port remaining spdx-json relationships to sbom model

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

internal/formats/common/spdxhelpers/files.go

@@ -1,51 +0,0 @@
-package spdxhelpers
-
-import (
-	"crypto/sha256"
-	"fmt"
-	"path/filepath"
-
-	"github.com/anchore/syft/internal/formats/spdx22json/model"
-	"github.com/anchore/syft/syft/pkg"
-)
-
-func Files(packageSpdxID string, p pkg.Package) (files []model.File, fileIDs []string, relationships []model.Relationship) {
-	files = make([]model.File, 0)
-	fileIDs = make([]string, 0)
-	relationships = make([]model.Relationship, 0)
-
-	if !hasMetadata(p) {
-		return files, fileIDs, relationships
-	}
-
-	pkgFileOwner, ok := p.Metadata.(pkg.FileOwner)
-	if !ok {
-		return files, fileIDs, relationships
-	}
-
-	for _, ownedFilePath := range pkgFileOwner.OwnedFiles() {
-		baseFileName := filepath.Base(ownedFilePath)
-		pathHash := sha256.Sum256([]byte(ownedFilePath))
-		fileSpdxID := model.ElementID(fmt.Sprintf("File-%s-%x", p.Name, pathHash)).String()
-
-		fileIDs = append(fileIDs, fileSpdxID)
-
-		files = append(files, model.File{
-			FileName: ownedFilePath,
-			Item: model.Item{
-				Element: model.Element{
-					SPDXID: fileSpdxID,
-					Name:   baseFileName,
-				},
-			},
-		})
-
-		relationships = append(relationships, model.Relationship{
-			SpdxElementID:      packageSpdxID,
-			RelationshipType:   model.ContainsRelationship,
-			RelatedSpdxElement: fileSpdxID,
-		})
-	}
-
-	return files, fileIDs, relationships
-}