feat: add cjsDefault option

sxzz · sxzz · commit f503f25a4f57 · 2025-08-08T13:51:39.000+08:00
closes #417
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
@@ -46,7 +46,7 @@ catalogs:
     empathic: ^2.0.0
     hookable: ^5.5.3
     rolldown: ^1.0.0-beta.31
-    rolldown-plugin-dts: ^0.15.3
+    rolldown-plugin-dts: ^0.15.6
     semver: ^7.7.2
     tinyexec: ^1.0.1
     tinyglobby: ^0.2.14
diff --git a/src/features/rolldown.ts b/src/features/rolldown.ts
@@ -83,6 +83,7 @@ export async function resolveInputOptions(
     loader,
     name,
     logger,
+    cjsDefault,
   } = config
 
   const plugins: RolldownPluginOption = []
@@ -102,7 +103,13 @@ export async function resolveInputOptions(
     if (format === 'es') {
       plugins.push(dtsPlugin(options))
     } else if (cjsDts) {
-      plugins.push(dtsPlugin({ ...options, emitDtsOnly: true }))
+      plugins.push(
+        dtsPlugin({
+          ...options,
+          emitDtsOnly: true,
+          cjsDefault,
+        }),
+      )
     }
   }
   if (!cjsDts) {
@@ -171,7 +178,16 @@ export async function resolveOutputOptions(
   format: NormalizedFormat,
   cjsDts: boolean,
 ): Promise<OutputOptions> {
-  const { entry, outDir, sourcemap, minify, unbundle, banner, footer } = config
+  const {
+    entry,
+    outDir,
+    sourcemap,
+    minify,
+    unbundle,
+    banner,
+    footer,
+    cjsDefault,
+  } = config
 
   const [entryFileNames, chunkFileNames] = resolveChunkFilename(
     config,
@@ -184,6 +200,7 @@ export async function resolveOutputOptions(
       name: config.globalName,
       sourcemap,
       dir: outDir,
+      exports: cjsDefault ? 'auto' : 'named',
       minify: !cjsDts && minify,
       entryFileNames,
       chunkFileNames,
diff --git a/src/options/index.ts b/src/options/index.ts
@@ -205,6 +205,7 @@ async function resolveConfig(
     unbundle = typeof bundle === 'boolean' ? !bundle : false,
     removeNodeProtocol,
     nodeProtocol,
+    cjsDefault = true,
   } = userConfig
 
   const logger = createLogger(logLevel, { customLogger, failOnWarn })
@@ -325,6 +326,7 @@ async function resolveConfig(
     exports,
     unbundle,
     nodeProtocol,
+    cjsDefault,
   }
 
   return config
diff --git a/src/options/types.ts b/src/options/types.ts
@@ -102,7 +102,7 @@ export interface Workspace {
  * Options for tsdown.
  */
 export interface Options {
-  /// build options
+  // #region Input Options
   /**
    * Defaults to `'src/index.ts'` if it exists.
    */
@@ -136,7 +136,8 @@ export interface Options {
         context: { cjsDts: boolean },
       ) => Awaitable<InputOptions | void | null>)
 
-  /// output options
+  //#region Output Options
+
   /** @default ['es'] */
   format?: Format | Format[]
   globalName?: string
@@ -153,6 +154,9 @@ export interface Options {
   clean?: boolean | string[]
   /** @default false */
   minify?: boolean | 'dce-only' | MinifyOptions
+  footer?: ChunkAddon
+  banner?: ChunkAddon
+
   /**
    * Specifies the compilation target environment(s).
    *
@@ -214,6 +218,11 @@ export interface Options {
    */
   outExtensions?: OutExtensionFactory
 
+  /**
+   * @default true
+   */
+  cjsDefault?: boolean
+
   outputOptions?:
     | OutputOptions
     | ((
@@ -284,7 +293,7 @@ export interface Options {
    */
   fromVite?: boolean | 'vitest'
 
-  /// addons
+  //#region Addons
   /**
    * Emit TypeScript declaration files (.d.ts).
    *
@@ -416,8 +425,6 @@ export interface Options {
    * Filter workspace packages. This option is only available in workspace mode.
    */
   filter?: RegExp | string | string[]
-  footer?: ChunkAddon
-  banner?: ChunkAddon
 }
 
 /**
