/// <reference types="node" />
import { DotenvParseOutput } from 'dotenv';
import { Options as RollupPluginVueOptions } from 'rollup-plugin-vue';
import { CompilerOptions, SFCStyleCompileOptions, SFCAsyncStyleCompileOptions, SFCTemplateCompileOptions } from '@vue/compiler-sfc';
import { InputOptions as RollupInputOptions, OutputOptions as RollupOutputOptions, OutputChunk } from 'rollup';
import { ServerPlugin } from './server';
import { Resolver } from './resolver';
import { Transform, CustomBlockTransform } from './transform';
import { DepOptimizationOptions } from './optimizer';
import { IKoaProxiesOptions } from 'koa-proxies';
import { ServerOptions } from 'https';
export declare type PreprocessLang = NonNullable<SFCStyleCompileOptions['preprocessLang']>;
export declare type PreprocessOptions = SFCStyleCompileOptions['preprocessOptions'];
export declare type CssPreprocessOptions = Partial<Record<PreprocessLang, PreprocessOptions>>;
export { Resolver, Transform };
/**
 * Options shared between server and build.
 */
export interface SharedConfig {
    /**
     * Project root directory. Can be an absolute path, or a path relative from
     * the location of the config file itself.
     * @default process.cwd()
     */
    root?: string;
    /**
     * Import alias. The entries can either be exact request -> request mappings
     * (exact, no wildcard syntax), or request path -> fs directory mappings.
     * When using directory mappings, the key **must start and end with a slash**.
     *
     * Example `vite.config.js`:
     * ``` js
     * module.exports = {
     *   alias: {
     *     // alias package names
     *     'react': '@pika/react',
     *     'react-dom': '@pika/react-dom'
     *
     *     // alias a path to a fs directory
     *     // the key must start and end with a slash
     *     '/@foo/': path.resolve(__dirname, 'some-special-dir')
     *   }
     * }
     * ```
     */
    alias?: Record<string, string>;
    /**
     * Custom file transforms.
     */
    transforms?: Transform[];
    /**
     * Define global variable replacements.
     * Entries will be defined on `window` during dev and replaced during build.
     */
    define?: Record<string, any>;
    /**
     * Resolvers to map dev server public path requests to/from file system paths,
     * and optionally map module ids to public path requests.
     */
    resolvers?: Resolver[];
    /**
     * Configure dep optimization behavior.
     *
     * Example `vite.config.js`:
     * ``` js
     * module.exports = {
     *   optimizeDeps: {
     *     exclude: ['dep-a', 'dep-b']
     *   }
     * }
     * ```
     */
    optimizeDeps?: DepOptimizationOptions;
    /**
     * Options to pass to `@vue/compiler-dom`
     *
     * https://github.com/vuejs/vue-next/blob/master/packages/compiler-core/src/options.ts
     */
    vueCompilerOptions?: CompilerOptions;
    /**
     * Configure what tags/attributes to trasnform into asset url imports,
     * or disable the transform altogether with `false`.
     */
    vueTransformAssetUrls?: SFCTemplateCompileOptions['transformAssetUrls'];
    /**
     * The options for template block preprocessor render.
     */
    vueTemplatePreprocessOptions?: Record<string, SFCTemplateCompileOptions['preprocessOptions']>;
    /**
     * Transform functions for Vue custom blocks.
     *
     * Example `vue.config.js`:
     * ``` js
     * module.exports = {
     *   vueCustomBlockTransforms: {
     *     i18n: src => `export default Comp => { ... }`
     *   }
     * }
     * ```
     */
    vueCustomBlockTransforms?: Record<string, CustomBlockTransform>;
    /**
     * Configure what to use for jsx factory and fragment.
     * @default 'vue'
     */
    jsx?: 'vue' | 'preact' | 'react' | {
        factory?: string;
        fragment?: string;
    };
    /**
     * Environment mode
     */
    mode?: string;
    /**
     * CSS preprocess options
     */
    cssPreprocessOptions?: CssPreprocessOptions;
    /**
     * CSS modules options
     */
    cssModuleOptions?: SFCAsyncStyleCompileOptions['modulesOptions'];
    /**
     * Enable esbuild
     * @default true
     */
    enableEsbuild?: boolean;
    /**
     * Environment variables parsed from .env files
     * only ones starting with VITE_ are exposed on `import.meta.env`
     * @internal
     */
    env?: DotenvParseOutput;
}
export interface ServerConfig extends SharedConfig {
    hostname?: string;
    port?: number;
    open?: boolean;
    /**
     * Configure https.
     */
    https?: boolean;
    httpsOptions?: ServerOptions;
    /**
     * Configure custom proxy rules for the dev server. Uses
     * [`koa-proxies`](https://github.com/vagusX/koa-proxies) which in turn uses
     * [`http-proxy`](https://github.com/http-party/node-http-proxy). Each key can
     * be a path Full options
     * [here](https://github.com/http-party/node-http-proxy#options).
     *
     * Example `vite.config.js`:
     * ``` js
     * module.exports = {
     *   proxy: {
     *     // string shorthand
     *     '/foo': 'http://localhost:4567/foo',
     *     // with options
     *     '/api': {
     *       target: 'http://jsonplaceholder.typicode.com',
     *       changeOrigin: true,
     *       rewrite: path => path.replace(/^\/api/, '')
     *     }
     *   }
     * }
     * ```
     */
    proxy?: Record<string, string | IKoaProxiesOptions>;
    /**
     * A plugin function that configures the dev server. Receives a server plugin
     * context object just like the internal server plguins. Can also be an array
     * of multiple server plugin functions.
     */
    configureServer?: ServerPlugin | ServerPlugin[];
}
export interface BuildConfig extends SharedConfig {
    /**
     * Base public path when served in production.
     * @default '/'
     */
    base?: string;
    /**
     * Directory relative from `root` where build output will be placed. If the
     * directory exists, it will be removed before the build.
     * @default 'dist'
     */
    outDir?: string;
    /**
     * Directory relative from `outDir` where the built js/css/image assets will
     * be placed.
     * @default '_assets'
     */
    assetsDir?: string;
    /**
     * Static asset files smaller than this number (in bytes) will be inlined as
     * base64 strings. Default limit is `4096` (4kb). Set to `0` to disable.
     * @default 4096
     */
    assetsInlineLimit?: number;
    /**
     * Whether to code-split CSS. When enabled, CSS in async chunks will be
     * inlined as strings in the chunk and inserted via dynamically created
     * style tags when the chunk is loaded.
     * @default true
     */
    cssCodeSplit?: boolean;
    /**
     * Whether to generate sourcemap
     * @default false
     */
    sourcemap?: boolean;
    /**
     * Set to `false` to dsiable minification, or specify the minifier to use.
     * Available options are 'terser' or 'esbuild'.
     * @default 'terser'
     */
    minify?: boolean | 'terser' | 'esbuild';
    /**
     * Transpile target for esbuild.
     * Defaults to 'es2019' which transpiles optional chaining so it works with
     * terser.
     * @default 'es2019'
     */
    esbuildTarget?: string;
    /**
     * Build for server-side rendering, only as a CLI flag
     * for programmatic usage, use `ssrBuild` directly.
     * @internal
     */
    ssr?: boolean;
    /**
     * Will be passed to rollup.rollup()
     *
     * https://rollupjs.org/guide/en/#big-list-of-options
     */
    rollupInputOptions?: RollupInputOptions;
    /**
     * Will be passed to bundle.generate()
     *
     * https://rollupjs.org/guide/en/#big-list-of-options
     */
    rollupOutputOptions?: RollupOutputOptions;
    /**
     * Will be passed to rollup-plugin-vue
     *
     * https://github.com/vuejs/rollup-plugin-vue/blob/next/src/index.ts
     */
    rollupPluginVueOptions?: Partial<RollupPluginVueOptions>;
    /**
     * Will be passed to @rollup/plugin-node-resolve
     * https://github.com/rollup/plugins/tree/master/packages/node-resolve#dedupe
     */
    rollupDedupe?: string[];
    /**
     * Whether to log asset info to console
     * @default false
     */
    silent?: boolean;
    /**
     * Whether to write bundle to disk
     * @default true
     */
    write?: boolean;
    /**
     * Whether to emit index.html
     * @default true
     */
    emitIndex?: boolean;
    /**
     * Whether to emit assets other than JavaScript
     * @default true
     */
    emitAssets?: boolean;
    /**
     * Predicate function that determines whether a link rel=modulepreload shall be
     * added to the index.html for the chunk passed in
     */
    shouldPreload?: (chunk: OutputChunk) => boolean;
    /**
     * Enable 'rollup-plugin-vue'
     * @default true
     */
    enableRollupPluginVue?: boolean;
}
export interface UserConfig extends BuildConfig, ServerConfig {
    plugins?: Plugin[];
}
export interface Plugin extends Pick<UserConfig, 'alias' | 'transforms' | 'define' | 'resolvers' | 'configureServer' | 'vueCompilerOptions' | 'vueTransformAssetUrls' | 'vueTemplatePreprocessOptions' | 'vueCustomBlockTransforms' | 'rollupInputOptions' | 'rollupOutputOptions' | 'enableRollupPluginVue'> {
}
export declare type ResolvedConfig = UserConfig & {
    /**
     * Path of config file.
     */
    __path?: string;
};
export declare function resolveConfig(mode: string, configPath?: string): Promise<ResolvedConfig | undefined>;
export declare const defaultDefines: {
    __VUE_OPTIONS_API__: boolean;
    __VUE_PROD_DEVTOOLS__: boolean;
};