export declare const WRANGLER_CONFIG_NAMES: readonly ["wrangler.json", "wrangler.jsonc", "wrangler.toml"];
export type UploadDirSource = (typeof WRANGLER_CONFIG_NAMES)[number] | "site-root";
export type UploadDirResolution = {
    /** Absolute path to stage and hand wrangler as the asset root. */
    uploadDir: string;
    /** Which input decided it, so the caller logs the reason and not the value alone. */
    source: UploadDirSource;
    /** The verbatim declared value, present only when a config decided it. */
    declared?: string;
};
/** Resolves the directory whose contents become the served root for `dir`.
 *
 *  A tree that declares nothing keeps the site root, which is what every deploy
 *  did before Task 1917. A tree that declares an output dir gets that dir. A
 *  tree that declares one which cannot be resolved is an error naming the path:
 *  falling back to the site root here is exactly the defect this closes, because
 *  the deploy then succeeds while serving the wrong root. */
export declare function resolveUploadDir(dir: string): Promise<UploadDirResolution>;
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