Minor improvements

build/utils.js

@@ -145,3 +145,72 @@ function dts(_source, _destination, namespace) {
 	prettier(_destination);
 }
 exports.dts = dts;
+
+function getGitVersion() {
+	const git = path.join(REPO_ROOT, '.git');
+	const headPath = path.join(git, 'HEAD');
+	let head;
+
+	try {
+		head = fs.readFileSync(headPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	if (/^[0-9a-f]{40}$/i.test(head)) {
+		return head;
+	}
+
+	const refMatch = /^ref: (.*)$/.exec(head);
+
+	if (!refMatch) {
+		return void 0;
+	}
+
+	const ref = refMatch[1];
+	const refPath = path.join(git, ref);
+
+	try {
+		return fs.readFileSync(refPath, 'utf8').trim();
+	} catch (e) {
+		// noop
+	}
+
+	const packedRefsPath = path.join(git, 'packed-refs');
+	let refsRaw;
+
+	try {
+		refsRaw = fs.readFileSync(packedRefsPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	const refsRegex = /^([0-9a-f]{40})\s+(.+)$/gm;
+	let refsMatch;
+	const refs = {};
+
+	while (refsMatch = refsRegex.exec(refsRaw)) {
+		refs[refsMatch[2]] = refsMatch[1];
+	}
+
+	return refs[ref];
+}
+
+function getBundledFileHeader() {
+	const sha1 = getGitVersion();
+	const semver = require('../package.json').version;
+	const headerVersion = semver + '(' + sha1 + ')';
+
+	const BUNDLED_FILE_HEADER = [
+		'/*!-----------------------------------------------------------------------------',
+		' * Copyright (c) Microsoft Corporation. All rights reserved.',
+		' * Version: ' + headerVersion,
+		' * Released under the MIT license',
+		' * https://github.com/microsoft/monaco-editor/blob/main/LICENSE.txt',
+		' *-----------------------------------------------------------------------------*/',
+		''
+	].join('\n');
+
+	return BUNDLED_FILE_HEADER;
+}
+exports.getBundledFileHeader = getBundledFileHeader;