/// <reference types="node" />
import { Nullable } from '@salesforce/ts-types';
import * as childProcess from 'child_process';
import * as nodeFs from 'fs';
export declare type FsIfc = Pick<typeof nodeFs, 'statSync'>;
/**
 * Basic keychain interface.
 */
export interface PasswordStore {
    /**
     * Gets a password
     * @param opts cli level password options.
     * @param fn function callback for password.
     * @param retryCount number of reties to get the password.
     */
    getPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void, retryCount?: number): Promise<void>;
    /**
     * Sets a password.
     * @param opts cli level password options.
     * @param fn function callback for password.
     */
    setPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void): Promise<void>;
}
/**
 * @private
 */
export declare class KeychainAccess implements PasswordStore {
    private osImpl;
    private fsIfc;
    /**
     * Abstract prototype for general cross platform keychain interaction.
     * @param osImpl The platform impl for (linux, darwin, windows).
     * @param fsIfc The file system interface.
     */
    constructor(osImpl: OsImpl, fsIfc: FsIfc);
    /**
     * Validates the os level program is executable.
     */
    validateProgram(): Promise<void>;
    /**
     * Returns a password using the native program for credential management.
     * @param opts Options for the credential lookup.
     * @param fn Callback function (err, password).
     * @param retryCount Used internally to track the number of retries for getting a password out of the keychain.
     */
    getPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void, retryCount?: number): Promise<void>;
    /**
     * Sets a password using the native program for credential management.
     * @param opts Options for the credential lookup.
     * @param fn Callback function (err, password).
     */
    setPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void): Promise<void>;
}
interface ProgramOpts {
    account: string;
    service: string;
    password?: string;
}
interface OsImpl {
    getProgram(): string;
    getProgramOptions(opts: ProgramOpts): string[];
    getCommandFunc(opts: ProgramOpts, fn: (program: string, opts: string[]) => childProcess.ChildProcess): childProcess.ChildProcess;
    onGetCommandClose(code: number, stdout: string, stderr: string, opts: ProgramOpts, fn: (err: Nullable<Error>, result?: string) => void): Promise<void>;
    setProgramOptions(opts: ProgramOpts): string[];
    setCommandFunc(opts: ProgramOpts, fn: (program: string, opts: string[]) => childProcess.ChildProcess): childProcess.ChildProcess;
    onSetCommandClose(code: number, stdout: string, stderr: string, opts: ProgramOpts, fn: (err: Nullable<Error>) => void): Promise<void>;
}
/**
 * @@ignore
 */
export declare class GenericKeychainAccess implements PasswordStore {
    getPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void): Promise<void>;
    setPassword(opts: ProgramOpts, fn: (error: Nullable<Error>, password?: string) => void): Promise<void>;
    protected isValidFileAccess(cb: (error: Nullable<NodeJS.ErrnoException>) => Promise<void>): Promise<void>;
}
/**
 * @ignore
 */
export declare class GenericUnixKeychainAccess extends GenericKeychainAccess {
    protected isValidFileAccess(cb: (error: Nullable<Error>) => Promise<void>): Promise<void>;
}
/**
 * @ignore
 */
export declare class GenericWindowsKeychainAccess extends GenericKeychainAccess {
}
/**
 * @ignore
 */
export declare const keyChainImpl: {
    generic_unix: GenericUnixKeychainAccess;
    generic_windows: GenericWindowsKeychainAccess;
    darwin: KeychainAccess;
    linux: KeychainAccess;
    validateProgram: (programPath: string, fsIfc: Pick<typeof nodeFs, "statSync">, isExeIfc: (mode: number, gid: number, uid: number) => boolean) => Promise<void>;
};
export declare type KeyChain = GenericUnixKeychainAccess | GenericWindowsKeychainAccess | KeychainAccess;
export {};