import { FiledistExtractEntry, ManagedFileMetadata } from '../types';
/**
 * Derive the lock file path from the config file path.
 * Strips the `.yml` suffix from the config file basename and appends `.lock`.
 *
 * Examples:
 *   `/project/.filedist.yml`  → `/project/.filedist.lock`
 *   `/project/myconfig.yml`   → `/project/myconfig.lock`
 */
export declare function getLockfilePath(configFilePath: string): string;
export type LockfileData = {
    version: number;
    /** Maps package spec → resolved version/ref string. */
    packages: Record<string, string>;
    /**
     * Set definitions stored during install; used by check/purge/frozen-install
     * to operate without reading the user configuration file.
     */
    sets?: FiledistExtractEntry[];
    /** Maps output-dir key → pipe-delimited managed-file lines. */
    files?: Record<string, string[]>;
    /** SHA-256 checksum of packages + files + sets sections. Validated on every read. */
    checksum?: string;
};
/**
 * Compute a SHA-256 checksum over the packages, files, and sets sections of a
 * lockfile. The input is deterministic (keys sorted) so the result is stable
 * across writes.
 */
export declare function computeLockfileChecksum(data: Pick<LockfileData, 'packages' | 'files' | 'sets'>): string;
/**
 * Read a lock file from the given absolute path.
 * Returns undefined when the file does not exist.
 * Throws when the file exists but cannot be parsed or has a bad checksum.
 */
export declare function readLockfile(lockfilePath: string): LockfileData | undefined;
/**
 * Write a lock file to the given absolute path.
 */
export declare function writeLockfile(lockfilePath: string, data: LockfileData): void;
/**
 * Read the set definitions stored in a lock file.
 * Returns undefined when the file does not exist or has no sets.
 */
export declare function readSetsFromLockfile(lockfilePath: string): FiledistExtractEntry[] | undefined;
/**
 * Build a LockfileData object from a map of spec → resolved version and source.
 */
export declare function buildLockfileData(resolvedPackages: Map<string, {
    source: 'npm' | 'git' | 'local';
    resolvedVersion: string;
}>): LockfileData;
/**
 * Returns the key used in managed_files for a given output directory.
 * The key is relative to cwd, normalised to forward slashes.
 */
export declare function outputDirKey(cwd: string, outputDir: string): string;
/**
 * Read managed file entries for a specific output directory from a lock file.
 * Returns an empty array when the lock file or directory entry does not exist.
 */
export declare function readManagedFilesForDir(lockfilePath: string, cwd: string, outputDir: string): ManagedFileMetadata[];
/**
 * Write managed file entries for a specific output directory into a lock file.
 * Reads the current lock file, updates the entry for outputDir, and writes it back.
 * When entries is empty the key is removed.
 */
export declare function writeManagedFilesForDir(lockfilePath: string, cwd: string, outputDir: string, entries: ManagedFileMetadata[]): void;
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