monaco-editor/build/utils.js

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

const fs = require('fs');
const path = require('path');
const cp = require('child_process');

const REPO_ROOT = path.join(__dirname, '..');

/**
 * Copy a file.
 *
 * @param {string} _source
 * @param {string} _destination
 */
function copyFile(_source, _destination) {
	const source = path.join(REPO_ROOT, _source);
	const destination = path.join(REPO_ROOT, _destination);

	// ensure target dir
	(function () {
		/** @type {string[]} */
		const dirs = [];
		/** @type {string} */
		let dirname = path.dirname(destination);
		while (dirname.length > REPO_ROOT.length) {
			dirs.push(dirname);
			dirname = path.dirname(dirname);
		}
		dirs.reverse();
		dirs.forEach(function (dir) {
			try {
				fs.mkdirSync(dir);
			} catch (err) {}
		});
	})();

	fs.writeFileSync(destination, fs.readFileSync(source));

	console.log(`Copied ${_source} to ${_destination}`);
}
exports.copyFile = copyFile;

/**
 * Remove a directory and all its contents.
 *
 * @param {string} _dirPath
 */
function removeDir(_dirPath) {
	const dirPath = path.join(REPO_ROOT, _dirPath);
	if (!fs.existsSync(dirPath)) {
		return;
	}
	rmDir(dirPath);
	console.log(`Deleted ${_dirPath}`);

	/**
	 * @param {string} dirPath
	 */
	function rmDir(dirPath) {
		const entries = fs.readdirSync(dirPath);
		for (const entry of entries) {
			const filePath = path.join(dirPath, entry);
			if (fs.statSync(filePath).isFile()) {
				fs.unlinkSync(filePath);
			} else {
				rmDir(filePath);
			}
		}
		fs.rmdirSync(dirPath);
	}
}
exports.removeDir = removeDir;

/**
 * Launch the typescript compiler synchronously over a project.
 *
 * @param {string} _projectPath
 */
function tsc(_projectPath) {
	const projectPath = path.join(REPO_ROOT, _projectPath);
	console.log(`Launching compiler at ${_projectPath}...`);
	cp.spawnSync(
		process.execPath,
		[path.join(__dirname, '../node_modules/typescript/lib/tsc.js'), '-p', projectPath],
		{ stdio: 'inherit', stderr: 'inherit' }
	);
	console.log(`Compiled ${_projectPath}`);
}
exports.tsc = tsc;

/**
 * Launch prettier on a specific file.
 *
 * @param {string} _filePath
 */
function prettier(_filePath) {
	const filePath = path.join(REPO_ROOT, _filePath);
	cp.spawnSync(
		process.execPath,
		[path.join(__dirname, '../node_modules/prettier/bin-prettier.js'), '--write', filePath],
		{ stdio: 'inherit', stderr: 'inherit' }
	);

	console.log(`Ran prettier over ${_filePath}`);
}
exports.prettier = prettier;

/**
 * Transform an external .d.ts file to an internal .d.ts file
 *
 * @param {string} _source
 * @param {string} _destination
 * @param {string} namespace
 */
function dts(_source, _destination, namespace) {
	const source = path.join(REPO_ROOT, _source);
	const destination = path.join(REPO_ROOT, _destination);

	const lines = fs
		.readFileSync(source)
		.toString()
		.split(/\r\n|\r|\n/);

	let result = [
		`/*---------------------------------------------------------------------------------------------`,
		` *  Copyright (c) Microsoft Corporation. All rights reserved.`,
		` *  Licensed under the MIT License. See License.txt in the project root for license information.`,
		` *--------------------------------------------------------------------------------------------*/`,
		``,
		`/// <reference path="../node_modules/monaco-editor-core/monaco.d.ts" />`,
		``,
		`declare namespace ${namespace} {`
	];
	for (let line of lines) {
		if (/^import/.test(line)) {
			continue;
		}
		line = line.replace(/    /g, '\t');
		line = line.replace(/declare /g, '');
		if (line.length > 0) {
			line = `\t${line}`;
			result.push(line);
		}
	}
	result.push(`}`);
	result.push(``);

	fs.writeFileSync(destination, result.join('\n'));

	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;