add gem analyzer

imgbom/pkg/catalog.go

@@ -26,6 +26,10 @@ func NewCatalog() *Catalog {
 	}
 }
 
+func (c *Catalog) PackageCount() int {
+	return len(c.byID)
+}
+
 func (c *Catalog) Package(id ID) *Package {
 	return c.byID[id]
 }

imgbom/pkg/language.go

@@ -0,0 +1,33 @@
+package pkg
+
+const (
+	UnknownLanguage Language = iota
+	Java
+	JavaScript
+	Python
+	Ruby
+)
+
+type Language uint
+
+var languageStr = []string{
+	"UnknownLanguage",
+	"java",
+	"javascript",
+	"python",
+	"ruby",
+}
+
+var AllLanguages = []Language{
+	Java,
+	JavaScript,
+	Python,
+	Ruby,
+}
+
+func (t Language) String() string {
+	if int(t) >= len(languageStr) {
+		return languageStr[0]
+	}
+	return languageStr[t]
+}

imgbom/pkg/package.go

@@ -16,6 +16,7 @@ type Package struct {
 	FoundBy  string
 	Source   []file.Reference
 	Licenses []string
+	Language Language // TODO: should this support multiple languages as a slice?
 	Type     Type
 	Metadata interface{}
 }

imgbom/pkg/type.go

@@ -3,13 +3,10 @@ package pkg
 const (
 	UnknownPkg Type = iota
 	ApkPkg
+	BundlerPkg
 	DebPkg
-	JavaPkg
-	JavaScriptPkg
 	PacmanPkg
-	PythonPkg
 	RpmPkg
-	RubyPkg
 )
 
 type Type uint
@@ -17,13 +14,18 @@ type Type uint
 var typeStr = []string{
 	"UnknownPackage",
 	"apk",
+	"bundler",
 	"deb",
-	"java",
-	"javascript",
 	"pacman",
-	"python",
 	"rpm",
-	"ruby",
+}
+
+var AllPkgs = []Type{
+	ApkPkg,
+	BundlerPkg,
+	DebPkg,
+	PacmanPkg,
+	RpmPkg,
 }
 
 func (t Type) String() string {