import { type ChildProcess } from 'child_process';
import type { LaunchHostType } from './launch-spec.js';
export interface WorkerHostCommand {
    executable: string;
    args: string[];
    options: {
        cwd: string;
        env: NodeJS.ProcessEnv;
        detached?: boolean;
        stdio?: ['ignore', number, number] | 'ignore';
        windowsHide: true;
    };
}
export interface WorkerHostDeps {
    platform?: NodeJS.Platform;
    nodePath?: string;
    spawnProcess?: (command: WorkerHostCommand) => ChildProcess | {
        pid?: number;
        unref?: () => void;
    };
    uid?: number;
}
export interface WorkerHostResult {
    kind: 'detached' | 'systemd-transient' | 'launchd-temporary';
    pid?: number;
    command: WorkerHostCommand;
    artifactPath?: string;
    serviceIdentifier?: string;
    started: Promise<void>;
}
export declare function getPackagedWorkerPath(): string;
export declare function startUpgradeWorker(input: {
    jobId: string;
    jobPath: string;
    workerPath: string;
    hostType: LaunchHostType;
    testFailLocalHealthVersion?: string;
}, deps?: WorkerHostDeps): WorkerHostResult;
export declare function cleanupUpgradeWorkerHost(result: WorkerHostResult, deps?: WorkerHostDeps): void;