feat: add --rendererOnly flag to dev command

src/cli.ts

@@ -60,7 +60,8 @@ cli
   .alias('dev')
   .option('-w, --watch', `[boolean] rebuilds when main process or preload script modules have changed on disk`)
   .option('--remoteDebuggingPort <port>', `[string] port for remote debugging`)
-  .action(async (root: string, options: { remoteDebuggingPort?: string } & GlobalCLIOptions) => {
+  .option('--rendererOnly', `[boolean] only dev server for the renderer`)
+  .action(async (root: string, options: { remoteDebuggingPort?: string; rendererOnly: boolean } & GlobalCLIOptions) => {
     if (options.remoteDebuggingPort) {
       process.env.REMOTE_DEBUGGING_PORT = options.remoteDebuggingPort
     }
@@ -69,7 +70,7 @@ cli
     const inlineConfig = createInlineConfig(root, options)
 
     try {
-      await createServer(inlineConfig)
+      await createServer(inlineConfig, { rendererOnly: options.rendererOnly })
     } catch (e) {
       const error = e as Error
       createLogger(options.logLevel).error(

src/server.ts

@@ -12,7 +12,10 @@ import { type InlineConfig, resolveConfig } from './config'
 import { resolveHostname } from './utils'
 import { startElectron } from './electron'
 
-export async function createServer(inlineConfig: InlineConfig = {}): Promise<void> {
+export async function createServer(
+  inlineConfig: InlineConfig = {},
+  options: { rendererOnly?: boolean }
+): Promise<void> {
   process.env.NODE_ENV_ELECTRON_VITE = 'development'
   const config = await resolveConfig(inlineConfig, 'serve', 'development')
   if (config.config) {
@@ -22,7 +25,7 @@ export async function createServer(inlineConfig: InlineConfig = {}): Promise<voi
     let ps: ChildProcessWithoutNullStreams | undefined
 
     const mainViteConfig = config.config?.main
-    if (mainViteConfig) {
+    if (mainViteConfig && !options.rendererOnly) {
       const watchHook = (): void => {
         logger.info(colors.green(`\nrebuild the electron main process successfully`))
 
@@ -43,7 +46,7 @@ export async function createServer(inlineConfig: InlineConfig = {}): Promise<voi
     }
 
     const preloadViteConfig = config.config?.preload
-    if (preloadViteConfig) {
+    if (preloadViteConfig && !options.rendererOnly) {
       logger.info(colors.gray(`\n-----\n`))
 
       const watchHook = (): void => {
@@ -61,6 +64,14 @@ export async function createServer(inlineConfig: InlineConfig = {}): Promise<voi
       logger.info(colors.green(`\nbuild the electron preload files successfully`))
     }
 
+    if (options.rendererOnly) {
+      logger.warn(
+        `\n${colors.yellow(colors.bold('warn'))}:${colors.yellow(
+          ' you have skipped the main process and preload scripts building'
+        )}`
+      )
+    }
+
     const rendererViteConfig = config.config?.renderer
     if (rendererViteConfig) {
       logger.info(colors.gray(`\n-----\n`))
@@ -83,7 +94,7 @@ export async function createServer(inlineConfig: InlineConfig = {}): Promise<voi
       const slogger = server.config.logger
 
       slogger.info(colors.green(`dev server running for the electron renderer process at:\n`), {
-        clear: !slogger.hasWarned
+        clear: !slogger.hasWarned && !options.rendererOnly
       })
 
       server.printUrls()