Fix issues

Author: jhutchings1

dist/index.js

@@ -41,9 +41,12 @@ function getManifestFromSpdxFile(document, fileName) {
   core.debug(`Processing ${document.packages?.length} packages`);
 
   document.packages?.forEach(pkg => {
-    let packageName = pkg.packageName;
+    let packageName = pkg.name;
     let packageVersion = pkg.packageVersion;
     let purl = pkg.externalRefs?.find(ref => ref.referenceCategory === "PACKAGE-MANAGER" && ref.referenceType === "purl")?.referenceLocator;
+    if (purl == null || purl == undefined) {
+      purl = `pkg:generic/${packageName}@${packageVersion}`;
+    }
 
     let relationships = document.relationships?.find(rel => rel.relatedSpdxElement == pkg.SPDXID && rel.relationshipType == "DEPENDS_ON" && rel.spdxElementId != "SPDXRef-RootPackage");
     if (relationships != null && relationships.length > 0) {