Track supporting DPKG evidence (#3228)

* add dpkg evidence support

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* use path over filepath

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

internal/relationship/evident_by.go

@@ -9,15 +9,18 @@ func EvidentBy(catalog *pkg.Collection) []artifact.Relationship {
 	var edges []artifact.Relationship
 	for _, p := range catalog.Sorted() {
 		for _, l := range p.Locations.ToSlice() {
-			if v, exists := l.Annotations[pkg.EvidenceAnnotationKey]; !exists || v != pkg.PrimaryEvidenceAnnotation {
-				// skip non-primary evidence from being expressed as a relationship.
-				// note: this may be configurable in the future.
-				continue
+			kind := pkg.SupportingEvidenceAnnotation
+			if v, exists := l.Annotations[pkg.EvidenceAnnotationKey]; exists {
+				kind = v
 			}
+
 			edges = append(edges, artifact.Relationship{
 				From: p,
 				To:   l.Coordinates,
 				Type: artifact.EvidentByRelationship,
+				Data: map[string]string{
+					"kind": kind,
+				},
 			})
 		}
 	}

internal/task/file_tasks.go

@@ -134,9 +134,10 @@ func coordinatesForSelection(selection file.Selection, accessor sbomsync.Accesso
 	}
 
 	if selection == file.FilesOwnedByPackageSelection {
-		var coordinates []file.Coordinates
+		var coordinates file.CoordinateSet
 
 		accessor.ReadFromSBOM(func(sbom *sbom.SBOM) {
+			// get any file coordinates that are owned by a package
 			for _, r := range sbom.Relationships {
 				if r.Type != artifact.ContainsRelationship {
 					continue
@@ -145,16 +146,23 @@ func coordinatesForSelection(selection file.Selection, accessor sbomsync.Accesso
 					continue
 				}
 				if c, ok := r.To.(file.Coordinates); ok {
-					coordinates = append(coordinates, c)
+					coordinates.Add(c)
 				}
 			}
+
+			// get any file coordinates referenced by a package directly
+			for p := range sbom.Artifacts.Packages.Enumerate() {
+				coordinates.Add(p.Locations.CoordinateSet().ToSlice()...)
+			}
 		})
 
-		if len(coordinates) == 0 {
+		coords := coordinates.ToSlice()
+
+		if len(coords) == 0 {
 			return nil, false
 		}
 
-		return coordinates, true
+		return coords, true
 	}
 
 	return nil, false