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vscode bootstrap.js

created Oct 21st 2020, 13:05 by AnzhariPurnomo


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786 words
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/
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *
*/
 
//@ts-check
'use strict';
 
// Simple module style to support node.js and browser environments
(function (globalThis, factory) {
 
    // Node.js
    if (typeof exports === 'object') {
        module.exports = factory();
    }
 
    // Browser
    else {
        globalThis.MonacoBootstrap = factory();
    }
}(this, function () {
    const Module = typeof require === 'function' ? require('module') : undefined;
    const path = typeof require === 'function' ? require('path') : undefined;
    const fs = typeof require === 'function' ? require('fs') : undefined;
 
    //#region global bootstrapping
 
    // increase number of stack frames(from 10, https://github.com/v8/v8/wiki/Stack-Trace-API)
    Error.stackTraceLimit = 100;
 
    // Workaround for Electron not installing a handler to ignore SIGPIPE
    // (https://github.com/electron/electron/issues/13254)
    if (typeof process !== 'undefined') {
        process.on('SIGPIPE', () => {
            console.error(new Error('Unexpected SIGPIPE'));
        });
    }
 
    //#endregion
 
 
    //#region Add support for using node_modules.asar
 
    /**
     * @param {string} appRoot
     */
    function enableASARSupport(appRoot) {
        if (!path || !Module) {
            console.warn('enableASARSupport() is only available in node.js environments');
            return;
        }
 
        let NODE_MODULES_PATH = appRoot ? path.join(appRoot, 'node_modules') : undefined;
        if (!NODE_MODULES_PATH) {
            NODE_MODULES_PATH = path.join(__dirname, '../node_modules');
        } else {
            // use the drive letter casing of __dirname
            if (process.platform === 'win32') {
                NODE_MODULES_PATH = __dirname.substr(0, 1) + NODE_MODULES_PATH.substr(1);
            }
        }
 
        const NODE_MODULES_ASAR_PATH = `${NODE_MODULES_PATH}.asar`;
 
        // @ts-ignore
        const originalResolveLookupPaths = Module._resolveLookupPaths;
 
        // @ts-ignore
        Module._resolveLookupPaths = function (request, parent) {
            const paths = originalResolveLookupPaths(request, parent);
            if (Array.isArray(paths)) {
                for (let i = 0, len = paths.length; i < len; i++) {
                    if (paths[i] === NODE_MODULES_PATH) {
                        paths.splice(i, 0, NODE_MODULES_ASAR_PATH);
                        break;
                    }
                }
            }
 
            return paths;
        };
    }
 
    //#endregion
 
 
    //#region URI helpers
 
    /**
     * @param {string} path
     * @param {{ isWindows?: boolean, scheme?: string, fallbackAuthority?: string }} config
     * @returns {string}
     */
    function fileUriFromPath(path, config) {
 
        // Since we are building a URI, we normalize any backlsash
        // to slashes and we ensure that the path begins with a '/'.
        let pathName = path.replace(/\\/g, '/');
        if (pathName.length >  && pathName.charAt(0) !== '/') {
            pathName = `/${pathName}`;
        }
 
        /** @type {string} */
        let uri;
 
        // Windows: in order to support UNC paths (which start with '//')
        // that have their own authority, we do not use the provided authority
        // but rather preserve it.
        if (config.isWindows && pathName.startsWith('//')) {
            uri = encodeURI(`${config.scheme || 'file'}:${pathName}`);
        }
 
        // Otherwise we optionally add the provided authority if specified
        else {
            uri = encodeURI(`${config.scheme || 'file'}://${config.fallbackAuthority || ''}${pathName}`);
        }
 
        return uri.replace(/#/g, '%23');
    }
 
    //#endregion
 
 
    //#region NLS helpers
 
    /**
     * @returns {{locale?: string, availableLanguages: {[lang: string]: string;}, pseudo?: boolean }}
     */
    function setupNLS() {
        if (!path || !fs) {
            console.warn('setupNLS() is only available in node.js environments');
            return;
        }
 
        // Get the nls configuration into the process.env as early as possible.
        let nlsConfig = { availableLanguages: {} };
        if (process.env['VSCODE_NLS_CONFIG']) {
            try {
                nlsConfig = JSON.parse(process.env['VSCODE_NLS_CONFIG']);
            } catch (e) {
                // Ignore
            }
        }
 
        if (nlsConfig._resolvedLanguagePackCoreLocation) {
            const bundles = Object.create(null);
 
            nlsConfig.loadBundle = function (bundle, language, cb) {
                const result = bundles[bundle];
                if (result) {
                    cb(undefined, result);
 
                    return;
                }
 
                const bundleFile = path.join(nlsConfig._resolvedLanguagePackCoreLocation, `${bundle.replace(/\//g, '!')}.nls.json`);
                fs.promises.readFile(bundleFile, 'utf8').then(function (content) {
                    const json = JSON.parse(content);
                    bundles[bundle] = json;
 
                    cb(undefined, json);
                }).catch((error) => {
                    try {
                        if (nlsConfig._corruptedFile) {
                            fs.promises.writeFile(nlsConfig._corruptedFile, 'corrupted', 'utf8').catch(function (error) { console.error(error); });
                        }
                    } finally {
                        cb(error, undefined);
                    }
                });
            };
        }
 
        return nlsConfig;
    }
 
    //#endregion
 
 
    //#region Portable helpers
 
    /**
     * @param {{ portable: string; applicationName: string; }} product
     * @returns {{ portableDataPath: string; isPortable: boolean; }}
     */
    function configurePortable(product) {
        if (!path || !fs) {
            console.warn('configurePortable() is only available in node.js environments');
            return;
        }
 
        const appRoot = path.dirname(__dirname);
 
        function getApplicationPath() {
            if (process.env['VSCODE_DEV']) {
                return appRoot;
            }
 
            if (process.platform === 'darwin') {
                return path.dirname(path.dirname(path.dirname(appRoot)));
            }
 
            return path.dirname(path.dirname(appRoot));
        }
 
        function getPortableDataPath() {
            if (process.env['VSCODE_PORTABLE']) {
                return process.env['VSCODE_PORTABLE'];
            }
 
            if (process.platform === 'win32' || process.platform === 'linux') {
                return path.join(getApplicationPath(), 'data');
            }
 
            // @ts-ignore
            const portableDataName = product.portable || `${product.applicationName}-portable-data`;
            return path.join(path.dirname(getApplicationPath()), portableDataName);
        }
 
        const portableDataPath = getPortableDataPath();
        const isPortable = !('target' in product) && fs.existsSync(portableDataPath);
        const portableTempPath = path.join(portableDataPath, 'tmp');
        const isTempPortable = isPortable && fs.existsSync(portableTempPath);
 
        if (isPortable) {
            process.env['VSCODE_PORTABLE'] = portableDataPath;
        } else {
            delete process.env['VSCODE_PORTABLE'];
        }
 
        if (isTempPortable) {
            if (process.platform === 'win32') {
                process.env['TMP'] = portableTempPath;
                process.env['TEMP'] = portableTempPath;
            } else {
                process.env['TMPDIR'] = portableTempPath;
            }
        }
 
        return {
            portableDataPath,
            isPortable
        };
    }
 
    //#endregion
 
 
    //#region ApplicationInsights
 
    // Prevents appinsights from monkey patching modules.
    // This should be called before importing the applicationinsights module
    function avoidMonkeyPatchFromAppInsights() {
        if (typeof process === 'undefined') {
            console.warn('avoidMonkeyPatchFromAppInsights() is only available in node.js environments');
            return;
        }
 
        // @ts-ignore
        process.env['APPLICATION_INSIGHTS_NO_DIAGNOSTIC_CHANNEL'] = true; // Skip monkey patching of 3rd party modules by appinsights
        global['diagnosticsSource'] = {}; // Prevents diagnostic channel (which patches "require") from initializing entirely
    }
 
    //#endregion
 
 
    return {
        enableASARSupport,
        avoidMonkeyPatchFromAppInsights,
        configurePortable,
        setupNLS,
        fileUriFromPath
    };
}));

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