Change ScanResult.Packages structure to Map

cache/bolt_test.go

@@ -37,8 +37,8 @@ var meta = Meta{
 		Family:  "ubuntu",
 		Release: "16.04",
 	},
-	Packs: []models.Package{
-		{
+	Packs: models.Packages{
+		"apt": {
 			Name:    "apt",
 			Version: "1",
 		},

cache/db.go

@@ -45,16 +45,6 @@ type Cache interface {
 type Meta struct {
 	Name      string
 	Distro    config.Distro
-	Packs     []models.Package
+	Packs     models.Packages
 	CreatedAt time.Time
 }
-
-// FindPack search a Package
-func (m Meta) FindPack(name string) (pack models.Package, found bool) {
-	for _, p := range m.Packs {
-		if name == p.Name {
-			return p, true
-		}
-	}
-	return pack, false
-}