extensions/git/src/commands.ts/CommandCenter/cleanAllUntracked
class CommandCenter:	async cleanAllUntracked(repository: Repository): Promise<void> {
		const resources = [...repository.workingTreeGroup.resourceStates, ...repository.untrackedGroup.resourceStates]
			.filter(r => r.type === Status.UNTRACKED || r.type === Status.IGNORED);

		if (resources.length === 0) {
			return;
		}

		if (resources.length === 1) {
			await this._cleanUntrackedChange(repository, resources[0]);
		} else {
			await this._cleanUntrackedChanges(repository, resources);
		}
	}