export interface Transport {
  writeFile: (signal: AbortSignal, file: string, contents: string) => Promise<void>;
  readFile: (signal: AbortSignal, file: string) => Promise<string>;
  pathExists: (signal: AbortSignal, file: string) => Promise<boolean>;
  isDirectory: (signal: AbortSignal, file: string) => Promise<boolean>;
  mkdir: (signal: AbortSignal, dirpath: string) => Promise<void>;
  readdir: (signal: AbortSignal, dirpath: string) => Promise<Array<{
    entry: string,
    isDirectory: boolean,
  }>>;
  modTime: (signal: AbortSignal, file: string) => Promise<number>;
  resolvePath: (signal: AbortSignal, path: string) => Promise<string>;
  shell: (signal: AbortSignal, command: string, timeout: number) => Promise<string>;
  close: () => Promise<void>;
}

export class TransportError extends Error {
  constructor(msg: string) {
    super(msg);
    this.name = this.constructor.name;
  }
}
export class CommandFailedError extends TransportError {}
export class AbortError extends TransportError {
  constructor() {
    super("Aborted");
  }
}