/** Lock file path: `<projectRoot>/.absolutejs/build.lock` where
 *  projectRoot is `dirname(buildDirectory)`. Single file (NOT a dir
 *  inside build/) — placing it inside .absolutejs avoids interfering
 *  with watcher includes scoped to src/, db/, assets/, styles/. */
export declare const lockPathForBuildDirectory: (buildDirectory: string) => string;
/** Update the metadata in an already-acquired lock (e.g. fill in the
 *  resolved dev-server port once it's been chosen). No-op if we don't
 *  hold the lock for this build dir. */
export declare const updateLockMetadata: (buildDirectory: string, updates: {
    pid?: number;
    port?: number | null;
}) => void;
export declare const acquireBuildDirectoryLock: (buildDirectory: string, options?: {
    port?: number | null;
    /** When true, an alive holder makes us wait (polling every
     *  250ms up to `waitTimeoutMs`) instead of throwing immediately.
     *  Default: true. Dev-server startup passes `wait: false` so
     *  the user gets a fast Vite-style error pointing them at the
     *  next free port. CLI build/compile leave it true so concurrent
     *  invocations against a shared outdir serialize cleanly. */
    wait?: boolean;
    waitTimeoutMs?: number;
}) => Promise<() => Promise<void>>;
export declare const withBuildDirectoryLock: <T>(buildDirectory: string, action: () => Promise<T>, options?: {
    port?: number | null;
    wait?: boolean;
    waitTimeoutMs?: number;
}) => Promise<T>;