Add repository creation permissions field

AUTHORS

@@ -70,6 +70,7 @@ Dave Du Cros <davidducros@gmail.com>
 Dave Henderson <dhenderson@gmail.com>
 David Deng <daviddengcn@gmail.com>
 David Jannotta <djannotta@gmail.com>
+David Ji <github.com/davidji99>
 Davide Zipeto <dawez1@gmail.com>
 Dennis Webb <dennis@bluesentryit.com>
 Dhi Aurrahman <diorahman@rockybars.com>

github/github.go

@@ -150,6 +150,9 @@ const (
 
 	// https://developer.github.com/changes/2019-06-12-team-sync/
 	mediaTypeTeamSyncPreview = "application/vnd.github.team-sync-preview+json"
+
+	// https://developer.github.com/v3/previews/#repository-creation-permissions
+	mediaTypeMemberAllowedRepoCreationTypePreview = "application/vnd.github.surtur-preview+json"
 )
 
 // A Client manages communication with the GitHub API.

github/orgs.go

@@ -56,6 +56,10 @@ type Organization struct {
 	// MembersCanCreateRepos default value is true and is only used in Organizations.Edit.
 	MembersCanCreateRepos *bool `json:"members_can_create_repositories,omitempty"`
 
+	// MembersAllowedRepositoryCreationType denotes if organization members can create repositories
+	// and the type of repositories they can create. Possible values are: "all", "private", or "none".
+	MembersAllowedRepositoryCreationType *string `json:"members_allowed_repository_creation_type,omitempty"`
+
 	// API URLs
 	URL              *string `json:"url,omitempty"`
 	EventsURL        *string `json:"events_url,omitempty"`
@@ -160,6 +164,9 @@ func (s *OrganizationsService) Get(ctx context.Context, org string) (*Organizati
 		return nil, nil, err
 	}
 
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeMemberAllowedRepoCreationTypePreview)
+
 	organization := new(Organization)
 	resp, err := s.client.Do(ctx, req, organization)
 	if err != nil {

github/orgs_test.go

@@ -93,6 +93,7 @@ func TestOrganizationsService_Get(t *testing.T) {
 
 	mux.HandleFunc("/orgs/o", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "GET")
+		testHeader(t, r, "Accept", mediaTypeMemberAllowedRepoCreationTypePreview)
 		fmt.Fprint(w, `{"id":1, "login":"l", "url":"u", "avatar_url": "a", "location":"l"}`)
 	})