First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/langium/lib/node/node-file-system-provider.js

@@ -0,0 +1,72 @@
+/******************************************************************************
+ * Copyright 2022 TypeFox GmbH
+ * This program and the accompanying materials are made available under the
+ * terms of the MIT License, which is available in the project root.
+ ******************************************************************************/
+import { UriUtils } from '../utils/uri-utils.js';
+import * as fs from 'node:fs';
+export class NodeFileSystemProvider {
+    constructor() {
+        this.encoding = 'utf-8';
+    }
+    async stat(uri) {
+        const stat = await fs.promises.stat(uri.fsPath);
+        return {
+            isFile: stat.isFile(),
+            isDirectory: stat.isDirectory(),
+            uri
+        };
+    }
+    statSync(uri) {
+        const stat = fs.statSync(uri.fsPath);
+        return {
+            isFile: stat.isFile(),
+            isDirectory: stat.isDirectory(),
+            uri
+        };
+    }
+    exists(uri) {
+        return new Promise(resolve => {
+            fs.stat(uri.fsPath, err => {
+                resolve(!err);
+            });
+        });
+    }
+    existsSync(uri) {
+        return fs.existsSync(uri.fsPath);
+    }
+    readBinary(uri) {
+        return fs.promises.readFile(uri.fsPath);
+    }
+    readBinarySync(uri) {
+        return fs.readFileSync(uri.fsPath);
+    }
+    readFile(uri) {
+        return fs.promises.readFile(uri.fsPath, this.encoding);
+    }
+    readFileSync(uri) {
+        return fs.readFileSync(uri.fsPath, this.encoding);
+    }
+    async readDirectory(uri) {
+        const dirents = await fs.promises.readdir(uri.fsPath, { withFileTypes: true });
+        return dirents.map(dirent => ({
+            dirent, // Include the raw entry, it may be useful...
+            isFile: dirent.isFile(),
+            isDirectory: dirent.isDirectory(),
+            uri: UriUtils.joinPath(uri, dirent.name)
+        }));
+    }
+    readDirectorySync(uri) {
+        const dirents = fs.readdirSync(uri.fsPath, { withFileTypes: true });
+        return dirents.map(dirent => ({
+            dirent, // Include the raw entry, it may be useful...
+            isFile: dirent.isFile(),
+            isDirectory: dirent.isDirectory(),
+            uri: UriUtils.joinPath(uri, dirent.name)
+        }));
+    }
+}
+export const NodeFileSystem = {
+    fileSystemProvider: () => new NodeFileSystemProvider()
+};
+//# sourceMappingURL=node-file-system-provider.js.map