/anchore/imgbom/imgbom/scope"
 	"github.com/anchore/imgbom/internal"
 	"github.com/anchore/imgbom/internal/bus"
 	"github.com/anchore/imgbom/internal/log"
 	"github.com/anchore/imgbom/internal/ui"
-	"github.com/anchore/stereoscope"
 	"github.com/spf13/cobra"
 	"github.com/wagoodman/go-partybus"
 )
@@ -50,54 +48,31 @@ func startWorker(userInput string) <-chan error {
 	errs := make(chan error)
 	go func() {
 		defer close(errs)
-		protocol := imgbom.NewProtocol(userInput)
-		log.Debugf("protocol: %+v", protocol)
 
-		var s scope.Scope
-		var err error
+		s, cleanup, err := imgbom.NewScope(userInput, appConfig.ScopeOpt)
+		defer cleanup()
 
-		switch protocol.Type {
-		case imgbom.DirProtocol:
-			// populate the scope object for dir
-			s, err = imgbom.GetScopeFromDir(protocol.Value, appConfig.ScopeOpt)
-			if err != nil {
-				errs <- fmt.Errorf("could not populate scope from path (%s): %w", protocol.Value, err)
-			}
-
-		default:
-			log.Infof("Fetching image '%s'", userInput)
-			img, err := stereoscope.GetImage(userInput)
-
-			if err != nil || img == nil {
-				errs <- fmt.Errorf("could not fetch image '%s': %w", userInput, err)
-
-				// TODO: this needs to be handled better
-				bus.Publish(partybus.Event{
-					Type:  event.CatalogerFinished,
-					Value: nil,
-				})
-				return
-			}
-			defer stereoscope.Cleanup()
-
-			// populate the scope object for image
-			s, err = imgbom.GetScopeFromImage(img, appConfig.ScopeOpt)
-			if err != nil {
-				errs <- fmt.Errorf("could not populate scope with image: %w", err)
-			}
+		if err != nil {
+			log.Errorf("could not produce catalog: %w", err)
 		}
-
 		log.Info("Identifying Distro")
 		distro := imgbom.IdentifyDistro(s)
+
 		if distro == nil {
 			log.Errorf("error identifying distro")
 		} else {
 			log.Infof("  Distro: %s", distro)
 		}
+		log.Info("Creating the Catalog")
+		catalog, err := imgbom.Catalog(s)
+
+		if err != nil {
+			log.Errorf("could not produce catalog: %w", err)
+		}
 
 		bus.Publish(partybus.Event{
 			Type:  event.CatalogerFinished,
-			Value: presenter.GetPresenter(appConfig.PresenterOpt, s),
+			Value: presenter.GetPresenter(appConfig.PresenterOpt, s, catalog),
 		})
 	}()
 	return errs

imgbom/distro/identify.go

@@ -22,7 +22,6 @@ func Identify(s scope.Scope) *Distro {
 	}
 
 	for path, fn := range identityFiles {
-		// this is always a slice with a single ref, the API is odd because it was meant for images
 		refs, err := s.FilesByPath(path)
 		if err != nil {
 			log.Errorf("unable to get path refs from %s: %s", path, err)
@@ -32,33 +31,34 @@ func Identify(s scope.Scope) *Distro {
 		if len(refs) == 0 {
 			continue
 		}
-		ref := refs[0]
 
-		contents, err := s.MultipleFileContentsByRef(ref)
-		log.Infof("contents are: %+v", contents)
-		content, ok := contents[ref]
-		// XXX is it possible to get a ref and no contents at all?
-		if !ok {
-			continue
+		for _, ref := range refs {
+			contents, err := s.MultipleFileContentsByRef(ref)
+			content, ok := contents[ref]
+
+			if !ok {
+				log.Infof("no content present for ref: %s", ref)
+				continue
+			}
+
+			if err != nil {
+				log.Debugf("unable to get contents from %s: %s", path, err)
+				continue
+			}
+
+			if content == "" {
+				log.Debugf("no contents in file, skipping: %s", path)
+				continue
+			}
+
+			distro := fn(content)
+
+			if distro == nil {
+				continue
+			}
+
+			return distro
 		}
-
-		if err != nil {
-			log.Debugf("unable to get contents from %s: %s", path, err)
-			continue
-		}
-
-		if content == "" {
-			log.Debugf("no contents in file, skipping: %s", path)
-			continue
-		}
-
-		distro := fn(content)
-
-		if distro == nil {
-			continue
-		}
-
-		return distro
 	}
 	// TODO: is it useful to know partially detected distros? where the ID is known but not the version (and viceversa?)
 	return nil