Add support for RepositoriesService ListBranches

github/git_commits.go

@@ -19,6 +19,7 @@ type Commit struct {
 	Tree      *Tree         `json:"tree,omitempty"`
 	Parents   []Commit      `json:"parents,omitempty"`
 	Stats     *CommitStats  `json:"stats,omitempty"`
+	URL       *string       `json:url,omitempty"`
 }
 
 func (c Commit) String() string {

github/repos.go

@@ -309,3 +309,28 @@ func (s *RepositoriesService) ListLanguages(owner string, repository string) (ma
 
 	return languages, resp, err
 }
+
+// Branch represents a repository branch
+type Branch struct {
+	Name   *string `json:"name,omitempty"`
+	Commit *Commit
+}
+
+// ListBranches lists branches for the specified repository.
+//
+// GitHub API docs: http://developer.github.com/v3/repos/#list-branches
+func (s *RepositoriesService) ListBranches(owner string, repository string) ([]Branch, *Response, error) {
+	u := fmt.Sprintf("/repos/%v/%v/branches", owner, repository)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	branches := new([]Branch)
+	resp, err := s.client.Do(req, branches)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return *branches, resp, err
+}

github/repos_test.go

@@ -286,6 +286,26 @@ func TestRepositoriesService_ListLanguages(t *testing.T) {
 	}
 }
 
+func TestRepositoriesService_ListBranches(t *testing.T) {
+	setup()
+	defer teardown()
+
+	mux.HandleFunc("/repos/o/r/branches", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		fmt.Fprint(w, `[{"name":"master", "commit" : {"sha" : "a57781", "url" : "https://api.github.com/repos/o/r/commits/a57781"}}]`)
+	})
+
+	branches, _, err := client.Repositories.ListBranches("o", "r")
+	if err != nil {
+		t.Errorf("Repositories.ListBranches returned error: %v", err)
+	}
+
+	want := []Branch{{Name: String("master"), Commit: &Commit{SHA: String("a57781"), URL: String("https://api.github.com/repos/o/r/commits/a57781")}}}
+	if !reflect.DeepEqual(branches, want) {
+		t.Errorf("Repositories.ListBranches returned %+v, want %+v", branches, want)
+	}
+}
+
 func TestRepositoriesService_ListLanguages_invalidOwner(t *testing.T) {
 	_, _, err := client.Repositories.ListLanguages("%", "%")
 	testURLParseError(t, err)