feat: LSP now supports workspace folders (#127)

server/src/server.ts

@@ -19,44 +19,27 @@ const connection = createConnection(ProposedFeatures.all)
 const documents: TextDocuments<TextDocument> = new TextDocuments(TextDocument)
 let hasConfigurationCapability = false
 let hasWorkspaceFolderCapability = false
-// use if needed later
-// let hasDiagnosticRelatedInformationCapability = false
-
-let rootUri: string | undefined | null
 
 connection.onInitialize((params: InitializeParams) => {
   const capabilities = params.capabilities
 
+  // Does the client support the `workspace/configuration` request?
+  // If not, we fall back using global settings.
   hasConfigurationCapability = !!(capabilities.workspace && !!capabilities.workspace.configuration)
   hasWorkspaceFolderCapability = !!(capabilities.workspace && !!capabilities.workspace.workspaceFolders)
-  // use if needed later
-  // hasDiagnosticRelatedInformationCapability = !!(
-  // 	capabilities.textDocument &&
-  // 	capabilities.textDocument.publishDiagnostics &&
-  // 	capabilities.textDocument.publishDiagnostics.relatedInformation
-  // )
 
   const result: InitializeResult = {
     capabilities: {
       textDocumentSync: TextDocumentSyncKind.Incremental
     }
   }
-  if (params?.workspaceFolders && params.workspaceFolders.length > 1) {
-    throw new Error('This extension only supports one workspace folder at this time')
-  }
   if (hasWorkspaceFolderCapability) {
     result.capabilities.workspace = {
       workspaceFolders: {
-        supported: false
+        supported: true
       }
     }
   }
-  if (!hasWorkspaceFolderCapability) {
-    rootUri = params.rootUri
-  } else {
-    rootUri = params?.workspaceFolders?.[0]?.uri
-  }
-
   return result
 })