From 7bbd239fe7e6d72ef467484619b978c11f5fbb70 Mon Sep 17 00:00:00 2001
From: Parbez <imranbarbhuiya.fsd@gmail.com>
Date: Mon, 13 Feb 2023 07:04:32 +0530
Subject: [PATCH] fix: proper check for plugin in tsconfig (#45831)

`plugin` is a key of `tsconfig.compilerOptions`

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## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ]
[e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs)
tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see
[`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

---------
---
 .../next/src/lib/typescript/writeConfigurationDefaults.ts    | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/next/src/lib/typescript/writeConfigurationDefaults.ts b/packages/next/src/lib/typescript/writeConfigurationDefaults.ts
index a22ccf02da..92ff58591d 100644
--- a/packages/next/src/lib/typescript/writeConfigurationDefaults.ts
+++ b/packages/next/src/lib/typescript/writeConfigurationDefaults.ts
@@ -198,7 +198,10 @@ export async function writeConfigurationDefaults(
       // If the TS config extends on another config, we can't add the `plugin` field
       // because that will override the parent config's plugins.
       // Instead we have to show a message to the user to add the plugin manually.
-      if ('extends' in userTsConfig && !('plugins' in userTsConfig)) {
+      if (
+        'extends' in userTsConfig &&
+        !('plugins' in userTsConfig.compilerOptions)
+      ) {
         console.log(
           `\nYour ${chalk.cyan(
             'tsconfig.json'