import type { PiRuntimeStorage } from "./pi-runtime-storage.js";
export interface ExtensionResource {
    readonly path: string;
    readonly enabled: boolean;
    readonly metadata: {
        readonly scope: string;
        readonly origin?: string;
        readonly baseDir?: string;
    };
}
export interface ExtensionSnapshot {
    readonly paths: readonly string[];
    readonly sourcePaths: readonly string[];
    readonly digest: string;
    readonly entries: number;
    readonly bytes: number;
}
/** Capability paths have already been canonicalized and validated by their profile. */
export declare function extensionPathsWithCapabilities(snapshot: ExtensionSnapshot, capabilityPaths: readonly string[]): readonly string[];
export declare function assertSameExtensionSnapshot(stored: string | undefined, current: string): void;
export declare function mirroredExtensionStagePath(destination: string, source: string): string;
export declare function snapshotExtensionResources(resources: readonly ExtensionResource[], destination: string, signal?: AbortSignal, storage?: PiRuntimeStorage, budget?: {
    readonly entries: number;
    readonly bytes: number;
}, excludedPaths?: readonly string[]): Promise<ExtensionSnapshot>;
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