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Edit File: child.js
"use strict"; var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault"); var _typeof = require("@babel/runtime/helpers/typeof"); Object.defineProperty(exports, "__esModule", { value: true }); exports.exec = void 0; exports.forkp = forkp; exports.forwardSignalToSpawnedProcesses = forwardSignalToSpawnedProcesses; exports.queue = void 0; exports.spawn = spawn; exports.spawnp = spawnp; function constants() { var data = _interopRequireWildcard(require("../constants.js")); constants = function constants() { return data; }; return data; } function _blockingQueue() { var data = _interopRequireDefault(require("./blocking-queue.js")); _blockingQueue = function _blockingQueue() { return data; }; return data; } function _errors() { var data = require("../errors.js"); _errors = function _errors() { return data; }; return data; } function _promise() { var data = require("./promise.js"); _promise = function _promise() { return data; }; return data; } function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); } function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; } function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; } function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); } function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; } var child = require('child_process'); var fs = require('fs'); var path = require('path'); var queue = new (_blockingQueue()["default"])('child', constants().CHILD_CONCURRENCY); // TODO: this uid check is kinda whack exports.queue = queue; var uid = 0; var exec = (0, _promise().promisify)(child.exec); exports.exec = exec; function validate(program) { var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; if (program.match(/[\\\/]/)) { return; } if (process.platform === 'win32' && process.env.PATHEXT) { var cwd = opts.cwd || process.cwd(); var pathext = process.env.PATHEXT; var _iterator = _createForOfIteratorHelper(pathext.split(';')), _step; try { for (_iterator.s(); !(_step = _iterator.n()).done;) { var ext = _step.value; var candidate = path.join(cwd, "".concat(program).concat(ext)); if (fs.existsSync(candidate)) { throw new Error("Potentially dangerous call to \"".concat(program, "\" in ").concat(cwd)); } } } catch (err) { _iterator.e(err); } finally { _iterator.f(); } } } function forkp(program, args, opts) { validate(program, opts); var key = String(++uid); return new Promise(function (resolve, reject) { var proc = child.fork(program, args, opts); spawnedProcesses[key] = proc; proc.on('error', function (error) { reject(error); }); proc.on('close', function (exitCode) { resolve(exitCode); }); }); } function spawnp(program, args, opts) { validate(program, opts); var key = String(++uid); return new Promise(function (resolve, reject) { var proc = child.spawn(program, args, opts); spawnedProcesses[key] = proc; proc.on('error', function (error) { reject(error); }); proc.on('close', function (exitCode) { resolve(exitCode); }); }); } var spawnedProcesses = {}; function forwardSignalToSpawnedProcesses(signal) { for (var _i = 0, _Object$keys = Object.keys(spawnedProcesses); _i < _Object$keys.length; _i++) { var key = _Object$keys[_i]; spawnedProcesses[key].kill(signal); } } function spawn(program, args) { var opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}; var onData = arguments.length > 3 ? arguments[3] : undefined; var key = opts.cwd || String(++uid); return queue.push(key, function () { return new Promise(function (resolve, reject) { validate(program, opts); var proc = child.spawn(program, args, opts); spawnedProcesses[key] = proc; var processingDone = false; var processClosed = false; var err = null; var stdout = ''; proc.on('error', function (err) { if (err.code === 'ENOENT') { reject(new (_errors().ProcessSpawnError)("Couldn't find the binary ".concat(program), err.code, program)); } else { reject(err); } }); function updateStdout(chunk) { stdout += chunk; if (onData) { onData(chunk); } } function finish() { delete spawnedProcesses[key]; if (err) { reject(err); } else { resolve(stdout.trim()); } } if (typeof opts.process === 'function') { opts.process(proc, updateStdout, reject, function () { if (processClosed) { finish(); } else { processingDone = true; } }); } else { if (proc.stderr) { proc.stderr.on('data', updateStdout); } if (proc.stdout) { proc.stdout.on('data', updateStdout); } processingDone = true; } proc.on('close', function (code, signal) { if (signal || code >= 1) { err = new (_errors().ProcessTermError)(['Command failed.', signal ? "Exit signal: ".concat(signal) : "Exit code: ".concat(code), "Command: ".concat(program), "Arguments: ".concat(args.join(' ')), "Directory: ".concat(opts.cwd || process.cwd()), "Output:\n".concat(stdout.trim())].join('\n')); err.EXIT_SIGNAL = signal; err.EXIT_CODE = code; } if (processingDone || err) { finish(); } else { processClosed = true; } }); }); }); } //# sourceMappingURL=child.js.map