aws-lambda-nodejs-esbuild/dist/utils.js

λ💨 AWS CDK Construct to bundle JavaScript and TypeScript AWS lambdas using extremely fast esbuild

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getPackagerFromLockfile = exports.getCurrentPackager = exports.nodeMajorVersion = exports.findProjectRoot = exports.findUp = exports.extractFileName = exports.splitLines = exports.safeJsonParse = exports.spawnProcess = exports.SpawnError = void 0;
const childProcess = __importStar(require("child_process"));
const fs = __importStar(require("fs-extra"));
const path = __importStar(require("path"));
const ramda_1 = require("ramda");
class SpawnError extends Error {
    constructor(message, stdout, stderr) {
        super(message);
        this.stdout = stdout;
        this.stderr = stderr;
    }
    toString() {
        return `${this.message}\n${this.stderr}`;
    }
}
exports.SpawnError = SpawnError;
/**
 * Executes a child process without limitations on stdout and stderr.
 * On error (exit code is not 0), it rejects with a SpawnProcessError that contains the stdout and stderr streams,
 * on success it returns the streams in an object.
 * @param {string} command - Command
 * @param {string[]} [args] - Arguments
 * @param {Object} [options] - Options for child_process.spawn
 */
function spawnProcess(command, args, options) {
    var _a, _b;
    const child = childProcess.spawnSync(command, args, options);
    const stdout = (_a = child.stdout) === null || _a === void 0 ? void 0 : _a.toString('utf8');
    const stderr = (_b = child.stderr) === null || _b === void 0 ? void 0 : _b.toString('utf8');
    if (child.status !== 0) {
        throw new SpawnError(`${command} ${ramda_1.join(' ', args)} failed with code ${child.status}`, stdout, stderr);
    }
    return { stdout, stderr };
}
exports.spawnProcess = spawnProcess;
function safeJsonParse(str) {
    try {
        return JSON.parse(str);
    }
    catch (e) {
        return null;
    }
}
exports.safeJsonParse = safeJsonParse;
function splitLines(str) {
    return str.split(/\r?\n/);
}
exports.splitLines = splitLines;
/**
 * Extracts the file name from handler string.
 */
function extractFileName(cwd, handler) {
    const fnName = path.extname(handler);
    const fnNameLastAppearanceIndex = handler.lastIndexOf(fnName);
    // replace only last instance to allow the same name for file and handler
    const fileName = handler.substring(0, fnNameLastAppearanceIndex);
    // Check if the .ts files exists. If so return that to watch
    if (fs.existsSync(path.join(cwd, fileName + '.ts'))) {
        return fileName + '.ts';
    }
    // Check if the .js files exists. If so return that to watch
    if (fs.existsSync(path.join(cwd, fileName + '.js'))) {
        return fileName + '.js';
    }
    // Can't find the files. Watch will have an exception anyway. So throw one with error.
    console.log(`Cannot locate handler - ${fileName} not found`);
    throw new Error('Compilation failed. Please ensure handler exists with ext .ts or .js');
}
exports.extractFileName = extractFileName;
/**
 * Find a file by walking up parent directories
 */
function findUp(name, directory = process.cwd()) {
    const absoluteDirectory = path.resolve(directory);
    if (fs.existsSync(path.join(directory, name))) {
        return directory;
    }
    const { root } = path.parse(absoluteDirectory);
    if (absoluteDirectory === root) {
        return undefined;
    }
    return findUp(name, path.dirname(absoluteDirectory));
}
exports.findUp = findUp;
/**
 * Forwards `rootDir` or finds project root folder.
 */
function findProjectRoot(rootDir) {
    var _a, _b, _c;
    return ((_c = (_b = (_a = rootDir !== null && rootDir !== void 0 ? rootDir : findUp('yarn.lock')) !== null && _a !== void 0 ? _a : findUp('package-lock.json')) !== null && _b !== void 0 ? _b : findUp('package.json')) !== null && _c !== void 0 ? _c : findUp(`.git${path.sep}`));
}
exports.findProjectRoot = findProjectRoot;
/**
 * Returns the major version of node installation
 */
function nodeMajorVersion() {
    return parseInt(process.versions.node.split('.')[0], 10);
}
exports.nodeMajorVersion = nodeMajorVersion;
/**
 * Returns the package manager currently active if the program is executed
 * through an npm or yarn script like:
 * ```bash
 * yarn run example
 * npm run example
 * ```
 */
function getCurrentPackager() {
    const userAgent = process.env.npm_config_user_agent;
    if (!userAgent) {
        return null;
    }
    if (userAgent.startsWith('npm')) {
        return 'npm';
    }
    if (userAgent.startsWith('yarn')) {
        return 'yarn';
    }
    return null;
}
exports.getCurrentPackager = getCurrentPackager;
/**
 * Checks for the presence of package-lock.json or yarn.lock to determine which package manager is being used
 */
function getPackagerFromLockfile(cwd) {
    if (fs.existsSync(path.join(cwd, 'package-lock.json'))) {
        return 'npm';
    }
    if (fs.existsSync(path.join(cwd, 'yarn.lock'))) {
        return 'yarn';
    }
    return null;
}
exports.getPackagerFromLockfile = getPackagerFromLockfile;