import { type ChildProcess, type SpawnOptions } from 'node:child_process';
import type { Command } from './plan.js';
import type { DownloadedFile, FolderState, RunResult, StarterDeps } from './run.js';
export type SpawnFn = (command: string, args: string[], options: SpawnOptions) => ChildProcess;
export interface RunOptions {
    platform?: NodeJS.Platform;
    spawnFn?: SpawnFn;
    env?: NodeJS.ProcessEnv;
}
/** Runs one child process and resolves with its exit code (null when it could not start). */
export declare function runProcess(command: Command, output: 'inherit' | 'quiet', options?: RunOptions): Promise<RunResult>;
/** Asks one question on the terminal. Resolves with an empty string when the input ends. */
export declare function askQuestion(question: string): Promise<string>;
export declare function inspectFolder(path: string): FolderState;
export declare function writeFiles(folder: string, files: readonly DownloadedFile[]): void;
/** The version in this package's package.json (one folder above the built files). */
export declare function readOwnVersion(read?: (url: URL) => string): string;
/** `uid:gid` of the current user, or null on Windows where Node has no `getuid`. */
export declare function hostUserOption(ids?: {
    getuid?: () => number;
    getgid?: () => number;
}): string | null;
export declare function createNodeDeps(): StarterDeps;