Add CycloneDX decoder (#811)

syft/pkg/cargo_metadata.go

@@ -1,14 +1,12 @@
-package rust
-
-import "github.com/anchore/syft/syft/pkg"
+package pkg
 
 type CargoMetadata struct {
-	Packages []pkg.CargoPackageMetadata `toml:"package"`
+	Packages []CargoPackageMetadata `toml:"package"`
 }
 
 // Pkgs returns all of the packages referenced within the Cargo.lock metadata.
-func (m CargoMetadata) Pkgs() []*pkg.Package {
-	pkgs := make([]*pkg.Package, 0)
+func (m CargoMetadata) Pkgs() []*Package {
+	pkgs := make([]*Package, 0)
 
 	for _, p := range m.Packages {
 		if p.Dependencies == nil {

syft/pkg/cataloger/rust/parse_cargo_lock.go

@@ -20,7 +20,7 @@ func parseCargoLock(_ string, reader io.Reader) ([]*pkg.Package, []artifact.Rela
 		return nil, nil, fmt.Errorf("unable to load Cargo.lock for parsing: %v", err)
 	}
 
-	metadata := CargoMetadata{}
+	metadata := pkg.CargoMetadata{}
 	err = tree.Unmarshal(&metadata)
 	if err != nil {
 		return nil, nil, fmt.Errorf("unable to parse Cargo.lock: %v", err)

syft/pkg/metadata.go

@@ -1,5 +1,9 @@
 package pkg
 
+import (
+	"reflect"
+)
+
 // MetadataType represents the data shape stored within pkg.Package.Metadata.
 type MetadataType string
 
@@ -33,3 +37,17 @@ var AllMetadataTypes = []MetadataType{
 	GolangBinMetadataType,
 	PhpComposerJSONMetadataType,
 }
+
+var MetadataTypeByName = map[MetadataType]reflect.Type{
+	ApkMetadataType:              reflect.TypeOf(ApkMetadata{}),
+	DpkgMetadataType:             reflect.TypeOf(DpkgMetadata{}),
+	GemMetadataType:              reflect.TypeOf(GemMetadata{}),
+	JavaMetadataType:             reflect.TypeOf(JavaMetadata{}),
+	NpmPackageJSONMetadataType:   reflect.TypeOf(NpmPackageJSONMetadata{}),
+	RpmdbMetadataType:            reflect.TypeOf(RpmdbMetadata{}),
+	PythonPackageMetadataType:    reflect.TypeOf(PythonPackageMetadata{}),
+	RustCargoPackageMetadataType: reflect.TypeOf(CargoMetadata{}),
+	KbPackageMetadataType:        reflect.TypeOf(KbPackageMetadata{}),
+	GolangBinMetadataType:        reflect.TypeOf(GolangBinMetadata{}),
+	PhpComposerJSONMetadataType:  reflect.TypeOf(PhpComposerJSONMetadata{}),
+}