add hw2

node_modules/vscode-languageserver/bin/installServerIntoExtension

@@ -0,0 +1,73 @@
+#!/usr/bin/env node
+/* eslint-disable no-console */
+
+var path = require('path');
+var fs = require('fs');
+var cp = require('child_process');
+
+var extensionDirectory = process.argv[2];
+if (!extensionDirectory) {
+	console.error('No extension directory provided.');
+	process.exit(1);
+}
+extensionDirectory = path.resolve(extensionDirectory);
+if (!fs.existsSync(extensionDirectory)) {
+	console.error('Extension directory ' + extensionDirectory + ' doesn\'t exist on disk.');
+	process.exit(1);
+}
+
+var packageFile = process.argv[3];
+if (!packageFile) {
+	console.error('No package.json file provided.');
+	process.exit(1);
+}
+packageFile = path.resolve(packageFile);
+if (!fs.existsSync(packageFile)) {
+	console.error('Package file ' + packageFile + ' doesn\'t exist on disk.');
+	process.exit(1);
+}
+var tsconfigFile = process.argv[4];
+if (!tsconfigFile) {
+	console.error('No tsconfig.json file provided');
+	process.exit(1);
+}
+tsconfigFile = path.resolve(tsconfigFile);
+if (!fs.existsSync(tsconfigFile)) {
+	console.error('tsconfig file ' + tsconfigFile + ' doesn\'t exist on disk.');
+	process.exit(1);
+}
+
+var extensionServerDirectory = path.join(extensionDirectory, 'server');
+
+var json = require(tsconfigFile);
+var compilerOptions = json.compilerOptions;
+if (compilerOptions) {
+	var outDir = compilerOptions.outDir;
+	if (!outDir || path.join(path.dirname(tsconfigFile), outDir) !== extensionServerDirectory) {
+		console.error('outDir in ' + process.argv[4] + ' must point to ' + extensionServerDirectory + ' but it points to ' + path.join(path.dirname(tsconfigFile), outDir));
+		console.error('Please change outDir in ' + process.argv[4] + ' to ' + path.relative(path.dirname(tsconfigFile), extensionServerDirectory).replace(/\\/g, '/'));
+		process.exit(1);
+	}
+}
+
+if (!fs.existsSync(extensionServerDirectory)) {
+	fs.mkdirSync(extensionServerDirectory);
+}
+
+var dest = path.join(extensionServerDirectory, 'package.json');
+console.log('Copying package.json to extension\'s server location...');
+fs.writeFileSync(dest, fs.readFileSync(packageFile));
+
+var shrinkwrapFile = process.argv[5];
+if (fs.existsSync(shrinkwrapFile)) {
+	const shrinkWrapDest = path.join(extensionServerDirectory, 'npm-shrinkwrap.json');
+	shrinkwrapFile = path.resolve(shrinkwrapFile);
+	console.log('Copying npm-shrinkwrap.json to extension\'s server location...');
+	fs.writeFileSync(shrinkWrapDest, fs.readFileSync(shrinkwrapFile));
+
+}
+
+console.log('The script is deprecated. See https://github.com/microsoft/vscode-extension-samples/tree/master/lsp-sample for an example on how to setup an extension / server project.');
+console.log('');
+console.log('Updating server npm modules into extension\'s server location...');
+cp.execSync('npm update --production --prefix ' + extensionServerDirectory);