/// <reference types="node" />
import { SpawnOptions } from 'child_process';
import { IPrerequisiteError } from './error';
import { INebulaPlatformConfigDeploy, INebulaHelmConfig, INebulaPlatformConfig, NebulaBuildServiceType, INebulaPlatformServicesConfig } from '../typings/config';
import { IHelmDependency, IHelmChart } from '../typings/helm';
import { NamingService } from '../services/NamingService';
import { Maybe } from '../../typings/misc';
import { FilePath } from '../../typings/opaque';
export declare namespace Helm {
    const exe = "helm";
    /**
     * Test that helm version is the correct
     */
    function checkHelmVersion(expectedVersion: string, cwd?: string): Promise<boolean>;
    function helmClean(helmPath: string): Promise<void>;
    function initialiseEnv(root: string): Promise<void>;
    /**
     * Set helm to a version if using helmenv
     */
    function setHelmVersion(desiredVersion: string, helmVersionFilePath: string): Promise<boolean>;
    /**
     * Create base helm chart and add missing components
     */
    function helmCreate(helmPath: string): Promise<Maybe<Error>>;
    /**
     * Selects helm chart details based on a service type
     * @param {NebulaBuildServiceType} serviceType serviceType
     * @param {INebulaPlatformConfigDeploy} deploy deploy
     * @param {INebulaPlatformServicesConfig} services services
     * @returns {IHelmChart} helm chart
     */
    function selectHelmChart(serviceType: NebulaBuildServiceType, deploy: INebulaPlatformConfigDeploy, services: INebulaPlatformServicesConfig): IHelmChart;
    function helmBuildCoreTemplates(secretsTemplatePath: FilePath, naming: NamingService): Promise<void>;
    function helmRebuild(helmPath: string, dependencies: IHelmDependency[], config: INebulaPlatformConfig): Promise<Maybe<Error>>;
    function checkHelmPrerequisites(config: INebulaHelmConfig): Promise<IPrerequisiteError[]>;
    function lint(chartPath: string, { strict, ...options }: SpawnOptions & {
        strict: boolean;
    }, ...valuesFiles: string[]): Promise<void>;
    function repoAdd(name: string, path: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<void>;
    function showChart(chartName: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<string>;
    function getLocalChartVersion(chartName: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<string>;
    function depBuild(name: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<void>;
    function packageChart(name: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<void>;
    function chartVersionExists(name: string, version: string, options?: SpawnOptions & {
        allowFail?: boolean;
    }): Promise<boolean>;
    function template(chartPath: string, options?: SpawnOptions, ...valuesFiles: string[]): Promise<void>;
    /**
     * Delete deployments that are not successful as this will cause errors in deployments. Supported states are failed and pending-install.
     */
    function deleteFailed(cwd: string): Promise<void>;
    function packageLocalChartIfNotPublished(chartName: string, cwd: string): Promise<{
        chartVersion: string;
        exists: boolean;
    }>;
}