feat: add write option

sxzz · sxzz · commit 64feae034038 · 2025-12-02T00:16:08.000+08:00
diff --git a/package.json b/package.json
@@ -49,7 +49,7 @@
     "lint": "eslint --cache --max-warnings 0 .",
     "lint:fix": "pnpm run lint --fix",
     "build": "unrun ./src/run.ts",
-    "dev": "unrun ./src/run.ts",
+    "dev": "node ./src/run.ts",
     "test": "vitest",
     "typecheck": "tsc --noEmit",
     "format": "prettier --cache --write .",
diff --git a/src/cli.ts b/src/cli.ts
@@ -34,6 +34,10 @@ cli
   .option('--target <target>', 'Bundle target, e.g "es2015", "esnext"')
   .option('-l, --logLevel <level>', 'Set log level: info, warn, error, silent')
   .option('--fail-on-warn', 'Fail on warnings', { default: true })
+  .option(
+    '--no-write',
+    'Disable writing files to disk, incompatible with watch mode',
+  )
   .option('-d, --out-dir <dir>', 'Output directory', { default: 'dist' })
   .option('--treeshake', 'Tree-shake bundle', { default: true })
   .option('--sourcemap', 'Generate source map', { default: false })
diff --git a/src/config/options.ts b/src/config/options.ts
@@ -77,6 +77,7 @@ export async function resolveUserConfig(
     inlineOnly,
     fixedExtension = platform === 'node',
     debug = false,
+    write = true,
   } = userConfig
 
   const pkg = await readPackageJson(cwd)
@@ -238,6 +239,7 @@ export async function resolveUserConfig(
     unbundle,
     unused,
     watch,
+    write,
   }
 
   return config
diff --git a/src/config/types.ts b/src/config/types.ts
@@ -259,6 +259,12 @@ export interface UserConfig {
   globalName?: string
   /** @default 'dist' */
   outDir?: string
+  /**
+   * Whether to write the files to disk.
+   * This option is incompatible with watch mode.
+   * @default true
+   */
+  write?: boolean
   /**
    * Whether to generate source map files.
    *
diff --git a/src/features/rolldown.ts b/src/features/rolldown.ts
@@ -59,6 +59,7 @@ export async function getBuildOptions(
   const rolldownConfig: BuildOptions = {
     ...inputOptions,
     output: outputOptions,
+    write: config.write,
   }
   debug(
     'rolldown config with format "%s" %O',
diff --git a/src/index.ts b/src/index.ts
@@ -81,12 +81,8 @@ export async function build(
     for (const bundle of bundles) {
       disposeCbs.push(bundle[asyncDispose])
     }
-
-    return undefined as never
-  }
-
-  // build done
-  if (firstDevtoolsConfig) {
+  } else if (firstDevtoolsConfig) {
+    // build done, start devtools
     const { start } = await importWithError<
       typeof import('@vitejs/devtools/cli-commands')
     >('@vitejs/devtools/cli-commands')

Original file line number	Diff line number	Diff line change
`@@ -59,6 +59,7 @@ export async function getBuildOptions(`
`59`	`59`	`const rolldownConfig: BuildOptions = {`
`60`	`60`	`...inputOptions,`
`61`	`61`	`output: outputOptions,`
	`62`	`+ write: config.write,`
`62`	`63`	`}`
`63`	`64`	`debug(`
`64`	`65`	`'rolldown config with format "%s" %O',`