import { Command, flags } from '@oclif/command';
import { StepManager } from './steps/step-manager';
export default abstract class BaseCommand extends Command {
    static flags: flags.Input<any>;
    static args: {
        name: string;
        description: string;
    }[];
    protected requireExistingExtension: boolean;
    run(): Promise<void>;
    protected welcomeMessage(): string;
    protected goodbyeMessage(): string;
    protected additionalPreRunChecks(_extRoot: string): Promise<void>;
    protected abstract steps(stepManager: StepManager): StepManager;
    protected getFlarumExtensionRoot(currDir: string): Promise<string>;
    protected confirmExtDir(extRoot: string): Promise<void>;
    protected ensureComposerInstallRan(extRoot: string): Promise<void>;
    /**
     * If false, files do not exist so no need to override.
     * If true, files should be overriden.
     * If user says no, will exit and not return anything.
     */
    protected confirmOverrideFiles(dir: string, pattern: string, confirmationMessage: string): Promise<boolean>;
    protected deleteFiles(dir: string, pattern: string): Promise<void>;
}