Add poetry cataloger (#121)

* Minor cleanup

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

* Update pkg Type definition to string

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

* Implement poetry.lock parsing

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

* Address CI issues

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

* Integrate Alex's changes

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

syft/pkg/package.go

@@ -15,7 +15,7 @@ type Package struct {
 	id       ID               // this is set when a package is added to the catalog
 	Name     string           `json:"manifest"`
 	Version  string           `json:"version"`
-	FoundBy  string           `json:"found-by"`
+	FoundBy  string           `json:"found-by"` // FoundBy is the cataloger that discovered this package
 	Source   []file.Reference `json:"sources"`
 	Licenses []string         `json:"licenses"` // TODO: should we move this into metadata?
 	Language Language         `json:"language"` // TODO: should this support multiple languages as a slice?

syft/pkg/type.go

@@ -1,47 +1,31 @@
 package pkg
 
+type Type string
+
 const (
-	UnknownPkg Type = iota
-	ApkPkg
-	BundlerPkg
-	DebPkg
-	EggPkg
-	//PacmanPkg
-	RpmPkg
-	WheelPkg
-	NpmPkg
-	YarnPkg
-	PythonRequirementsPkg
-	JavaPkg
-	JenkinsPluginPkg
-	GoModulePkg
+	UnknownPkg Type = "UnknownPackage"
+	ApkPkg     Type = "apk"
+	BundlerPkg Type = "bundle"
+	DebPkg     Type = "deb"
+	EggPkg     Type = "egg"
+	// PacmanPkg Type = "pacman"
+	RpmPkg                Type = "rpm"
+	WheelPkg              Type = "wheel"
+	PoetryPkg             Type = "poetry"
+	NpmPkg                Type = "npm"
+	YarnPkg               Type = "yarn"
+	PythonRequirementsPkg Type = "python-requirements"
+	JavaPkg               Type = "java-archive"
+	JenkinsPluginPkg      Type = "jenkins-plugin"
+	GoModulePkg           Type = "go-module"
 )
 
-type Type uint
-
-var typeStr = []string{
-	"UnknownPackage",
-	"apk",
-	"bundle",
-	"deb",
-	"egg",
-	//"pacman",
-	"rpm",
-	"wheel",
-	"npm",
-	"yarn",
-	"python-requirements",
-	"java-archive",
-	"jenkins-plugin",
-	"go-module",
-}
-
 var AllPkgs = []Type{
 	ApkPkg,
 	BundlerPkg,
 	DebPkg,
 	EggPkg,
-	//PacmanPkg,
+	// PacmanPkg,
 	RpmPkg,
 	WheelPkg,
 	NpmPkg,
@@ -51,10 +35,3 @@ var AllPkgs = []Type{
 	JenkinsPluginPkg,
 	GoModulePkg,
 }
-
-func (t Type) String() string {
-	if int(t) >= len(typeStr) {
-		return typeStr[0]
-	}
-	return typeStr[t]
-}