add miss comment for pkg/cfg

pkg/cfg/cfg.go

@@ -1,7 +1,7 @@
 package cfg
 
 var (
-	_features = emptyFeatures()
+	_features = newEmptyFeatures()
 
 	// Use alias of Features.Use func
 	Use = _features.Use
@@ -25,6 +25,7 @@ var (
 	Not = _features.CfgNot
 )
 
+// Initialize initialize features in cfg pkg
 func Initialize(suites map[string][]string, kv map[string]string) {
 	_features = NewFeatures(suites, kv)
 	{

pkg/cfg/feature.go

@@ -6,6 +6,7 @@ import (
 	"github.com/rocboss/paopao-ce/pkg/types"
 )
 
+// Features fetures info struct
 type Features struct {
 	kv       map[string]string
 	suites   map[string][]string
@@ -15,6 +16,7 @@ type Features struct {
 // Actions feature-func map alias type
 type Actions map[string]types.Fn
 
+// NewFeatures create new Features instance
 func NewFeatures(suites map[string][]string, kv map[string]string) *Features {
 	f := &Features{
 		suites:   suites,
@@ -25,16 +27,18 @@ func NewFeatures(suites map[string][]string, kv map[string]string) *Features {
 	return f
 }
 
-func emptyFeatures() *Features {
+func newEmptyFeatures() *Features {
 	return &Features{
 		features: make(map[string]string),
 	}
 }
 
+// UseDefault use default suite for features
 func (f *Features) UseDefault() {
 	f.Use([]string{"default"}, true)
 }
 
+// Use use custom suite for features
 func (f *Features) Use(suite []string, noDefault bool) error {
 	if noDefault && len(f.features) != 0 {
 		f.features = make(map[string]string)