support set opts for each key (#2)

oap.go

@@ -8,7 +8,7 @@ import (
 	"github.com/philchia/agollo/v4"
 )
 
-func Decode(ptr interface{}, client agollo.Client, opts ...agollo.OpOption) error {
+func Decode(ptr interface{}, client agollo.Client, keyOpts map[string][]agollo.OpOption) error {
 	v := reflect.ValueOf(ptr).Elem()
 	for i := 0; i < v.NumField(); i++ {
 		structField := v.Type().Field(i)
@@ -18,7 +18,12 @@ func Decode(ptr interface{}, client agollo.Client, opts ...agollo.OpOption) erro
 			// Ignore empty key
 			continue
 		}
-		confV := client.GetString(apolloKey, opts...)
+		var confV string
+		if opts, ok := keyOpts[apolloKey]; ok {
+			confV = client.GetString(apolloKey, opts...)
+		} else {
+			confV = client.GetString(apolloKey)
+		}
 		if confV == "" {
 			continue
 		}

oap_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	gomock "github.com/golang/mock/gomock"
+	agollo "github.com/philchia/agollo/v4"
 	"github.com/ringsaturn/oap"
 )
 
@@ -29,7 +30,7 @@ func TestDo(t *testing.T) {
 	client.EXPECT().GetString(gomock.Eq("boolField")).Return("true")
 
 	conf := &DemoConfig{}
-	if err := oap.Decode(conf, client); err != nil {
+	if err := oap.Decode(conf, client, make(map[string][]agollo.OpOption)); err != nil {
 		panic(err)
 	}
 	if conf.Foo != "bar" {