ref(client): add a Get method helper

pkg/client/client.go

@@ -98,6 +98,14 @@ func (c *Client) agent() string {
 	return fmt.Sprintf("helm/%s", version.Version)
 }
 
+func (c *Client) Get(endpoint string, v interface{}) error {
+	return c.CallService(endpoint, "GET", &v, nil)
+}
+
+func (c *Client) Delete(endpoint string, v interface{}) error {
+	return c.CallService(endpoint, "DELETE", &v, nil)
+}
+
 // CallService is a low-level function for making an API call.
 //
 // This calls the service and then unmarshals the returned data into dest.

pkg/client/client_test.go

@@ -102,5 +102,6 @@ func TestUserAgent(t *testing.T) {
 			}
 		}),
 	}
-	fc.setup().ListDeployments()
+	var nop struct{}
+	fc.setup().Get("/", &nop)
 }

pkg/client/deployments.go

@@ -32,11 +32,8 @@ import (
 // ListDeployments lists the deployments in DM.
 func (c *Client) ListDeployments() ([]string, error) {
 	var l []string
-	if err := c.CallService("deployments", "GET", &l, nil); err != nil {
-		return nil, err
-	}
-
-	return l, nil
+	err := c.Get("deployments", &l)
+	return l, err
 }
 
 // PostChart sends a chart to DM for deploying.
@@ -94,19 +91,15 @@ func (c *Client) PostChart(filename, deployname string) (string, error) {
 // GetDeployment retrieves the supplied deployment
 func (c *Client) GetDeployment(name string) (*common.Deployment, error) {
 	var deployment *common.Deployment
-	if err := c.CallService(fancypath.Join("deployments", name), "GET", &deployment, nil); err != nil {
-		return nil, err
-	}
-	return deployment, nil
+	err := c.Get(fancypath.Join("deployments", name), &deployment)
+	return deployment, err
 }
 
 // DeleteDeployment deletes the supplied deployment
 func (c *Client) DeleteDeployment(name string) (*common.Deployment, error) {
 	var deployment *common.Deployment
-	if err := c.CallService(filepath.Join("deployments", name), "DELETE", &deployment, nil); err != nil {
-		return nil, err
-	}
-	return deployment, nil
+	err := c.Delete(filepath.Join("deployments", name), &deployment)
+	return deployment, err
 }
 
 // PostDeployment posts a deployment object to the manager service.