Support specifying repository names (google#2123)

Author: ericnorris

github/apps.go

@@ -47,6 +47,10 @@ type InstallationTokenOptions struct {
 	// Providing repository IDs restricts the access of an installation token to specific repositories.
 	RepositoryIDs []int64 `json:"repository_ids,omitempty"`
 
+	// The names of the repositories that the installation token can access.
+	// Providing repository names restricts the access of an installation token to specific repositories.
+	Repositories []string `json:"repositories,omitempty"`
+
 	// The permissions granted to the access token.
 	// The permissions object includes the permission names and their access type.
 	Permissions *InstallationPermissions `json:"permissions,omitempty"`

github/apps_test.go

@@ -387,6 +387,7 @@ func TestAppsService_CreateInstallationTokenWithOptions(t *testing.T) {
 
 	installationTokenOptions := &InstallationTokenOptions{
 		RepositoryIDs: []int64{1234},
+		Repositories:  []string{"foo"},
 		Permissions: &InstallationPermissions{
 			Contents: String("write"),
 			Issues:   String("read"),