From 74227aec357f9fd462987b1b24f9a10cb6c9d3d9 Mon Sep 17 00:00:00 2001
From: johnsoncodehk <johnsoncodehk@gmail.com>
Date: Mon, 28 Nov 2022 20:41:27 +0800
Subject: [PATCH] feat: add `volar.vueserver.disableFileWatcher` setting

close #2027
---
 .../vscode-vue-language-features/package.json |  5 +++
 .../src/common.ts                             |  6 ++++
 packages/language-server/src/server.ts        | 32 +++++++++++--------
 packages/language-server/src/types.ts         |  1 +
 4 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/extensions/vscode-vue-language-features/package.json b/extensions/vscode-vue-language-features/package.json
index 3a985145d..0cdc434db 100644
--- a/extensions/vscode-vue-language-features/package.json
+++ b/extensions/vscode-vue-language-features/package.json
@@ -348,6 +348,11 @@
 					"default": false,
 					"description": "Reverse priority for tsconfig pickup."
 				},
+				"volar.vueserver.disableFileWatcher": {
+					"type": "boolean",
+					"default": false,
+					"description": "Disable file watcher in language server for better performance."
+				},
 				"volar.vueserver.additionalExtensions": {
 					"type": "array",
 					"items": {
diff --git a/extensions/vscode-vue-language-features/src/common.ts b/extensions/vscode-vue-language-features/src/common.ts
index d007d12e0..54d7824fc 100644
--- a/extensions/vscode-vue-language-features/src/common.ts
+++ b/extensions/vscode-vue-language-features/src/common.ts
@@ -127,6 +127,7 @@ async function doActivate(context: vscode.ExtensionContext, createLc: CreateLang
 				|| e.affectsConfiguration('volar.vueserver.diagnosticModel')
 				|| e.affectsConfiguration('volar.vueserver.noProjectReferences')
 				|| e.affectsConfiguration('volar.vueserver.reverseConfigFilePriority')
+				|| e.affectsConfiguration('volar.vueserver.disableFileWatcher')
 				|| e.affectsConfiguration('volar.vueserver.petiteVue.processHtmlFile')
 				|| e.affectsConfiguration('volar.vueserver.vitePress.processMdFile')
 				|| e.affectsConfiguration('volar.vueserver.additionalExtensions')
@@ -209,6 +210,10 @@ export function reverseConfigFilePriority() {
 	return !!vscode.workspace.getConfiguration('volar').get<boolean>('vueserver.reverseConfigFilePriority');
 }
 
+export function disableFileWatcher() {
+	return !!vscode.workspace.getConfiguration('volar').get<boolean>('vueserver.disableFileWatcher');
+}
+
 export function diagnosticModel() {
 	return vscode.workspace.getConfiguration('volar').get<'push' | 'pull'>('vueserver.diagnosticModel');
 }
@@ -289,6 +294,7 @@ function getInitializationOptions(
 		},
 		noProjectReferences: noProjectReferences(),
 		reverseConfigFilePriority: reverseConfigFilePriority(),
+		disableFileWatcher: disableFileWatcher(),
 		additionalExtensions: additionalExtensions()
 	};
 	return initializationOptions;
diff --git a/packages/language-server/src/server.ts b/packages/language-server/src/server.ts
index def56c8f7..7be641f23 100644
--- a/packages/language-server/src/server.ts
+++ b/packages/language-server/src/server.ts
@@ -90,22 +90,28 @@ export function createCommonLanguageServer(
 			});
 		}
 
-		if (options.serverMode !== ServerMode.Syntactic && params.capabilities.workspace?.didChangeWatchedFiles?.dynamicRegistration) {
+		if (
+			options.serverMode !== ServerMode.Syntactic
+			&& !options.disableFileWatcher
+			&& params.capabilities.workspace?.didChangeWatchedFiles?.dynamicRegistration
+		) {
 			connection.client.register(vscode.DidChangeWatchedFilesNotification.type, {
 				watchers: [
 					...plugins.map(plugin => plugin.extraFileExtensions.map(ext => ({ globPattern: `**/*.${ext.extension}` }))).flat(),
-					{ globPattern: `**/*.{${[
-						'js',
-						'cjs',
-						'mjs',
-						'ts',
-						'cts',
-						'mts',
-						'jsx',
-						'tsx',
-						'json',
-						...plugins.map(plugin => plugin.extraFileExtensions.map(ext => ext.extension)).flat(),
-					].join(',')}}` },
+					{
+						globPattern: `**/*.{${[
+							'js',
+							'cjs',
+							'mjs',
+							'ts',
+							'cts',
+							'mts',
+							'jsx',
+							'tsx',
+							'json',
+							...plugins.map(plugin => plugin.extraFileExtensions.map(ext => ext.extension)).flat(),
+						].join(',')}}`
+					},
 				]
 			});
 		}
diff --git a/packages/language-server/src/types.ts b/packages/language-server/src/types.ts
index 64134e549..4d22609d5 100644
--- a/packages/language-server/src/types.ts
+++ b/packages/language-server/src/types.ts
@@ -113,6 +113,7 @@ export interface LanguageServerInitializationOptions {
 	cancellationPipeName?: string;
 	noProjectReferences?: boolean;
 	reverseConfigFilePriority?: boolean;
+	disableFileWatcher?: boolean;
 	/**
 	 * Enable this option to make language server setup server capabilities based on client capabilities to support multiple servers.
 	 */