chore(controller-sdk-go): set config add merge param (#48)

Author: jianxiaoguo

config/config.go

@@ -41,14 +41,13 @@ func List(c *drycc.Client, app string, version int) (api.Config, error) {
 // Calling Set() with an empty api.Config will return a drycc.ErrConflict.
 // Trying to unset a key that does not exist returns a drycc.ErrUnprocessable.
 // Trying to set a tag that is not a label in the kubernetes cluster will return a drycc.ErrTagNotFound.
-func Set(c *drycc.Client, app string, config api.Config) (api.Config, error) {
+func Set(c *drycc.Client, app string, config api.Config, merge bool) (api.Config, error) {
 	body, err := json.Marshal(config)
 	if err != nil {
 		return api.Config{}, err
 	}
 
-	u := fmt.Sprintf("/v2/apps/%s/config/", app)
-
+	u := fmt.Sprintf("/v2/apps/%s/config/?merge=%v", app, merge)
 	res, reqErr := c.Request("POST", u, body)
 	if reqErr != nil {
 		return api.Config{}, reqErr

config/config_test.go

@@ -275,7 +275,7 @@ func TestConfigSet(t *testing.T) {
 		},
 	}
 
-	actual, err := Set(drycc, "example-go", configVars)
+	actual, err := Set(drycc, "example-go", configVars, true)
 	if err != nil {
 		t.Error(err)
 	}
@@ -332,7 +332,7 @@ func TestConfigUnset(t *testing.T) {
 		},
 	}
 
-	actual, err := Set(drycc, "unset-test", configVars)
+	actual, err := Set(drycc, "unset-test", configVars, true)
 	if err != nil {
 		t.Error(err)
 	}
@@ -449,7 +449,7 @@ func TestConfigRefs(t *testing.T) {
 		},
 	}
 
-	actual, err := Set(drycc, "setrefs-test", configVars)
+	actual, err := Set(drycc, "setrefs-test", configVars, true)
 	if err != nil {
 		t.Error(err)
 	}