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vue-hello/node_modules/memfs/lib/volume.js

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"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',
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;
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.
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.
FLAGS[FLAGS["wx"] = O_WRONLY | O_CREAT | O_TRUNC | O_EXCL] = "wx";
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.
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.
FLAGS[FLAGS["a"] = O_WRONLY | O_APPEND | O_CREAT] = "a";
// Like 'a' but fails if path exists.
FLAGS[FLAGS["ax"] = O_WRONLY | O_APPEND | O_CREAT | O_EXCL] = "ax";
FLAGS[FLAGS["xa"] = FLAGS.ax] = "xa";
// Open file for reading and appending. The file is created if it does not exist.
FLAGS[FLAGS["a+"] = O_RDWR | O_APPEND | O_CREAT] = "a+";
// Like 'a+' but fails if path exists.
FLAGS[FLAGS["ax+"] = O_RDWR | O_APPEND | O_CREAT | O_EXCL] = "ax+";
FLAGS[FLAGS["xa+"] = FLAGS['ax+']] = "xa+";
})(FLAGS = exports.FLAGS || (exports.FLAGS = {}));
function flagsToNumber(flags) {
if (typeof flags === 'number')
return flags;
if (typeof flags === 'string') {
var flagsNum = FLAGS[flags];
if (typeof flagsNum !== 'undefined')
return flagsNum;
}
// throw new TypeError(formatError(ERRSTR_FLAG(flags)));
throw new errors.TypeError('ERR_INVALID_OPT_VALUE', 'flags', flags);
}
exports.flagsToNumber = flagsToNumber;
// ---------------------------------------- Options
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) {
return typeof options === 'function' ? [getOpts(), options] : [getOpts(options), validateCallback(callback)];
};
}
var optsDefaults = {
encoding: 'utf8',
};
var getDefaultOpts = optsGenerator(optsDefaults);
var getDefaultOptsAndCb = optsAndCbGenerator(getDefaultOpts);
var readFileOptsDefaults = {
flag: 'r',
};
var getReadFileOptions = optsGenerator(readFileOptsDefaults);
var writeFileDefaults = {
encoding: 'utf8',
mode: 438 /* DEFAULT */,
flag: FLAGS[FLAGS.w],
};
var getWriteFileOptions = optsGenerator(writeFileDefaults);
var appendFileDefaults = {
encoding: 'utf8',
mode: 438 /* 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 /* 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.substr(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).substr(2, 6);
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) {
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 /* DIR */);
this.writeFileSync(filename, data);
}
else {
this.mkdirpBase(filename, 511 /* 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);
// 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 /* 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 /* DEFAULT */;
callback = a;
}
mode = mode || 438 /* 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 /* 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) {
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) {
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 steps = filenameToSteps(filename);
var link = this.root;
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));
}
}
};
Volume.prototype.mkdirSync = function (path, options) {
var opts = getMkdirOptions(options);
var modeNum = modeToNumber(opts.mode, 511);
var filename = pathToFilename(path);
if (opts.recursive)
this.mkdirpBase(filename, modeNum);
else
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) {
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 /* 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;
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'); });
}
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))
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._destroy = FsReadStream.prototype._destroy;
FsWriteStream.prototype.close = FsReadStream.prototype.close;
// 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;
_this._onNodeChange = function () {
_this._emit('change');
};
_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) {
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;
}
this._link.getNode().on('change', this._onNodeChange);
this._link.on('child:add', this._onNodeChange);
this._link.on('child:delete', this._onNodeChange);
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._link.getNode().removeListener('change', this._onNodeChange);
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;