feat: handle workspace.onDidChangeWorkspaceForders

close #1574

Author: johnsoncodehk

Diff for: packages/vue-language-server/src/common.ts

@@ -35,6 +35,7 @@ export function createLanguageServer(
 ) {
 
 	let clientCapabilities: vscode.ClientCapabilities;
+	let projects: ReturnType<typeof createProjects>;
 
 	connection.onInitialize(async params => {
 
@@ -81,10 +82,9 @@ export function createLanguageServer(
 		if (options.languageFeatures) {
 
 			const tsLocalized = runtimeEnv.loadTypescriptLocalized(options);
-			const projects = createProjects(
+			projects = createProjects(
 				runtimeEnv,
 				languageConfigs,
-				folders,
 				ts,
 				tsLocalized,
 				options,
@@ -95,6 +95,10 @@ export function createLanguageServer(
 				params.capabilities,
 			);
 
+			for (const root of folders) {
+				projects.addRoot(root);
+			}
+
 			(await import('./features/customFeatures')).register(connection, projects);
 			(await import('./features/languageFeatures')).register(connection, projects, options.languageFeatures, params);
 			(await import('./registers/registerlanguageFeatures')).register(options.languageFeatures!, vue.getSemanticTokenLegend(), result.capabilities, languageConfigs);
@@ -103,9 +107,23 @@ export function createLanguageServer(
 		return result;
 	});
 	connection.onInitialized(() => {
+
 		if (clientCapabilities.workspace?.didChangeConfiguration?.dynamicRegistration) { // TODO
 			connection.client.register(vscode.DidChangeConfigurationNotification.type);
 		}
+
+		connection.workspace.onDidChangeWorkspaceFolders(e => {
+
+			const added = e.added.map(folder => URI.parse(folder.uri)).filter(uri => uri.scheme === 'file').map(uri => uri.fsPath);
+			const removed = e.removed.map(folder => URI.parse(folder.uri)).filter(uri => uri.scheme === 'file').map(uri => uri.fsPath);
+
+			for (const folder of added) {
+				projects.addRoot(folder);
+			}
+			for (const folder of removed) {
+				projects.removeRoot(folder);
+			}
+		});
 	});
 	connection.listen();
 

Diff for: packages/vue-language-server/src/projects.ts

@@ -14,7 +14,6 @@ const rootTsConfigNames = ['tsconfig.json', 'jsconfig.json'];
 export function createProjects(
 	runtimeEnv: RuntimeEnvironment,
 	languageConfigs: LanguageConfigs,
-	rootPaths: string[],
 	ts: typeof import('typescript/lib/tsserverlibrary'),
 	tsLocalized: ts.MapLike<string> | undefined,
 	options: shared.ServerInitializationOptions,
@@ -34,22 +33,6 @@ export function createProjects(
 
 	const workspaces = new Map<string, ReturnType<typeof createWorkspace>>();
 
-	for (const rootPath of rootPaths) {
-		workspaces.set(rootPath, createWorkspace(
-			runtimeEnv,
-			languageConfigs,
-			rootPath,
-			ts,
-			tsLocalized,
-			options,
-			documents,
-			connection,
-			lsConfigs,
-			getInferredCompilerOptions,
-			capabilities,
-		));
-	}
-
 	documents.onDidOpen(params => {
 		lastOpenDoc = {
 			uri: params.textDocument.uri,
@@ -69,6 +52,24 @@ export function createProjects(
 		workspaces,
 		getProject,
 		reloadProject,
+		addRoot: (rootPath: string) => {
+			workspaces.set(rootPath, createWorkspace(
+				runtimeEnv,
+				languageConfigs,
+				rootPath,
+				ts,
+				tsLocalized,
+				options,
+				documents,
+				connection,
+				lsConfigs,
+				getInferredCompilerOptions,
+				capabilities,
+			));
+		},
+		removeRoot: (rootPath: string) => {
+			workspaces.delete(rootPath);
+		},
 	};
 
 	async function onDidChangeContent(uri: string) {