import type { LockFile, LockableCommand } from '../types/index.js';
import type { ScaffoldError, ScaffoldWarning } from '../types/index.js';
import type { StatePathResolver } from './state-path-resolver.js';
export declare function getLockPath(projectRoot: string, pathResolver?: StatePathResolver): string;
/** Check whether a lock is stale (holder process no longer running). */
export declare function isStale(lock: LockFile): boolean;
/** Read lock file if exists; return null if absent or corrupt. */
export declare function checkLock(projectRoot: string, pathResolver?: StatePathResolver): LockFile | null;
/**
 * Attempt to acquire .scaffold/lock.json advisory lock.
 * Returns acquired: false with warning on contention, or error on other failure.
 */
export declare function acquireLock(projectRoot: string, command: LockableCommand, step?: string, pathResolver?: StatePathResolver): {
    acquired: boolean;
    warning?: ScaffoldWarning;
    error?: ScaffoldError;
};
/** Release lock by deleting .scaffold/lock.json (only if current process holds it). */
export declare function releaseLock(projectRoot: string, pathResolver?: StatePathResolver): void;
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