electron-vite/src/config.ts

541 lines
16 KiB
TypeScript

import path from 'node:path'
import fs from 'node:fs'
import { pathToFileURL } from 'node:url'
import { createRequire } from 'node:module'
import colors from 'picocolors'
import {
type UserConfig as ViteConfig,
type ConfigEnv,
type PluginOption,
type Plugin,
type BuildEnvironmentOptions as ViteBuildOptions,
type LogLevel,
createLogger,
mergeConfig,
normalizePath
} from 'vite'
import { build } from 'esbuild'
import {
electronMainConfigPresetPlugin,
electronMainConfigValidatorPlugin,
electronPreloadConfigPresetPlugin,
electronPreloadConfigValidatorPlugin,
electronRendererConfigPresetPlugin,
electronRendererConfigValidatorPlugin
} from './plugins/electron'
import assetPlugin from './plugins/asset'
import workerPlugin from './plugins/worker'
import importMetaPlugin from './plugins/importMeta'
import esmShimPlugin from './plugins/esmShim'
import modulePathPlugin from './plugins/modulePath'
import isolateEntriesPlugin from './plugins/isolateEntries'
import { type ExternalOptions, externalizeDepsPlugin } from './plugins/externalizeDeps'
import { type BytecodeOptions, bytecodePlugin } from './plugins/bytecode'
import { isObject, isFilePathESM, deepClone, asyncFlatten } from './utils'
export { defineConfig as defineViteConfig } from 'vite'
interface IsolatedEntriesMixin {
/**
* Build each entry point as an isolated bundle without code splitting.
*
* When enabled, each entry will include all its dependencies inline,
* preventing automatic code splitting across entries and ensuring each
* output file is fully standalone.
*
* **Important**: When using `isolatedEntries` in `preload` config, you
* should also disable `build.externalizeDeps` to ensure third-party dependencies
* from `node_modules` are bundled together, which is required for Electron
* sandbox support.
*
* @experimental
* @default false
*/
isolatedEntries?: boolean
}
interface ExternalizeDepsMixin {
/**
* Options pass on to `externalizeDeps` plugin in electron-vite.
*
* Automatically externalize dependencies.
*
* @default true
*/
externalizeDeps?: boolean | ExternalOptions
}
interface BytecodeMixin {
/**
* Options pass on to `bytecode` plugin in electron-vite.
* https://electron-vite.org/guide/source-code-protection#bytecodeplugin-options
*
* Compile source code to v8 bytecode.
*/
bytecode?: boolean | BytecodeOptions
}
interface MainBuildOptions extends ViteBuildOptions, ExternalizeDepsMixin, BytecodeMixin {}
interface PreloadBuildOptions extends ViteBuildOptions, ExternalizeDepsMixin, BytecodeMixin, IsolatedEntriesMixin {}
interface RendererBuildOptions extends ViteBuildOptions, IsolatedEntriesMixin {}
interface BaseViteConfig<T> extends Omit<ViteConfig, 'build'> {
/**
* Build specific options
*/
build?: T
}
export interface MainViteConfig extends BaseViteConfig<MainBuildOptions> {}
export interface PreloadViteConfig extends BaseViteConfig<PreloadBuildOptions> {}
export interface RendererViteConfig extends BaseViteConfig<RendererBuildOptions> {}
export interface UserConfig {
/**
* Vite config options for electron main process
*
* @see https://vitejs.dev/config/
*/
main?: MainViteConfig
/**
* Vite config options for electron renderer process
*
* @see https://vitejs.dev/config/
*/
renderer?: RendererViteConfig
/**
* Vite config options for electron preload scripts
*
* @see https://vitejs.dev/config/
*/
preload?: PreloadViteConfig
}
export type ElectronViteConfigFnObject = (env: ConfigEnv) => UserConfig
export type ElectronViteConfigFnPromise = (env: ConfigEnv) => Promise<UserConfig>
export type ElectronViteConfigFn = (env: ConfigEnv) => UserConfig | Promise<UserConfig>
export type ElectronViteConfigExport =
| UserConfig
| Promise<UserConfig>
| ElectronViteConfigFnObject
| ElectronViteConfigFnPromise
| ElectronViteConfigFn
/**
* Type helper to make it easier to use `electron.vite.config.*`
* accepts a direct {@link UserConfig} object, or a function that returns it.
* The function receives a object that exposes two properties:
* `command` (either `'build'` or `'serve'`), and `mode`.
*/
export function defineConfig(config: UserConfig): UserConfig
export function defineConfig(config: Promise<UserConfig>): Promise<UserConfig>
export function defineConfig(config: ElectronViteConfigFnObject): ElectronViteConfigFnObject
export function defineConfig(config: ElectronViteConfigFnPromise): ElectronViteConfigFnPromise
export function defineConfig(config: ElectronViteConfigExport): ElectronViteConfigExport
export function defineConfig(config: ElectronViteConfigExport): ElectronViteConfigExport {
return config
}
export type InlineConfig = Omit<ViteConfig, 'base'> & {
configFile?: string | false
envFile?: false
ignoreConfigWarning?: boolean
}
export interface ResolvedConfig {
config?: UserConfig
configFile?: string
configFileDependencies: string[]
}
export async function resolveConfig(
inlineConfig: InlineConfig,
command: 'build' | 'serve',
defaultMode = 'development'
): Promise<ResolvedConfig> {
const config = inlineConfig
const mode = inlineConfig.mode || defaultMode
process.env.NODE_ENV = defaultMode
let userConfig: UserConfig | undefined
let configFileDependencies: string[] = []
let { configFile } = config
if (configFile !== false) {
const configEnv = {
mode,
command
}
const loadResult = await loadConfigFromFile(
configEnv,
configFile,
config.root,
config.logLevel,
config.ignoreConfigWarning
)
if (loadResult) {
const root = config.root
delete config.root
delete config.configFile
config.configFile = false
const outDir = config.build?.outDir
if (loadResult.config.main) {
const mainViteConfig: MainViteConfig = mergeConfig(loadResult.config.main, deepClone(config))
mainViteConfig.mode = inlineConfig.mode || mainViteConfig.mode || defaultMode
if (outDir) {
resetOutDir(mainViteConfig, outDir, 'main')
}
const configDrivenPlugins: PluginOption[] = await resolveConfigDrivenPlugins(mainViteConfig)
const builtInMainPlugins: PluginOption[] = [
electronMainConfigPresetPlugin({ root }),
electronMainConfigValidatorPlugin(),
assetPlugin(),
workerPlugin(),
modulePathPlugin(
mergeConfig(
{
plugins: [
electronMainConfigPresetPlugin({ root }),
assetPlugin(),
importMetaPlugin(),
esmShimPlugin(),
...configDrivenPlugins
]
},
mainViteConfig
)
),
importMetaPlugin(),
esmShimPlugin(),
...configDrivenPlugins
]
mainViteConfig.plugins = builtInMainPlugins.concat(mainViteConfig.plugins || [])
loadResult.config.main = mainViteConfig
}
if (loadResult.config.preload) {
const preloadViteConfig: PreloadViteConfig = mergeConfig(loadResult.config.preload, deepClone(config))
preloadViteConfig.mode = inlineConfig.mode || preloadViteConfig.mode || defaultMode
if (outDir) {
resetOutDir(preloadViteConfig, outDir, 'preload')
}
const configDrivenPlugins: PluginOption[] = await resolveConfigDrivenPlugins(preloadViteConfig)
const builtInPreloadPlugins: PluginOption[] = [
electronPreloadConfigPresetPlugin({ root }),
electronPreloadConfigValidatorPlugin(),
assetPlugin(),
importMetaPlugin(),
esmShimPlugin(),
...configDrivenPlugins
]
if (preloadViteConfig.build?.isolatedEntries) {
builtInPreloadPlugins.push(
isolateEntriesPlugin(
mergeConfig(
{
plugins: [
electronPreloadConfigPresetPlugin({ root }),
assetPlugin(),
importMetaPlugin(),
esmShimPlugin(),
...configDrivenPlugins
]
},
preloadViteConfig
)
)
)
}
preloadViteConfig.plugins = builtInPreloadPlugins.concat(preloadViteConfig.plugins)
loadResult.config.preload = preloadViteConfig
}
if (loadResult.config.renderer) {
const rendererViteConfig: RendererViteConfig = mergeConfig(loadResult.config.renderer, deepClone(config))
rendererViteConfig.mode = inlineConfig.mode || rendererViteConfig.mode || defaultMode
if (outDir) {
resetOutDir(rendererViteConfig, outDir, 'renderer')
}
const builtInRendererPlugins: PluginOption[] = [
electronRendererConfigPresetPlugin({ root }),
electronRendererConfigValidatorPlugin()
]
if (rendererViteConfig.build?.isolatedEntries) {
builtInRendererPlugins.push(
isolateEntriesPlugin(
mergeConfig(
{
plugins: [electronRendererConfigPresetPlugin({ root })]
},
rendererViteConfig
)
)
)
}
rendererViteConfig.plugins = builtInRendererPlugins.concat(rendererViteConfig.plugins || [])
loadResult.config.renderer = rendererViteConfig
}
userConfig = loadResult.config
configFile = loadResult.path
configFileDependencies = loadResult.dependencies
}
}
const resolved: ResolvedConfig = {
config: userConfig,
configFile: configFile ? normalizePath(configFile) : undefined,
configFileDependencies
}
return resolved
}
function resetOutDir(config: ViteConfig, outDir: string, subOutDir: string): void {
let userOutDir = config.build?.outDir
if (outDir === userOutDir) {
userOutDir = path.resolve(config.root || process.cwd(), outDir, subOutDir)
if (config.build) {
config.build.outDir = userOutDir
} else {
config.build = { outDir: userOutDir }
}
}
}
async function resolveConfigDrivenPlugins(config: MainViteConfig | PreloadViteConfig): Promise<PluginOption[]> {
const userPlugins = (await asyncFlatten(config.plugins || [])).filter(Boolean) as Plugin[]
const configDrivenPlugins: PluginOption[] = []
const hasExternalizeDepsPlugin = userPlugins.some(p => p.name === 'vite:externalize-deps')
if (!hasExternalizeDepsPlugin) {
const externalOptions = config.build?.externalizeDeps ?? true
if (externalOptions) {
isOptions<ExternalOptions>(externalOptions)
? configDrivenPlugins.push(externalizeDepsPlugin(externalOptions))
: configDrivenPlugins.push(externalizeDepsPlugin())
}
}
const hasBytecodePlugin = userPlugins.some(p => p.name === 'vite:bytecode')
if (!hasBytecodePlugin) {
const bytecodeOptions = config.build?.bytecode
if (bytecodeOptions) {
isOptions<BytecodeOptions>(bytecodeOptions)
? configDrivenPlugins.push(bytecodePlugin(bytecodeOptions))
: configDrivenPlugins.push(bytecodePlugin())
}
}
return configDrivenPlugins
}
function isOptions<T extends object>(value: boolean | T): value is T {
return typeof value === 'object' && value !== null
}
const CONFIG_FILE_NAME = 'electron.vite.config'
export async function loadConfigFromFile(
configEnv: ConfigEnv,
configFile?: string,
configRoot: string = process.cwd(),
logLevel?: LogLevel,
ignoreConfigWarning = false
): Promise<{
path: string
config: UserConfig
dependencies: string[]
}> {
if (configFile && /^vite.config.(js|ts|mjs|cjs|mts|cts)$/.test(configFile)) {
throw new Error(`config file cannot be named ${configFile}.`)
}
const resolvedPath = configFile
? path.resolve(configFile)
: findConfigFile(configRoot, ['js', 'ts', 'mjs', 'cjs', 'mts', 'cts'])
if (!resolvedPath) {
return {
path: '',
config: { main: {}, preload: {}, renderer: {} },
dependencies: []
}
}
const isESM = isFilePathESM(resolvedPath)
try {
const { code, dependencies } = await bundleConfigFile(resolvedPath, isESM)
const configExport = await loadConfigFormBundledFile(configRoot, resolvedPath, code, isESM)
const config = await (typeof configExport === 'function' ? configExport(configEnv) : configExport)
if (!isObject(config)) {
throw new Error(`config must export or return an object`)
}
if (!ignoreConfigWarning) {
const missingFields = ['main', 'renderer', 'preload'].filter(field => !config[field])
if (missingFields.length > 0) {
createLogger(logLevel).warn(
`${colors.yellow(colors.bold('(!)'))} ${colors.yellow(`${missingFields.join(' and ')} config is missing`)}\n`
)
}
}
return {
path: normalizePath(resolvedPath),
config,
dependencies
}
} catch (e) {
createLogger(logLevel).error(colors.red(`failed to load config from ${resolvedPath}`), { error: e as Error })
throw e
}
}
function findConfigFile(configRoot: string, extensions: string[]): string {
for (const ext of extensions) {
const configFile = path.resolve(configRoot, `${CONFIG_FILE_NAME}.${ext}`)
if (fs.existsSync(configFile)) {
return configFile
}
}
return ''
}
async function bundleConfigFile(fileName: string, isESM: boolean): Promise<{ code: string; dependencies: string[] }> {
const dirnameVarName = '__electron_vite_injected_dirname'
const filenameVarName = '__electron_vite_injected_filename'
const importMetaUrlVarName = '__electron_vite_injected_import_meta_url'
const result = await build({
absWorkingDir: process.cwd(),
entryPoints: [fileName],
write: false,
target: ['node20'],
platform: 'node',
bundle: true,
format: isESM ? 'esm' : 'cjs',
sourcemap: false,
metafile: true,
define: {
__dirname: dirnameVarName,
__filename: filenameVarName,
'import.meta.url': importMetaUrlVarName
},
plugins: [
{
name: 'externalize-deps',
setup(build): void {
build.onResolve({ filter: /.*/ }, args => {
const id = args.path
if (id[0] !== '.' && !path.isAbsolute(id)) {
return {
external: true
}
}
return null
})
}
},
{
name: 'replace-import-meta',
setup(build): void {
build.onLoad({ filter: /\.[cm]?[jt]s$/ }, async args => {
const contents = await fs.promises.readFile(args.path, 'utf8')
const injectValues =
`const ${dirnameVarName} = ${JSON.stringify(path.dirname(args.path))};` +
`const ${filenameVarName} = ${JSON.stringify(args.path)};` +
`const ${importMetaUrlVarName} = ${JSON.stringify(pathToFileURL(args.path).href)};`
return {
loader: args.path.endsWith('ts') ? 'ts' : 'js',
contents: injectValues + contents
}
})
}
}
]
})
const { text } = result.outputFiles[0]
return {
code: text,
dependencies: result.metafile ? Object.keys(result.metafile.inputs) : []
}
}
interface NodeModuleWithCompile extends NodeModule {
/* eslint-disable-next-line @typescript-eslint/no-explicit-any */
_compile(code: string, filename: string): any
}
const _require = createRequire(import.meta.url)
async function loadConfigFormBundledFile(
configRoot: string,
configFile: string,
bundledCode: string,
isESM: boolean
): Promise<ElectronViteConfigExport> {
if (isESM) {
const fileNameTmp = path.resolve(configRoot, `${CONFIG_FILE_NAME}.${Date.now()}.mjs`)
fs.writeFileSync(fileNameTmp, bundledCode)
const fileUrl = pathToFileURL(fileNameTmp)
try {
return (await import(fileUrl.href)).default
} finally {
try {
fs.unlinkSync(fileNameTmp)
} catch {}
}
} else {
const extension = path.extname(configFile)
const realFileName = fs.realpathSync(configFile)
const loaderExt = extension in _require.extensions ? extension : '.js'
const defaultLoader = _require.extensions[loaderExt]!
_require.extensions[loaderExt] = (module: NodeModule, filename: string): void => {
if (filename === realFileName) {
;(module as NodeModuleWithCompile)._compile(bundledCode, filename)
} else {
defaultLoader(module, filename)
}
}
delete _require.cache[_require.resolve(configFile)]
const raw = _require(configFile)
_require.extensions[loaderExt] = defaultLoader
return raw.__esModule ? raw.default : raw
}
}