Don't use gulp anymore

scripts/bundle.js

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+const requirejs = require('requirejs');
+const path = require('path');
+const fs = require('fs');
+const UglifyJS = require("uglify-js");
+const git = require('./git');
+
+const REPO_ROOT = path.resolve(__dirname, '..');
+
+const sha1 = git.getGitVersion(REPO_ROOT);
+const semver = require('../package.json').version;
+const headerVersion = semver + '(' + sha1 + ')';
+
+const BUNDLED_FILE_HEADER = [
+	'/*!-----------------------------------------------------------------------------',
+	' * Copyright (c) Microsoft Corporation. All rights reserved.',
+	' * monaco-typescript version: ' + headerVersion,
+	' * Released under the MIT license',
+	' * https://github.com/Microsoft/monaco-typescript/blob/master/LICENSE.md',
+	' *-----------------------------------------------------------------------------*/',
+	''
+].join('\n');
+
+bundleOne('monaco.contribution');
+bundleOne('lib/typescriptServices');
+bundleOne('mode', ['vs/language/typescript/lib/typescriptServices']);
+bundleOne('worker', ['vs/language/typescript/lib/typescriptServices']);
+
+function bundleOne(moduleId, exclude) {
+	requirejs.optimize({
+		baseUrl: 'release/dev/',
+		name: 'vs/language/typescript/' + moduleId,
+		out: 'release/min/' + moduleId + '.js',
+		exclude: exclude,
+		paths: {
+			'vs/language/typescript': REPO_ROOT + '/release/dev'
+		},
+		optimize: 'none'
+	}, function(buildResponse) {
+		const filePath = path.join(REPO_ROOT, 'release/min/' + moduleId + '.js');
+		const fileContents = fs.readFileSync(filePath).toString();
+		console.log();
+		console.log(`Minifying ${filePath}...`);
+		const result = UglifyJS.minify(fileContents, {
+			output: {
+				comments: 'some'
+			}
+		});
+		console.log(`Done.`);
+		fs.writeFileSync(filePath, BUNDLED_FILE_HEADER + result.code);
+	})
+}

scripts/git.js

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+const path = require('path');
+const fs = require('fs');
+
+exports.getGitVersion = function(repo) {
+	var git = path.join(repo, '.git');
+	var headPath = path.join(git, 'HEAD');
+	var head;
+
+	try {
+		head = fs.readFileSync(headPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	if (/^[0-9a-f]{40}$/i.test(head)) {
+		return head;
+	}
+
+	var refMatch = /^ref: (.*)$/.exec(head);
+
+	if (!refMatch) {
+		return void 0;
+	}
+
+	var ref = refMatch[1];
+	var refPath = path.join(git, ref);
+
+	try {
+		return fs.readFileSync(refPath, 'utf8').trim();
+	} catch (e) {
+		// noop
+	}
+
+	var packedRefsPath = path.join(git, 'packed-refs');
+	var refsRaw;
+
+	try {
+		refsRaw = fs.readFileSync(packedRefsPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	var refsRegex = /^([0-9a-f]{40})\s+(.+)$/gm;
+	var refsMatch;
+	var refs = {};
+
+	while (refsMatch = refsRegex.exec(refsRaw)) {
+		refs[refsMatch[2]] = refsMatch[1];
+	}
+
+	return refs[ref];
+};