370 lines
12 KiB
TypeScript
370 lines
12 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as ts from 'typescript';
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import * as fs from 'fs';
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import * as path from 'path';
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import * as tss from './treeshaking';
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const REPO_ROOT = path.join(__dirname, '../../');
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const SRC_DIR = path.join(REPO_ROOT, 'src');
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let dirCache: { [dir: string]: boolean; } = {};
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function writeFile(filePath: string, contents: Buffer | string): void {
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function ensureDirs(dirPath: string): void {
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if (dirCache[dirPath]) {
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return;
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}
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dirCache[dirPath] = true;
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ensureDirs(path.dirname(dirPath));
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if (fs.existsSync(dirPath)) {
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return;
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}
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fs.mkdirSync(dirPath);
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}
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ensureDirs(path.dirname(filePath));
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fs.writeFileSync(filePath, contents);
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}
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export function extractEditor(options: tss.ITreeShakingOptions & { destRoot: string }): void {
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const tsConfig = JSON.parse(fs.readFileSync(path.join(options.sourcesRoot, 'tsconfig.monaco.json')).toString());
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let compilerOptions: { [key: string]: any };
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if (tsConfig.extends) {
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compilerOptions = Object.assign({}, require(path.join(options.sourcesRoot, tsConfig.extends)).compilerOptions, tsConfig.compilerOptions);
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delete tsConfig.extends;
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} else {
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compilerOptions = tsConfig.compilerOptions;
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}
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tsConfig.compilerOptions = compilerOptions;
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compilerOptions.noEmit = false;
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compilerOptions.noUnusedLocals = false;
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compilerOptions.preserveConstEnums = false;
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compilerOptions.declaration = false;
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compilerOptions.moduleResolution = ts.ModuleResolutionKind.Classic;
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options.compilerOptions = compilerOptions;
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console.log(`Running tree shaker with shakeLevel ${tss.toStringShakeLevel(options.shakeLevel)}`);
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// Take the extra included .d.ts files from `tsconfig.monaco.json`
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options.typings = (<string[]>tsConfig.include).filter(includedFile => /\.d\.ts$/.test(includedFile));
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// Add extra .d.ts files from `node_modules/@types/`
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if (Array.isArray(options.compilerOptions?.types)) {
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options.compilerOptions.types.forEach((type: string) => {
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options.typings.push(`../node_modules/@types/${type}/index.d.ts`);
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});
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}
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let result = tss.shake(options);
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for (let fileName in result) {
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if (result.hasOwnProperty(fileName)) {
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writeFile(path.join(options.destRoot, fileName), result[fileName]);
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}
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}
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let copied: { [fileName: string]: boolean; } = {};
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const copyFile = (fileName: string) => {
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if (copied[fileName]) {
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return;
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}
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copied[fileName] = true;
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const srcPath = path.join(options.sourcesRoot, fileName);
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const dstPath = path.join(options.destRoot, fileName);
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writeFile(dstPath, fs.readFileSync(srcPath));
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};
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const writeOutputFile = (fileName: string, contents: string | Buffer) => {
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writeFile(path.join(options.destRoot, fileName), contents);
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};
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for (let fileName in result) {
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if (result.hasOwnProperty(fileName)) {
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const fileContents = result[fileName];
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const info = ts.preProcessFile(fileContents);
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for (let i = info.importedFiles.length - 1; i >= 0; i--) {
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const importedFileName = info.importedFiles[i].fileName;
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let importedFilePath: string;
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if (/^vs\/css!/.test(importedFileName)) {
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importedFilePath = importedFileName.substr('vs/css!'.length) + '.css';
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} else {
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importedFilePath = importedFileName;
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}
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if (/(^\.\/)|(^\.\.\/)/.test(importedFilePath)) {
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importedFilePath = path.join(path.dirname(fileName), importedFilePath);
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}
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if (/\.css$/.test(importedFilePath)) {
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transportCSS(importedFilePath, copyFile, writeOutputFile);
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} else {
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if (fs.existsSync(path.join(options.sourcesRoot, importedFilePath + '.js'))) {
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copyFile(importedFilePath + '.js');
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}
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}
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}
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}
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}
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delete tsConfig.compilerOptions.moduleResolution;
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writeOutputFile('tsconfig.json', JSON.stringify(tsConfig, null, '\t'));
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[
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'vs/css.build.js',
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'vs/css.d.ts',
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'vs/css.js',
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'vs/loader.js',
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'vs/nls.build.js',
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'vs/nls.d.ts',
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'vs/nls.js',
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'vs/nls.mock.ts',
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].forEach(copyFile);
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}
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export interface IOptions2 {
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srcFolder: string;
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outFolder: string;
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outResourcesFolder: string;
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ignores: string[];
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renames: { [filename: string]: string; };
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}
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export function createESMSourcesAndResources2(options: IOptions2): void {
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const SRC_FOLDER = path.join(REPO_ROOT, options.srcFolder);
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const OUT_FOLDER = path.join(REPO_ROOT, options.outFolder);
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const OUT_RESOURCES_FOLDER = path.join(REPO_ROOT, options.outResourcesFolder);
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const getDestAbsoluteFilePath = (file: string): string => {
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let dest = options.renames[file.replace(/\\/g, '/')] || file;
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if (dest === 'tsconfig.json') {
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return path.join(OUT_FOLDER, `tsconfig.json`);
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}
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if (/\.ts$/.test(dest)) {
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return path.join(OUT_FOLDER, dest);
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}
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return path.join(OUT_RESOURCES_FOLDER, dest);
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};
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const allFiles = walkDirRecursive(SRC_FOLDER);
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for (const file of allFiles) {
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if (options.ignores.indexOf(file.replace(/\\/g, '/')) >= 0) {
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continue;
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}
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if (file === 'tsconfig.json') {
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const tsConfig = JSON.parse(fs.readFileSync(path.join(SRC_FOLDER, file)).toString());
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tsConfig.compilerOptions.module = 'es6';
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tsConfig.compilerOptions.outDir = path.join(path.relative(OUT_FOLDER, OUT_RESOURCES_FOLDER), 'vs').replace(/\\/g, '/');
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write(getDestAbsoluteFilePath(file), JSON.stringify(tsConfig, null, '\t'));
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continue;
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}
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if (/\.d\.ts$/.test(file) || /\.css$/.test(file) || /\.js$/.test(file) || /\.ttf$/.test(file)) {
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// Transport the files directly
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write(getDestAbsoluteFilePath(file), fs.readFileSync(path.join(SRC_FOLDER, file)));
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continue;
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}
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if (/\.ts$/.test(file)) {
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// Transform the .ts file
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let fileContents = fs.readFileSync(path.join(SRC_FOLDER, file)).toString();
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const info = ts.preProcessFile(fileContents);
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for (let i = info.importedFiles.length - 1; i >= 0; i--) {
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const importedFilename = info.importedFiles[i].fileName;
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const pos = info.importedFiles[i].pos;
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const end = info.importedFiles[i].end;
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let importedFilepath: string;
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if (/^vs\/css!/.test(importedFilename)) {
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importedFilepath = importedFilename.substr('vs/css!'.length) + '.css';
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} else {
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importedFilepath = importedFilename;
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}
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if (/(^\.\/)|(^\.\.\/)/.test(importedFilepath)) {
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importedFilepath = path.join(path.dirname(file), importedFilepath);
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}
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let relativePath: string;
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if (importedFilepath === path.dirname(file).replace(/\\/g, '/')) {
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relativePath = '../' + path.basename(path.dirname(file));
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} else if (importedFilepath === path.dirname(path.dirname(file)).replace(/\\/g, '/')) {
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relativePath = '../../' + path.basename(path.dirname(path.dirname(file)));
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} else {
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relativePath = path.relative(path.dirname(file), importedFilepath);
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}
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relativePath = relativePath.replace(/\\/g, '/');
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if (!/(^\.\/)|(^\.\.\/)/.test(relativePath)) {
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relativePath = './' + relativePath;
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}
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fileContents = (
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fileContents.substring(0, pos + 1)
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+ relativePath
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+ fileContents.substring(end + 1)
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);
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}
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fileContents = fileContents.replace(/import ([a-zA-z0-9]+) = require\(('[^']+')\);/g, function (_, m1, m2) {
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return `import * as ${m1} from ${m2};`;
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});
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write(getDestAbsoluteFilePath(file), fileContents);
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continue;
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}
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console.log(`UNKNOWN FILE: ${file}`);
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}
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function walkDirRecursive(dir: string): string[] {
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if (dir.charAt(dir.length - 1) !== '/' || dir.charAt(dir.length - 1) !== '\\') {
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dir += '/';
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}
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let result: string[] = [];
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_walkDirRecursive(dir, result, dir.length);
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return result;
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}
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function _walkDirRecursive(dir: string, result: string[], trimPos: number): void {
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const files = fs.readdirSync(dir);
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for (let i = 0; i < files.length; i++) {
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const file = path.join(dir, files[i]);
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if (fs.statSync(file).isDirectory()) {
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_walkDirRecursive(file, result, trimPos);
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} else {
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result.push(file.substr(trimPos));
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}
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}
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}
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function write(absoluteFilePath: string, contents: string | Buffer): void {
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if (/(\.ts$)|(\.js$)/.test(absoluteFilePath)) {
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contents = toggleComments(contents.toString());
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}
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writeFile(absoluteFilePath, contents);
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function toggleComments(fileContents: string): string {
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let lines = fileContents.split(/\r\n|\r|\n/);
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let mode = 0;
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for (let i = 0; i < lines.length; i++) {
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const line = lines[i];
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if (mode === 0) {
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if (/\/\/ ESM-comment-begin/.test(line)) {
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mode = 1;
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continue;
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}
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if (/\/\/ ESM-uncomment-begin/.test(line)) {
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mode = 2;
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continue;
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}
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continue;
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}
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if (mode === 1) {
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if (/\/\/ ESM-comment-end/.test(line)) {
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mode = 0;
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continue;
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}
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lines[i] = '// ' + line;
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continue;
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}
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if (mode === 2) {
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if (/\/\/ ESM-uncomment-end/.test(line)) {
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mode = 0;
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continue;
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}
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lines[i] = line.replace(/^(\s*)\/\/ ?/, function (_, indent) {
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return indent;
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});
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}
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}
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return lines.join('\n');
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}
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}
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}
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function transportCSS(module: string, enqueue: (module: string) => void, write: (path: string, contents: string | Buffer) => void): boolean {
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if (!/\.css/.test(module)) {
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return false;
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}
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const filename = path.join(SRC_DIR, module);
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const fileContents = fs.readFileSync(filename).toString();
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const inlineResources = 'base64'; // see https://github.com/microsoft/monaco-editor/issues/148
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const newContents = _rewriteOrInlineUrls(fileContents, inlineResources === 'base64');
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write(module, newContents);
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return true;
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function _rewriteOrInlineUrls(contents: string, forceBase64: boolean): string {
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return _replaceURL(contents, (url) => {
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const fontMatch = url.match(/^(.*).ttf\?(.*)$/);
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if (fontMatch) {
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const relativeFontPath = `${fontMatch[1]}.ttf`; // trim the query parameter
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const fontPath = path.join(path.dirname(module), relativeFontPath);
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enqueue(fontPath);
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return relativeFontPath;
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}
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const imagePath = path.join(path.dirname(module), url);
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const fileContents = fs.readFileSync(path.join(SRC_DIR, imagePath));
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const MIME = /\.svg$/.test(url) ? 'image/svg+xml' : 'image/png';
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let DATA = ';base64,' + fileContents.toString('base64');
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if (!forceBase64 && /\.svg$/.test(url)) {
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// .svg => url encode as explained at https://codepen.io/tigt/post/optimizing-svgs-in-data-uris
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let newText = fileContents.toString()
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.replace(/"/g, '\'')
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.replace(/</g, '%3C')
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.replace(/>/g, '%3E')
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.replace(/&/g, '%26')
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.replace(/#/g, '%23')
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.replace(/\s+/g, ' ');
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let encodedData = ',' + newText;
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if (encodedData.length < DATA.length) {
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DATA = encodedData;
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}
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}
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return '"data:' + MIME + DATA + '"';
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});
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}
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function _replaceURL(contents: string, replacer: (url: string) => string): string {
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// Use ")" as the terminator as quotes are oftentimes not used at all
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return contents.replace(/url\(\s*([^\)]+)\s*\)?/g, (_: string, ...matches: string[]) => {
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let url = matches[0];
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// Eliminate starting quotes (the initial whitespace is not captured)
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if (url.charAt(0) === '"' || url.charAt(0) === '\'') {
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url = url.substring(1);
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}
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// The ending whitespace is captured
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while (url.length > 0 && (url.charAt(url.length - 1) === ' ' || url.charAt(url.length - 1) === '\t')) {
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url = url.substring(0, url.length - 1);
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}
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// Eliminate ending quotes
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if (url.charAt(url.length - 1) === '"' || url.charAt(url.length - 1) === '\'') {
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url = url.substring(0, url.length - 1);
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}
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if (!_startsWith(url, 'data:') && !_startsWith(url, 'http://') && !_startsWith(url, 'https://')) {
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url = replacer(url);
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}
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return 'url(' + url + ')';
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});
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}
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function _startsWith(haystack: string, needle: string): boolean {
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return haystack.length >= needle.length && haystack.substr(0, needle.length) === needle;
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}
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}
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