fix(astro): Avoid adding the Sentry Vite plugin in dev mode

packages/astro/src/integration/index.ts

@@ -14,7 +14,7 @@ export const sentryAstro = (options: SentryOptions = {}): AstroIntegration => {
     name: PKG_NAME,
     hooks: {
       // eslint-disable-next-line complexity
-      'astro:config:setup': async ({ updateConfig, injectScript, addMiddleware, config }) => {
+      'astro:config:setup': async ({ updateConfig, injectScript, addMiddleware, config, command }) => {
         // The third param here enables loading of all env vars, regardless of prefix
         // see: https://main.vitejs.dev/config/#using-environment-variables-in-config
 
@@ -29,7 +29,7 @@ export const sentryAstro = (options: SentryOptions = {}): AstroIntegration => {
         const shouldUploadSourcemaps = uploadOptions?.enabled ?? true;
 
         // We don't need to check for AUTH_TOKEN here, because the plugin will pick it up from the env
-        if (shouldUploadSourcemaps) {
+        if (shouldUploadSourcemaps && command !== 'dev') {
           updateConfig({
             vite: {
               build: {

packages/astro/test/integration/index.test.ts

@@ -155,6 +155,19 @@ describe('sentryAstro integration', () => {
     expect(sentryVitePluginSpy).toHaveBeenCalledTimes(0);
   });
 
+  it("doesn't add the Vite plugin in dev mode", async () => {
+    const integration = sentryAstro({
+      sourceMapsUploadOptions: { enabled: true },
+    });
+
+    expect(integration.hooks['astro:config:setup']).toBeDefined();
+    // @ts-expect-error - the hook exists and we only need to pass what we actually use
+    await integration.hooks['astro:config:setup']({ updateConfig, injectScript, config, command: 'dev' });
+
+    expect(updateConfig).toHaveBeenCalledTimes(0);
+    expect(sentryVitePluginSpy).toHaveBeenCalledTimes(0);
+  });
+
   it('injects client and server init scripts', async () => {
     const integration = sentryAstro({});