2376 lines
		
	
	
		
			90 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			2376 lines
		
	
	
		
			90 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| "use strict";
 | |
| var __extends = (this && this.__extends) || (function () {
 | |
|     var extendStatics = function (d, b) {
 | |
|         extendStatics = Object.setPrototypeOf ||
 | |
|             ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
 | |
|             function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
 | |
|         return extendStatics(d, b);
 | |
|     };
 | |
|     return function (d, b) {
 | |
|         if (typeof b !== "function" && b !== null)
 | |
|             throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
 | |
|         extendStatics(d, b);
 | |
|         function __() { this.constructor = d; }
 | |
|         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 | |
|     };
 | |
| })();
 | |
| var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
 | |
|     if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
 | |
|         if (ar || !(i in from)) {
 | |
|             if (!ar) ar = Array.prototype.slice.call(from, 0, i);
 | |
|             ar[i] = from[i];
 | |
|         }
 | |
|     }
 | |
|     return to.concat(ar || Array.prototype.slice.call(from));
 | |
| };
 | |
| Object.defineProperty(exports, "__esModule", { value: true });
 | |
| exports.FSWatcher = exports.StatWatcher = exports.Volume = exports.toUnixTimestamp = exports.bufferToEncoding = exports.dataToBuffer = exports.dataToStr = exports.pathToSteps = exports.filenameToSteps = exports.pathToFilename = exports.flagsToNumber = exports.FLAGS = void 0;
 | |
| var pathModule = require("path");
 | |
| var node_1 = require("./node");
 | |
| var Stats_1 = require("./Stats");
 | |
| var Dirent_1 = require("./Dirent");
 | |
| var buffer_1 = require("./internal/buffer");
 | |
| var setImmediate_1 = require("./setImmediate");
 | |
| var process_1 = require("./process");
 | |
| var setTimeoutUnref_1 = require("./setTimeoutUnref");
 | |
| var stream_1 = require("stream");
 | |
| var constants_1 = require("./constants");
 | |
| var events_1 = require("events");
 | |
| var encoding_1 = require("./encoding");
 | |
| var errors = require("./internal/errors");
 | |
| var util = require("util");
 | |
| var promises_1 = require("./promises");
 | |
| var resolveCrossPlatform = pathModule.resolve;
 | |
| var O_RDONLY = constants_1.constants.O_RDONLY, O_WRONLY = constants_1.constants.O_WRONLY, O_RDWR = constants_1.constants.O_RDWR, O_CREAT = constants_1.constants.O_CREAT, O_EXCL = constants_1.constants.O_EXCL, O_TRUNC = constants_1.constants.O_TRUNC, O_APPEND = constants_1.constants.O_APPEND, O_SYNC = constants_1.constants.O_SYNC, O_DIRECTORY = constants_1.constants.O_DIRECTORY, F_OK = constants_1.constants.F_OK, COPYFILE_EXCL = constants_1.constants.COPYFILE_EXCL, COPYFILE_FICLONE_FORCE = constants_1.constants.COPYFILE_FICLONE_FORCE;
 | |
| var _a = pathModule.posix ? pathModule.posix : pathModule, sep = _a.sep, relative = _a.relative, join = _a.join, dirname = _a.dirname;
 | |
| var isWin = process_1.default.platform === 'win32';
 | |
| var kMinPoolSpace = 128;
 | |
| // const kMaxLength = require('buffer').kMaxLength;
 | |
| // ---------------------------------------- Error messages
 | |
| // TODO: Use `internal/errors.js` in the future.
 | |
| var ERRSTR = {
 | |
|     PATH_STR: 'path must be a string or Buffer',
 | |
|     // FD:             'file descriptor must be a unsigned 32-bit integer',
 | |
|     FD: 'fd must be a file descriptor',
 | |
|     MODE_INT: 'mode must be an int',
 | |
|     CB: 'callback must be a function',
 | |
|     UID: 'uid must be an unsigned int',
 | |
|     GID: 'gid must be an unsigned int',
 | |
|     LEN: 'len must be an integer',
 | |
|     ATIME: 'atime must be an integer',
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|     MTIME: 'mtime must be an integer',
 | |
|     PREFIX: 'filename prefix is required',
 | |
|     BUFFER: 'buffer must be an instance of Buffer or StaticBuffer',
 | |
|     OFFSET: 'offset must be an integer',
 | |
|     LENGTH: 'length must be an integer',
 | |
|     POSITION: 'position must be an integer',
 | |
| };
 | |
| var ERRSTR_OPTS = function (tipeof) { return "Expected options to be either an object or a string, but got ".concat(tipeof, " instead"); };
 | |
| // const ERRSTR_FLAG = flag => `Unknown file open flag: ${flag}`;
 | |
| var ENOENT = 'ENOENT';
 | |
| var EBADF = 'EBADF';
 | |
| var EINVAL = 'EINVAL';
 | |
| var EPERM = 'EPERM';
 | |
| var EPROTO = 'EPROTO';
 | |
| var EEXIST = 'EEXIST';
 | |
| var ENOTDIR = 'ENOTDIR';
 | |
| var EMFILE = 'EMFILE';
 | |
| var EACCES = 'EACCES';
 | |
| var EISDIR = 'EISDIR';
 | |
| var ENOTEMPTY = 'ENOTEMPTY';
 | |
| var ENOSYS = 'ENOSYS';
 | |
| var ERR_FS_EISDIR = 'ERR_FS_EISDIR';
 | |
| function formatError(errorCode, func, path, path2) {
 | |
|     if (func === void 0) { func = ''; }
 | |
|     if (path === void 0) { path = ''; }
 | |
|     if (path2 === void 0) { path2 = ''; }
 | |
|     var pathFormatted = '';
 | |
|     if (path)
 | |
|         pathFormatted = " '".concat(path, "'");
 | |
|     if (path2)
 | |
|         pathFormatted += " -> '".concat(path2, "'");
 | |
|     switch (errorCode) {
 | |
|         case ENOENT:
 | |
|             return "ENOENT: no such file or directory, ".concat(func).concat(pathFormatted);
 | |
|         case EBADF:
 | |
|             return "EBADF: bad file descriptor, ".concat(func).concat(pathFormatted);
 | |
|         case EINVAL:
 | |
|             return "EINVAL: invalid argument, ".concat(func).concat(pathFormatted);
 | |
|         case EPERM:
 | |
|             return "EPERM: operation not permitted, ".concat(func).concat(pathFormatted);
 | |
|         case EPROTO:
 | |
|             return "EPROTO: protocol error, ".concat(func).concat(pathFormatted);
 | |
|         case EEXIST:
 | |
|             return "EEXIST: file already exists, ".concat(func).concat(pathFormatted);
 | |
|         case ENOTDIR:
 | |
|             return "ENOTDIR: not a directory, ".concat(func).concat(pathFormatted);
 | |
|         case EISDIR:
 | |
|             return "EISDIR: illegal operation on a directory, ".concat(func).concat(pathFormatted);
 | |
|         case EACCES:
 | |
|             return "EACCES: permission denied, ".concat(func).concat(pathFormatted);
 | |
|         case ENOTEMPTY:
 | |
|             return "ENOTEMPTY: directory not empty, ".concat(func).concat(pathFormatted);
 | |
|         case EMFILE:
 | |
|             return "EMFILE: too many open files, ".concat(func).concat(pathFormatted);
 | |
|         case ENOSYS:
 | |
|             return "ENOSYS: function not implemented, ".concat(func).concat(pathFormatted);
 | |
|         case ERR_FS_EISDIR:
 | |
|             return "[ERR_FS_EISDIR]: Path is a directory: ".concat(func, " returned EISDIR (is a directory) ").concat(path);
 | |
|         default:
 | |
|             return "".concat(errorCode, ": error occurred, ").concat(func).concat(pathFormatted);
 | |
|     }
 | |
| }
 | |
| function createError(errorCode, func, path, path2, Constructor) {
 | |
|     if (func === void 0) { func = ''; }
 | |
|     if (path === void 0) { path = ''; }
 | |
|     if (path2 === void 0) { path2 = ''; }
 | |
|     if (Constructor === void 0) { Constructor = Error; }
 | |
|     var error = new Constructor(formatError(errorCode, func, path, path2));
 | |
|     error.code = errorCode;
 | |
|     if (path) {
 | |
|         error.path = path;
 | |
|     }
 | |
|     return error;
 | |
| }
 | |
| // ---------------------------------------- Flags
 | |
| // List of file `flags` as defined by Node.
 | |
| var FLAGS;
 | |
| (function (FLAGS) {
 | |
|     // Open file for reading. An exception occurs if the file does not exist.
 | |
|     FLAGS[FLAGS["r"] = O_RDONLY] = "r";
 | |
|     // Open file for reading and writing. An exception occurs if the file does not exist.
 | |
|     FLAGS[FLAGS["r+"] = O_RDWR] = "r+";
 | |
|     // Open file for reading in synchronous mode. Instructs the operating system to bypass the local file system cache.
 | |
|     FLAGS[FLAGS["rs"] = O_RDONLY | O_SYNC] = "rs";
 | |
|     FLAGS[FLAGS["sr"] = FLAGS.rs] = "sr";
 | |
|     // Open file for reading and writing, telling the OS to open it synchronously. See notes for 'rs' about using this with caution.
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|     FLAGS[FLAGS["rs+"] = O_RDWR | O_SYNC] = "rs+";
 | |
|     FLAGS[FLAGS["sr+"] = FLAGS['rs+']] = "sr+";
 | |
|     // Open file for writing. The file is created (if it does not exist) or truncated (if it exists).
 | |
|     FLAGS[FLAGS["w"] = O_WRONLY | O_CREAT | O_TRUNC] = "w";
 | |
|     // Like 'w' but fails if path exists.
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|     FLAGS[FLAGS["wx"] = O_WRONLY | O_CREAT | O_TRUNC | O_EXCL] = "wx";
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|     FLAGS[FLAGS["xw"] = FLAGS.wx] = "xw";
 | |
|     // Open file for reading and writing. The file is created (if it does not exist) or truncated (if it exists).
 | |
|     FLAGS[FLAGS["w+"] = O_RDWR | O_CREAT | O_TRUNC] = "w+";
 | |
|     // Like 'w+' but fails if path exists.
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|     FLAGS[FLAGS["wx+"] = O_RDWR | O_CREAT | O_TRUNC | O_EXCL] = "wx+";
 | |
|     FLAGS[FLAGS["xw+"] = FLAGS['wx+']] = "xw+";
 | |
|     // Open file for appending. The file is created if it does not exist.
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|     FLAGS[FLAGS["a"] = O_WRONLY | O_APPEND | O_CREAT] = "a";
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|     // Like 'a' but fails if path exists.
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|     FLAGS[FLAGS["ax"] = O_WRONLY | O_APPEND | O_CREAT | O_EXCL] = "ax";
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|     FLAGS[FLAGS["xa"] = FLAGS.ax] = "xa";
 | |
|     // Open file for reading and appending. The file is created if it does not exist.
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|     FLAGS[FLAGS["a+"] = O_RDWR | O_APPEND | O_CREAT] = "a+";
 | |
|     // Like 'a+' but fails if path exists.
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|     FLAGS[FLAGS["ax+"] = O_RDWR | O_APPEND | O_CREAT | O_EXCL] = "ax+";
 | |
|     FLAGS[FLAGS["xa+"] = FLAGS['ax+']] = "xa+";
 | |
| })(FLAGS = exports.FLAGS || (exports.FLAGS = {}));
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| function flagsToNumber(flags) {
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|     if (typeof flags === 'number')
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|         return flags;
 | |
|     if (typeof flags === 'string') {
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|         var flagsNum = FLAGS[flags];
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|         if (typeof flagsNum !== 'undefined')
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|             return flagsNum;
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|     }
 | |
|     // throw new TypeError(formatError(ERRSTR_FLAG(flags)));
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|     throw new errors.TypeError('ERR_INVALID_OPT_VALUE', 'flags', flags);
 | |
| }
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| exports.flagsToNumber = flagsToNumber;
 | |
| // ---------------------------------------- Options
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| function getOptions(defaults, options) {
 | |
|     var opts;
 | |
|     if (!options)
 | |
|         return defaults;
 | |
|     else {
 | |
|         var tipeof = typeof options;
 | |
|         switch (tipeof) {
 | |
|             case 'string':
 | |
|                 opts = Object.assign({}, defaults, { encoding: options });
 | |
|                 break;
 | |
|             case 'object':
 | |
|                 opts = Object.assign({}, defaults, options);
 | |
|                 break;
 | |
|             default:
 | |
|                 throw TypeError(ERRSTR_OPTS(tipeof));
 | |
|         }
 | |
|     }
 | |
|     if (opts.encoding !== 'buffer')
 | |
|         (0, encoding_1.assertEncoding)(opts.encoding);
 | |
|     return opts;
 | |
| }
 | |
| function optsGenerator(defaults) {
 | |
|     return function (options) { return getOptions(defaults, options); };
 | |
| }
 | |
| function validateCallback(callback) {
 | |
|     if (typeof callback !== 'function')
 | |
|         throw TypeError(ERRSTR.CB);
 | |
|     return callback;
 | |
| }
 | |
| function optsAndCbGenerator(getOpts) {
 | |
|     return function (options, callback) {
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|         return typeof options === 'function' ? [getOpts(), options] : [getOpts(options), validateCallback(callback)];
 | |
|     };
 | |
| }
 | |
| var optsDefaults = {
 | |
|     encoding: 'utf8',
 | |
| };
 | |
| var getDefaultOpts = optsGenerator(optsDefaults);
 | |
| var getDefaultOptsAndCb = optsAndCbGenerator(getDefaultOpts);
 | |
| var readFileOptsDefaults = {
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|     flag: 'r',
 | |
| };
 | |
| var getReadFileOptions = optsGenerator(readFileOptsDefaults);
 | |
| var writeFileDefaults = {
 | |
|     encoding: 'utf8',
 | |
|     mode: 438 /* MODE.DEFAULT */,
 | |
|     flag: FLAGS[FLAGS.w],
 | |
| };
 | |
| var getWriteFileOptions = optsGenerator(writeFileDefaults);
 | |
| var appendFileDefaults = {
 | |
|     encoding: 'utf8',
 | |
|     mode: 438 /* MODE.DEFAULT */,
 | |
|     flag: FLAGS[FLAGS.a],
 | |
| };
 | |
| var getAppendFileOpts = optsGenerator(appendFileDefaults);
 | |
| var getAppendFileOptsAndCb = optsAndCbGenerator(getAppendFileOpts);
 | |
| var realpathDefaults = optsDefaults;
 | |
| var getRealpathOptions = optsGenerator(realpathDefaults);
 | |
| var getRealpathOptsAndCb = optsAndCbGenerator(getRealpathOptions);
 | |
| var mkdirDefaults = {
 | |
|     mode: 511 /* MODE.DIR */,
 | |
|     recursive: false,
 | |
| };
 | |
| var getMkdirOptions = function (options) {
 | |
|     if (typeof options === 'number')
 | |
|         return Object.assign({}, mkdirDefaults, { mode: options });
 | |
|     return Object.assign({}, mkdirDefaults, options);
 | |
| };
 | |
| var rmdirDefaults = {
 | |
|     recursive: false,
 | |
| };
 | |
| var getRmdirOptions = function (options) {
 | |
|     return Object.assign({}, rmdirDefaults, options);
 | |
| };
 | |
| var getRmOpts = optsGenerator(optsDefaults);
 | |
| var getRmOptsAndCb = optsAndCbGenerator(getRmOpts);
 | |
| var readdirDefaults = {
 | |
|     encoding: 'utf8',
 | |
|     withFileTypes: false,
 | |
| };
 | |
| var getReaddirOptions = optsGenerator(readdirDefaults);
 | |
| var getReaddirOptsAndCb = optsAndCbGenerator(getReaddirOptions);
 | |
| var statDefaults = {
 | |
|     bigint: false,
 | |
| };
 | |
| var getStatOptions = function (options) {
 | |
|     if (options === void 0) { options = {}; }
 | |
|     return Object.assign({}, statDefaults, options);
 | |
| };
 | |
| var getStatOptsAndCb = function (options, callback) {
 | |
|     return typeof options === 'function' ? [getStatOptions(), options] : [getStatOptions(options), validateCallback(callback)];
 | |
| };
 | |
| // ---------------------------------------- Utility functions
 | |
| function getPathFromURLPosix(url) {
 | |
|     if (url.hostname !== '') {
 | |
|         throw new errors.TypeError('ERR_INVALID_FILE_URL_HOST', process_1.default.platform);
 | |
|     }
 | |
|     var pathname = url.pathname;
 | |
|     for (var n = 0; n < pathname.length; n++) {
 | |
|         if (pathname[n] === '%') {
 | |
|             var third = pathname.codePointAt(n + 2) | 0x20;
 | |
|             if (pathname[n + 1] === '2' && third === 102) {
 | |
|                 throw new errors.TypeError('ERR_INVALID_FILE_URL_PATH', 'must not include encoded / characters');
 | |
|             }
 | |
|         }
 | |
|     }
 | |
|     return decodeURIComponent(pathname);
 | |
| }
 | |
| function pathToFilename(path) {
 | |
|     if (typeof path !== 'string' && !buffer_1.Buffer.isBuffer(path)) {
 | |
|         try {
 | |
|             if (!(path instanceof require('url').URL))
 | |
|                 throw new TypeError(ERRSTR.PATH_STR);
 | |
|         }
 | |
|         catch (err) {
 | |
|             throw new TypeError(ERRSTR.PATH_STR);
 | |
|         }
 | |
|         path = getPathFromURLPosix(path);
 | |
|     }
 | |
|     var pathString = String(path);
 | |
|     nullCheck(pathString);
 | |
|     // return slash(pathString);
 | |
|     return pathString;
 | |
| }
 | |
| exports.pathToFilename = pathToFilename;
 | |
| var resolve = function (filename, base) {
 | |
|     if (base === void 0) { base = process_1.default.cwd(); }
 | |
|     return resolveCrossPlatform(base, filename);
 | |
| };
 | |
| if (isWin) {
 | |
|     var _resolve_1 = resolve;
 | |
|     var unixify_1 = require('fs-monkey/lib/correctPath').unixify;
 | |
|     resolve = function (filename, base) { return unixify_1(_resolve_1(filename, base)); };
 | |
| }
 | |
| function filenameToSteps(filename, base) {
 | |
|     var fullPath = resolve(filename, base);
 | |
|     var fullPathSansSlash = fullPath.substring(1);
 | |
|     if (!fullPathSansSlash)
 | |
|         return [];
 | |
|     return fullPathSansSlash.split(sep);
 | |
| }
 | |
| exports.filenameToSteps = filenameToSteps;
 | |
| function pathToSteps(path) {
 | |
|     return filenameToSteps(pathToFilename(path));
 | |
| }
 | |
| exports.pathToSteps = pathToSteps;
 | |
| function dataToStr(data, encoding) {
 | |
|     if (encoding === void 0) { encoding = encoding_1.ENCODING_UTF8; }
 | |
|     if (buffer_1.Buffer.isBuffer(data))
 | |
|         return data.toString(encoding);
 | |
|     else if (data instanceof Uint8Array)
 | |
|         return (0, buffer_1.bufferFrom)(data).toString(encoding);
 | |
|     else
 | |
|         return String(data);
 | |
| }
 | |
| exports.dataToStr = dataToStr;
 | |
| function dataToBuffer(data, encoding) {
 | |
|     if (encoding === void 0) { encoding = encoding_1.ENCODING_UTF8; }
 | |
|     if (buffer_1.Buffer.isBuffer(data))
 | |
|         return data;
 | |
|     else if (data instanceof Uint8Array)
 | |
|         return (0, buffer_1.bufferFrom)(data);
 | |
|     else
 | |
|         return (0, buffer_1.bufferFrom)(String(data), encoding);
 | |
| }
 | |
| exports.dataToBuffer = dataToBuffer;
 | |
| function bufferToEncoding(buffer, encoding) {
 | |
|     if (!encoding || encoding === 'buffer')
 | |
|         return buffer;
 | |
|     else
 | |
|         return buffer.toString(encoding);
 | |
| }
 | |
| exports.bufferToEncoding = bufferToEncoding;
 | |
| function nullCheck(path, callback) {
 | |
|     if (('' + path).indexOf('\u0000') !== -1) {
 | |
|         var er = new Error('Path must be a string without null bytes');
 | |
|         er.code = ENOENT;
 | |
|         if (typeof callback !== 'function')
 | |
|             throw er;
 | |
|         process_1.default.nextTick(callback, er);
 | |
|         return false;
 | |
|     }
 | |
|     return true;
 | |
| }
 | |
| function _modeToNumber(mode, def) {
 | |
|     if (typeof mode === 'number')
 | |
|         return mode;
 | |
|     if (typeof mode === 'string')
 | |
|         return parseInt(mode, 8);
 | |
|     if (def)
 | |
|         return modeToNumber(def);
 | |
|     return undefined;
 | |
| }
 | |
| function modeToNumber(mode, def) {
 | |
|     var result = _modeToNumber(mode, def);
 | |
|     if (typeof result !== 'number' || isNaN(result))
 | |
|         throw new TypeError(ERRSTR.MODE_INT);
 | |
|     return result;
 | |
| }
 | |
| function isFd(path) {
 | |
|     return path >>> 0 === path;
 | |
| }
 | |
| function validateFd(fd) {
 | |
|     if (!isFd(fd))
 | |
|         throw TypeError(ERRSTR.FD);
 | |
| }
 | |
| // converts Date or number to a fractional UNIX timestamp
 | |
| function toUnixTimestamp(time) {
 | |
|     // tslint:disable-next-line triple-equals
 | |
|     if (typeof time === 'string' && +time == time) {
 | |
|         return +time;
 | |
|     }
 | |
|     if (time instanceof Date) {
 | |
|         return time.getTime() / 1000;
 | |
|     }
 | |
|     if (isFinite(time)) {
 | |
|         if (time < 0) {
 | |
|             return Date.now() / 1000;
 | |
|         }
 | |
|         return time;
 | |
|     }
 | |
|     throw new Error('Cannot parse time: ' + time);
 | |
| }
 | |
| exports.toUnixTimestamp = toUnixTimestamp;
 | |
| function validateUid(uid) {
 | |
|     if (typeof uid !== 'number')
 | |
|         throw TypeError(ERRSTR.UID);
 | |
| }
 | |
| function validateGid(gid) {
 | |
|     if (typeof gid !== 'number')
 | |
|         throw TypeError(ERRSTR.GID);
 | |
| }
 | |
| function flattenJSON(nestedJSON) {
 | |
|     var flatJSON = {};
 | |
|     function flatten(pathPrefix, node) {
 | |
|         for (var path in node) {
 | |
|             var contentOrNode = node[path];
 | |
|             var joinedPath = join(pathPrefix, path);
 | |
|             if (typeof contentOrNode === 'string') {
 | |
|                 flatJSON[joinedPath] = contentOrNode;
 | |
|             }
 | |
|             else if (typeof contentOrNode === 'object' && contentOrNode !== null && Object.keys(contentOrNode).length > 0) {
 | |
|                 // empty directories need an explicit entry and therefore get handled in `else`, non-empty ones are implicitly considered
 | |
|                 flatten(joinedPath, contentOrNode);
 | |
|             }
 | |
|             else {
 | |
|                 // without this branch null, empty-object or non-object entries would not be handled in the same way
 | |
|                 // by both fromJSON() and fromNestedJSON()
 | |
|                 flatJSON[joinedPath] = null;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
|     flatten('', nestedJSON);
 | |
|     return flatJSON;
 | |
| }
 | |
| /**
 | |
|  * `Volume` represents a file system.
 | |
|  */
 | |
| var Volume = /** @class */ (function () {
 | |
|     function Volume(props) {
 | |
|         if (props === void 0) { props = {}; }
 | |
|         // I-node number counter.
 | |
|         this.ino = 0;
 | |
|         // A mapping for i-node numbers to i-nodes (`Node`);
 | |
|         this.inodes = {};
 | |
|         // List of released i-node numbers, for reuse.
 | |
|         this.releasedInos = [];
 | |
|         // A mapping for file descriptors to `File`s.
 | |
|         this.fds = {};
 | |
|         // A list of reusable (opened and closed) file descriptors, that should be
 | |
|         // used first before creating a new file descriptor.
 | |
|         this.releasedFds = [];
 | |
|         // Max number of open files.
 | |
|         this.maxFiles = 10000;
 | |
|         // Current number of open files.
 | |
|         this.openFiles = 0;
 | |
|         this.promisesApi = (0, promises_1.default)(this);
 | |
|         this.statWatchers = {};
 | |
|         this.props = Object.assign({ Node: node_1.Node, Link: node_1.Link, File: node_1.File }, props);
 | |
|         var root = this.createLink();
 | |
|         root.setNode(this.createNode(true));
 | |
|         var self = this; // tslint:disable-line no-this-assignment
 | |
|         this.StatWatcher = /** @class */ (function (_super) {
 | |
|             __extends(StatWatcher, _super);
 | |
|             function StatWatcher() {
 | |
|                 return _super.call(this, self) || this;
 | |
|             }
 | |
|             return StatWatcher;
 | |
|         }(StatWatcher));
 | |
|         var _ReadStream = FsReadStream;
 | |
|         this.ReadStream = /** @class */ (function (_super) {
 | |
|             __extends(class_1, _super);
 | |
|             function class_1() {
 | |
|                 var args = [];
 | |
|                 for (var _i = 0; _i < arguments.length; _i++) {
 | |
|                     args[_i] = arguments[_i];
 | |
|                 }
 | |
|                 return _super.apply(this, __spreadArray([self], args, false)) || this;
 | |
|             }
 | |
|             return class_1;
 | |
|         }(_ReadStream));
 | |
|         var _WriteStream = FsWriteStream;
 | |
|         this.WriteStream = /** @class */ (function (_super) {
 | |
|             __extends(class_2, _super);
 | |
|             function class_2() {
 | |
|                 var args = [];
 | |
|                 for (var _i = 0; _i < arguments.length; _i++) {
 | |
|                     args[_i] = arguments[_i];
 | |
|                 }
 | |
|                 return _super.apply(this, __spreadArray([self], args, false)) || this;
 | |
|             }
 | |
|             return class_2;
 | |
|         }(_WriteStream));
 | |
|         this.FSWatcher = /** @class */ (function (_super) {
 | |
|             __extends(FSWatcher, _super);
 | |
|             function FSWatcher() {
 | |
|                 return _super.call(this, self) || this;
 | |
|             }
 | |
|             return FSWatcher;
 | |
|         }(FSWatcher));
 | |
|         root.setChild('.', root);
 | |
|         root.getNode().nlink++;
 | |
|         root.setChild('..', root);
 | |
|         root.getNode().nlink++;
 | |
|         this.root = root;
 | |
|     }
 | |
|     Volume.fromJSON = function (json, cwd) {
 | |
|         var vol = new Volume();
 | |
|         vol.fromJSON(json, cwd);
 | |
|         return vol;
 | |
|     };
 | |
|     Volume.fromNestedJSON = function (json, cwd) {
 | |
|         var vol = new Volume();
 | |
|         vol.fromNestedJSON(json, cwd);
 | |
|         return vol;
 | |
|     };
 | |
|     Object.defineProperty(Volume.prototype, "promises", {
 | |
|         get: function () {
 | |
|             if (this.promisesApi === null)
 | |
|                 throw new Error('Promise is not supported in this environment.');
 | |
|             return this.promisesApi;
 | |
|         },
 | |
|         enumerable: false,
 | |
|         configurable: true
 | |
|     });
 | |
|     Volume.prototype.createLink = function (parent, name, isDirectory, perm) {
 | |
|         if (isDirectory === void 0) { isDirectory = false; }
 | |
|         if (!parent) {
 | |
|             return new this.props.Link(this, null, '');
 | |
|         }
 | |
|         if (!name) {
 | |
|             throw new Error('createLink: name cannot be empty');
 | |
|         }
 | |
|         return parent.createChild(name, this.createNode(isDirectory, perm));
 | |
|     };
 | |
|     Volume.prototype.deleteLink = function (link) {
 | |
|         var parent = link.parent;
 | |
|         if (parent) {
 | |
|             parent.deleteChild(link);
 | |
|             return true;
 | |
|         }
 | |
|         return false;
 | |
|     };
 | |
|     Volume.prototype.newInoNumber = function () {
 | |
|         var releasedFd = this.releasedInos.pop();
 | |
|         if (releasedFd)
 | |
|             return releasedFd;
 | |
|         else {
 | |
|             this.ino = (this.ino + 1) % 0xffffffff;
 | |
|             return this.ino;
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.newFdNumber = function () {
 | |
|         var releasedFd = this.releasedFds.pop();
 | |
|         return typeof releasedFd === 'number' ? releasedFd : Volume.fd--;
 | |
|     };
 | |
|     Volume.prototype.createNode = function (isDirectory, perm) {
 | |
|         if (isDirectory === void 0) { isDirectory = false; }
 | |
|         var node = new this.props.Node(this.newInoNumber(), perm);
 | |
|         if (isDirectory)
 | |
|             node.setIsDirectory();
 | |
|         this.inodes[node.ino] = node;
 | |
|         return node;
 | |
|     };
 | |
|     Volume.prototype.getNode = function (ino) {
 | |
|         return this.inodes[ino];
 | |
|     };
 | |
|     Volume.prototype.deleteNode = function (node) {
 | |
|         node.del();
 | |
|         delete this.inodes[node.ino];
 | |
|         this.releasedInos.push(node.ino);
 | |
|     };
 | |
|     // Generates 6 character long random string, used by `mkdtemp`.
 | |
|     Volume.prototype.genRndStr = function () {
 | |
|         var str = (Math.random() + 1).toString(36).substring(2, 8);
 | |
|         if (str.length === 6)
 | |
|             return str;
 | |
|         else
 | |
|             return this.genRndStr();
 | |
|     };
 | |
|     // Returns a `Link` (hard link) referenced by path "split" into steps.
 | |
|     Volume.prototype.getLink = function (steps) {
 | |
|         return this.root.walk(steps);
 | |
|     };
 | |
|     // Just link `getLink`, but throws a correct user error, if link to found.
 | |
|     Volume.prototype.getLinkOrThrow = function (filename, funcName) {
 | |
|         var steps = filenameToSteps(filename);
 | |
|         var link = this.getLink(steps);
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, funcName, filename);
 | |
|         return link;
 | |
|     };
 | |
|     // Just like `getLink`, but also dereference/resolves symbolic links.
 | |
|     Volume.prototype.getResolvedLink = function (filenameOrSteps) {
 | |
|         var steps = typeof filenameOrSteps === 'string' ? filenameToSteps(filenameOrSteps) : filenameOrSteps;
 | |
|         var link = this.root;
 | |
|         var i = 0;
 | |
|         while (i < steps.length) {
 | |
|             var step = steps[i];
 | |
|             link = link.getChild(step);
 | |
|             if (!link)
 | |
|                 return null;
 | |
|             var node = link.getNode();
 | |
|             if (node.isSymlink()) {
 | |
|                 steps = node.symlink.concat(steps.slice(i + 1));
 | |
|                 link = this.root;
 | |
|                 i = 0;
 | |
|                 continue;
 | |
|             }
 | |
|             i++;
 | |
|         }
 | |
|         return link;
 | |
|     };
 | |
|     // Just like `getLinkOrThrow`, but also dereference/resolves symbolic links.
 | |
|     Volume.prototype.getResolvedLinkOrThrow = function (filename, funcName) {
 | |
|         var link = this.getResolvedLink(filename);
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, funcName, filename);
 | |
|         return link;
 | |
|     };
 | |
|     Volume.prototype.resolveSymlinks = function (link) {
 | |
|         // let node: Node = link.getNode();
 | |
|         // while(link && node.isSymlink()) {
 | |
|         //     link = this.getLink(node.symlink);
 | |
|         //     if(!link) return null;
 | |
|         //     node = link.getNode();
 | |
|         // }
 | |
|         // return link;
 | |
|         return this.getResolvedLink(link.steps.slice(1));
 | |
|     };
 | |
|     // Just like `getLinkOrThrow`, but also verifies that the link is a directory.
 | |
|     Volume.prototype.getLinkAsDirOrThrow = function (filename, funcName) {
 | |
|         var link = this.getLinkOrThrow(filename, funcName);
 | |
|         if (!link.getNode().isDirectory())
 | |
|             throw createError(ENOTDIR, funcName, filename);
 | |
|         return link;
 | |
|     };
 | |
|     // Get the immediate parent directory of the link.
 | |
|     Volume.prototype.getLinkParent = function (steps) {
 | |
|         return this.root.walk(steps, steps.length - 1);
 | |
|     };
 | |
|     Volume.prototype.getLinkParentAsDirOrThrow = function (filenameOrSteps, funcName) {
 | |
|         var steps = filenameOrSteps instanceof Array ? filenameOrSteps : filenameToSteps(filenameOrSteps);
 | |
|         var link = this.getLinkParent(steps);
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, funcName, sep + steps.join(sep));
 | |
|         if (!link.getNode().isDirectory())
 | |
|             throw createError(ENOTDIR, funcName, sep + steps.join(sep));
 | |
|         return link;
 | |
|     };
 | |
|     Volume.prototype.getFileByFd = function (fd) {
 | |
|         return this.fds[String(fd)];
 | |
|     };
 | |
|     Volume.prototype.getFileByFdOrThrow = function (fd, funcName) {
 | |
|         if (!isFd(fd))
 | |
|             throw TypeError(ERRSTR.FD);
 | |
|         var file = this.getFileByFd(fd);
 | |
|         if (!file)
 | |
|             throw createError(EBADF, funcName);
 | |
|         return file;
 | |
|     };
 | |
|     /**
 | |
|      * @todo This is not used anymore. Remove.
 | |
|      */
 | |
|     /*
 | |
|     private getNodeByIdOrCreate(id: TFileId, flags: number, perm: number): Node {
 | |
|       if (typeof id === 'number') {
 | |
|         const file = this.getFileByFd(id);
 | |
|         if (!file) throw Error('File nto found');
 | |
|         return file.node;
 | |
|       } else {
 | |
|         const steps = pathToSteps(id as PathLike);
 | |
|         let link = this.getLink(steps);
 | |
|         if (link) return link.getNode();
 | |
|   
 | |
|         // Try creating a node if not found.
 | |
|         if (flags & O_CREAT) {
 | |
|           const dirLink = this.getLinkParent(steps);
 | |
|           if (dirLink) {
 | |
|             const name = steps[steps.length - 1];
 | |
|             link = this.createLink(dirLink, name, false, perm);
 | |
|             return link.getNode();
 | |
|           }
 | |
|         }
 | |
|   
 | |
|         throw createError(ENOENT, 'getNodeByIdOrCreate', pathToFilename(id));
 | |
|       }
 | |
|     }
 | |
|     */
 | |
|     Volume.prototype.wrapAsync = function (method, args, callback) {
 | |
|         var _this = this;
 | |
|         validateCallback(callback);
 | |
|         (0, setImmediate_1.default)(function () {
 | |
|             var result;
 | |
|             try {
 | |
|                 result = method.apply(_this, args);
 | |
|             }
 | |
|             catch (err) {
 | |
|                 callback(err);
 | |
|                 return;
 | |
|             }
 | |
|             callback(null, result);
 | |
|         });
 | |
|     };
 | |
|     Volume.prototype._toJSON = function (link, json, path) {
 | |
|         var _a;
 | |
|         if (link === void 0) { link = this.root; }
 | |
|         if (json === void 0) { json = {}; }
 | |
|         var isEmpty = true;
 | |
|         var children = link.children;
 | |
|         if (link.getNode().isFile()) {
 | |
|             children = (_a = {}, _a[link.getName()] = link.parent.getChild(link.getName()), _a);
 | |
|             link = link.parent;
 | |
|         }
 | |
|         for (var name_1 in children) {
 | |
|             if (name_1 === '.' || name_1 === '..') {
 | |
|                 continue;
 | |
|             }
 | |
|             isEmpty = false;
 | |
|             var child = link.getChild(name_1);
 | |
|             if (!child) {
 | |
|                 throw new Error('_toJSON: unexpected undefined');
 | |
|             }
 | |
|             var node = child.getNode();
 | |
|             if (node.isFile()) {
 | |
|                 var filename = child.getPath();
 | |
|                 if (path)
 | |
|                     filename = relative(path, filename);
 | |
|                 json[filename] = node.getString();
 | |
|             }
 | |
|             else if (node.isDirectory()) {
 | |
|                 this._toJSON(child, json, path);
 | |
|             }
 | |
|         }
 | |
|         var dirPath = link.getPath();
 | |
|         if (path)
 | |
|             dirPath = relative(path, dirPath);
 | |
|         if (dirPath && isEmpty) {
 | |
|             json[dirPath] = null;
 | |
|         }
 | |
|         return json;
 | |
|     };
 | |
|     Volume.prototype.toJSON = function (paths, json, isRelative) {
 | |
|         if (json === void 0) { json = {}; }
 | |
|         if (isRelative === void 0) { isRelative = false; }
 | |
|         var links = [];
 | |
|         if (paths) {
 | |
|             if (!(paths instanceof Array))
 | |
|                 paths = [paths];
 | |
|             for (var _i = 0, paths_1 = paths; _i < paths_1.length; _i++) {
 | |
|                 var path = paths_1[_i];
 | |
|                 var filename = pathToFilename(path);
 | |
|                 var link = this.getResolvedLink(filename);
 | |
|                 if (!link)
 | |
|                     continue;
 | |
|                 links.push(link);
 | |
|             }
 | |
|         }
 | |
|         else {
 | |
|             links.push(this.root);
 | |
|         }
 | |
|         if (!links.length)
 | |
|             return json;
 | |
|         for (var _a = 0, links_1 = links; _a < links_1.length; _a++) {
 | |
|             var link = links_1[_a];
 | |
|             this._toJSON(link, json, isRelative ? link.getPath() : '');
 | |
|         }
 | |
|         return json;
 | |
|     };
 | |
|     Volume.prototype.fromJSON = function (json, cwd) {
 | |
|         if (cwd === void 0) { cwd = process_1.default.cwd(); }
 | |
|         for (var filename in json) {
 | |
|             var data = json[filename];
 | |
|             filename = resolve(filename, cwd);
 | |
|             if (typeof data === 'string') {
 | |
|                 var dir = dirname(filename);
 | |
|                 this.mkdirpBase(dir, 511 /* MODE.DIR */);
 | |
|                 this.writeFileSync(filename, data);
 | |
|             }
 | |
|             else {
 | |
|                 this.mkdirpBase(filename, 511 /* MODE.DIR */);
 | |
|             }
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.fromNestedJSON = function (json, cwd) {
 | |
|         this.fromJSON(flattenJSON(json), cwd);
 | |
|     };
 | |
|     Volume.prototype.reset = function () {
 | |
|         this.ino = 0;
 | |
|         this.inodes = {};
 | |
|         this.releasedInos = [];
 | |
|         this.fds = {};
 | |
|         this.releasedFds = [];
 | |
|         this.openFiles = 0;
 | |
|         this.root = this.createLink();
 | |
|         this.root.setNode(this.createNode(true));
 | |
|     };
 | |
|     // Legacy interface
 | |
|     Volume.prototype.mountSync = function (mountpoint, json) {
 | |
|         this.fromJSON(json, mountpoint);
 | |
|     };
 | |
|     Volume.prototype.openLink = function (link, flagsNum, resolveSymlinks) {
 | |
|         if (resolveSymlinks === void 0) { resolveSymlinks = true; }
 | |
|         if (this.openFiles >= this.maxFiles) {
 | |
|             // Too many open files.
 | |
|             throw createError(EMFILE, 'open', link.getPath());
 | |
|         }
 | |
|         // Resolve symlinks.
 | |
|         var realLink = link;
 | |
|         if (resolveSymlinks)
 | |
|             realLink = this.resolveSymlinks(link);
 | |
|         if (!realLink)
 | |
|             throw createError(ENOENT, 'open', link.getPath());
 | |
|         var node = realLink.getNode();
 | |
|         // Check whether node is a directory
 | |
|         if (node.isDirectory()) {
 | |
|             if ((flagsNum & (O_RDONLY | O_RDWR | O_WRONLY)) !== O_RDONLY)
 | |
|                 throw createError(EISDIR, 'open', link.getPath());
 | |
|         }
 | |
|         else {
 | |
|             if (flagsNum & O_DIRECTORY)
 | |
|                 throw createError(ENOTDIR, 'open', link.getPath());
 | |
|         }
 | |
|         // Check node permissions
 | |
|         if (!(flagsNum & O_WRONLY)) {
 | |
|             if (!node.canRead()) {
 | |
|                 throw createError(EACCES, 'open', link.getPath());
 | |
|             }
 | |
|         }
 | |
|         if (flagsNum & O_RDWR) {
 | |
|         }
 | |
|         var file = new this.props.File(link, node, flagsNum, this.newFdNumber());
 | |
|         this.fds[file.fd] = file;
 | |
|         this.openFiles++;
 | |
|         if (flagsNum & O_TRUNC)
 | |
|             file.truncate();
 | |
|         return file;
 | |
|     };
 | |
|     Volume.prototype.openFile = function (filename, flagsNum, modeNum, resolveSymlinks) {
 | |
|         if (resolveSymlinks === void 0) { resolveSymlinks = true; }
 | |
|         var steps = filenameToSteps(filename);
 | |
|         var link = resolveSymlinks ? this.getResolvedLink(steps) : this.getLink(steps);
 | |
|         if (link && flagsNum & O_EXCL)
 | |
|             throw createError(EEXIST, 'open', filename);
 | |
|         // Try creating a new file, if it does not exist.
 | |
|         if (!link && flagsNum & O_CREAT) {
 | |
|             // const dirLink: Link = this.getLinkParent(steps);
 | |
|             var dirLink = this.getResolvedLink(steps.slice(0, steps.length - 1));
 | |
|             // if(!dirLink) throw createError(ENOENT, 'open', filename);
 | |
|             if (!dirLink)
 | |
|                 throw createError(ENOENT, 'open', sep + steps.join(sep));
 | |
|             if (flagsNum & O_CREAT && typeof modeNum === 'number') {
 | |
|                 link = this.createLink(dirLink, steps[steps.length - 1], false, modeNum);
 | |
|             }
 | |
|         }
 | |
|         if (link)
 | |
|             return this.openLink(link, flagsNum, resolveSymlinks);
 | |
|         throw createError(ENOENT, 'open', filename);
 | |
|     };
 | |
|     Volume.prototype.openBase = function (filename, flagsNum, modeNum, resolveSymlinks) {
 | |
|         if (resolveSymlinks === void 0) { resolveSymlinks = true; }
 | |
|         var file = this.openFile(filename, flagsNum, modeNum, resolveSymlinks);
 | |
|         if (!file)
 | |
|             throw createError(ENOENT, 'open', filename);
 | |
|         return file.fd;
 | |
|     };
 | |
|     Volume.prototype.openSync = function (path, flags, mode) {
 | |
|         if (mode === void 0) { mode = 438 /* MODE.DEFAULT */; }
 | |
|         // Validate (1) mode; (2) path; (3) flags - in that order.
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var fileName = pathToFilename(path);
 | |
|         var flagsNum = flagsToNumber(flags);
 | |
|         return this.openBase(fileName, flagsNum, modeNum);
 | |
|     };
 | |
|     Volume.prototype.open = function (path, flags, a, b) {
 | |
|         var mode = a;
 | |
|         var callback = b;
 | |
|         if (typeof a === 'function') {
 | |
|             mode = 438 /* MODE.DEFAULT */;
 | |
|             callback = a;
 | |
|         }
 | |
|         mode = mode || 438 /* MODE.DEFAULT */;
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var fileName = pathToFilename(path);
 | |
|         var flagsNum = flagsToNumber(flags);
 | |
|         this.wrapAsync(this.openBase, [fileName, flagsNum, modeNum], callback);
 | |
|     };
 | |
|     Volume.prototype.closeFile = function (file) {
 | |
|         if (!this.fds[file.fd])
 | |
|             return;
 | |
|         this.openFiles--;
 | |
|         delete this.fds[file.fd];
 | |
|         this.releasedFds.push(file.fd);
 | |
|     };
 | |
|     Volume.prototype.closeSync = function (fd) {
 | |
|         validateFd(fd);
 | |
|         var file = this.getFileByFdOrThrow(fd, 'close');
 | |
|         this.closeFile(file);
 | |
|     };
 | |
|     Volume.prototype.close = function (fd, callback) {
 | |
|         validateFd(fd);
 | |
|         this.wrapAsync(this.closeSync, [fd], callback);
 | |
|     };
 | |
|     Volume.prototype.openFileOrGetById = function (id, flagsNum, modeNum) {
 | |
|         if (typeof id === 'number') {
 | |
|             var file = this.fds[id];
 | |
|             if (!file)
 | |
|                 throw createError(ENOENT);
 | |
|             return file;
 | |
|         }
 | |
|         else {
 | |
|             return this.openFile(pathToFilename(id), flagsNum, modeNum);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.readBase = function (fd, buffer, offset, length, position) {
 | |
|         var file = this.getFileByFdOrThrow(fd);
 | |
|         return file.read(buffer, Number(offset), Number(length), position);
 | |
|     };
 | |
|     Volume.prototype.readSync = function (fd, buffer, offset, length, position) {
 | |
|         validateFd(fd);
 | |
|         return this.readBase(fd, buffer, offset, length, position);
 | |
|     };
 | |
|     Volume.prototype.read = function (fd, buffer, offset, length, position, callback) {
 | |
|         var _this = this;
 | |
|         validateCallback(callback);
 | |
|         // This `if` branch is from Node.js
 | |
|         if (length === 0) {
 | |
|             return process_1.default.nextTick(function () {
 | |
|                 if (callback)
 | |
|                     callback(null, 0, buffer);
 | |
|             });
 | |
|         }
 | |
|         (0, setImmediate_1.default)(function () {
 | |
|             try {
 | |
|                 var bytes = _this.readBase(fd, buffer, offset, length, position);
 | |
|                 callback(null, bytes, buffer);
 | |
|             }
 | |
|             catch (err) {
 | |
|                 callback(err);
 | |
|             }
 | |
|         });
 | |
|     };
 | |
|     Volume.prototype.readFileBase = function (id, flagsNum, encoding) {
 | |
|         var result;
 | |
|         var isUserFd = typeof id === 'number';
 | |
|         var userOwnsFd = isUserFd && isFd(id);
 | |
|         var fd;
 | |
|         if (userOwnsFd)
 | |
|             fd = id;
 | |
|         else {
 | |
|             var filename = pathToFilename(id);
 | |
|             var steps = filenameToSteps(filename);
 | |
|             var link = this.getResolvedLink(steps);
 | |
|             if (link) {
 | |
|                 var node = link.getNode();
 | |
|                 if (node.isDirectory())
 | |
|                     throw createError(EISDIR, 'open', link.getPath());
 | |
|             }
 | |
|             fd = this.openSync(id, flagsNum);
 | |
|         }
 | |
|         try {
 | |
|             result = bufferToEncoding(this.getFileByFdOrThrow(fd).getBuffer(), encoding);
 | |
|         }
 | |
|         finally {
 | |
|             if (!userOwnsFd) {
 | |
|                 this.closeSync(fd);
 | |
|             }
 | |
|         }
 | |
|         return result;
 | |
|     };
 | |
|     Volume.prototype.readFileSync = function (file, options) {
 | |
|         var opts = getReadFileOptions(options);
 | |
|         var flagsNum = flagsToNumber(opts.flag);
 | |
|         return this.readFileBase(file, flagsNum, opts.encoding);
 | |
|     };
 | |
|     Volume.prototype.readFile = function (id, a, b) {
 | |
|         var _a = optsAndCbGenerator(getReadFileOptions)(a, b), opts = _a[0], callback = _a[1];
 | |
|         var flagsNum = flagsToNumber(opts.flag);
 | |
|         this.wrapAsync(this.readFileBase, [id, flagsNum, opts.encoding], callback);
 | |
|     };
 | |
|     Volume.prototype.writeBase = function (fd, buf, offset, length, position) {
 | |
|         var file = this.getFileByFdOrThrow(fd, 'write');
 | |
|         return file.write(buf, offset, length, position);
 | |
|     };
 | |
|     Volume.prototype.writeSync = function (fd, a, b, c, d) {
 | |
|         validateFd(fd);
 | |
|         var encoding;
 | |
|         var offset;
 | |
|         var length;
 | |
|         var position;
 | |
|         var isBuffer = typeof a !== 'string';
 | |
|         if (isBuffer) {
 | |
|             offset = (b || 0) | 0;
 | |
|             length = c;
 | |
|             position = d;
 | |
|         }
 | |
|         else {
 | |
|             position = b;
 | |
|             encoding = c;
 | |
|         }
 | |
|         var buf = dataToBuffer(a, encoding);
 | |
|         if (isBuffer) {
 | |
|             if (typeof length === 'undefined') {
 | |
|                 length = buf.length;
 | |
|             }
 | |
|         }
 | |
|         else {
 | |
|             offset = 0;
 | |
|             length = buf.length;
 | |
|         }
 | |
|         return this.writeBase(fd, buf, offset, length, position);
 | |
|     };
 | |
|     Volume.prototype.write = function (fd, a, b, c, d, e) {
 | |
|         var _this = this;
 | |
|         validateFd(fd);
 | |
|         var offset;
 | |
|         var length;
 | |
|         var position;
 | |
|         var encoding;
 | |
|         var callback;
 | |
|         var tipa = typeof a;
 | |
|         var tipb = typeof b;
 | |
|         var tipc = typeof c;
 | |
|         var tipd = typeof d;
 | |
|         if (tipa !== 'string') {
 | |
|             if (tipb === 'function') {
 | |
|                 callback = b;
 | |
|             }
 | |
|             else if (tipc === 'function') {
 | |
|                 offset = b | 0;
 | |
|                 callback = c;
 | |
|             }
 | |
|             else if (tipd === 'function') {
 | |
|                 offset = b | 0;
 | |
|                 length = c;
 | |
|                 callback = d;
 | |
|             }
 | |
|             else {
 | |
|                 offset = b | 0;
 | |
|                 length = c;
 | |
|                 position = d;
 | |
|                 callback = e;
 | |
|             }
 | |
|         }
 | |
|         else {
 | |
|             if (tipb === 'function') {
 | |
|                 callback = b;
 | |
|             }
 | |
|             else if (tipc === 'function') {
 | |
|                 position = b;
 | |
|                 callback = c;
 | |
|             }
 | |
|             else if (tipd === 'function') {
 | |
|                 position = b;
 | |
|                 encoding = c;
 | |
|                 callback = d;
 | |
|             }
 | |
|         }
 | |
|         var buf = dataToBuffer(a, encoding);
 | |
|         if (tipa !== 'string') {
 | |
|             if (typeof length === 'undefined')
 | |
|                 length = buf.length;
 | |
|         }
 | |
|         else {
 | |
|             offset = 0;
 | |
|             length = buf.length;
 | |
|         }
 | |
|         var cb = validateCallback(callback);
 | |
|         (0, setImmediate_1.default)(function () {
 | |
|             try {
 | |
|                 var bytes = _this.writeBase(fd, buf, offset, length, position);
 | |
|                 if (tipa !== 'string') {
 | |
|                     cb(null, bytes, buf);
 | |
|                 }
 | |
|                 else {
 | |
|                     cb(null, bytes, a);
 | |
|                 }
 | |
|             }
 | |
|             catch (err) {
 | |
|                 cb(err);
 | |
|             }
 | |
|         });
 | |
|     };
 | |
|     Volume.prototype.writeFileBase = function (id, buf, flagsNum, modeNum) {
 | |
|         // console.log('writeFileBase', id, buf, flagsNum, modeNum);
 | |
|         // const node = this.getNodeByIdOrCreate(id, flagsNum, modeNum);
 | |
|         // node.setBuffer(buf);
 | |
|         var isUserFd = typeof id === 'number';
 | |
|         var fd;
 | |
|         if (isUserFd)
 | |
|             fd = id;
 | |
|         else {
 | |
|             fd = this.openBase(pathToFilename(id), flagsNum, modeNum);
 | |
|             // fd = this.openSync(id as PathLike, flagsNum, modeNum);
 | |
|         }
 | |
|         var offset = 0;
 | |
|         var length = buf.length;
 | |
|         var position = flagsNum & O_APPEND ? undefined : 0;
 | |
|         try {
 | |
|             while (length > 0) {
 | |
|                 var written = this.writeSync(fd, buf, offset, length, position);
 | |
|                 offset += written;
 | |
|                 length -= written;
 | |
|                 if (position !== undefined)
 | |
|                     position += written;
 | |
|             }
 | |
|         }
 | |
|         finally {
 | |
|             if (!isUserFd)
 | |
|                 this.closeSync(fd);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.writeFileSync = function (id, data, options) {
 | |
|         var opts = getWriteFileOptions(options);
 | |
|         var flagsNum = flagsToNumber(opts.flag);
 | |
|         var modeNum = modeToNumber(opts.mode);
 | |
|         var buf = dataToBuffer(data, opts.encoding);
 | |
|         this.writeFileBase(id, buf, flagsNum, modeNum);
 | |
|     };
 | |
|     Volume.prototype.writeFile = function (id, data, a, b) {
 | |
|         var options = a;
 | |
|         var callback = b;
 | |
|         if (typeof a === 'function') {
 | |
|             options = writeFileDefaults;
 | |
|             callback = a;
 | |
|         }
 | |
|         var cb = validateCallback(callback);
 | |
|         var opts = getWriteFileOptions(options);
 | |
|         var flagsNum = flagsToNumber(opts.flag);
 | |
|         var modeNum = modeToNumber(opts.mode);
 | |
|         var buf = dataToBuffer(data, opts.encoding);
 | |
|         this.wrapAsync(this.writeFileBase, [id, buf, flagsNum, modeNum], cb);
 | |
|     };
 | |
|     Volume.prototype.linkBase = function (filename1, filename2) {
 | |
|         var steps1 = filenameToSteps(filename1);
 | |
|         var link1 = this.getLink(steps1);
 | |
|         if (!link1)
 | |
|             throw createError(ENOENT, 'link', filename1, filename2);
 | |
|         var steps2 = filenameToSteps(filename2);
 | |
|         // Check new link directory exists.
 | |
|         var dir2 = this.getLinkParent(steps2);
 | |
|         if (!dir2)
 | |
|             throw createError(ENOENT, 'link', filename1, filename2);
 | |
|         var name = steps2[steps2.length - 1];
 | |
|         // Check if new file already exists.
 | |
|         if (dir2.getChild(name))
 | |
|             throw createError(EEXIST, 'link', filename1, filename2);
 | |
|         var node = link1.getNode();
 | |
|         node.nlink++;
 | |
|         dir2.createChild(name, node);
 | |
|     };
 | |
|     Volume.prototype.copyFileBase = function (src, dest, flags) {
 | |
|         var buf = this.readFileSync(src);
 | |
|         if (flags & COPYFILE_EXCL) {
 | |
|             if (this.existsSync(dest)) {
 | |
|                 throw createError(EEXIST, 'copyFile', src, dest);
 | |
|             }
 | |
|         }
 | |
|         if (flags & COPYFILE_FICLONE_FORCE) {
 | |
|             throw createError(ENOSYS, 'copyFile', src, dest);
 | |
|         }
 | |
|         this.writeFileBase(dest, buf, FLAGS.w, 438 /* MODE.DEFAULT */);
 | |
|     };
 | |
|     Volume.prototype.copyFileSync = function (src, dest, flags) {
 | |
|         var srcFilename = pathToFilename(src);
 | |
|         var destFilename = pathToFilename(dest);
 | |
|         return this.copyFileBase(srcFilename, destFilename, (flags || 0) | 0);
 | |
|     };
 | |
|     Volume.prototype.copyFile = function (src, dest, a, b) {
 | |
|         var srcFilename = pathToFilename(src);
 | |
|         var destFilename = pathToFilename(dest);
 | |
|         var flags;
 | |
|         var callback;
 | |
|         if (typeof a === 'function') {
 | |
|             flags = 0;
 | |
|             callback = a;
 | |
|         }
 | |
|         else {
 | |
|             flags = a;
 | |
|             callback = b;
 | |
|         }
 | |
|         validateCallback(callback);
 | |
|         this.wrapAsync(this.copyFileBase, [srcFilename, destFilename, flags], callback);
 | |
|     };
 | |
|     Volume.prototype.linkSync = function (existingPath, newPath) {
 | |
|         var existingPathFilename = pathToFilename(existingPath);
 | |
|         var newPathFilename = pathToFilename(newPath);
 | |
|         this.linkBase(existingPathFilename, newPathFilename);
 | |
|     };
 | |
|     Volume.prototype.link = function (existingPath, newPath, callback) {
 | |
|         var existingPathFilename = pathToFilename(existingPath);
 | |
|         var newPathFilename = pathToFilename(newPath);
 | |
|         this.wrapAsync(this.linkBase, [existingPathFilename, newPathFilename], callback);
 | |
|     };
 | |
|     Volume.prototype.unlinkBase = function (filename) {
 | |
|         var steps = filenameToSteps(filename);
 | |
|         var link = this.getLink(steps);
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, 'unlink', filename);
 | |
|         // TODO: Check if it is file, dir, other...
 | |
|         if (link.length)
 | |
|             throw Error('Dir not empty...');
 | |
|         this.deleteLink(link);
 | |
|         var node = link.getNode();
 | |
|         node.nlink--;
 | |
|         // When all hard links to i-node are deleted, remove the i-node, too.
 | |
|         if (node.nlink <= 0) {
 | |
|             this.deleteNode(node);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.unlinkSync = function (path) {
 | |
|         var filename = pathToFilename(path);
 | |
|         this.unlinkBase(filename);
 | |
|     };
 | |
|     Volume.prototype.unlink = function (path, callback) {
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.unlinkBase, [filename], callback);
 | |
|     };
 | |
|     Volume.prototype.symlinkBase = function (targetFilename, pathFilename) {
 | |
|         var pathSteps = filenameToSteps(pathFilename);
 | |
|         // Check if directory exists, where we about to create a symlink.
 | |
|         var dirLink = this.getLinkParent(pathSteps);
 | |
|         if (!dirLink)
 | |
|             throw createError(ENOENT, 'symlink', targetFilename, pathFilename);
 | |
|         var name = pathSteps[pathSteps.length - 1];
 | |
|         // Check if new file already exists.
 | |
|         if (dirLink.getChild(name))
 | |
|             throw createError(EEXIST, 'symlink', targetFilename, pathFilename);
 | |
|         // Create symlink.
 | |
|         var symlink = dirLink.createChild(name);
 | |
|         symlink.getNode().makeSymlink(filenameToSteps(targetFilename));
 | |
|         return symlink;
 | |
|     };
 | |
|     // `type` argument works only on Windows.
 | |
|     Volume.prototype.symlinkSync = function (target, path, type) {
 | |
|         var targetFilename = pathToFilename(target);
 | |
|         var pathFilename = pathToFilename(path);
 | |
|         this.symlinkBase(targetFilename, pathFilename);
 | |
|     };
 | |
|     Volume.prototype.symlink = function (target, path, a, b) {
 | |
|         var callback = validateCallback(typeof a === 'function' ? a : b);
 | |
|         var targetFilename = pathToFilename(target);
 | |
|         var pathFilename = pathToFilename(path);
 | |
|         this.wrapAsync(this.symlinkBase, [targetFilename, pathFilename], callback);
 | |
|     };
 | |
|     Volume.prototype.realpathBase = function (filename, encoding) {
 | |
|         var steps = filenameToSteps(filename);
 | |
|         var realLink = this.getResolvedLink(steps);
 | |
|         if (!realLink)
 | |
|             throw createError(ENOENT, 'realpath', filename);
 | |
|         return (0, encoding_1.strToEncoding)(realLink.getPath() || '/', encoding);
 | |
|     };
 | |
|     Volume.prototype.realpathSync = function (path, options) {
 | |
|         return this.realpathBase(pathToFilename(path), getRealpathOptions(options).encoding);
 | |
|     };
 | |
|     Volume.prototype.realpath = function (path, a, b) {
 | |
|         var _a = getRealpathOptsAndCb(a, b), opts = _a[0], callback = _a[1];
 | |
|         var pathFilename = pathToFilename(path);
 | |
|         this.wrapAsync(this.realpathBase, [pathFilename, opts.encoding], callback);
 | |
|     };
 | |
|     Volume.prototype.lstatBase = function (filename, bigint, throwIfNoEntry) {
 | |
|         if (bigint === void 0) { bigint = false; }
 | |
|         if (throwIfNoEntry === void 0) { throwIfNoEntry = false; }
 | |
|         var link = this.getLink(filenameToSteps(filename));
 | |
|         if (link) {
 | |
|             return Stats_1.default.build(link.getNode(), bigint);
 | |
|         }
 | |
|         else if (!throwIfNoEntry) {
 | |
|             return undefined;
 | |
|         }
 | |
|         else {
 | |
|             throw createError(ENOENT, 'lstat', filename);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.lstatSync = function (path, options) {
 | |
|         var _a = getStatOptions(options), _b = _a.throwIfNoEntry, throwIfNoEntry = _b === void 0 ? true : _b, _c = _a.bigint, bigint = _c === void 0 ? false : _c;
 | |
|         return this.lstatBase(pathToFilename(path), bigint, throwIfNoEntry);
 | |
|     };
 | |
|     Volume.prototype.lstat = function (path, a, b) {
 | |
|         var _a = getStatOptsAndCb(a, b), _b = _a[0], _c = _b.throwIfNoEntry, throwIfNoEntry = _c === void 0 ? true : _c, _d = _b.bigint, bigint = _d === void 0 ? false : _d, callback = _a[1];
 | |
|         this.wrapAsync(this.lstatBase, [pathToFilename(path), bigint, throwIfNoEntry], callback);
 | |
|     };
 | |
|     Volume.prototype.statBase = function (filename, bigint, throwIfNoEntry) {
 | |
|         if (bigint === void 0) { bigint = false; }
 | |
|         if (throwIfNoEntry === void 0) { throwIfNoEntry = true; }
 | |
|         var link = this.getResolvedLink(filenameToSteps(filename));
 | |
|         if (link) {
 | |
|             return Stats_1.default.build(link.getNode(), bigint);
 | |
|         }
 | |
|         else if (!throwIfNoEntry) {
 | |
|             return undefined;
 | |
|         }
 | |
|         else {
 | |
|             throw createError(ENOENT, 'stat', filename);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.statSync = function (path, options) {
 | |
|         var _a = getStatOptions(options), _b = _a.bigint, bigint = _b === void 0 ? true : _b, _c = _a.throwIfNoEntry, throwIfNoEntry = _c === void 0 ? true : _c;
 | |
|         return this.statBase(pathToFilename(path), bigint, throwIfNoEntry);
 | |
|     };
 | |
|     Volume.prototype.stat = function (path, a, b) {
 | |
|         var _a = getStatOptsAndCb(a, b), _b = _a[0], _c = _b.bigint, bigint = _c === void 0 ? false : _c, _d = _b.throwIfNoEntry, throwIfNoEntry = _d === void 0 ? true : _d, callback = _a[1];
 | |
|         this.wrapAsync(this.statBase, [pathToFilename(path), bigint, throwIfNoEntry], callback);
 | |
|     };
 | |
|     Volume.prototype.fstatBase = function (fd, bigint) {
 | |
|         if (bigint === void 0) { bigint = false; }
 | |
|         var file = this.getFileByFd(fd);
 | |
|         if (!file)
 | |
|             throw createError(EBADF, 'fstat');
 | |
|         return Stats_1.default.build(file.node, bigint);
 | |
|     };
 | |
|     Volume.prototype.fstatSync = function (fd, options) {
 | |
|         return this.fstatBase(fd, getStatOptions(options).bigint);
 | |
|     };
 | |
|     Volume.prototype.fstat = function (fd, a, b) {
 | |
|         var _a = getStatOptsAndCb(a, b), opts = _a[0], callback = _a[1];
 | |
|         this.wrapAsync(this.fstatBase, [fd, opts.bigint], callback);
 | |
|     };
 | |
|     Volume.prototype.renameBase = function (oldPathFilename, newPathFilename) {
 | |
|         var link = this.getLink(filenameToSteps(oldPathFilename));
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, 'rename', oldPathFilename, newPathFilename);
 | |
|         // TODO: Check if it is directory, if non-empty, we cannot move it, right?
 | |
|         var newPathSteps = filenameToSteps(newPathFilename);
 | |
|         // Check directory exists for the new location.
 | |
|         var newPathDirLink = this.getLinkParent(newPathSteps);
 | |
|         if (!newPathDirLink)
 | |
|             throw createError(ENOENT, 'rename', oldPathFilename, newPathFilename);
 | |
|         // TODO: Also treat cases with directories and symbolic links.
 | |
|         // TODO: See: http://man7.org/linux/man-pages/man2/rename.2.html
 | |
|         // Remove hard link from old folder.
 | |
|         var oldLinkParent = link.parent;
 | |
|         if (oldLinkParent) {
 | |
|             oldLinkParent.deleteChild(link);
 | |
|         }
 | |
|         // Rename should overwrite the new path, if that exists.
 | |
|         var name = newPathSteps[newPathSteps.length - 1];
 | |
|         link.name = name;
 | |
|         link.steps = __spreadArray(__spreadArray([], newPathDirLink.steps, true), [name], false);
 | |
|         newPathDirLink.setChild(link.getName(), link);
 | |
|     };
 | |
|     Volume.prototype.renameSync = function (oldPath, newPath) {
 | |
|         var oldPathFilename = pathToFilename(oldPath);
 | |
|         var newPathFilename = pathToFilename(newPath);
 | |
|         this.renameBase(oldPathFilename, newPathFilename);
 | |
|     };
 | |
|     Volume.prototype.rename = function (oldPath, newPath, callback) {
 | |
|         var oldPathFilename = pathToFilename(oldPath);
 | |
|         var newPathFilename = pathToFilename(newPath);
 | |
|         this.wrapAsync(this.renameBase, [oldPathFilename, newPathFilename], callback);
 | |
|     };
 | |
|     Volume.prototype.existsBase = function (filename) {
 | |
|         return !!this.statBase(filename);
 | |
|     };
 | |
|     Volume.prototype.existsSync = function (path) {
 | |
|         try {
 | |
|             return this.existsBase(pathToFilename(path));
 | |
|         }
 | |
|         catch (err) {
 | |
|             return false;
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.exists = function (path, callback) {
 | |
|         var _this = this;
 | |
|         var filename = pathToFilename(path);
 | |
|         if (typeof callback !== 'function')
 | |
|             throw Error(ERRSTR.CB);
 | |
|         (0, setImmediate_1.default)(function () {
 | |
|             try {
 | |
|                 callback(_this.existsBase(filename));
 | |
|             }
 | |
|             catch (err) {
 | |
|                 callback(false);
 | |
|             }
 | |
|         });
 | |
|     };
 | |
|     Volume.prototype.accessBase = function (filename, mode) {
 | |
|         var link = this.getLinkOrThrow(filename, 'access');
 | |
|         // TODO: Verify permissions
 | |
|     };
 | |
|     Volume.prototype.accessSync = function (path, mode) {
 | |
|         if (mode === void 0) { mode = F_OK; }
 | |
|         var filename = pathToFilename(path);
 | |
|         mode = mode | 0;
 | |
|         this.accessBase(filename, mode);
 | |
|     };
 | |
|     Volume.prototype.access = function (path, a, b) {
 | |
|         var mode = F_OK;
 | |
|         var callback;
 | |
|         if (typeof a !== 'function') {
 | |
|             mode = a | 0; // cast to number
 | |
|             callback = validateCallback(b);
 | |
|         }
 | |
|         else {
 | |
|             callback = a;
 | |
|         }
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.accessBase, [filename, mode], callback);
 | |
|     };
 | |
|     Volume.prototype.appendFileSync = function (id, data, options) {
 | |
|         if (options === void 0) { options = appendFileDefaults; }
 | |
|         var opts = getAppendFileOpts(options);
 | |
|         // force append behavior when using a supplied file descriptor
 | |
|         if (!opts.flag || isFd(id))
 | |
|             opts.flag = 'a';
 | |
|         this.writeFileSync(id, data, opts);
 | |
|     };
 | |
|     Volume.prototype.appendFile = function (id, data, a, b) {
 | |
|         var _a = getAppendFileOptsAndCb(a, b), opts = _a[0], callback = _a[1];
 | |
|         // force append behavior when using a supplied file descriptor
 | |
|         if (!opts.flag || isFd(id))
 | |
|             opts.flag = 'a';
 | |
|         this.writeFile(id, data, opts, callback);
 | |
|     };
 | |
|     Volume.prototype.readdirBase = function (filename, options) {
 | |
|         var steps = filenameToSteps(filename);
 | |
|         var link = this.getResolvedLink(steps);
 | |
|         if (!link)
 | |
|             throw createError(ENOENT, 'readdir', filename);
 | |
|         var node = link.getNode();
 | |
|         if (!node.isDirectory())
 | |
|             throw createError(ENOTDIR, 'scandir', filename);
 | |
|         if (options.withFileTypes) {
 | |
|             var list_1 = [];
 | |
|             for (var name_2 in link.children) {
 | |
|                 var child = link.getChild(name_2);
 | |
|                 if (!child || name_2 === '.' || name_2 === '..') {
 | |
|                     continue;
 | |
|                 }
 | |
|                 list_1.push(Dirent_1.default.build(child, options.encoding));
 | |
|             }
 | |
|             if (!isWin && options.encoding !== 'buffer')
 | |
|                 list_1.sort(function (a, b) {
 | |
|                     if (a.name < b.name)
 | |
|                         return -1;
 | |
|                     if (a.name > b.name)
 | |
|                         return 1;
 | |
|                     return 0;
 | |
|                 });
 | |
|             return list_1;
 | |
|         }
 | |
|         var list = [];
 | |
|         for (var name_3 in link.children) {
 | |
|             if (name_3 === '.' || name_3 === '..') {
 | |
|                 continue;
 | |
|             }
 | |
|             list.push((0, encoding_1.strToEncoding)(name_3, options.encoding));
 | |
|         }
 | |
|         if (!isWin && options.encoding !== 'buffer')
 | |
|             list.sort();
 | |
|         return list;
 | |
|     };
 | |
|     Volume.prototype.readdirSync = function (path, options) {
 | |
|         var opts = getReaddirOptions(options);
 | |
|         var filename = pathToFilename(path);
 | |
|         return this.readdirBase(filename, opts);
 | |
|     };
 | |
|     Volume.prototype.readdir = function (path, a, b) {
 | |
|         var _a = getReaddirOptsAndCb(a, b), options = _a[0], callback = _a[1];
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.readdirBase, [filename, options], callback);
 | |
|     };
 | |
|     Volume.prototype.readlinkBase = function (filename, encoding) {
 | |
|         var link = this.getLinkOrThrow(filename, 'readlink');
 | |
|         var node = link.getNode();
 | |
|         if (!node.isSymlink())
 | |
|             throw createError(EINVAL, 'readlink', filename);
 | |
|         var str = sep + node.symlink.join(sep);
 | |
|         return (0, encoding_1.strToEncoding)(str, encoding);
 | |
|     };
 | |
|     Volume.prototype.readlinkSync = function (path, options) {
 | |
|         var opts = getDefaultOpts(options);
 | |
|         var filename = pathToFilename(path);
 | |
|         return this.readlinkBase(filename, opts.encoding);
 | |
|     };
 | |
|     Volume.prototype.readlink = function (path, a, b) {
 | |
|         var _a = getDefaultOptsAndCb(a, b), opts = _a[0], callback = _a[1];
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.readlinkBase, [filename, opts.encoding], callback);
 | |
|     };
 | |
|     Volume.prototype.fsyncBase = function (fd) {
 | |
|         this.getFileByFdOrThrow(fd, 'fsync');
 | |
|     };
 | |
|     Volume.prototype.fsyncSync = function (fd) {
 | |
|         this.fsyncBase(fd);
 | |
|     };
 | |
|     Volume.prototype.fsync = function (fd, callback) {
 | |
|         this.wrapAsync(this.fsyncBase, [fd], callback);
 | |
|     };
 | |
|     Volume.prototype.fdatasyncBase = function (fd) {
 | |
|         this.getFileByFdOrThrow(fd, 'fdatasync');
 | |
|     };
 | |
|     Volume.prototype.fdatasyncSync = function (fd) {
 | |
|         this.fdatasyncBase(fd);
 | |
|     };
 | |
|     Volume.prototype.fdatasync = function (fd, callback) {
 | |
|         this.wrapAsync(this.fdatasyncBase, [fd], callback);
 | |
|     };
 | |
|     Volume.prototype.ftruncateBase = function (fd, len) {
 | |
|         var file = this.getFileByFdOrThrow(fd, 'ftruncate');
 | |
|         file.truncate(len);
 | |
|     };
 | |
|     Volume.prototype.ftruncateSync = function (fd, len) {
 | |
|         this.ftruncateBase(fd, len);
 | |
|     };
 | |
|     Volume.prototype.ftruncate = function (fd, a, b) {
 | |
|         var len = typeof a === 'number' ? a : 0;
 | |
|         var callback = validateCallback(typeof a === 'number' ? b : a);
 | |
|         this.wrapAsync(this.ftruncateBase, [fd, len], callback);
 | |
|     };
 | |
|     Volume.prototype.truncateBase = function (path, len) {
 | |
|         var fd = this.openSync(path, 'r+');
 | |
|         try {
 | |
|             this.ftruncateSync(fd, len);
 | |
|         }
 | |
|         finally {
 | |
|             this.closeSync(fd);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.truncateSync = function (id, len) {
 | |
|         if (isFd(id))
 | |
|             return this.ftruncateSync(id, len);
 | |
|         this.truncateBase(id, len);
 | |
|     };
 | |
|     Volume.prototype.truncate = function (id, a, b) {
 | |
|         var len = typeof a === 'number' ? a : 0;
 | |
|         var callback = validateCallback(typeof a === 'number' ? b : a);
 | |
|         if (isFd(id))
 | |
|             return this.ftruncate(id, len, callback);
 | |
|         this.wrapAsync(this.truncateBase, [id, len], callback);
 | |
|     };
 | |
|     Volume.prototype.futimesBase = function (fd, atime, mtime) {
 | |
|         var file = this.getFileByFdOrThrow(fd, 'futimes');
 | |
|         var node = file.node;
 | |
|         node.atime = new Date(atime * 1000);
 | |
|         node.mtime = new Date(mtime * 1000);
 | |
|     };
 | |
|     Volume.prototype.futimesSync = function (fd, atime, mtime) {
 | |
|         this.futimesBase(fd, toUnixTimestamp(atime), toUnixTimestamp(mtime));
 | |
|     };
 | |
|     Volume.prototype.futimes = function (fd, atime, mtime, callback) {
 | |
|         this.wrapAsync(this.futimesBase, [fd, toUnixTimestamp(atime), toUnixTimestamp(mtime)], callback);
 | |
|     };
 | |
|     Volume.prototype.utimesBase = function (filename, atime, mtime) {
 | |
|         var fd = this.openSync(filename, 'r');
 | |
|         try {
 | |
|             this.futimesBase(fd, atime, mtime);
 | |
|         }
 | |
|         finally {
 | |
|             this.closeSync(fd);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.utimesSync = function (path, atime, mtime) {
 | |
|         this.utimesBase(pathToFilename(path), toUnixTimestamp(atime), toUnixTimestamp(mtime));
 | |
|     };
 | |
|     Volume.prototype.utimes = function (path, atime, mtime, callback) {
 | |
|         this.wrapAsync(this.utimesBase, [pathToFilename(path), toUnixTimestamp(atime), toUnixTimestamp(mtime)], callback);
 | |
|     };
 | |
|     Volume.prototype.mkdirBase = function (filename, modeNum) {
 | |
|         var steps = filenameToSteps(filename);
 | |
|         // This will throw if user tries to create root dir `fs.mkdirSync('/')`.
 | |
|         if (!steps.length) {
 | |
|             throw createError(EEXIST, 'mkdir', filename);
 | |
|         }
 | |
|         var dir = this.getLinkParentAsDirOrThrow(filename, 'mkdir');
 | |
|         // Check path already exists.
 | |
|         var name = steps[steps.length - 1];
 | |
|         if (dir.getChild(name))
 | |
|             throw createError(EEXIST, 'mkdir', filename);
 | |
|         dir.createChild(name, this.createNode(true, modeNum));
 | |
|     };
 | |
|     /**
 | |
|      * Creates directory tree recursively.
 | |
|      * @param filename
 | |
|      * @param modeNum
 | |
|      */
 | |
|     Volume.prototype.mkdirpBase = function (filename, modeNum) {
 | |
|         var fullPath = resolve(filename);
 | |
|         var fullPathSansSlash = fullPath.substring(1);
 | |
|         var steps = !fullPathSansSlash ? [] : fullPathSansSlash.split(sep);
 | |
|         var link = this.root;
 | |
|         var created = false;
 | |
|         for (var i = 0; i < steps.length; i++) {
 | |
|             var step = steps[i];
 | |
|             if (!link.getNode().isDirectory())
 | |
|                 throw createError(ENOTDIR, 'mkdir', link.getPath());
 | |
|             var child = link.getChild(step);
 | |
|             if (child) {
 | |
|                 if (child.getNode().isDirectory())
 | |
|                     link = child;
 | |
|                 else
 | |
|                     throw createError(ENOTDIR, 'mkdir', child.getPath());
 | |
|             }
 | |
|             else {
 | |
|                 link = link.createChild(step, this.createNode(true, modeNum));
 | |
|                 created = true;
 | |
|             }
 | |
|         }
 | |
|         return created ? fullPath : undefined;
 | |
|     };
 | |
|     Volume.prototype.mkdirSync = function (path, options) {
 | |
|         var opts = getMkdirOptions(options);
 | |
|         var modeNum = modeToNumber(opts.mode, 511);
 | |
|         var filename = pathToFilename(path);
 | |
|         if (opts.recursive)
 | |
|             return this.mkdirpBase(filename, modeNum);
 | |
|         this.mkdirBase(filename, modeNum);
 | |
|     };
 | |
|     Volume.prototype.mkdir = function (path, a, b) {
 | |
|         var opts = getMkdirOptions(a);
 | |
|         var callback = validateCallback(typeof a === 'function' ? a : b);
 | |
|         var modeNum = modeToNumber(opts.mode, 511);
 | |
|         var filename = pathToFilename(path);
 | |
|         if (opts.recursive)
 | |
|             this.wrapAsync(this.mkdirpBase, [filename, modeNum], callback);
 | |
|         else
 | |
|             this.wrapAsync(this.mkdirBase, [filename, modeNum], callback);
 | |
|     };
 | |
|     // legacy interface
 | |
|     Volume.prototype.mkdirpSync = function (path, mode) {
 | |
|         return this.mkdirSync(path, { mode: mode, recursive: true });
 | |
|     };
 | |
|     Volume.prototype.mkdirp = function (path, a, b) {
 | |
|         var mode = typeof a === 'function' ? undefined : a;
 | |
|         var callback = validateCallback(typeof a === 'function' ? a : b);
 | |
|         this.mkdir(path, { mode: mode, recursive: true }, callback);
 | |
|     };
 | |
|     Volume.prototype.mkdtempBase = function (prefix, encoding, retry) {
 | |
|         if (retry === void 0) { retry = 5; }
 | |
|         var filename = prefix + this.genRndStr();
 | |
|         try {
 | |
|             this.mkdirBase(filename, 511 /* MODE.DIR */);
 | |
|             return (0, encoding_1.strToEncoding)(filename, encoding);
 | |
|         }
 | |
|         catch (err) {
 | |
|             if (err.code === EEXIST) {
 | |
|                 if (retry > 1)
 | |
|                     return this.mkdtempBase(prefix, encoding, retry - 1);
 | |
|                 else
 | |
|                     throw Error('Could not create temp dir.');
 | |
|             }
 | |
|             else
 | |
|                 throw err;
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.mkdtempSync = function (prefix, options) {
 | |
|         var encoding = getDefaultOpts(options).encoding;
 | |
|         if (!prefix || typeof prefix !== 'string')
 | |
|             throw new TypeError('filename prefix is required');
 | |
|         nullCheck(prefix);
 | |
|         return this.mkdtempBase(prefix, encoding);
 | |
|     };
 | |
|     Volume.prototype.mkdtemp = function (prefix, a, b) {
 | |
|         var _a = getDefaultOptsAndCb(a, b), encoding = _a[0].encoding, callback = _a[1];
 | |
|         if (!prefix || typeof prefix !== 'string')
 | |
|             throw new TypeError('filename prefix is required');
 | |
|         if (!nullCheck(prefix))
 | |
|             return;
 | |
|         this.wrapAsync(this.mkdtempBase, [prefix, encoding], callback);
 | |
|     };
 | |
|     Volume.prototype.rmdirBase = function (filename, options) {
 | |
|         var opts = getRmdirOptions(options);
 | |
|         var link = this.getLinkAsDirOrThrow(filename, 'rmdir');
 | |
|         // Check directory is empty.
 | |
|         if (link.length && !opts.recursive)
 | |
|             throw createError(ENOTEMPTY, 'rmdir', filename);
 | |
|         this.deleteLink(link);
 | |
|     };
 | |
|     Volume.prototype.rmdirSync = function (path, options) {
 | |
|         this.rmdirBase(pathToFilename(path), options);
 | |
|     };
 | |
|     Volume.prototype.rmdir = function (path, a, b) {
 | |
|         var opts = getRmdirOptions(a);
 | |
|         var callback = validateCallback(typeof a === 'function' ? a : b);
 | |
|         this.wrapAsync(this.rmdirBase, [pathToFilename(path), opts], callback);
 | |
|     };
 | |
|     Volume.prototype.rmBase = function (filename, options) {
 | |
|         if (options === void 0) { options = {}; }
 | |
|         var link = this.getResolvedLink(filename);
 | |
|         if (!link) {
 | |
|             // "stat" is used to match Node's native error message.
 | |
|             if (!options.force)
 | |
|                 throw createError(ENOENT, 'stat', filename);
 | |
|             return;
 | |
|         }
 | |
|         if (link.getNode().isDirectory()) {
 | |
|             if (!options.recursive) {
 | |
|                 throw createError(ERR_FS_EISDIR, 'rm', filename);
 | |
|             }
 | |
|         }
 | |
|         this.deleteLink(link);
 | |
|     };
 | |
|     Volume.prototype.rmSync = function (path, options) {
 | |
|         this.rmBase(pathToFilename(path), options);
 | |
|     };
 | |
|     Volume.prototype.rm = function (path, a, b) {
 | |
|         var _a = getRmOptsAndCb(a, b), opts = _a[0], callback = _a[1];
 | |
|         this.wrapAsync(this.rmBase, [pathToFilename(path), opts], callback);
 | |
|     };
 | |
|     Volume.prototype.fchmodBase = function (fd, modeNum) {
 | |
|         var file = this.getFileByFdOrThrow(fd, 'fchmod');
 | |
|         file.chmod(modeNum);
 | |
|     };
 | |
|     Volume.prototype.fchmodSync = function (fd, mode) {
 | |
|         this.fchmodBase(fd, modeToNumber(mode));
 | |
|     };
 | |
|     Volume.prototype.fchmod = function (fd, mode, callback) {
 | |
|         this.wrapAsync(this.fchmodBase, [fd, modeToNumber(mode)], callback);
 | |
|     };
 | |
|     Volume.prototype.chmodBase = function (filename, modeNum) {
 | |
|         var fd = this.openSync(filename, 'r');
 | |
|         try {
 | |
|             this.fchmodBase(fd, modeNum);
 | |
|         }
 | |
|         finally {
 | |
|             this.closeSync(fd);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.chmodSync = function (path, mode) {
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var filename = pathToFilename(path);
 | |
|         this.chmodBase(filename, modeNum);
 | |
|     };
 | |
|     Volume.prototype.chmod = function (path, mode, callback) {
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.chmodBase, [filename, modeNum], callback);
 | |
|     };
 | |
|     Volume.prototype.lchmodBase = function (filename, modeNum) {
 | |
|         var fd = this.openBase(filename, O_RDWR, 0, false);
 | |
|         try {
 | |
|             this.fchmodBase(fd, modeNum);
 | |
|         }
 | |
|         finally {
 | |
|             this.closeSync(fd);
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.lchmodSync = function (path, mode) {
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var filename = pathToFilename(path);
 | |
|         this.lchmodBase(filename, modeNum);
 | |
|     };
 | |
|     Volume.prototype.lchmod = function (path, mode, callback) {
 | |
|         var modeNum = modeToNumber(mode);
 | |
|         var filename = pathToFilename(path);
 | |
|         this.wrapAsync(this.lchmodBase, [filename, modeNum], callback);
 | |
|     };
 | |
|     Volume.prototype.fchownBase = function (fd, uid, gid) {
 | |
|         this.getFileByFdOrThrow(fd, 'fchown').chown(uid, gid);
 | |
|     };
 | |
|     Volume.prototype.fchownSync = function (fd, uid, gid) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.fchownBase(fd, uid, gid);
 | |
|     };
 | |
|     Volume.prototype.fchown = function (fd, uid, gid, callback) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.wrapAsync(this.fchownBase, [fd, uid, gid], callback);
 | |
|     };
 | |
|     Volume.prototype.chownBase = function (filename, uid, gid) {
 | |
|         var link = this.getResolvedLinkOrThrow(filename, 'chown');
 | |
|         var node = link.getNode();
 | |
|         node.chown(uid, gid);
 | |
|         // if(node.isFile() || node.isSymlink()) {
 | |
|         //
 | |
|         // } else if(node.isDirectory()) {
 | |
|         //
 | |
|         // } else {
 | |
|         // TODO: What do we do here?
 | |
|         // }
 | |
|     };
 | |
|     Volume.prototype.chownSync = function (path, uid, gid) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.chownBase(pathToFilename(path), uid, gid);
 | |
|     };
 | |
|     Volume.prototype.chown = function (path, uid, gid, callback) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.wrapAsync(this.chownBase, [pathToFilename(path), uid, gid], callback);
 | |
|     };
 | |
|     Volume.prototype.lchownBase = function (filename, uid, gid) {
 | |
|         this.getLinkOrThrow(filename, 'lchown').getNode().chown(uid, gid);
 | |
|     };
 | |
|     Volume.prototype.lchownSync = function (path, uid, gid) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.lchownBase(pathToFilename(path), uid, gid);
 | |
|     };
 | |
|     Volume.prototype.lchown = function (path, uid, gid, callback) {
 | |
|         validateUid(uid);
 | |
|         validateGid(gid);
 | |
|         this.wrapAsync(this.lchownBase, [pathToFilename(path), uid, gid], callback);
 | |
|     };
 | |
|     Volume.prototype.watchFile = function (path, a, b) {
 | |
|         var filename = pathToFilename(path);
 | |
|         var options = a;
 | |
|         var listener = b;
 | |
|         if (typeof options === 'function') {
 | |
|             listener = a;
 | |
|             options = null;
 | |
|         }
 | |
|         if (typeof listener !== 'function') {
 | |
|             throw Error('"watchFile()" requires a listener function');
 | |
|         }
 | |
|         var interval = 5007;
 | |
|         var persistent = true;
 | |
|         if (options && typeof options === 'object') {
 | |
|             if (typeof options.interval === 'number')
 | |
|                 interval = options.interval;
 | |
|             if (typeof options.persistent === 'boolean')
 | |
|                 persistent = options.persistent;
 | |
|         }
 | |
|         var watcher = this.statWatchers[filename];
 | |
|         if (!watcher) {
 | |
|             watcher = new this.StatWatcher();
 | |
|             watcher.start(filename, persistent, interval);
 | |
|             this.statWatchers[filename] = watcher;
 | |
|         }
 | |
|         watcher.addListener('change', listener);
 | |
|         return watcher;
 | |
|     };
 | |
|     Volume.prototype.unwatchFile = function (path, listener) {
 | |
|         var filename = pathToFilename(path);
 | |
|         var watcher = this.statWatchers[filename];
 | |
|         if (!watcher)
 | |
|             return;
 | |
|         if (typeof listener === 'function') {
 | |
|             watcher.removeListener('change', listener);
 | |
|         }
 | |
|         else {
 | |
|             watcher.removeAllListeners('change');
 | |
|         }
 | |
|         if (watcher.listenerCount('change') === 0) {
 | |
|             watcher.stop();
 | |
|             delete this.statWatchers[filename];
 | |
|         }
 | |
|     };
 | |
|     Volume.prototype.createReadStream = function (path, options) {
 | |
|         return new this.ReadStream(path, options);
 | |
|     };
 | |
|     Volume.prototype.createWriteStream = function (path, options) {
 | |
|         return new this.WriteStream(path, options);
 | |
|     };
 | |
|     // watch(path: PathLike): FSWatcher;
 | |
|     // watch(path: PathLike, options?: IWatchOptions | string): FSWatcher;
 | |
|     Volume.prototype.watch = function (path, options, listener) {
 | |
|         var filename = pathToFilename(path);
 | |
|         var givenOptions = options;
 | |
|         if (typeof options === 'function') {
 | |
|             listener = options;
 | |
|             givenOptions = null;
 | |
|         }
 | |
|         // tslint:disable-next-line prefer-const
 | |
|         var _a = getDefaultOpts(givenOptions), persistent = _a.persistent, recursive = _a.recursive, encoding = _a.encoding;
 | |
|         if (persistent === undefined)
 | |
|             persistent = true;
 | |
|         if (recursive === undefined)
 | |
|             recursive = false;
 | |
|         var watcher = new this.FSWatcher();
 | |
|         watcher.start(filename, persistent, recursive, encoding);
 | |
|         if (listener) {
 | |
|             watcher.addListener('change', listener);
 | |
|         }
 | |
|         return watcher;
 | |
|     };
 | |
|     /**
 | |
|      * Global file descriptor counter. UNIX file descriptors start from 0 and go sequentially
 | |
|      * up, so here, in order not to conflict with them, we choose some big number and descrease
 | |
|      * the file descriptor of every new opened file.
 | |
|      * @type {number}
 | |
|      * @todo This should not be static, right?
 | |
|      */
 | |
|     Volume.fd = 0x7fffffff;
 | |
|     return Volume;
 | |
| }());
 | |
| exports.Volume = Volume;
 | |
| function emitStop(self) {
 | |
|     self.emit('stop');
 | |
| }
 | |
| var StatWatcher = /** @class */ (function (_super) {
 | |
|     __extends(StatWatcher, _super);
 | |
|     function StatWatcher(vol) {
 | |
|         var _this = _super.call(this) || this;
 | |
|         _this.onInterval = function () {
 | |
|             try {
 | |
|                 var stats = _this.vol.statSync(_this.filename);
 | |
|                 if (_this.hasChanged(stats)) {
 | |
|                     _this.emit('change', stats, _this.prev);
 | |
|                     _this.prev = stats;
 | |
|                 }
 | |
|             }
 | |
|             finally {
 | |
|                 _this.loop();
 | |
|             }
 | |
|         };
 | |
|         _this.vol = vol;
 | |
|         return _this;
 | |
|     }
 | |
|     StatWatcher.prototype.loop = function () {
 | |
|         this.timeoutRef = this.setTimeout(this.onInterval, this.interval);
 | |
|     };
 | |
|     StatWatcher.prototype.hasChanged = function (stats) {
 | |
|         // if(!this.prev) return false;
 | |
|         if (stats.mtimeMs > this.prev.mtimeMs)
 | |
|             return true;
 | |
|         if (stats.nlink !== this.prev.nlink)
 | |
|             return true;
 | |
|         return false;
 | |
|     };
 | |
|     StatWatcher.prototype.start = function (path, persistent, interval) {
 | |
|         if (persistent === void 0) { persistent = true; }
 | |
|         if (interval === void 0) { interval = 5007; }
 | |
|         this.filename = pathToFilename(path);
 | |
|         this.setTimeout = persistent
 | |
|             ? setTimeout.bind(typeof globalThis !== 'undefined' ? globalThis : global)
 | |
|             : setTimeoutUnref_1.default;
 | |
|         this.interval = interval;
 | |
|         this.prev = this.vol.statSync(this.filename);
 | |
|         this.loop();
 | |
|     };
 | |
|     StatWatcher.prototype.stop = function () {
 | |
|         clearTimeout(this.timeoutRef);
 | |
|         process_1.default.nextTick(emitStop, this);
 | |
|     };
 | |
|     return StatWatcher;
 | |
| }(events_1.EventEmitter));
 | |
| exports.StatWatcher = StatWatcher;
 | |
| var pool;
 | |
| function allocNewPool(poolSize) {
 | |
|     pool = (0, buffer_1.bufferAllocUnsafe)(poolSize);
 | |
|     pool.used = 0;
 | |
| }
 | |
| util.inherits(FsReadStream, stream_1.Readable);
 | |
| exports.ReadStream = FsReadStream;
 | |
| function FsReadStream(vol, path, options) {
 | |
|     if (!(this instanceof FsReadStream))
 | |
|         return new FsReadStream(vol, path, options);
 | |
|     this._vol = vol;
 | |
|     // a little bit bigger buffer and water marks by default
 | |
|     options = Object.assign({}, getOptions(options, {}));
 | |
|     if (options.highWaterMark === undefined)
 | |
|         options.highWaterMark = 64 * 1024;
 | |
|     stream_1.Readable.call(this, options);
 | |
|     this.path = pathToFilename(path);
 | |
|     this.fd = options.fd === undefined ? null : options.fd;
 | |
|     this.flags = options.flags === undefined ? 'r' : options.flags;
 | |
|     this.mode = options.mode === undefined ? 438 : options.mode;
 | |
|     this.start = options.start;
 | |
|     this.end = options.end;
 | |
|     this.autoClose = options.autoClose === undefined ? true : options.autoClose;
 | |
|     this.pos = undefined;
 | |
|     this.bytesRead = 0;
 | |
|     if (this.start !== undefined) {
 | |
|         if (typeof this.start !== 'number') {
 | |
|             throw new TypeError('"start" option must be a Number');
 | |
|         }
 | |
|         if (this.end === undefined) {
 | |
|             this.end = Infinity;
 | |
|         }
 | |
|         else if (typeof this.end !== 'number') {
 | |
|             throw new TypeError('"end" option must be a Number');
 | |
|         }
 | |
|         if (this.start > this.end) {
 | |
|             throw new Error('"start" option must be <= "end" option');
 | |
|         }
 | |
|         this.pos = this.start;
 | |
|     }
 | |
|     if (typeof this.fd !== 'number')
 | |
|         this.open();
 | |
|     this.on('end', function () {
 | |
|         if (this.autoClose) {
 | |
|             if (this.destroy)
 | |
|                 this.destroy();
 | |
|         }
 | |
|     });
 | |
| }
 | |
| FsReadStream.prototype.open = function () {
 | |
|     var self = this; // tslint:disable-line no-this-assignment
 | |
|     this._vol.open(this.path, this.flags, this.mode, function (er, fd) {
 | |
|         if (er) {
 | |
|             if (self.autoClose) {
 | |
|                 if (self.destroy)
 | |
|                     self.destroy();
 | |
|             }
 | |
|             self.emit('error', er);
 | |
|             return;
 | |
|         }
 | |
|         self.fd = fd;
 | |
|         self.emit('open', fd);
 | |
|         // start the flow of data.
 | |
|         self.read();
 | |
|     });
 | |
| };
 | |
| FsReadStream.prototype._read = function (n) {
 | |
|     if (typeof this.fd !== 'number') {
 | |
|         return this.once('open', function () {
 | |
|             this._read(n);
 | |
|         });
 | |
|     }
 | |
|     if (this.destroyed)
 | |
|         return;
 | |
|     if (!pool || pool.length - pool.used < kMinPoolSpace) {
 | |
|         // discard the old pool.
 | |
|         allocNewPool(this._readableState.highWaterMark);
 | |
|     }
 | |
|     // Grab another reference to the pool in the case that while we're
 | |
|     // in the thread pool another read() finishes up the pool, and
 | |
|     // allocates a new one.
 | |
|     var thisPool = pool;
 | |
|     var toRead = Math.min(pool.length - pool.used, n);
 | |
|     var start = pool.used;
 | |
|     if (this.pos !== undefined)
 | |
|         toRead = Math.min(this.end - this.pos + 1, toRead);
 | |
|     // already read everything we were supposed to read!
 | |
|     // treat as EOF.
 | |
|     if (toRead <= 0)
 | |
|         return this.push(null);
 | |
|     // the actual read.
 | |
|     var self = this; // tslint:disable-line no-this-assignment
 | |
|     this._vol.read(this.fd, pool, pool.used, toRead, this.pos, onread);
 | |
|     // move the pool positions, and internal position for reading.
 | |
|     if (this.pos !== undefined)
 | |
|         this.pos += toRead;
 | |
|     pool.used += toRead;
 | |
|     function onread(er, bytesRead) {
 | |
|         if (er) {
 | |
|             if (self.autoClose && self.destroy) {
 | |
|                 self.destroy();
 | |
|             }
 | |
|             self.emit('error', er);
 | |
|         }
 | |
|         else {
 | |
|             var b = null;
 | |
|             if (bytesRead > 0) {
 | |
|                 self.bytesRead += bytesRead;
 | |
|                 b = thisPool.slice(start, start + bytesRead);
 | |
|             }
 | |
|             self.push(b);
 | |
|         }
 | |
|     }
 | |
| };
 | |
| FsReadStream.prototype._destroy = function (err, cb) {
 | |
|     this.close(function (err2) {
 | |
|         cb(err || err2);
 | |
|     });
 | |
| };
 | |
| FsReadStream.prototype.close = function (cb) {
 | |
|     var _this = this;
 | |
|     var _a;
 | |
|     if (cb)
 | |
|         this.once('close', cb);
 | |
|     if (this.closed || typeof this.fd !== 'number') {
 | |
|         if (typeof this.fd !== 'number') {
 | |
|             this.once('open', closeOnOpen);
 | |
|             return;
 | |
|         }
 | |
|         return process_1.default.nextTick(function () { return _this.emit('close'); });
 | |
|     }
 | |
|     // Since Node 18, there is only a getter for '.closed'.
 | |
|     // The first branch mimics other setters from Readable.
 | |
|     // See https://github.com/nodejs/node/blob/v18.0.0/lib/internal/streams/readable.js#L1243
 | |
|     if (typeof ((_a = this._readableState) === null || _a === void 0 ? void 0 : _a.closed) === 'boolean') {
 | |
|         this._readableState.closed = true;
 | |
|     }
 | |
|     else {
 | |
|         this.closed = true;
 | |
|     }
 | |
|     this._vol.close(this.fd, function (er) {
 | |
|         if (er)
 | |
|             _this.emit('error', er);
 | |
|         else
 | |
|             _this.emit('close');
 | |
|     });
 | |
|     this.fd = null;
 | |
| };
 | |
| // needed because as it will be called with arguments
 | |
| // that does not match this.close() signature
 | |
| function closeOnOpen(fd) {
 | |
|     this.close();
 | |
| }
 | |
| util.inherits(FsWriteStream, stream_1.Writable);
 | |
| exports.WriteStream = FsWriteStream;
 | |
| function FsWriteStream(vol, path, options) {
 | |
|     if (!(this instanceof FsWriteStream))
 | |
|         return new FsWriteStream(vol, path, options);
 | |
|     this._vol = vol;
 | |
|     options = Object.assign({}, getOptions(options, {}));
 | |
|     stream_1.Writable.call(this, options);
 | |
|     this.path = pathToFilename(path);
 | |
|     this.fd = options.fd === undefined ? null : options.fd;
 | |
|     this.flags = options.flags === undefined ? 'w' : options.flags;
 | |
|     this.mode = options.mode === undefined ? 438 : options.mode;
 | |
|     this.start = options.start;
 | |
|     this.autoClose = options.autoClose === undefined ? true : !!options.autoClose;
 | |
|     this.pos = undefined;
 | |
|     this.bytesWritten = 0;
 | |
|     if (this.start !== undefined) {
 | |
|         if (typeof this.start !== 'number') {
 | |
|             throw new TypeError('"start" option must be a Number');
 | |
|         }
 | |
|         if (this.start < 0) {
 | |
|             throw new Error('"start" must be >= zero');
 | |
|         }
 | |
|         this.pos = this.start;
 | |
|     }
 | |
|     if (options.encoding)
 | |
|         this.setDefaultEncoding(options.encoding);
 | |
|     if (typeof this.fd !== 'number')
 | |
|         this.open();
 | |
|     // dispose on finish.
 | |
|     this.once('finish', function () {
 | |
|         if (this.autoClose) {
 | |
|             this.close();
 | |
|         }
 | |
|     });
 | |
| }
 | |
| FsWriteStream.prototype.open = function () {
 | |
|     this._vol.open(this.path, this.flags, this.mode, function (er, fd) {
 | |
|         if (er) {
 | |
|             if (this.autoClose && this.destroy) {
 | |
|                 this.destroy();
 | |
|             }
 | |
|             this.emit('error', er);
 | |
|             return;
 | |
|         }
 | |
|         this.fd = fd;
 | |
|         this.emit('open', fd);
 | |
|     }.bind(this));
 | |
| };
 | |
| FsWriteStream.prototype._write = function (data, encoding, cb) {
 | |
|     if (!(data instanceof buffer_1.Buffer || data instanceof Uint8Array))
 | |
|         return this.emit('error', new Error('Invalid data'));
 | |
|     if (typeof this.fd !== 'number') {
 | |
|         return this.once('open', function () {
 | |
|             this._write(data, encoding, cb);
 | |
|         });
 | |
|     }
 | |
|     var self = this; // tslint:disable-line no-this-assignment
 | |
|     this._vol.write(this.fd, data, 0, data.length, this.pos, function (er, bytes) {
 | |
|         if (er) {
 | |
|             if (self.autoClose && self.destroy) {
 | |
|                 self.destroy();
 | |
|             }
 | |
|             return cb(er);
 | |
|         }
 | |
|         self.bytesWritten += bytes;
 | |
|         cb();
 | |
|     });
 | |
|     if (this.pos !== undefined)
 | |
|         this.pos += data.length;
 | |
| };
 | |
| FsWriteStream.prototype._writev = function (data, cb) {
 | |
|     if (typeof this.fd !== 'number') {
 | |
|         return this.once('open', function () {
 | |
|             this._writev(data, cb);
 | |
|         });
 | |
|     }
 | |
|     var self = this; // tslint:disable-line no-this-assignment
 | |
|     var len = data.length;
 | |
|     var chunks = new Array(len);
 | |
|     var size = 0;
 | |
|     for (var i = 0; i < len; i++) {
 | |
|         var chunk = data[i].chunk;
 | |
|         chunks[i] = chunk;
 | |
|         size += chunk.length;
 | |
|     }
 | |
|     var buf = buffer_1.Buffer.concat(chunks);
 | |
|     this._vol.write(this.fd, buf, 0, buf.length, this.pos, function (er, bytes) {
 | |
|         if (er) {
 | |
|             if (self.destroy)
 | |
|                 self.destroy();
 | |
|             return cb(er);
 | |
|         }
 | |
|         self.bytesWritten += bytes;
 | |
|         cb();
 | |
|     });
 | |
|     if (this.pos !== undefined)
 | |
|         this.pos += size;
 | |
| };
 | |
| FsWriteStream.prototype.close = function (cb) {
 | |
|     var _this = this;
 | |
|     var _a;
 | |
|     if (cb)
 | |
|         this.once('close', cb);
 | |
|     if (this.closed || typeof this.fd !== 'number') {
 | |
|         if (typeof this.fd !== 'number') {
 | |
|             this.once('open', closeOnOpen);
 | |
|             return;
 | |
|         }
 | |
|         return process_1.default.nextTick(function () { return _this.emit('close'); });
 | |
|     }
 | |
|     // Since Node 18, there is only a getter for '.closed'.
 | |
|     // The first branch mimics other setters from Writable.
 | |
|     // See https://github.com/nodejs/node/blob/v18.0.0/lib/internal/streams/writable.js#L766
 | |
|     if (typeof ((_a = this._writableState) === null || _a === void 0 ? void 0 : _a.closed) === 'boolean') {
 | |
|         this._writableState.closed = true;
 | |
|     }
 | |
|     else {
 | |
|         this.closed = true;
 | |
|     }
 | |
|     this._vol.close(this.fd, function (er) {
 | |
|         if (er)
 | |
|             _this.emit('error', er);
 | |
|         else
 | |
|             _this.emit('close');
 | |
|     });
 | |
|     this.fd = null;
 | |
| };
 | |
| FsWriteStream.prototype._destroy = FsReadStream.prototype._destroy;
 | |
| // There is no shutdown() for files.
 | |
| FsWriteStream.prototype.destroySoon = FsWriteStream.prototype.end;
 | |
| // ---------------------------------------- FSWatcher
 | |
| var FSWatcher = /** @class */ (function (_super) {
 | |
|     __extends(FSWatcher, _super);
 | |
|     function FSWatcher(vol) {
 | |
|         var _this = _super.call(this) || this;
 | |
|         _this._filename = '';
 | |
|         _this._filenameEncoded = '';
 | |
|         // _persistent: boolean = true;
 | |
|         _this._recursive = false;
 | |
|         _this._encoding = encoding_1.ENCODING_UTF8;
 | |
|         // inode -> removers
 | |
|         _this._listenerRemovers = new Map();
 | |
|         _this._onParentChild = function (link) {
 | |
|             if (link.getName() === _this._getName()) {
 | |
|                 _this._emit('rename');
 | |
|             }
 | |
|         };
 | |
|         _this._emit = function (type) {
 | |
|             _this.emit('change', type, _this._filenameEncoded);
 | |
|         };
 | |
|         _this._persist = function () {
 | |
|             _this._timer = setTimeout(_this._persist, 1e6);
 | |
|         };
 | |
|         _this._vol = vol;
 | |
|         return _this;
 | |
|         // TODO: Emit "error" messages when watching.
 | |
|         // this._handle.onchange = function(status, eventType, filename) {
 | |
|         //     if (status < 0) {
 | |
|         //         self._handle.close();
 | |
|         //         const error = !filename ?
 | |
|         //             errnoException(status, 'Error watching file for changes:') :
 | |
|         //             errnoException(status, `Error watching file ${filename} for changes:`);
 | |
|         //         error.filename = filename;
 | |
|         //         self.emit('error', error);
 | |
|         //     } else {
 | |
|         //         self.emit('change', eventType, filename);
 | |
|         //     }
 | |
|         // };
 | |
|     }
 | |
|     FSWatcher.prototype._getName = function () {
 | |
|         return this._steps[this._steps.length - 1];
 | |
|     };
 | |
|     FSWatcher.prototype.start = function (path, persistent, recursive, encoding) {
 | |
|         var _this = this;
 | |
|         if (persistent === void 0) { persistent = true; }
 | |
|         if (recursive === void 0) { recursive = false; }
 | |
|         if (encoding === void 0) { encoding = encoding_1.ENCODING_UTF8; }
 | |
|         this._filename = pathToFilename(path);
 | |
|         this._steps = filenameToSteps(this._filename);
 | |
|         this._filenameEncoded = (0, encoding_1.strToEncoding)(this._filename);
 | |
|         // this._persistent = persistent;
 | |
|         this._recursive = recursive;
 | |
|         this._encoding = encoding;
 | |
|         try {
 | |
|             this._link = this._vol.getLinkOrThrow(this._filename, 'FSWatcher');
 | |
|         }
 | |
|         catch (err) {
 | |
|             var error = new Error("watch ".concat(this._filename, " ").concat(err.code));
 | |
|             error.code = err.code;
 | |
|             error.errno = err.code;
 | |
|             throw error;
 | |
|         }
 | |
|         var watchLinkNodeChanged = function (link) {
 | |
|             var _a;
 | |
|             var filepath = link.getPath();
 | |
|             var node = link.getNode();
 | |
|             var onNodeChange = function () {
 | |
|                 var filename = relative(_this._filename, filepath);
 | |
|                 if (!filename) {
 | |
|                     filename = _this._getName();
 | |
|                 }
 | |
|                 return _this.emit('change', 'change', filename);
 | |
|             };
 | |
|             node.on('change', onNodeChange);
 | |
|             var removers = (_a = _this._listenerRemovers.get(node.ino)) !== null && _a !== void 0 ? _a : [];
 | |
|             removers.push(function () { return node.removeListener('change', onNodeChange); });
 | |
|             _this._listenerRemovers.set(node.ino, removers);
 | |
|         };
 | |
|         var watchLinkChildrenChanged = function (link) {
 | |
|             var _a;
 | |
|             var node = link.getNode();
 | |
|             // when a new link added
 | |
|             var onLinkChildAdd = function (l) {
 | |
|                 _this.emit('change', 'rename', relative(_this._filename, l.getPath()));
 | |
|                 setTimeout(function () {
 | |
|                     // 1. watch changes of the new link-node
 | |
|                     watchLinkNodeChanged(l);
 | |
|                     // 2. watch changes of the new link-node's children
 | |
|                     watchLinkChildrenChanged(l);
 | |
|                 });
 | |
|             };
 | |
|             // when a new link deleted
 | |
|             var onLinkChildDelete = function (l) {
 | |
|                 // remove the listeners of the children nodes
 | |
|                 var removeLinkNodeListeners = function (curLink) {
 | |
|                     var ino = curLink.getNode().ino;
 | |
|                     var removers = _this._listenerRemovers.get(ino);
 | |
|                     if (removers) {
 | |
|                         removers.forEach(function (r) { return r(); });
 | |
|                         _this._listenerRemovers.delete(ino);
 | |
|                     }
 | |
|                     Object.values(curLink.children).forEach(function (childLink) {
 | |
|                         if (childLink) {
 | |
|                             removeLinkNodeListeners(childLink);
 | |
|                         }
 | |
|                     });
 | |
|                 };
 | |
|                 removeLinkNodeListeners(l);
 | |
|                 _this.emit('change', 'rename', relative(_this._filename, l.getPath()));
 | |
|             };
 | |
|             // children nodes changed
 | |
|             Object.entries(link.children).forEach(function (_a) {
 | |
|                 var name = _a[0], childLink = _a[1];
 | |
|                 if (childLink && name !== '.' && name !== '..') {
 | |
|                     watchLinkNodeChanged(childLink);
 | |
|                 }
 | |
|             });
 | |
|             // link children add/remove
 | |
|             link.on('child:add', onLinkChildAdd);
 | |
|             link.on('child:delete', onLinkChildDelete);
 | |
|             var removers = (_a = _this._listenerRemovers.get(node.ino)) !== null && _a !== void 0 ? _a : [];
 | |
|             removers.push(function () {
 | |
|                 link.removeListener('child:add', onLinkChildAdd);
 | |
|                 link.removeListener('child:delete', onLinkChildDelete);
 | |
|             });
 | |
|             if (recursive) {
 | |
|                 Object.entries(link.children).forEach(function (_a) {
 | |
|                     var name = _a[0], childLink = _a[1];
 | |
|                     if (childLink && name !== '.' && name !== '..') {
 | |
|                         watchLinkChildrenChanged(childLink);
 | |
|                     }
 | |
|                 });
 | |
|             }
 | |
|         };
 | |
|         watchLinkNodeChanged(this._link);
 | |
|         watchLinkChildrenChanged(this._link);
 | |
|         var parent = this._link.parent;
 | |
|         if (parent) {
 | |
|             // parent.on('child:add', this._onParentChild);
 | |
|             parent.setMaxListeners(parent.getMaxListeners() + 1);
 | |
|             parent.on('child:delete', this._onParentChild);
 | |
|         }
 | |
|         if (persistent)
 | |
|             this._persist();
 | |
|     };
 | |
|     FSWatcher.prototype.close = function () {
 | |
|         clearTimeout(this._timer);
 | |
|         this._listenerRemovers.forEach(function (removers) {
 | |
|             removers.forEach(function (r) { return r(); });
 | |
|         });
 | |
|         this._listenerRemovers.clear();
 | |
|         var parent = this._link.parent;
 | |
|         if (parent) {
 | |
|             // parent.removeListener('child:add', this._onParentChild);
 | |
|             parent.removeListener('child:delete', this._onParentChild);
 | |
|         }
 | |
|     };
 | |
|     return FSWatcher;
 | |
| }(events_1.EventEmitter));
 | |
| exports.FSWatcher = FSWatcher;
 |