export declare enum BuildTrigger {
    exists = "exists",
    new = "new",
    hashExists = "hashExists"
}
export declare class ImageBuildStates {
    [imageName: string]: BuildTrigger;
}
export declare class BuildArtefactState {
    buildState: ImageBuildStates;
}
export declare class BuildArtefactService {
    private configDirectory;
    private artefactPath;
    setConfigDirectory(configDirectory: string): void;
    /**
     * Adds whether or not a build took place.
     * @param label The label (or image name) that we're setting
     * @param buildTrigger The status of this label
     */
    addBuild(label: string, buildTrigger: BuildTrigger): Promise<void>;
    getCurrentArtefacts(): Promise<BuildArtefactState>;
    private readCurrentArtefactsFromFs;
}