Adds method for getting a single Repo Deployment

github/repos_deployments.go

@@ -82,6 +82,27 @@ func (s *RepositoriesService) ListDeployments(owner, repo string, opt *Deploymen
 	return *deployments, resp, err
 }
 
+// GetDeployment returns a single deployment of a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/deployments/
+// Note: GetDeployment uses the undocumented GitHub API endpoint /repos/:owner/:repo/deployments/:id.
+func (s *RepositoriesService) GetDeployment(owner, repo string, deploymentID int) (*Deployment, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/deployments/%v", owner, repo, deploymentID)
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	deployment := new(Deployment)
+	resp, err := s.client.Do(req, deployment)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return deployment, resp, err
+}
+
 // CreateDeployment creates a new deployment for a repository.
 //
 // GitHub API docs: https://developer.github.com/v3/repos/deployments/#create-a-deployment

github/repos_deployments_test.go

@@ -35,6 +35,27 @@ func TestRepositoriesService_ListDeployments(t *testing.T) {
 	}
 }
 
+func TestRepositoriesService_GetDeployment(t *testing.T) {
+	setup()
+	defer teardown()
+
+	mux.HandleFunc("/repos/o/r/deployments/3", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		fmt.Fprint(w, `{"id":3}`)
+	})
+
+	deployment, _, err := client.Repositories.GetDeployment("o", "r", 3)
+	if err != nil {
+		t.Errorf("Repositories.GetDeployment returned error: %v", err)
+	}
+
+	want := &Deployment{ID: Int(3)}
+
+	if !reflect.DeepEqual(deployment, want) {
+		t.Errorf("Repositories.GetDeployment returned %+v, want %+v", deployment, want)
+	}
+}
+
 func TestRepositoriesService_CreateDeployment(t *testing.T) {
 	setup()
 	defer teardown()