refactor(recipe): introduce Dir var

pkg/recipe/recipe.go

@@ -267,11 +267,15 @@ func (r Recipe) SampleEnv() (map[string]string, error) {
 }
 
 func Get2(name string) Recipe2 {
-	return Recipe2{Name: name}
+	return Recipe2{
+		Name: name,
+		Dir:  path.Join(config.RECIPES_DIR, name),
+	}
 }
 
 type Recipe2 struct {
 	Name string
+	Dir  string
 }
 
 // Ensure makes sure the recipe exists, is up to date and has the latest version checked out.