feat(webpack): Gate forced process exit behind experimental flag

packages/bundler-plugin-core/src/index.ts

@@ -35,7 +35,8 @@ interface SentryUnpluginFactoryOptions {
   debugIdInjectionPlugin: (logger: Logger) => UnpluginOptions;
   debugIdUploadPlugin: (
     upload: (buildArtifacts: string[]) => Promise<void>,
-    logger: Logger
+    logger: Logger,
+    webpack_forceExitOnBuildComplete?: boolean
   ) => UnpluginOptions;
   bundleSizeOptimizationsPlugin: (buildFlags: SentrySDKBuildFlags) => UnpluginOptions;
 }
@@ -379,6 +380,12 @@ export function sentryUnpluginFactory({
         "No project provided. Will not upload source maps. Please set the `project` option to your Sentry project slug."
       );
     } else {
+      // This option is only strongly typed for the webpack plugin, where it is used. It has no effect on other plugins
+      const webpack_forceExitOnBuildComplete =
+        typeof options._experiments["forceExitOnBuildCompletion"] === "boolean"
+          ? options._experiments["forceExitOnBuildCompletion"]
+          : undefined;
+
       plugins.push(
         debugIdUploadPlugin(
           createDebugIdUploadFunction({
@@ -402,7 +409,8 @@ export function sentryUnpluginFactory({
               headers: options.headers,
             },
           }),
-          logger
+          logger,
+          webpack_forceExitOnBuildComplete
         )
       );
     }

packages/bundler-plugin-core/src/types.ts

@@ -324,7 +324,7 @@ export interface Options {
      * Defaults to `false`.
      */
     injectBuildInformation?: boolean;
-  };
+  } & Record<string, unknown>;
 
   /**
    * Options that are useful for building wrappers around the plugin. You likely don't need these options unless you

packages/webpack-plugin/src/index.ts

@@ -119,7 +119,8 @@ function webpackDebugIdInjectionPlugin(): UnpluginOptions {
 
 function webpackDebugIdUploadPlugin(
   upload: (buildArtifacts: string[]) => Promise<void>,
-  logger: Logger
+  logger: Logger,
+  forceExitOnBuildCompletion?: boolean
 ): UnpluginOptions {
   const pluginName = "sentry-webpack-debug-id-upload-plugin";
   return {
@@ -136,7 +137,7 @@ function webpackDebugIdUploadPlugin(
         });
       });
 
-      if (compiler.options.mode === "production") {
+      if (forceExitOnBuildCompletion && compiler.options.mode === "production") {
         compiler.hooks.done.tap(pluginName, () => {
           setTimeout(() => {
             logger.debug("Exiting process after debug file upload");
@@ -184,8 +185,24 @@ const sentryUnplugin = sentryUnpluginFactory({
   bundleSizeOptimizationsPlugin: webpackBundleSizeOptimizationsPlugin,
 });
 
+type SentryWebpackPluginOptions = Options & {
+  _experiments?: Options["_experiments"] & {
+    /**
+     * If enabled, the webpack plugin will exit the build process after the build completes.
+     * Use this with caution, as it will terminate the process.
+     *
+     * More information: https://github.com/getsentry/sentry-javascript-bundler-plugins/issues/345
+     *
+     * @default false
+     */
+    forceExitOnBuildCompletion?: boolean;
+  };
+};
+
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const sentryWebpackPlugin: (options?: Options) => any = sentryUnplugin.webpack;
+export const sentryWebpackPlugin: (options?: SentryWebpackPluginOptions) => any =
+  sentryUnplugin.webpack;
 
 export { sentryCliBinaryExists } from "@sentry/bundler-plugin-core";
-export type { Options as SentryWebpackPluginOptions } from "@sentry/bundler-plugin-core";
+
+export type { SentryWebpackPluginOptions };