From be89c725ac984ea1ba0b96917848909f6a7da11a Mon Sep 17 00:00:00 2001
From: Lukas Stracke <lukas.stracke@sentry.io>
Date: Wed, 12 Oct 2022 14:46:15 +0200
Subject: [PATCH] cleanup

---
 packages/svelte/src/config.ts              | 34 ++++++++++------------
 packages/svelte/src/index.ts               |  1 +
 packages/svelte/src/types.ts               | 18 ++++++++++--
 packages/svelte/test/config.test.ts        |  5 ++--
 packages/svelte/test/preprocessors.test.ts |  1 +
 5 files changed, 36 insertions(+), 23 deletions(-)

diff --git a/packages/svelte/src/config.ts b/packages/svelte/src/config.ts
index 50634cc7d30a..f6244db8c5a7 100644
--- a/packages/svelte/src/config.ts
+++ b/packages/svelte/src/config.ts
@@ -1,18 +1,7 @@
-import { CompileOptions } from 'svelte/types/compiler';
 import { PreprocessorGroup } from 'svelte/types/compiler/preprocess';
 
 import { componentTrackingPreprocessor, defaultComponentTrackingOptions } from './preprocessors';
-import { ComponentTrackingInitOptions, SentryPreprocessorGroup } from './types';
-
-export type SvelteConfig = {
-  [key: string]: unknown;
-  preprocess?: PreprocessorGroup[] | PreprocessorGroup;
-  compilerOptions?: CompileOptions;
-};
-
-export type SentrySvelteConfigOptions = {
-  componentTracking?: ComponentTrackingInitOptions;
-};
+import { SentryPreprocessorGroup, SentrySvelteConfigOptions, SvelteConfig } from './types';
 
 const DEFAULT_SENTRY_OPTIONS: SentrySvelteConfigOptions = {
   componentTracking: defaultComponentTrackingOptions,
@@ -36,19 +25,16 @@ export function withSentryConfig(
   };
 
   const originalPreprocessors = getOriginalPreprocessorArray(originalConfig);
-  const sentryPreprocessors: SentryPreprocessorGroup[] = [];
+  const allSentryPreprocessors: SentryPreprocessorGroup[] = [];
 
   const shouldTrackComponents = mergedOptions.componentTracking && mergedOptions.componentTracking.trackComponents;
   if (shouldTrackComponents) {
     // TODO(v8): Remove eslint rule
     // eslint-disable-next-line deprecation/deprecation
-    sentryPreprocessors.push(componentTrackingPreprocessor(mergedOptions.componentTracking));
+    allSentryPreprocessors.push(componentTrackingPreprocessor(mergedOptions.componentTracking));
   }
 
-  const dedupedSentryPreprocessors = sentryPreprocessors.filter(
-    sentryPreproc =>
-      originalPreprocessors.find(p => (p as SentryPreprocessorGroup).id === sentryPreproc.id) === undefined,
-  );
+  const dedupedSentryPreprocessors = dedupePreprocessors(allSentryPreprocessors, originalPreprocessors);
 
   const mergedPreprocessors = [...dedupedSentryPreprocessors, ...originalPreprocessors];
 
@@ -60,7 +46,7 @@ export function withSentryConfig(
 
 /**
  * Standardizes the different ways the user-provided preprocessor option can be specified.
- * Users can specify an array of preprocessors, one single one or nothing at all.
+ * Users can specify an array of preprocessors, a single one or no preprocessor.
  *
  * @param originalConfig the user-provided svelte config oject
  * @return an array of preprocessors or an empty array if no preprocessors were specified
@@ -74,3 +60,13 @@ function getOriginalPreprocessorArray(originalConfig: SvelteConfig): Preprocesso
   }
   return [];
 }
+
+function dedupePreprocessors(
+  sentryPreprocessors: SentryPreprocessorGroup[],
+  originalPreprocessors: PreprocessorGroup[],
+): PreprocessorGroup[] {
+  return sentryPreprocessors.filter(
+    sentryPreproc =>
+      originalPreprocessors.find(p => (p as SentryPreprocessorGroup).id === sentryPreproc.id) === undefined,
+  );
+}
diff --git a/packages/svelte/src/index.ts b/packages/svelte/src/index.ts
index bc82551784d6..ac5aa49a5298 100644
--- a/packages/svelte/src/index.ts
+++ b/packages/svelte/src/index.ts
@@ -8,6 +8,7 @@ export * from '@sentry/browser';
 export { init } from './sdk';
 
 // TODO(v8): Remove this export
+// eslint-disable-next-line deprecation/deprecation
 export { componentTrackingPreprocessor } from './preprocessors';
 
 export { trackComponent } from './performance';
diff --git a/packages/svelte/src/types.ts b/packages/svelte/src/types.ts
index 73dceaa4b043..40628d6b974b 100644
--- a/packages/svelte/src/types.ts
+++ b/packages/svelte/src/types.ts
@@ -1,3 +1,4 @@
+import { CompileOptions } from 'svelte/types/compiler';
 import { PreprocessorGroup } from 'svelte/types/compiler/preprocess';
 
 // Adds an id property to the preprocessor object we can use to check for duplication
@@ -6,8 +7,21 @@ export interface SentryPreprocessorGroup extends PreprocessorGroup {
   id?: string;
 }
 
-// Alternatively, we could use a direct from svelte/compiler/preprocess
-// TODO: figure out what's better and roll with that
+/**
+ * The object exported from `svelte.config.js`
+ */
+export type SvelteConfig = {
+  [key: string]: unknown;
+  preprocess?: PreprocessorGroup[] | PreprocessorGroup;
+  compilerOptions?: CompileOptions;
+};
+
+/**
+ * Options users can provide to `withSentryConfig` to customize what Sentry adds too the Svelte config
+ */
+export type SentrySvelteConfigOptions = {
+  componentTracking?: ComponentTrackingInitOptions;
+};
 
 export type SpanOptions = {
   /**
diff --git a/packages/svelte/test/config.test.ts b/packages/svelte/test/config.test.ts
index 89e5712110a7..b37e7883f4a0 100644
--- a/packages/svelte/test/config.test.ts
+++ b/packages/svelte/test/config.test.ts
@@ -1,6 +1,6 @@
-import { withSentryConfig, SvelteConfig, SentrySvelteConfigOptions } from '../src/config';
+import { withSentryConfig } from '../src/config';
 import { componentTrackingPreprocessor, FIRST_PASS_COMPONENT_TRACKING_PREPROC_ID } from '../src/preprocessors';
-import { SentryPreprocessorGroup } from '../src/types';
+import { SentryPreprocessorGroup, SentrySvelteConfigOptions, SvelteConfig } from '../src/types';
 
 describe('withSentryConfig', () => {
   it.each([
@@ -53,6 +53,7 @@ describe('withSentryConfig', () => {
       compilerOptions: {
         enableSourcemap: true,
       },
+      // eslint-disable-next-line deprecation/deprecation
       preprocess: componentTrackingPreprocessor(),
     };
 
diff --git a/packages/svelte/test/preprocessors.test.ts b/packages/svelte/test/preprocessors.test.ts
index afa100c63cac..79a1f1c9e416 100644
--- a/packages/svelte/test/preprocessors.test.ts
+++ b/packages/svelte/test/preprocessors.test.ts
@@ -1,3 +1,4 @@
+/* eslint-disable deprecation/deprecation */
 import { componentTrackingPreprocessor, defaultComponentTrackingOptions } from '../src/preprocessors';
 
 function expectComponentCodeToBeModified(