update to skip type guac purls in deps.dev (#2039)

Signed-off-by: pxp928 <parth.psu@gmail.com>

pkg/handler/collector/deps_dev/deps_dev.go

@@ -333,21 +333,27 @@ func (d *depsCollector) getAllDependencies(ctx context.Context, purls []datasour
 		packageInput, err := helpers.PurlToPkg(purl)
 		if err != nil {
 			logger.Infof("failed to parse purl to pkg: %s", purl)
-			return nil
+			continue
+		}
+
+		// skip all type guac as they are generated by guac and will not be found in deps.dev
+		if packageInput.Type == "guac" {
+			logger.Debugf("guac purl, skipping deps.dev query: %s", purl)
+			continue
 		}
 
 		// if version is not specified, cannot obtain accurate information from deps.dev. Log as info and skip the purl.
 		if packageInput != nil && *packageInput.Version == "" {
 			logger.Debugf("purl does not contain version, skipping deps.dev query: %s", purl)
-			return nil
+			continue
 		}
 
 		// Make an RPC Request. The returned result is a stream of
 		// DependenciesResponse structs.
 		versionKey, err := getVersionKey(packageInput.Type, packageInput.Namespace, packageInput.Name, packageInput.Version)
 		if err != nil {
 			logger.Debugf("failed to getVersionKey with the following error: %v", err)
-			return nil
+			continue
 		}
 		// send the version key to the version channel
 		versionChan <- versionKey
@@ -359,7 +365,7 @@ func (d *depsCollector) getAllDependencies(ctx context.Context, purls []datasour
 		deps, err := d.client.GetDependencies(ctx, dependenciesReq)
 		if err != nil {
 			logger.Debugf("failed to get dependencies %v", err)
-			return nil
+			continue
 		}
 		logger.Infof("Retrieved dependencies for %s", purl)
 		d.dependencies[versionKey.String()] = deps
@@ -376,6 +382,12 @@ func (d *depsCollector) getAllDependencies(ctx context.Context, purls []datasour
 				pkgtype = strings.ToLower(node.VersionKey.System.String())
 			}
 
+			// skip all type guac as they are generated by guac and will not be found in deps.dev
+			if pkgtype == "guac" {
+				logger.Debugf("guac purl, skipping deps.dev query: %s", purl)
+				continue
+			}
+
 			depPurl := "pkg:" + pkgtype + "/" + node.VersionKey.Name + "@" + node.VersionKey.Version
 			depPackageInput, err := helpers.PurlToPkg(depPurl)
 			if err != nil {
@@ -414,6 +426,12 @@ func (d *depsCollector) fetchDependencies(ctx context.Context, purl string, docC
 		return nil
 	}
 
+	// skip all type guac as they are generated by guac and will not be found in deps.dev
+	if packageInput.Type == "guac" {
+		logger.Debugf("guac purl, skipping deps.dev query: %s", purl)
+		return nil
+	}
+
 	// if version is not specified, cannot obtain accurate information from deps.dev. Log as info and skip the purl.
 	if *packageInput.Version == "" {
 		logger.Infof("purl does not contain version, skipping deps.dev query: %s", purl)
@@ -538,6 +556,11 @@ func (d *depsCollector) fetchDependencies(ctx context.Context, purl string, docC
 func (d *depsCollector) collectAdditionalMetadata(ctx context.Context, pkgType string, namespace *string, name string, version *string, pkgComponent *PackageComponent) error {
 	logger := logging.FromContext(ctx)
 
+	// skip all type guac as they are generated by guac and will not be found in deps.dev
+	if pkgType == "guac" {
+		return fmt.Errorf("guac purl, skipping deps.dev query: %s", strings.Join([]string{pkgType, *namespace, name}, "/"))
+	}
+
 	versionKey, err := getVersionKey(pkgType, namespace, name, version)
 	if err != nil {
 		return fmt.Errorf("failed to getVersionKey with the following error: %w", err)