Convert build scripts to JavaScript.

build/fs.ts

@@ -0,0 +1,85 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as fs from 'fs';
+import * as path from 'path';
+
+const REPO_ROOT = path.join(__dirname, '../');
+
+const existingDirCache = new Set();
+
+export function ensureDir(dirname: string) {
+	/** @type {string[]} */
+	const dirs = [];
+
+	while (dirname.length > REPO_ROOT.length) {
+		dirs.push(dirname);
+		dirname = path.dirname(dirname);
+	}
+	dirs.reverse();
+	dirs.forEach((dir) => {
+		if (!existingDirCache.has(dir)) {
+			try {
+				fs.mkdirSync(dir);
+			} catch (err) {}
+			existingDirCache.add(dir);
+		}
+	});
+}
+
+/**
+ * Copy a file.
+ */
+export function copyFile(_source: string, _destination: string) {
+	const source = path.join(REPO_ROOT, _source);
+	const destination = path.join(REPO_ROOT, _destination);
+
+	ensureDir(path.dirname(destination));
+	fs.writeFileSync(destination, fs.readFileSync(source));
+
+	console.log(`Copied ${_source} to ${_destination}`);
+}
+
+/**
+ * Remove a directory and all its contents.
+ */
+export function removeDir(_dirPath: string, keep?: (filename: string) => boolean) {
+	if (typeof keep === 'undefined') {
+		keep = () => false;
+	}
+	const dirPath = path.join(REPO_ROOT, _dirPath);
+	if (!fs.existsSync(dirPath)) {
+		return;
+	}
+	rmDir(dirPath, _dirPath);
+	console.log(`Deleted ${_dirPath}`);
+
+	/**
+	 * @param {string} dirPath
+	 * @param {string} relativeDirPath
+	 * @returns {boolean}
+	 */
+	function rmDir(dirPath, relativeDirPath) {
+		let keepsFiles = false;
+		const entries = fs.readdirSync(dirPath);
+		for (const entry of entries) {
+			const filePath = path.join(dirPath, entry);
+			const relativeFilePath = path.join(relativeDirPath, entry);
+			if (keep(relativeFilePath)) {
+				keepsFiles = true;
+				continue;
+			}
+			if (fs.statSync(filePath).isFile()) {
+				fs.unlinkSync(filePath);
+			} else {
+				keepsFiles = rmDir(filePath, relativeFilePath) || keepsFiles;
+			}
+		}
+		if (!keepsFiles) {
+			fs.rmdirSync(dirPath);
+		}
+		return keepsFiles;
+	}
+}