fix(vue): Merge default and manual hooks while creating mixins.

packages/vue/src/constants.ts

@@ -0,0 +1,3 @@
+import { Operation } from './types';
+
+export const DEFAULT_HOOKS: Operation[] = ['activate', 'mount', 'update'];

packages/vue/src/sdk.ts

@@ -1,6 +1,7 @@
 import { init as browserInit, SDK_VERSION } from '@sentry/browser';
 import { getGlobalObject, logger } from '@sentry/utils';
 
+import { DEFAULT_HOOKS } from './constants';
 import { attachErrorHandler } from './errorhandler';
 import { createTracingMixins } from './tracing';
 import { Options, TracingOptions, Vue } from './types';
@@ -9,7 +10,7 @@ const DEFAULT_CONFIG: Options = {
   Vue: getGlobalObject<{ Vue: Vue }>().Vue,
   attachProps: true,
   logErrors: false,
-  hooks: ['activate', 'mount', 'update'],
+  hooks: DEFAULT_HOOKS,
   timeout: 2000,
   trackComponents: false,
   _metadata: {

packages/vue/src/tracing.ts

@@ -3,6 +3,7 @@ import { Span, Transaction } from '@sentry/types';
 import { logger, timestampInSeconds } from '@sentry/utils';
 
 import { formatComponentName } from './components';
+import { DEFAULT_HOOKS } from './constants';
 import { Hook, Operation, TracingOptions, ViewModel, Vue } from './types';
 
 type Mixins = Parameters<Vue['mixin']>[0];
@@ -47,7 +48,10 @@ function finishRootSpan(vm: VueSentry, timestamp: number, timeout: number): void
 }
 
 export const createTracingMixins = (options: TracingOptions): Mixins => {
-  const { hooks } = options;
+  const hooks = (options.hooks || [])
+    .concat(DEFAULT_HOOKS)
+    // Removing potential duplicates
+    .filter((value, index, self) => self.indexOf(value) === index);
 
   const mixins: Mixins = {};