From 14ccd19175b289ea3a666886cfbd16080d15eb45 Mon Sep 17 00:00:00 2001
From: William Wilkinson <will.wilkinson@carebridgehealth.com>
Date: Thu, 18 May 2023 15:45:29 -0500
Subject: [PATCH] Add warning messages for the `packageManager` setting

---
 client/src/client.ts | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/client/src/client.ts b/client/src/client.ts
index 8c673b3a..9b64f3a6 100644
--- a/client/src/client.ts
+++ b/client/src/client.ts
@@ -238,9 +238,7 @@ export namespace ESLintClient {
 
 			const uri: Uri = Uri.parse(params.source.uri);
 			const workspaceFolder = Workspace.getWorkspaceFolder(uri);
-			const packageManager = await commands.executeCommand<PackageManagers>(
-				'npm.packageManager'
-			);
+			const packageManager = await getPackageManager(uri);
 			const localInstall = {
 				npm: 'npm install eslint',
 				pnpm: 'pnpm install eslint',
@@ -584,6 +582,18 @@ export namespace ESLintClient {
 			return clientOptions;
 		}
 
+		async function getPackageManager(uri: Uri) {
+			const userProvidedPackageManager:PackageManagers = Workspace.getConfiguration('eslint', uri).get('packageManager', 'npm');
+			const detectedPackageMananger = await commands.executeCommand<PackageManagers>('npm.packageManager');
+
+			if (userProvidedPackageManager === detectedPackageMananger) {
+				client.warn('The ESLint setting packageManager is deprecated, and will be removed in the future. Please update your configuration.', {}, true);
+				return detectedPackageMananger;
+			}
+			client.warn('The ESLint setting packageManager is deprecated, and will be removed in the future. We will honor this setting until it is removed.', {}, true);
+			return userProvidedPackageManager;
+		}
+
 		async function readConfiguration(params: ConfigurationParams): Promise<(ConfigurationSettings | null)[]> {
 			if (params.items === undefined) {
 				return [];