import type { CatalogEntry } from './types.js';
export declare const catalogDir: (root: string) => string;
export declare const packagesDir: (root: string) => string;
/** sha256 over (u32 pathLen, path, u64 byteLen, bytes) for every file, paths sorted by code unit. */
export declare function packageDigest(dir: string): string;
/** `<packages>/<name>/<sha12>`, proven to stay inside the store after realpath. */
export declare function resolvePackageDir(root: string, entry: Pick<CatalogEntry, 'id' | 'sha256'>): string;
export type DigestCheck = {
    ok: true;
    dir: string;
} | {
    ok: false;
    reason: 'missing-package' | 'digest-mismatch' | 'escaping-path';
};
export declare function verifyEntry(root: string, entry: Pick<CatalogEntry, 'id' | 'sha256'>): DigestCheck;
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