| import * as vscode from 'vscode'; |
| import * as vscodelc from 'vscode-languageclient'; |
| import { realpathSync } from 'fs'; |
| |
| /** |
| * Method to get workspace configuration option |
| * @param option name of the option (e.g. for clangd.path should be path) |
| * @param defaultValue default value to return if option is not set |
| */ |
| function getConfig<T>(option: string, defaultValue?: any): T { |
| const config = vscode.workspace.getConfiguration('clangd'); |
| return config.get<T>(option, defaultValue); |
| } |
| |
| /** |
| * this method is called when your extension is activate |
| * your extension is activated the very first time the command is executed |
| */ |
| export function activate(context: vscode.ExtensionContext) { |
| const syncFileEvents = getConfig<boolean>('syncFileEvents', true); |
| |
| const clangd: vscodelc.Executable = { |
| command: getConfig<string>('path'), |
| args: getConfig<string[]>('arguments') |
| }; |
| const traceFile = getConfig<string>('trace'); |
| if (!!traceFile) { |
| const trace = { CLANGD_TRACE: traceFile }; |
| clangd.options = { env: { ...process.env, ...trace } }; |
| } |
| const serverOptions: vscodelc.ServerOptions = clangd; |
| |
| const filePattern: string = '**/*.{' + |
| ['cpp', 'c', 'cc', 'cxx', 'c++', 'm', 'mm', 'h', 'hh', 'hpp', 'hxx', 'inc'].join() + '}'; |
| const clientOptions: vscodelc.LanguageClientOptions = { |
| // Register the server for C/C++ files |
| documentSelector: [{ scheme: 'file', pattern: filePattern }], |
| synchronize: !syncFileEvents ? undefined : { |
| fileEvents: vscode.workspace.createFileSystemWatcher(filePattern) |
| }, |
| // Resolve symlinks for all files provided by clangd. |
| // This is a workaround for a bazel + clangd issue - bazel produces a symlink tree to build in, |
| // and when navigating to the included file, clangd passes its path inside the symlink tree |
| // rather than its filesystem path. |
| // FIXME: remove this once clangd knows enough about bazel to resolve the |
| // symlinks where needed (or if this causes problems for other workflows). |
| uriConverters: { |
| code2Protocol: (value: vscode.Uri) => value.toString(), |
| protocol2Code: (value: string) => |
| vscode.Uri.file(realpathSync(vscode.Uri.parse(value).fsPath)) |
| } |
| }; |
| |
| const clangdClient = new vscodelc.LanguageClient('Clang Language Server', serverOptions, clientOptions); |
| console.log('Clang Language Server is now active!'); |
| |
| const disposable = clangdClient.start(); |
| } |