filer/dist/filer.js

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// modules are defined as an array
// [ module function, map of requires ]
//
// map of requires is short require name -> numeric require
//
// anything defined in a previous bundle is accessed via the
// orig method which is the require for previous bundles
// eslint-disable-next-line no-global-assign
parcelRequire = (function (modules, cache, entry, globalName) {
// Save the require from previous bundle to this closure if any
var previousRequire = typeof parcelRequire === 'function' && parcelRequire;
var nodeRequire = typeof require === 'function' && require;
function newRequire(name, jumped) {
if (!cache[name]) {
if (!modules[name]) {
// if we cannot find the module within our internal map or
// cache jump to the current global require ie. the last bundle
// that was added to the page.
var currentRequire = typeof parcelRequire === 'function' && parcelRequire;
if (!jumped && currentRequire) {
return currentRequire(name, true);
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}
// If there are other bundles on this page the require from the
// previous one is saved to 'previousRequire'. Repeat this as
// many times as there are bundles until the module is found or
// we exhaust the require chain.
if (previousRequire) {
return previousRequire(name, true);
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}
// Try the node require function if it exists.
if (nodeRequire && typeof name === 'string') {
return nodeRequire(name);
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}
var err = new Error('Cannot find module \'' + name + '\'');
err.code = 'MODULE_NOT_FOUND';
throw err;
}
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localRequire.resolve = resolve;
localRequire.cache = {};
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var module = cache[name] = new newRequire.Module(name);
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modules[name][0].call(module.exports, localRequire, module, module.exports, this);
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}
return cache[name].exports;
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function localRequire(x){
return newRequire(localRequire.resolve(x));
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}
function resolve(x){
return modules[name][1][x] || x;
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}
}
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function Module(moduleName) {
this.id = moduleName;
this.bundle = newRequire;
this.exports = {};
}
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newRequire.isParcelRequire = true;
newRequire.Module = Module;
newRequire.modules = modules;
newRequire.cache = cache;
newRequire.parent = previousRequire;
newRequire.register = function (id, exports) {
modules[id] = [function (require, module) {
module.exports = exports;
}, {}];
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};
for (var i = 0; i < entry.length; i++) {
newRequire(entry[i]);
}
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if (entry.length) {
// Expose entry point to Node, AMD or browser globals
// Based on https://github.com/ForbesLindesay/umd/blob/master/template.js
var mainExports = newRequire(entry[entry.length - 1]);
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// CommonJS
if (typeof exports === "object" && typeof module !== "undefined") {
module.exports = mainExports;
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// RequireJS
} else if (typeof define === "function" && define.amd) {
define(function () {
return mainExports;
});
// <script>
} else if (globalName) {
this[globalName] = mainExports;
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}
}
// Override the current require with this new one
return newRequire;
})({"0c0E":[function(require,module,exports) {
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
// Symbols is a better way to do this, but if we don't have support we'll just
// have to make do with an unlikely token
var customArgumentsToken = Symbol ? Symbol("__ES6-PROMISIFY--CUSTOM-ARGUMENTS__") : "__ES6-PROMISIFY--CUSTOM-ARGUMENTS__";
/**
* promisify()
* Transforms callback-based function -- func(arg1, arg2 .. argN, callback) -- into
* an ES6-compatible Promise. Promisify provides a default callback of the form (error, result)
* and rejects when `error` is truthy.
*
* @param {function} original - The function to promisify
* @return {function} A promisified version of `original`
*/
function promisify(original) {
// Ensure the argument is a function
if (typeof original !== "function") {
throw new TypeError("Argument to promisify must be a function");
}
// If the user has asked us to decode argument names for them, honour that
var argumentNames = original[customArgumentsToken];
// If the user has supplied a custom Promise implementation, use it. Otherwise
// fall back to whatever we can find on the global object.
var ES6Promise = promisify.Promise || Promise;
// If we can find no Promise implemention, then fail now.
if (typeof ES6Promise !== "function") {
throw new Error("No Promise implementation found; do you need a polyfill?");
}
return function () {
var _this = this;
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
return new ES6Promise(function (resolve, reject) {
// Append the callback bound to the context
args.push(function callback(err) {
if (err) {
return reject(err);
}
for (var _len2 = arguments.length, values = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
values[_key2 - 1] = arguments[_key2];
}
if (values.length === 1 || !argumentNames) {
return resolve(values[0]);
}
var o = {};
values.forEach(function (value, index) {
var name = argumentNames[index];
if (name) {
o[name] = value;
}
});
resolve(o);
});
// Call the function.
original.call.apply(original, [_this].concat(args));
});
};
}
// Attach this symbol to the exported function, so users can use it
promisify.argumentNames = customArgumentsToken;
promisify.Promise = undefined;
// Export the public API
exports.promisify = promisify;
},{}],"pBGv":[function(require,module,exports) {
// shim for using process in browser
var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it
// don't break things. But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals. It's inside a
// function because try/catches deoptimize in certain engines.
var cachedSetTimeout;
var cachedClearTimeout;
function defaultSetTimout() {
throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout() {
throw new Error('clearTimeout has not been defined');
}
(function () {
try {
if (typeof setTimeout === 'function') {
cachedSetTimeout = setTimeout;
} else {
cachedSetTimeout = defaultSetTimout;
}
} catch (e) {
cachedSetTimeout = defaultSetTimout;
}
try {
if (typeof clearTimeout === 'function') {
cachedClearTimeout = clearTimeout;
} else {
cachedClearTimeout = defaultClearTimeout;
}
} catch (e) {
cachedClearTimeout = defaultClearTimeout;
}
})();
function runTimeout(fun) {
if (cachedSetTimeout === setTimeout) {
//normal enviroments in sane situations
return setTimeout(fun, 0);
} // if setTimeout wasn't available but was latter defined
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
cachedSetTimeout = setTimeout;
return setTimeout(fun, 0);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedSetTimeout(fun, 0);
} catch (e) {
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedSetTimeout.call(null, fun, 0);
} catch (e) {
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
return cachedSetTimeout.call(this, fun, 0);
}
}
}
function runClearTimeout(marker) {
if (cachedClearTimeout === clearTimeout) {
//normal enviroments in sane situations
return clearTimeout(marker);
} // if clearTimeout wasn't available but was latter defined
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
cachedClearTimeout = clearTimeout;
return clearTimeout(marker);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedClearTimeout(marker);
} catch (e) {
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedClearTimeout.call(null, marker);
} catch (e) {
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
return cachedClearTimeout.call(this, marker);
}
}
}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
if (!draining || !currentQueue) {
return;
}
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = runTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while (len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
runClearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
runTimeout(drainQueue);
}
}; // v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;
process.listeners = function (name) {
return [];
};
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () {
return '/';
};
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function () {
return 0;
};
},{}],"UUq2":[function(require,module,exports) {
var process = require("process");
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
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}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up--; up) {
parts.unshift('..');
}
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}
return parts;
}
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// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
return splitPathRe.exec(filename).slice(1);
};
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// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
var resolvedPath = '',
resolvedAbsolute = false;
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for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[i] : process.cwd();
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// Skip empty and invalid entries
if (typeof path !== 'string') {
throw new TypeError('Arguments to path.resolve must be strings');
} else if (!path) {
continue;
}
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resolvedPath = path + '/' + resolvedPath;
resolvedAbsolute = path.charAt(0) === '/';
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}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when process.cwd() fails)
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// Normalize the path
resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
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return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};
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// path.normalize(path)
// posix version
exports.normalize = function(path) {
var isAbsolute = exports.isAbsolute(path),
trailingSlash = substr(path, -1) === '/';
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// Normalize the path
path = normalizeArray(filter(path.split('/'), function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!path && !isAbsolute) {
path = '.';
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}
if (path && trailingSlash) {
path += '/';
}
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return (isAbsolute ? '/' : '') + path;
};
// posix version
exports.isAbsolute = function(path) {
return path.charAt(0) === '/';
};
// posix version
exports.join = function() {
var paths = Array.prototype.slice.call(arguments, 0);
return exports.normalize(filter(paths, function(p, index) {
if (typeof p !== 'string') {
throw new TypeError('Arguments to path.join must be strings');
}
return p;
}).join('/'));
};
// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
from = exports.resolve(from).substr(1);
to = exports.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') break;
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}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') break;
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}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
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var fromParts = trim(from.split('/'));
var toParts = trim(to.split('/'));
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var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
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var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push('..');
}
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outputParts = outputParts.concat(toParts.slice(samePartsLength));
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return outputParts.join('/');
};
exports.sep = '/';
exports.delimiter = ':';
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exports.dirname = function(path) {
var result = splitPath(path),
root = result[0],
dir = result[1];
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if (!root && !dir) {
// No dirname whatsoever
return '.';
}
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if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}
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return root + dir;
};
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exports.basename = function(path, ext) {
var f = splitPath(path)[2];
// TODO: make this comparison case-insensitive on windows?
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
};
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exports.extname = function(path) {
return splitPath(path)[3];
};
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function filter (xs, f) {
if (xs.filter) return xs.filter(f);
var res = [];
for (var i = 0; i < xs.length; i++) {
if (f(xs[i], i, xs)) res.push(xs[i]);
}
return res;
}
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// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
? function (str, start, len) { return str.substr(start, len) }
: function (str, start, len) {
if (start < 0) start = str.length + start;
return str.substr(start, len);
}
;
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},{"process":"pBGv"}],"UzoP":[function(require,module,exports) {
var process = require("process");
/**
* Patch process to add process.cwd(), always giving the root dir.
* NOTE: this line needs to happen *before* we require in `path`.
*/
process.cwd = function () {
return '/';
};
/**
* https://github.com/browserify/path-browserify via Parcel.
* We use is as a base for our own Filer.Path, and patch/add
* a few things we need for the browser environment.
*/
var nodePath = require('path');
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var filerPath = Object.create(nodePath);
/**
* Patch path.basename() to return / vs. ''
*/
filerPath.basename = function (path, ext) {
var basename = nodePath.basename(path, ext);
return basename === '' ? '/' : basename;
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};
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/**
* Patch path.normalize() to not add a trailing /
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*/
filerPath.normalize = function (path) {
path = nodePath.normalize(path);
return path === '/' ? path : filerPath.removeTrailing(path);
};
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/**
* Add new utility method isNull() to path: check for null paths.
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*/
filerPath.isNull = function (path) {
return ('' + path).indexOf("\0") !== -1;
};
/**
* Add new utility method addTrailing() to add trailing / without doubling to //.
*/
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filerPath.addTrailing = function (path) {
return path.replace(/\/*$/, '/');
};
/**
* Add new utility method removeTrailing() to remove trailing /, dealing with multiple
*/
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filerPath.removeTrailing = function (path) {
path = path.replace(/\/*$/, '');
return path === '' ? '/' : path;
};
module.exports = filerPath;
},{"path":"UUq2","process":"pBGv"}],"3zBM":[function(require,module,exports) {
function generateRandom(template) {
return template.replace(/[xy]/g, function (c) {
var r = Math.random() * 16 | 0,
v = c === 'x' ? r : r & 0x3 | 0x8;
return v.toString(16);
});
}
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function guid() {
return generateRandom('xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx').toUpperCase();
}
/**
* Generate a string of n random characters. Defaults to n=6.
*/
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function randomChars(n) {
n = n || 6;
var template = 'x'.repeat(n);
return generateRandom(template);
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}
function nop() {}
module.exports = {
guid: guid,
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nop: nop,
randomChars: randomChars
};
},{}],"iJA9":[function(require,module,exports) {
var O_READ = 'READ';
var O_WRITE = 'WRITE';
var O_CREATE = 'CREATE';
var O_EXCLUSIVE = 'EXCLUSIVE';
var O_TRUNCATE = 'TRUNCATE';
var O_APPEND = 'APPEND';
var XATTR_CREATE = 'CREATE';
var XATTR_REPLACE = 'REPLACE';
module.exports = {
FILE_SYSTEM_NAME: 'local',
FILE_STORE_NAME: 'files',
IDB_RO: 'readonly',
IDB_RW: 'readwrite',
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WSQL_VERSION: '1',
WSQL_SIZE: 5 * 1024 * 1024,
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WSQL_DESC: 'FileSystem Storage',
NODE_TYPE_FILE: 'FILE',
NODE_TYPE_DIRECTORY: 'DIRECTORY',
NODE_TYPE_SYMBOLIC_LINK: 'SYMLINK',
NODE_TYPE_META: 'META',
DEFAULT_DIR_PERMISSIONS: 0x1ED,
// 755
DEFAULT_FILE_PERMISSIONS: 0x1A4,
// 644
FULL_READ_WRITE_EXEC_PERMISSIONS: 0x1FF,
// 777
READ_WRITE_PERMISSIONS: 0x1B6,
/// 666
SYMLOOP_MAX: 10,
BINARY_MIME_TYPE: 'application/octet-stream',
JSON_MIME_TYPE: 'application/json',
ROOT_DIRECTORY_NAME: '/',
// basename(normalize(path))
// FS Mount Flags
FS_FORMAT: 'FORMAT',
FS_NOCTIME: 'NOCTIME',
FS_NOMTIME: 'NOMTIME',
FS_NODUPEIDCHECK: 'FS_NODUPEIDCHECK',
// FS File Open Flags
O_READ: O_READ,
O_WRITE: O_WRITE,
O_CREATE: O_CREATE,
O_EXCLUSIVE: O_EXCLUSIVE,
O_TRUNCATE: O_TRUNCATE,
O_APPEND: O_APPEND,
O_FLAGS: {
'r': [O_READ],
'r+': [O_READ, O_WRITE],
'w': [O_WRITE, O_CREATE, O_TRUNCATE],
'w+': [O_WRITE, O_READ, O_CREATE, O_TRUNCATE],
'wx': [O_WRITE, O_CREATE, O_EXCLUSIVE, O_TRUNCATE],
'wx+': [O_WRITE, O_READ, O_CREATE, O_EXCLUSIVE, O_TRUNCATE],
'a': [O_WRITE, O_CREATE, O_APPEND],
'a+': [O_WRITE, O_READ, O_CREATE, O_APPEND],
'ax': [O_WRITE, O_CREATE, O_EXCLUSIVE, O_APPEND],
'ax+': [O_WRITE, O_READ, O_CREATE, O_EXCLUSIVE, O_APPEND]
},
XATTR_CREATE: XATTR_CREATE,
XATTR_REPLACE: XATTR_REPLACE,
FS_READY: 'READY',
FS_PENDING: 'PENDING',
FS_ERROR: 'ERROR',
SUPER_NODE_ID: '00000000-0000-0000-0000-000000000000',
// Reserved File Descriptors for streams
STDIN: 0,
STDOUT: 1,
STDERR: 2,
FIRST_DESCRIPTOR: 3,
ENVIRONMENT: {
TMP: '/tmp',
PATH: ''
},
// Duplicate Node's fs.constants
fsConstants: {
O_RDONLY: 0,
O_WRONLY: 1,
O_RDWR: 2,
S_IFMT: 61440,
S_IFREG: 32768,
S_IFDIR: 16384,
S_IFCHR: 8192,
S_IFBLK: 24576,
S_IFIFO: 4096,
S_IFLNK: 40960,
S_IFSOCK: 49152,
O_CREAT: 512,
O_EXCL: 2048,
O_NOCTTY: 131072,
O_TRUNC: 1024,
O_APPEND: 8,
O_DIRECTORY: 1048576,
O_NOFOLLOW: 256,
O_SYNC: 128,
O_DSYNC: 4194304,
O_SYMLINK: 2097152,
O_NONBLOCK: 4,
S_IRWXU: 448,
S_IRUSR: 256,
S_IWUSR: 128,
S_IXUSR: 64,
S_IRWXG: 56,
S_IRGRP: 32,
S_IWGRP: 16,
S_IXGRP: 8,
S_IRWXO: 7,
S_IROTH: 4,
S_IWOTH: 2,
S_IXOTH: 1,
F_OK: 0,
R_OK: 4,
W_OK: 2,
X_OK: 1,
UV_FS_COPYFILE_EXCL: 1,
COPYFILE_EXCL: 1
}
};
},{}],"yh9p":[function(require,module,exports) {
'use strict'
exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray
var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i]
revLookup[code.charCodeAt(i)] = i
}
// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63
function getLens (b64) {
var len = b64.length
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// Trim off extra bytes after placeholder bytes are found
// See: https://github.com/beatgammit/base64-js/issues/42
var validLen = b64.indexOf('=')
if (validLen === -1) validLen = len
var placeHoldersLen = validLen === len
? 0
: 4 - (validLen % 4)
return [validLen, placeHoldersLen]
}
// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
2014-06-10 18:53:04 +00:00
function _byteLength (b64, validLen, placeHoldersLen) {
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
function toByteArray (b64) {
var tmp
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
var curByte = 0
// if there are placeholders, only get up to the last complete 4 chars
var len = placeHoldersLen > 0
? validLen - 4
: validLen
for (var i = 0; i < len; i += 4) {
tmp =
(revLookup[b64.charCodeAt(i)] << 18) |
(revLookup[b64.charCodeAt(i + 1)] << 12) |
(revLookup[b64.charCodeAt(i + 2)] << 6) |
revLookup[b64.charCodeAt(i + 3)]
arr[curByte++] = (tmp >> 16) & 0xFF
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
if (placeHoldersLen === 2) {
tmp =
(revLookup[b64.charCodeAt(i)] << 2) |
(revLookup[b64.charCodeAt(i + 1)] >> 4)
arr[curByte++] = tmp & 0xFF
2014-06-10 18:53:04 +00:00
}
if (placeHoldersLen === 1) {
tmp =
(revLookup[b64.charCodeAt(i)] << 10) |
(revLookup[b64.charCodeAt(i + 1)] << 4) |
(revLookup[b64.charCodeAt(i + 2)] >> 2)
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
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return arr
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}
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] +
lookup[num >> 12 & 0x3F] +
lookup[num >> 6 & 0x3F] +
lookup[num & 0x3F]
}
function encodeChunk (uint8, start, end) {
var tmp
var output = []
for (var i = start; i < end; i += 3) {
tmp =
((uint8[i] << 16) & 0xFF0000) +
((uint8[i + 1] << 8) & 0xFF00) +
(uint8[i + 2] & 0xFF)
output.push(tripletToBase64(tmp))
}
return output.join('')
}
function fromByteArray (uint8) {
var tmp
var len = uint8.length
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
var parts = []
var maxChunkLength = 16383 // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(
uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
))
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1]
parts.push(
lookup[tmp >> 2] +
lookup[(tmp << 4) & 0x3F] +
'=='
)
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + uint8[len - 1]
parts.push(
lookup[tmp >> 10] +
lookup[(tmp >> 4) & 0x3F] +
lookup[(tmp << 2) & 0x3F] +
'='
)
}
return parts.join('')
}
2014-06-10 18:53:04 +00:00
},{}],"JgNJ":[function(require,module,exports) {
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
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}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
2014-06-10 18:53:04 +00:00
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
2014-06-10 18:53:04 +00:00
value = Math.abs(value)
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if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
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}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = ((value * c) - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
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}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
},{}],"REa7":[function(require,module,exports) {
var toString = {}.toString;
module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]';
};
},{}],"dskh":[function(require,module,exports) {
var global = arguments[3];
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Use Object implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* Due to various browser bugs, sometimes the Object implementation will be used even
* when the browser supports typed arrays.
*
* Note:
*
* - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
* See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
*
* - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
*
* - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
* incorrect length in some situations.
* We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
* get the Object implementation, which is slower but behaves correctly.
*/
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
? global.TYPED_ARRAY_SUPPORT
: typedArraySupport()
/*
* Export kMaxLength after typed array support is determined.
*/
exports.kMaxLength = kMaxLength()
function typedArraySupport () {
try {
var arr = new Uint8Array(1)
arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
return arr.foo() === 42 && // typed array instances can be augmented
typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
} catch (e) {
return false
}
}
function kMaxLength () {
return Buffer.TYPED_ARRAY_SUPPORT
? 0x7fffffff
: 0x3fffffff
}
function createBuffer (that, length) {
if (kMaxLength() < length) {
throw new RangeError('Invalid typed array length')
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(length)
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
if (that === null) {
that = new Buffer(length)
}
that.length = length
2014-06-10 18:53:04 +00:00
}
return that
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer (arg, encodingOrOffset, length) {
if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
return new Buffer(arg, encodingOrOffset, length)
2014-06-10 18:53:04 +00:00
}
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new Error(
'If encoding is specified then the first argument must be a string'
)
}
return allocUnsafe(this, arg)
}
return from(this, arg, encodingOrOffset, length)
}
Buffer.poolSize = 8192 // not used by this implementation
// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
arr.__proto__ = Buffer.prototype
return arr
}
function from (that, value, encodingOrOffset, length) {
if (typeof value === 'number') {
throw new TypeError('"value" argument must not be a number')
}
if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
return fromArrayBuffer(that, value, encodingOrOffset, length)
}
if (typeof value === 'string') {
return fromString(that, value, encodingOrOffset)
}
return fromObject(that, value)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(null, value, encodingOrOffset, length)
2014-06-10 18:53:04 +00:00
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
if (typeof Symbol !== 'undefined' && Symbol.species &&
Buffer[Symbol.species] === Buffer) {
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true
})
}
2014-06-10 18:53:04 +00:00
}
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be a number')
} else if (size < 0) {
throw new RangeError('"size" argument must not be negative')
}
2014-06-10 18:53:04 +00:00
}
function alloc (that, size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(that, size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === 'string'
? createBuffer(that, size).fill(fill, encoding)
: createBuffer(that, size).fill(fill)
}
return createBuffer(that, size)
2014-06-10 18:53:04 +00:00
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(null, size, fill, encoding)
}
function allocUnsafe (that, size) {
assertSize(size)
that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) {
for (var i = 0; i < size; ++i) {
that[i] = 0
}
}
return that
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(null, size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(null, size)
}
function fromString (that, string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('"encoding" must be a valid string encoding')
}
var length = byteLength(string, encoding) | 0
that = createBuffer(that, length)
var actual = that.write(string, encoding)
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
that = that.slice(0, actual)
}
return that
}
function fromArrayLike (that, array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0
that = createBuffer(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
function fromArrayBuffer (that, array, byteOffset, length) {
array.byteLength // this throws if `array` is not a valid ArrayBuffer
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('\'offset\' is out of bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('\'length\' is out of bounds')
}
if (byteOffset === undefined && length === undefined) {
array = new Uint8Array(array)
} else if (length === undefined) {
array = new Uint8Array(array, byteOffset)
} else {
array = new Uint8Array(array, byteOffset, length)
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = array
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
that = fromArrayLike(that, array)
}
return that
}
function fromObject (that, obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0
that = createBuffer(that, len)
if (that.length === 0) {
return that
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}
obj.copy(that, 0, 0, len)
return that
2014-06-10 18:53:04 +00:00
}
if (obj) {
if ((typeof ArrayBuffer !== 'undefined' &&
obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
if (typeof obj.length !== 'number' || isnan(obj.length)) {
return createBuffer(that, 0)
}
return fromArrayLike(that, obj)
}
if (obj.type === 'Buffer' && isArray(obj.data)) {
return fromArrayLike(that, obj.data)
}
2014-06-10 18:53:04 +00:00
}
throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
function checked (length) {
// Note: cannot use `length < kMaxLength()` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= kMaxLength()) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + kMaxLength().toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer (length) {
if (+length != length) { // eslint-disable-line eqeqeq
length = 0
}
return Buffer.alloc(+length)
}
Buffer.isBuffer = function isBuffer (b) {
return !!(b != null && b._isBuffer)
}
Buffer.compare = function compare (a, b) {
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError('Arguments must be Buffers')
}
if (a === b) return 0
var x = a.length
var y = b.length
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i]
y = b[i]
break
}
2014-06-10 18:53:04 +00:00
}
if (x < y) return -1
if (y < x) return 1
return 0
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}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer.alloc(0)
2014-06-10 18:53:04 +00:00
}
var i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; ++i) {
length += list[i].length
}
}
var buffer = Buffer.allocUnsafe(length)
var pos = 0
for (i = 0; i < list.length; ++i) {
var buf = list[i]
if (!Buffer.isBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
buf.copy(buffer, pos)
pos += buf.length
}
return buffer
}
function byteLength (string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length
}
if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
(ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
string = '' + string
}
var len = string.length
if (len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
case undefined:
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) return utf8ToBytes(string).length // assume utf8
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
2014-06-10 18:53:04 +00:00
}
Buffer.byteLength = byteLength
2014-06-10 18:53:04 +00:00
function slowToString (encoding, start, end) {
var loweredCase = false
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
2014-06-10 18:53:04 +00:00
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true
function swap (b, n, m) {
var i = b[n]
b[n] = b[m]
b[m] = i
}
Buffer.prototype.swap16 = function swap16 () {
var len = this.length
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1)
}
return this
}
Buffer.prototype.swap32 = function swap32 () {
var len = this.length
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3)
swap(this, i + 1, i + 2)
}
return this
}
Buffer.prototype.swap64 = function swap64 () {
var len = this.length
if (len % 8 !== 0) {
throw new RangeError('Buffer size must be a multiple of 64-bits')
}
for (var i = 0; i < len; i += 8) {
swap(this, i, i + 7)
swap(this, i + 1, i + 6)
swap(this, i + 2, i + 5)
swap(this, i + 3, i + 4)
}
return this
}
Buffer.prototype.toString = function toString () {
var length = this.length | 0
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
var str = ''
var max = exports.INSPECT_MAX_BYTES
if (this.length > 0) {
str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
if (this.length > max) str += ' ... '
}
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (!Buffer.isBuffer(target)) {
throw new TypeError('Argument must be a Buffer')
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
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}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
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var x = thisEnd - thisStart
var y = end - start
var len = Math.min(x, y)
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var thisCopy = this.slice(thisStart, thisEnd)
var targetCopy = target.slice(start, end)
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for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
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}
if (x < y) return -1
if (y < x) return 1
return 0
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}
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
// Empty buffer means no match
if (buffer.length === 0) return -1
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// Normalize byteOffset
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset = +byteOffset // Coerce to Number.
if (isNaN(byteOffset)) {
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
byteOffset = dir ? 0 : (buffer.length - 1)
}
// Normalize byteOffset: negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
if (byteOffset >= buffer.length) {
if (dir) return -1
else byteOffset = buffer.length - 1
} else if (byteOffset < 0) {
if (dir) byteOffset = 0
else return -1
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}
// Normalize val
if (typeof val === 'string') {
val = Buffer.from(val, encoding)
}
// Finally, search either indexOf (if dir is true) or lastIndexOf
if (Buffer.isBuffer(val)) {
// Special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
} else if (typeof val === 'number') {
val = val & 0xFF // Search for a byte value [0-255]
if (Buffer.TYPED_ARRAY_SUPPORT &&
typeof Uint8Array.prototype.indexOf === 'function') {
if (dir) {
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
} else {
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
}
}
return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
}
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throw new TypeError('val must be string, number or Buffer')
}
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
var indexSize = 1
var arrLength = arr.length
var valLength = val.length
if (encoding !== undefined) {
encoding = String(encoding).toLowerCase()
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
encoding === 'utf16le' || encoding === 'utf-16le') {
if (arr.length < 2 || val.length < 2) {
return -1
}
indexSize = 2
arrLength /= 2
valLength /= 2
byteOffset /= 2
}
}
function read (buf, i) {
if (indexSize === 1) {
return buf[i]
} else {
return buf.readUInt16BE(i * indexSize)
}
}
var i
if (dir) {
var foundIndex = -1
for (i = byteOffset; i < arrLength; i++) {
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
if (foundIndex === -1) foundIndex = i
if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
} else {
if (foundIndex !== -1) i -= i - foundIndex
foundIndex = -1
}
}
} else {
if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
for (i = byteOffset; i >= 0; i--) {
var found = true
for (var j = 0; j < valLength; j++) {
if (read(arr, i + j) !== read(val, j)) {
found = false
break
}
}
if (found) return i
}
}
return -1
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}
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
return this.indexOf(val, byteOffset, encoding) !== -1
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}
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
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}
Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
function hexWrite (buf, string, offset, length) {
offset = Number(offset) || 0
var remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
// must be an even number of digits
var strLen = string.length
if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; ++i) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (isNaN(parsed)) return i
buf[offset + i] = parsed
}
return i
}
function utf8Write (buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite (buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function latin1Write (buf, string, offset, length) {
return asciiWrite(buf, string, offset, length)
}
function base64Write (buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write (buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write (string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset | 0
if (isFinite(length)) {
length = length | 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
// legacy write(string, encoding, offset, length) - remove in v0.13
} else {
throw new Error(
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
)
}
var remaining = this.length - offset
if (length === undefined || length > remaining) length = remaining
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
throw new RangeError('Attempt to write outside buffer bounds')
}
if (!encoding) encoding = 'utf8'
var loweredCase = false
for (;;) {
switch (encoding) {
case 'hex':
return hexWrite(this, string, offset, length)
case 'utf8':
case 'utf-8':
return utf8Write(this, string, offset, length)
case 'ascii':
return asciiWrite(this, string, offset, length)
case 'latin1':
case 'binary':
return latin1Write(this, string, offset, length)
case 'base64':
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return ucs2Write(this, string, offset, length)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
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}
Buffer.prototype.toJSON = function toJSON () {
return {
type: 'Buffer',
data: Array.prototype.slice.call(this._arr || this, 0)
}
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}
function base64Slice (buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf)
} else {
return base64.fromByteArray(buf.slice(start, end))
}
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}
function utf8Slice (buf, start, end) {
end = Math.min(buf.length, end)
var res = []
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var i = start
while (i < end) {
var firstByte = buf[i]
var codePoint = null
var bytesPerSequence = (firstByte > 0xEF) ? 4
: (firstByte > 0xDF) ? 3
: (firstByte > 0xBF) ? 2
: 1
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if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint
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switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte
}
break
case 2:
secondByte = buf[i + 1]
if ((secondByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
if (tempCodePoint > 0x7F) {
codePoint = tempCodePoint
}
}
break
case 3:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
codePoint = tempCodePoint
}
}
break
case 4:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
fourthByte = buf[i + 3]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
codePoint = tempCodePoint
}
}
}
}
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if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xFFFD
bytesPerSequence = 1
} else if (codePoint > 0xFFFF) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
codePoint = 0xDC00 | codePoint & 0x3FF
}
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res.push(codePoint)
i += bytesPerSequence
}
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return decodeCodePointsArray(res)
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}
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000
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function decodeCodePointsArray (codePoints) {
var len = codePoints.length
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
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// Decode in chunks to avoid "call stack size exceeded".
var res = ''
var i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function latin1Slice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i])
}
return ret
}
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function hexSlice (buf, start, end) {
var len = buf.length
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if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
var out = ''
for (var i = start; i < end; ++i) {
out += toHex(buf[i])
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}
return out
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}
function utf16leSlice (buf, start, end) {
var bytes = buf.slice(start, end)
var res = ''
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
}
return res
}
Buffer.prototype.slice = function slice (start, end) {
var len = this.length
start = ~~start
end = end === undefined ? len : ~~end
if (start < 0) {
start += len
if (start < 0) start = 0
} else if (start > len) {
start = len
}
if (end < 0) {
end += len
if (end < 0) end = 0
} else if (end > len) {
end = len
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}
if (end < start) end = start
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var newBuf
if (Buffer.TYPED_ARRAY_SUPPORT) {
newBuf = this.subarray(start, end)
newBuf.__proto__ = Buffer.prototype
} else {
var sliceLen = end - start
newBuf = new Buffer(sliceLen, undefined)
for (var i = 0; i < sliceLen; ++i) {
newBuf[i] = this[i + start]
}
}
return newBuf
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}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset (offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
var val = this[offset + --byteLength]
var mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
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Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var i = byteLength
var mul = 1
var val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt (buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var mul = 1
var i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var i = byteLength - 1
var mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
this[offset] = (value & 0xff)
return offset + 1
}
function objectWriteUInt16 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
(littleEndian ? i : 1 - i) * 8
}
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
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this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
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}
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
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this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
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}
function objectWriteUInt32 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffffffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
}
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
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}
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
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this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
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}
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
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var i = 0
var mul = 1
var sub = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
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return offset + byteLength
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}
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = byteLength - 1
var mul = 1
var sub = 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
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}
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
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}
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
}
function checkIEEE754 (buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('Index out of range')
if (offset < 0) throw new RangeError('Index out of range')
}
function writeFloat (buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble (buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
var len = end - start
var i
if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (i = len - 1; i >= 0; --i) {
target[i + targetStart] = this[i + start]
}
} else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
// ascending copy from start
for (i = 0; i < len; ++i) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, start + len),
targetStart
)
}
return len
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}
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
// Handle string cases:
if (typeof val === 'string') {
if (typeof start === 'string') {
encoding = start
start = 0
end = this.length
} else if (typeof end === 'string') {
encoding = end
end = this.length
}
if (val.length === 1) {
var code = val.charCodeAt(0)
if (code < 256) {
val = code
}
}
if (encoding !== undefined && typeof encoding !== 'string') {
throw new TypeError('encoding must be a string')
}
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
} else if (typeof val === 'number') {
val = val & 255
}
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// Invalid ranges are not set to a default, so can range check early.
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError('Out of range index')
}
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if (end <= start) {
return this
}
start = start >>> 0
end = end === undefined ? this.length : end >>> 0
if (!val) val = 0
var i
if (typeof val === 'number') {
for (i = start; i < end; ++i) {
this[i] = val
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}
} else {
var bytes = Buffer.isBuffer(val)
? val
: utf8ToBytes(new Buffer(val, encoding).toString())
var len = bytes.length
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len]
}
}
return this
}
2014-06-10 18:53:04 +00:00
// HELPER FUNCTIONS
// ================
2014-06-10 18:53:04 +00:00
2018-05-29 18:03:59 +00:00
var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
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function base64clean (str) {
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = stringtrim(str).replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
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function stringtrim (str) {
if (str.trim) return str.trim()
return str.replace(/^\s+|\s+$/g, '')
2014-06-10 18:53:04 +00:00
}
function toHex (n) {
if (n < 16) return '0' + n.toString(16)
return n.toString(16)
}
function utf8ToBytes (string, units) {
units = units || Infinity
var codePoint
var length = string.length
var leadSurrogate = null
var bytes = []
for (var i = 0; i < length; ++i) {
codePoint = string.charCodeAt(i)
// is surrogate component
if (codePoint > 0xD7FF && codePoint < 0xE000) {
// last char was a lead
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if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xDBFF) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
}
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// valid lead
leadSurrogate = codePoint
continue
}
// 2 leads in a row
if (codePoint < 0xDC00) {
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
leadSurrogate = codePoint
continue
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}
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// valid surrogate pair
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
2018-05-29 18:03:59 +00:00
leadSurrogate = null
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break
bytes.push(codePoint)
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break
bytes.push(
codePoint >> 0x6 | 0xC0,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break
bytes.push(
codePoint >> 0xC | 0xE0,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
2018-05-29 18:03:59 +00:00
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break
bytes.push(
codePoint >> 0x12 | 0xF0,
codePoint >> 0xC & 0x3F | 0x80,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else {
throw new Error('Invalid code point')
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}
}
return bytes
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}
function asciiToBytes (str) {
var byteArray = []
for (var i = 0; i < str.length; ++i) {
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// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xFF)
}
return byteArray
}
function utf16leToBytes (str, units) {
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var c, hi, lo
var byteArray = []
for (var i = 0; i < str.length; ++i) {
if ((units -= 2) < 0) break
2014-06-10 18:53:04 +00:00
c = str.charCodeAt(i)
hi = c >> 8
lo = c % 256
byteArray.push(lo)
byteArray.push(hi)
}
return byteArray
}
function base64ToBytes (str) {
return base64.toByteArray(base64clean(str))
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}
function blitBuffer (src, dst, offset, length) {
for (var i = 0; i < length; ++i) {
if ((i + offset >= dst.length) || (i >= src.length)) break
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dst[i + offset] = src[i]
}
return i
}
function isnan (val) {
return val !== val // eslint-disable-line no-self-compare
}
2014-06-10 18:53:04 +00:00
},{"base64-js":"yh9p","ieee754":"JgNJ","isarray":"REa7","buffer":"dskh"}],"QO4x":[function(require,module,exports) {
var global = arguments[3];
var Buffer = require("buffer").Buffer;
var FILE_SYSTEM_NAME = require('../constants.js').FILE_SYSTEM_NAME;
var FILE_STORE_NAME = require('../constants.js').FILE_STORE_NAME;
var IDB_RW = require('../constants.js').IDB_RW;
var IDB_RO = require('../constants.js').IDB_RO;
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var indexedDB = global.indexedDB || global.mozIndexedDB || global.webkitIndexedDB || global.msIndexedDB;
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function IndexedDBContext(db, mode) {
this.db = db;
this.mode = mode;
}
IndexedDBContext.prototype._getObjectStore = function () {
if (this.objectStore) {
return this.objectStore;
}
var transaction = this.db.transaction(FILE_STORE_NAME, this.mode);
this.objectStore = transaction.objectStore(FILE_STORE_NAME);
return this.objectStore;
};
IndexedDBContext.prototype.clear = function (callback) {
try {
var objectStore = this._getObjectStore();
var request = objectStore.clear();
request.onsuccess = function () {
callback();
};
request.onerror = function (event) {
event.preventDefault();
callback(event.error);
};
} catch (err) {
callback(err);
}
};
IndexedDBContext.prototype._get = function (key, callback) {
try {
var objectStore = this._getObjectStore();
var request = objectStore.get(key);
request.onsuccess = function onsuccess(event) {
var result = event.target.result;
callback(null, result);
};
request.onerror = function (event) {
event.preventDefault();
callback(event.error);
};
} catch (err) {
callback(err);
}
};
IndexedDBContext.prototype.getObject = function (key, callback) {
this._get(key, callback);
};
IndexedDBContext.prototype.getBuffer = function (key, callback) {
this._get(key, function (err, arrayBuffer) {
if (err) {
return callback(err);
}
callback(null, Buffer.from(arrayBuffer));
});
};
IndexedDBContext.prototype._put = function (key, value, callback) {
try {
var objectStore = this._getObjectStore();
var request = objectStore.put(value, key);
request.onsuccess = function onsuccess(event) {
var result = event.target.result;
callback(null, result);
};
request.onerror = function (event) {
event.preventDefault();
callback(event.error);
};
} catch (err) {
callback(err);
}
};
IndexedDBContext.prototype.putObject = function (key, value, callback) {
this._put(key, value, callback);
};
IndexedDBContext.prototype.putBuffer = function (key, uint8BackedBuffer, callback) {
var buf = uint8BackedBuffer.buffer;
this._put(key, buf, callback);
};
IndexedDBContext.prototype.delete = function (key, callback) {
try {
var objectStore = this._getObjectStore();
var request = objectStore.delete(key);
request.onsuccess = function onsuccess(event) {
var result = event.target.result;
callback(null, result);
};
request.onerror = function (event) {
event.preventDefault();
callback(event.error);
};
} catch (err) {
callback(err);
}
};
function IndexedDB(name) {
this.name = name || FILE_SYSTEM_NAME;
this.db = null;
}
IndexedDB.isSupported = function () {
return !!indexedDB;
};
IndexedDB.prototype.open = function (callback) {
var that = this; // Bail if we already have a db open
if (that.db) {
return callback();
}
try {
// NOTE: we're not using versioned databases.
var openRequest = indexedDB.open(that.name); // If the db doesn't exist, we'll create it
openRequest.onupgradeneeded = function onupgradeneeded(event) {
var db = event.target.result;
if (db.objectStoreNames.contains(FILE_STORE_NAME)) {
db.deleteObjectStore(FILE_STORE_NAME);
}
db.createObjectStore(FILE_STORE_NAME);
};
openRequest.onsuccess = function onsuccess(event) {
that.db = event.target.result;
callback();
};
openRequest.onerror = function onerror(event) {
event.preventDefault();
callback(event.error);
};
} catch (err) {
callback(err);
}
};
IndexedDB.prototype.getReadOnlyContext = function () {
return new IndexedDBContext(this.db, IDB_RO);
};
IndexedDB.prototype.getReadWriteContext = function () {
return new IndexedDBContext(this.db, IDB_RW);
};
module.exports = IndexedDB;
},{"../constants.js":"iJA9","buffer":"dskh"}],"p8GN":[function(require,module,exports) {
var errors = {};
[
/**
* node.js errors - we only use some of these, add as needed.
*/
//'-1:UNKNOWN:unknown error',
//'0:OK:success',
//'1:EOF:end of file',
//'2:EADDRINFO:getaddrinfo error',
'3:EACCES:permission denied', //'4:EAGAIN:resource temporarily unavailable',
//'5:EADDRINUSE:address already in use',
//'6:EADDRNOTAVAIL:address not available',
//'7:EAFNOSUPPORT:address family not supported',
//'8:EALREADY:connection already in progress',
'9:EBADF:bad file descriptor', '10:EBUSY:resource busy or locked', //'11:ECONNABORTED:software caused connection abort',
//'12:ECONNREFUSED:connection refused',
//'13:ECONNRESET:connection reset by peer',
//'14:EDESTADDRREQ:destination address required',
//'15:EFAULT:bad address in system call argument',
//'16:EHOSTUNREACH:host is unreachable',
//'17:EINTR:interrupted system call',
'18:EINVAL:invalid argument', //'19:EISCONN:socket is already connected',
//'20:EMFILE:too many open files',
//'21:EMSGSIZE:message too long',
//'22:ENETDOWN:network is down',
//'23:ENETUNREACH:network is unreachable',
//'24:ENFILE:file table overflow',
//'25:ENOBUFS:no buffer space available',
//'26:ENOMEM:not enough memory',
'27:ENOTDIR:not a directory', '28:EISDIR:illegal operation on a directory', //'29:ENONET:machine is not on the network',
// errno 30 skipped, as per https://github.com/rvagg/node-errno/blob/master/errno.js
//'31:ENOTCONN:socket is not connected',
//'32:ENOTSOCK:socket operation on non-socket',
//'33:ENOTSUP:operation not supported on socket',
'34:ENOENT:no such file or directory', //'35:ENOSYS:function not implemented',
//'36:EPIPE:broken pipe',
//'37:EPROTO:protocol error',
//'38:EPROTONOSUPPORT:protocol not supported',
//'39:EPROTOTYPE:protocol wrong type for socket',
//'40:ETIMEDOUT:connection timed out',
//'41:ECHARSET:invalid Unicode character',
//'42:EAIFAMNOSUPPORT:address family for hostname not supported',
// errno 43 skipped, as per https://github.com/rvagg/node-errno/blob/master/errno.js
//'44:EAISERVICE:servname not supported for ai_socktype',
//'45:EAISOCKTYPE:ai_socktype not supported',
//'46:ESHUTDOWN:cannot send after transport endpoint shutdown',
'47:EEXIST:file already exists', //'48:ESRCH:no such process',
//'49:ENAMETOOLONG:name too long',
'50:EPERM:operation not permitted', '51:ELOOP:too many symbolic links encountered', //'52:EXDEV:cross-device link not permitted',
'53:ENOTEMPTY:directory not empty', //'54:ENOSPC:no space left on device',
'55:EIO:i/o error', //'56:EROFS:read-only file system',
//'57:ENODEV:no such device',
//'58:ESPIPE:invalid seek',
//'59:ECANCELED:operation canceled',
/**
* Filer specific errors
*/
'1000:ENOTMOUNTED:not mounted', '1001:EFILESYSTEMERROR:missing super node, use \'FORMAT\' flag to format filesystem.', '1002:ENOATTR:attribute does not exist'].forEach(function (e) {
e = e.split(':');
var errno = +e[0];
var errName = e[1];
var defaultMessage = e[2];
function FilerError(msg, path) {
Error.call(this);
this.name = errName;
this.code = errName;
this.errno = errno;
this.message = msg || defaultMessage;
if (path) {
this.path = path;
}
this.stack = new Error(this.message).stack;
}
FilerError.prototype = Object.create(Error.prototype);
FilerError.prototype.constructor = FilerError;
FilerError.prototype.toString = function () {
var pathInfo = this.path ? ', \'' + this.path + '\'' : '';
return this.name + ': ' + this.message + pathInfo;
}; // We expose the error as both Errors.EINVAL and Errors[18]
errors[errName] = errors[errno] = FilerError;
});
module.exports = errors;
},{}],"vLJO":[function(require,module,exports) {
/*
* base64-arraybuffer
* https://github.com/niklasvh/base64-arraybuffer
*
* Copyright (c) 2012 Niklas von Hertzen
* Licensed under the MIT license.
*/
(function () {
"use strict";
var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; // Use a lookup table to find the index.
var lookup = new Uint8Array(256);
for (var i = 0; i < chars.length; i++) {
lookup[chars.charCodeAt(i)] = i;
}
exports.encode = function (arraybuffer) {
var bytes = new Uint8Array(arraybuffer),
i,
len = bytes.length,
base64 = "";
for (i = 0; i < len; i += 3) {
base64 += chars[bytes[i] >> 2];
base64 += chars[(bytes[i] & 3) << 4 | bytes[i + 1] >> 4];
base64 += chars[(bytes[i + 1] & 15) << 2 | bytes[i + 2] >> 6];
base64 += chars[bytes[i + 2] & 63];
}
if (len % 3 === 2) {
base64 = base64.substring(0, base64.length - 1) + "=";
} else if (len % 3 === 1) {
base64 = base64.substring(0, base64.length - 2) + "==";
}
return base64;
};
exports.decode = function (base64) {
var bufferLength = base64.length * 0.75,
len = base64.length,
i,
p = 0,
encoded1,
encoded2,
encoded3,
encoded4;
if (base64[base64.length - 1] === "=") {
bufferLength--;
if (base64[base64.length - 2] === "=") {
bufferLength--;
}
}
var arraybuffer = new ArrayBuffer(bufferLength),
bytes = new Uint8Array(arraybuffer);
for (i = 0; i < len; i += 4) {
encoded1 = lookup[base64.charCodeAt(i)];
encoded2 = lookup[base64.charCodeAt(i + 1)];
encoded3 = lookup[base64.charCodeAt(i + 2)];
encoded4 = lookup[base64.charCodeAt(i + 3)];
bytes[p++] = encoded1 << 2 | encoded2 >> 4;
bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
}
return arraybuffer;
};
})();
},{}],"hW+K":[function(require,module,exports) {
var Buffer = require("buffer").Buffer;
var global = arguments[3];
var FILE_SYSTEM_NAME = require('../constants.js').FILE_SYSTEM_NAME;
var FILE_STORE_NAME = require('../constants.js').FILE_STORE_NAME;
var WSQL_VERSION = require('../constants.js').WSQL_VERSION;
var WSQL_SIZE = require('../constants.js').WSQL_SIZE;
var WSQL_DESC = require('../constants.js').WSQL_DESC;
var Errors = require('../errors.js');
var base64ArrayBuffer = require('base64-arraybuffer');
function WebSQLContext(db, isReadOnly) {
var that = this;
this.getTransaction = function (callback) {
if (that.transaction) {
callback(that.transaction);
return;
} // Either do readTransaction() (read-only) or transaction() (read/write)
db[isReadOnly ? 'readTransaction' : 'transaction'](function (transaction) {
that.transaction = transaction;
callback(transaction);
});
};
}
WebSQLContext.prototype.clear = function (callback) {
function onError(transaction, error) {
callback(error);
}
2018-10-30 18:35:33 +00:00
function onSuccess() {
callback(null);
}
this.getTransaction(function (transaction) {
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transaction.executeSql('DELETE FROM ' + FILE_STORE_NAME + ';', [], onSuccess, onError);
});
};
function _get(getTransaction, key, callback) {
function onSuccess(transaction, result) {
// If the key isn't found, return null
var value = result.rows.length === 0 ? null : result.rows.item(0).data;
callback(null, value);
}
function onError(transaction, error) {
callback(error);
}
getTransaction(function (transaction) {
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transaction.executeSql('SELECT data FROM ' + FILE_STORE_NAME + ' WHERE id = ? LIMIT 1;', [key], onSuccess, onError);
});
}
WebSQLContext.prototype.getObject = function (key, callback) {
_get(this.getTransaction, key, function (err, result) {
if (err) {
return callback(err);
}
try {
if (result) {
result = JSON.parse(result);
}
} catch (e) {
return callback(e);
}
callback(null, result);
});
};
WebSQLContext.prototype.getBuffer = function (key, callback) {
_get(this.getTransaction, key, function (err, result) {
if (err) {
return callback(err);
} // Deal with zero-length ArrayBuffers, which will be encoded as ''
if (result || result === '') {
var arrayBuffer = base64ArrayBuffer.decode(result);
result = Buffer.from(arrayBuffer);
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}
callback(null, result);
});
};
function _put(getTransaction, key, value, callback) {
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function onSuccess() {
callback(null);
}
function onError(transaction, error) {
callback(error);
}
getTransaction(function (transaction) {
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transaction.executeSql('INSERT OR REPLACE INTO ' + FILE_STORE_NAME + ' (id, data) VALUES (?, ?);', [key, value], onSuccess, onError);
});
}
WebSQLContext.prototype.putObject = function (key, value, callback) {
var json = JSON.stringify(value);
_put(this.getTransaction, key, json, callback);
};
WebSQLContext.prototype.putBuffer = function (key, uint8BackedBuffer, callback) {
var base64 = base64ArrayBuffer.encode(uint8BackedBuffer.buffer);
_put(this.getTransaction, key, base64, callback);
};
WebSQLContext.prototype.delete = function (key, callback) {
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function onSuccess() {
callback(null);
}
function onError(transaction, error) {
callback(error);
}
this.getTransaction(function (transaction) {
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transaction.executeSql('DELETE FROM ' + FILE_STORE_NAME + ' WHERE id = ?;', [key], onSuccess, onError);
});
};
function WebSQL(name) {
this.name = name || FILE_SYSTEM_NAME;
this.db = null;
}
WebSQL.isSupported = function () {
return !!global.openDatabase;
};
WebSQL.prototype.open = function (callback) {
var that = this; // Bail if we already have a db open
if (that.db) {
return callback();
}
var db = global.openDatabase(that.name, WSQL_VERSION, WSQL_DESC, WSQL_SIZE);
if (!db) {
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callback('[WebSQL] Unable to open database.');
return;
}
function onError(transaction, error) {
if (error.code === 5) {
callback(new Errors.EINVAL('WebSQL cannot be accessed. If private browsing is enabled, disable it.'));
}
callback(error);
}
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function onSuccess() {
that.db = db;
callback();
} // Create the table and index we'll need to store the fs data.
db.transaction(function (transaction) {
function createIndex(transaction) {
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transaction.executeSql('CREATE INDEX IF NOT EXISTS idx_' + FILE_STORE_NAME + '_id' + ' on ' + FILE_STORE_NAME + ' (id);', [], onSuccess, onError);
}
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transaction.executeSql('CREATE TABLE IF NOT EXISTS ' + FILE_STORE_NAME + ' (id unique, data TEXT);', [], createIndex, onError);
});
};
WebSQL.prototype.getReadOnlyContext = function () {
return new WebSQLContext(this.db, true);
};
WebSQL.prototype.getReadWriteContext = function () {
return new WebSQLContext(this.db, false);
};
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module.exports = WebSQL;
},{"../constants.js":"iJA9","../errors.js":"p8GN","base64-arraybuffer":"vLJO","buffer":"dskh"}],"u4Zs":[function(require,module,exports) {
var process = require("process");
var define;
/*global setImmediate: false, setTimeout: false, console: false */
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/**
* async.js shim, based on https://raw.github.com/caolan/async/master/lib/async.js Feb 18, 2014
* Used under MIT - https://github.com/caolan/async/blob/master/LICENSE
*/
(function () {
var async = {}; // async.js functions used in Filer
//// nextTick implementation with browser-compatible fallback ////
if (typeof process === 'undefined' || !process.nextTick) {
if (typeof setImmediate === 'function') {
async.nextTick = function (fn) {
// not a direct alias for IE10 compatibility
setImmediate(fn);
};
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async.setImmediate = async.nextTick;
} else {
async.nextTick = function (fn) {
setTimeout(fn, 0);
};
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async.setImmediate = async.nextTick;
}
} else {
async.nextTick = process.nextTick;
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if (typeof setImmediate !== 'undefined') {
async.setImmediate = function (fn) {
// not a direct alias for IE10 compatibility
setImmediate(fn);
};
} else {
async.setImmediate = async.nextTick;
}
}
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async.eachSeries = function (arr, iterator, callback) {
callback = callback || function () {};
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if (!arr.length) {
return callback();
}
var completed = 0;
var iterate = function iterate() {
iterator(arr[completed], function (err) {
if (err) {
callback(err);
callback = function callback() {};
} else {
completed += 1;
if (completed >= arr.length) {
callback();
} else {
iterate();
}
}
});
};
iterate();
};
async.forEachSeries = async.eachSeries; // AMD / RequireJS
if (typeof define !== 'undefined' && define.amd) {
define([], function () {
return async;
});
} // Node.js
else if (typeof module !== 'undefined' && module.exports) {
module.exports = async;
} // included directly via <script> tag
else {
root.async = async;
}
})();
},{"process":"pBGv"}],"3OWy":[function(require,module,exports) {
var FILE_SYSTEM_NAME = require('../constants.js').FILE_SYSTEM_NAME; // NOTE: prefer setImmediate to nextTick for proper recursion yielding.
// see https://github.com/js-platform/filer/pull/24
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var asyncCallback = require('../../lib/async.js').setImmediate;
/**
* Make shared in-memory DBs possible when using the same name.
*/
var createDB = function () {
var pool = {};
return function getOrCreate(name) {
if (!pool.hasOwnProperty(name)) {
pool[name] = {};
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}
return pool[name];
};
}();
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function MemoryContext(db, readOnly) {
this.readOnly = readOnly;
this.objectStore = db;
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}
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MemoryContext.prototype.clear = function (callback) {
if (this.readOnly) {
asyncCallback(function () {
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callback('[MemoryContext] Error: write operation on read only context');
});
return;
}
var objectStore = this.objectStore;
Object.keys(objectStore).forEach(function (key) {
delete objectStore[key];
});
asyncCallback(callback);
}; // Memory context doesn't care about differences between Object and Buffer
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MemoryContext.prototype.getObject = MemoryContext.prototype.getBuffer = function (key, callback) {
var that = this;
asyncCallback(function () {
callback(null, that.objectStore[key]);
});
};
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MemoryContext.prototype.putObject = MemoryContext.prototype.putBuffer = function (key, value, callback) {
if (this.readOnly) {
asyncCallback(function () {
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callback('[MemoryContext] Error: write operation on read only context');
});
return;
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}
this.objectStore[key] = value;
asyncCallback(callback);
};
MemoryContext.prototype.delete = function (key, callback) {
if (this.readOnly) {
asyncCallback(function () {
callback('[MemoryContext] Error: write operation on read only context');
});
return;
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}
delete this.objectStore[key];
asyncCallback(callback);
};
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function Memory(name) {
this.name = name || FILE_SYSTEM_NAME;
}
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Memory.isSupported = function () {
return true;
};
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Memory.prototype.open = function (callback) {
this.db = createDB(this.name);
asyncCallback(callback);
};
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Memory.prototype.getReadOnlyContext = function () {
return new MemoryContext(this.db, true);
};
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Memory.prototype.getReadWriteContext = function () {
return new MemoryContext(this.db, false);
};
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module.exports = Memory;
},{"../constants.js":"iJA9","../../lib/async.js":"u4Zs"}],"AiW7":[function(require,module,exports) {
var IndexedDB = require('./indexeddb.js');
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var WebSQL = require('./websql.js');
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var Memory = require('./memory.js');
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module.exports = {
IndexedDB: IndexedDB,
WebSQL: WebSQL,
Memory: Memory,
/**
* Convenience Provider references
*/
// The default provider to use when none is specified
Default: IndexedDB,
// The Fallback provider does automatic fallback checks
Fallback: function () {
if (IndexedDB.isSupported()) {
return IndexedDB;
}
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if (WebSQL.isSupported()) {
return WebSQL;
}
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function NotSupported() {
throw '[Filer Error] Your browser doesn\'t support IndexedDB or WebSQL.';
}
NotSupported.isSupported = function () {
return false;
};
return NotSupported;
}()
};
},{"./indexeddb.js":"QO4x","./websql.js":"hW+K","./memory.js":"3OWy"}],"QMiB":[function(require,module,exports) {
var defaults = require('../constants.js').ENVIRONMENT;
module.exports = function Environment(env) {
env = env || {};
env.TMP = env.TMP || defaults.TMP;
env.PATH = env.PATH || defaults.PATH;
this.get = function (name) {
return env[name];
};
this.set = function (name, value) {
env[name] = value;
};
};
},{"../constants.js":"iJA9"}],"bQx9":[function(require,module,exports) {
module.exports = function (xs, fn) {
var res = [];
for (var i = 0; i < xs.length; i++) {
var x = fn(xs[i], i);
if (isArray(x)) res.push.apply(res, x);
else res.push(x);
}
return res;
};
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var isArray = Array.isArray || function (xs) {
return Object.prototype.toString.call(xs) === '[object Array]';
};
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},{}],"6D9y":[function(require,module,exports) {
'use strict';
module.exports = balanced;
function balanced(a, b, str) {
if (a instanceof RegExp) a = maybeMatch(a, str);
if (b instanceof RegExp) b = maybeMatch(b, str);
var r = range(a, b, str);
return r && {
start: r[0],
end: r[1],
pre: str.slice(0, r[0]),
body: str.slice(r[0] + a.length, r[1]),
post: str.slice(r[1] + b.length)
};
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}
function maybeMatch(reg, str) {
var m = str.match(reg);
return m ? m[0] : null;
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}
balanced.range = range;
function range(a, b, str) {
var begs, beg, left, right, result;
var ai = str.indexOf(a);
var bi = str.indexOf(b, ai + 1);
var i = ai;
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if (ai >= 0 && bi > 0) {
begs = [];
left = str.length;
while (i >= 0 && !result) {
if (i == ai) {
begs.push(i);
ai = str.indexOf(a, i + 1);
} else if (begs.length == 1) {
result = [ begs.pop(), bi ];
} else {
beg = begs.pop();
if (beg < left) {
left = beg;
right = bi;
}
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bi = str.indexOf(b, i + 1);
}
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i = ai < bi && ai >= 0 ? ai : bi;
}
if (begs.length) {
result = [ left, right ];
}
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}
return result;
}
},{}],"dwX/":[function(require,module,exports) {
var concatMap = require('concat-map');
var balanced = require('balanced-match');
module.exports = expandTop;
var escSlash = '\0SLASH'+Math.random()+'\0';
var escOpen = '\0OPEN'+Math.random()+'\0';
var escClose = '\0CLOSE'+Math.random()+'\0';
var escComma = '\0COMMA'+Math.random()+'\0';
var escPeriod = '\0PERIOD'+Math.random()+'\0';
function numeric(str) {
return parseInt(str, 10) == str
? parseInt(str, 10)
: str.charCodeAt(0);
}
function escapeBraces(str) {
return str.split('\\\\').join(escSlash)
.split('\\{').join(escOpen)
.split('\\}').join(escClose)
.split('\\,').join(escComma)
.split('\\.').join(escPeriod);
}
function unescapeBraces(str) {
return str.split(escSlash).join('\\')
.split(escOpen).join('{')
.split(escClose).join('}')
.split(escComma).join(',')
.split(escPeriod).join('.');
}
// Basically just str.split(","), but handling cases
// where we have nested braced sections, which should be
// treated as individual members, like {a,{b,c},d}
function parseCommaParts(str) {
if (!str)
return [''];
var parts = [];
var m = balanced('{', '}', str);
if (!m)
return str.split(',');
var pre = m.pre;
var body = m.body;
var post = m.post;
var p = pre.split(',');
p[p.length-1] += '{' + body + '}';
var postParts = parseCommaParts(post);
if (post.length) {
p[p.length-1] += postParts.shift();
p.push.apply(p, postParts);
}
parts.push.apply(parts, p);
return parts;
}
function expandTop(str) {
if (!str)
return [];
// I don't know why Bash 4.3 does this, but it does.
// Anything starting with {} will have the first two bytes preserved
// but *only* at the top level, so {},a}b will not expand to anything,
// but a{},b}c will be expanded to [a}c,abc].
// One could argue that this is a bug in Bash, but since the goal of
// this module is to match Bash's rules, we escape a leading {}
if (str.substr(0, 2) === '{}') {
str = '\\{\\}' + str.substr(2);
}
return expand(escapeBraces(str), true).map(unescapeBraces);
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}
function identity(e) {
return e;
}
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function embrace(str) {
return '{' + str + '}';
}
function isPadded(el) {
return /^-?0\d/.test(el);
}
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function lte(i, y) {
return i <= y;
}
function gte(i, y) {
return i >= y;
}
function expand(str, isTop) {
var expansions = [];
var m = balanced('{', '}', str);
if (!m || /\$$/.test(m.pre)) return [str];
var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
var isSequence = isNumericSequence || isAlphaSequence;
var isOptions = m.body.indexOf(',') >= 0;
if (!isSequence && !isOptions) {
// {a},b}
if (m.post.match(/,.*\}/)) {
str = m.pre + '{' + m.body + escClose + m.post;
return expand(str);
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}
return [str];
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}
var n;
if (isSequence) {
n = m.body.split(/\.\./);
} else {
n = parseCommaParts(m.body);
if (n.length === 1) {
// x{{a,b}}y ==> x{a}y x{b}y
n = expand(n[0], false).map(embrace);
if (n.length === 1) {
var post = m.post.length
? expand(m.post, false)
: [''];
return post.map(function(p) {
return m.pre + n[0] + p;
});
}
}
}
// at this point, n is the parts, and we know it's not a comma set
// with a single entry.
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// no need to expand pre, since it is guaranteed to be free of brace-sets
var pre = m.pre;
var post = m.post.length
? expand(m.post, false)
: [''];
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var N;
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if (isSequence) {
var x = numeric(n[0]);
var y = numeric(n[1]);
var width = Math.max(n[0].length, n[1].length)
var incr = n.length == 3
? Math.abs(numeric(n[2]))
: 1;
var test = lte;
var reverse = y < x;
if (reverse) {
incr *= -1;
test = gte;
}
var pad = n.some(isPadded);
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N = [];
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for (var i = x; test(i, y); i += incr) {
var c;
if (isAlphaSequence) {
c = String.fromCharCode(i);
if (c === '\\')
c = '';
} else {
c = String(i);
if (pad) {
var need = width - c.length;
if (need > 0) {
var z = new Array(need + 1).join('0');
if (i < 0)
c = '-' + z + c.slice(1);
else
c = z + c;
}
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}
}
N.push(c);
}
} else {
N = concatMap(n, function(el) { return expand(el, false) });
}
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for (var j = 0; j < N.length; j++) {
for (var k = 0; k < post.length; k++) {
var expansion = pre + N[j] + post[k];
if (!isTop || isSequence || expansion)
expansions.push(expansion);
}
}
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return expansions;
}
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},{"concat-map":"bQx9","balanced-match":"6D9y"}],"Nt/K":[function(require,module,exports) {
module.exports = minimatch
minimatch.Minimatch = Minimatch
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var path = { sep: '/' }
try {
path = require('path')
} catch (er) {}
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var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
var expand = require('brace-expansion')
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var plTypes = {
'!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
'?': { open: '(?:', close: ')?' },
'+': { open: '(?:', close: ')+' },
'*': { open: '(?:', close: ')*' },
'@': { open: '(?:', close: ')' }
}
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// any single thing other than /
// don't need to escape / when using new RegExp()
var qmark = '[^/]'
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// * => any number of characters
var star = qmark + '*?'
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// ** when dots are allowed. Anything goes, except .. and .
// not (^ or / followed by one or two dots followed by $ or /),
// followed by anything, any number of times.
var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'
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// not a ^ or / followed by a dot,
// followed by anything, any number of times.
var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'
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// characters that need to be escaped in RegExp.
var reSpecials = charSet('().*{}+?[]^$\\!')
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// "abc" -> { a:true, b:true, c:true }
function charSet (s) {
return s.split('').reduce(function (set, c) {
set[c] = true
return set
}, {})
}
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// normalizes slashes.
var slashSplit = /\/+/
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minimatch.filter = filter
function filter (pattern, options) {
options = options || {}
return function (p, i, list) {
return minimatch(p, pattern, options)
}
}
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function ext (a, b) {
a = a || {}
b = b || {}
var t = {}
Object.keys(b).forEach(function (k) {
t[k] = b[k]
})
Object.keys(a).forEach(function (k) {
t[k] = a[k]
})
return t
}
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minimatch.defaults = function (def) {
if (!def || !Object.keys(def).length) return minimatch
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var orig = minimatch
var m = function minimatch (p, pattern, options) {
return orig.minimatch(p, pattern, ext(def, options))
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}
m.Minimatch = function Minimatch (pattern, options) {
return new orig.Minimatch(pattern, ext(def, options))
}
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return m
}
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Minimatch.defaults = function (def) {
if (!def || !Object.keys(def).length) return Minimatch
return minimatch.defaults(def).Minimatch
}
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function minimatch (p, pattern, options) {
if (typeof pattern !== 'string') {
throw new TypeError('glob pattern string required')
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}
if (!options) options = {}
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// shortcut: comments match nothing.
if (!options.nocomment && pattern.charAt(0) === '#') {
return false
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}
// "" only matches ""
if (pattern.trim() === '') return p === ''
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return new Minimatch(pattern, options).match(p)
}
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function Minimatch (pattern, options) {
if (!(this instanceof Minimatch)) {
return new Minimatch(pattern, options)
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}
if (typeof pattern !== 'string') {
throw new TypeError('glob pattern string required')
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}
if (!options) options = {}
pattern = pattern.trim()
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// windows support: need to use /, not \
if (path.sep !== '/') {
pattern = pattern.split(path.sep).join('/')
}
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this.options = options
this.set = []
this.pattern = pattern
this.regexp = null
this.negate = false
this.comment = false
this.empty = false
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// make the set of regexps etc.
this.make()
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}
Minimatch.prototype.debug = function () {}
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Minimatch.prototype.make = make
function make () {
// don't do it more than once.
if (this._made) return
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var pattern = this.pattern
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var options = this.options
// empty patterns and comments match nothing.
if (!options.nocomment && pattern.charAt(0) === '#') {
this.comment = true
return
}
if (!pattern) {
this.empty = true
return
}
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// step 1: figure out negation, etc.
this.parseNegate()
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// step 2: expand braces
var set = this.globSet = this.braceExpand()
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if (options.debug) this.debug = console.error
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this.debug(this.pattern, set)
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// step 3: now we have a set, so turn each one into a series of path-portion
// matching patterns.
// These will be regexps, except in the case of "**", which is
// set to the GLOBSTAR object for globstar behavior,
// and will not contain any / characters
set = this.globParts = set.map(function (s) {
return s.split(slashSplit)
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})
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this.debug(this.pattern, set)
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// glob --> regexps
set = set.map(function (s, si, set) {
return s.map(this.parse, this)
}, this)
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this.debug(this.pattern, set)
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// filter out everything that didn't compile properly.
set = set.filter(function (s) {
return s.indexOf(false) === -1
})
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this.debug(this.pattern, set)
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this.set = set
}
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Minimatch.prototype.parseNegate = parseNegate
function parseNegate () {
var pattern = this.pattern
var negate = false
var options = this.options
var negateOffset = 0
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if (options.nonegate) return
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for (var i = 0, l = pattern.length
; i < l && pattern.charAt(i) === '!'
; i++) {
negate = !negate
negateOffset++
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}
if (negateOffset) this.pattern = pattern.substr(negateOffset)
this.negate = negate
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}
// Brace expansion:
// a{b,c}d -> abd acd
// a{b,}c -> abc ac
// a{0..3}d -> a0d a1d a2d a3d
// a{b,c{d,e}f}g -> abg acdfg acefg
// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
//
// Invalid sets are not expanded.
// a{2..}b -> a{2..}b
// a{b}c -> a{b}c
minimatch.braceExpand = function (pattern, options) {
return braceExpand(pattern, options)
}
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Minimatch.prototype.braceExpand = braceExpand
function braceExpand (pattern, options) {
if (!options) {
if (this instanceof Minimatch) {
options = this.options
} else {
options = {}
}
}
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pattern = typeof pattern === 'undefined'
? this.pattern : pattern
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if (typeof pattern === 'undefined') {
throw new TypeError('undefined pattern')
}
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if (options.nobrace ||
!pattern.match(/\{.*\}/)) {
// shortcut. no need to expand.
return [pattern]
}
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return expand(pattern)
}
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// parse a component of the expanded set.
// At this point, no pattern may contain "/" in it
// so we're going to return a 2d array, where each entry is the full
// pattern, split on '/', and then turned into a regular expression.
// A regexp is made at the end which joins each array with an
// escaped /, and another full one which joins each regexp with |.
//
// Following the lead of Bash 4.1, note that "**" only has special meaning
// when it is the *only* thing in a path portion. Otherwise, any series
// of * is equivalent to a single *. Globstar behavior is enabled by
// default, and can be disabled by setting options.noglobstar.
Minimatch.prototype.parse = parse
var SUBPARSE = {}
function parse (pattern, isSub) {
if (pattern.length > 1024 * 64) {
throw new TypeError('pattern is too long')
}
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var options = this.options
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// shortcuts
if (!options.noglobstar && pattern === '**') return GLOBSTAR
if (pattern === '') return ''
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var re = ''
var hasMagic = !!options.nocase
var escaping = false
// ? => one single character
var patternListStack = []
var negativeLists = []
var stateChar
var inClass = false
var reClassStart = -1
var classStart = -1
// . and .. never match anything that doesn't start with .,
// even when options.dot is set.
var patternStart = pattern.charAt(0) === '.' ? '' // anything
// not (start or / followed by . or .. followed by / or end)
: options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
: '(?!\\.)'
var self = this
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function clearStateChar () {
if (stateChar) {
// we had some state-tracking character
// that wasn't consumed by this pass.
switch (stateChar) {
case '*':
re += star
hasMagic = true
break
case '?':
re += qmark
hasMagic = true
break
default:
re += '\\' + stateChar
break
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}
self.debug('clearStateChar %j %j', stateChar, re)
stateChar = false
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}
}
for (var i = 0, len = pattern.length, c
; (i < len) && (c = pattern.charAt(i))
; i++) {
this.debug('%s\t%s %s %j', pattern, i, re, c)
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// skip over any that are escaped.
if (escaping && reSpecials[c]) {
re += '\\' + c
escaping = false
continue
}
switch (c) {
case '/':
// completely not allowed, even escaped.
// Should already be path-split by now.
return false
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case '\\':
clearStateChar()
escaping = true
continue
// the various stateChar values
// for the "extglob" stuff.
case '?':
case '*':
case '+':
case '@':
case '!':
this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)
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// all of those are literals inside a class, except that
// the glob [!a] means [^a] in regexp
if (inClass) {
this.debug(' in class')
if (c === '!' && i === classStart + 1) c = '^'
re += c
continue
}
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// if we already have a stateChar, then it means
// that there was something like ** or +? in there.
// Handle the stateChar, then proceed with this one.
self.debug('call clearStateChar %j', stateChar)
clearStateChar()
stateChar = c
// if extglob is disabled, then +(asdf|foo) isn't a thing.
// just clear the statechar *now*, rather than even diving into
// the patternList stuff.
if (options.noext) clearStateChar()
continue
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case '(':
if (inClass) {
re += '('
continue
}
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if (!stateChar) {
re += '\\('
continue
}
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patternListStack.push({
type: stateChar,
start: i - 1,
reStart: re.length,
open: plTypes[stateChar].open,
close: plTypes[stateChar].close
})
// negation is (?:(?!js)[^/]*)
re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
this.debug('plType %j %j', stateChar, re)
stateChar = false
continue
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case ')':
if (inClass || !patternListStack.length) {
re += '\\)'
continue
}
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clearStateChar()
hasMagic = true
var pl = patternListStack.pop()
// negation is (?:(?!js)[^/]*)
// The others are (?:<pattern>)<type>
re += pl.close
if (pl.type === '!') {
negativeLists.push(pl)
}
pl.reEnd = re.length
continue
case '|':
if (inClass || !patternListStack.length || escaping) {
re += '\\|'
escaping = false
continue
}
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clearStateChar()
re += '|'
continue
// these are mostly the same in regexp and glob
case '[':
// swallow any state-tracking char before the [
clearStateChar()
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if (inClass) {
re += '\\' + c
continue
}
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inClass = true
classStart = i
reClassStart = re.length
re += c
continue
case ']':
// a right bracket shall lose its special
// meaning and represent itself in
// a bracket expression if it occurs
// first in the list. -- POSIX.2 2.8.3.2
if (i === classStart + 1 || !inClass) {
re += '\\' + c
escaping = false
continue
}
// handle the case where we left a class open.
// "[z-a]" is valid, equivalent to "\[z-a\]"
if (inClass) {
// split where the last [ was, make sure we don't have
// an invalid re. if so, re-walk the contents of the
// would-be class to re-translate any characters that
// were passed through as-is
// TODO: It would probably be faster to determine this
// without a try/catch and a new RegExp, but it's tricky
// to do safely. For now, this is safe and works.
var cs = pattern.substring(classStart + 1, i)
try {
RegExp('[' + cs + ']')
} catch (er) {
// not a valid class!
var sp = this.parse(cs, SUBPARSE)
re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
hasMagic = hasMagic || sp[1]
inClass = false
continue
}
}
// finish up the class.
hasMagic = true
inClass = false
re += c
continue
default:
// swallow any state char that wasn't consumed
clearStateChar()
if (escaping) {
// no need
escaping = false
} else if (reSpecials[c]
&& !(c === '^' && inClass)) {
re += '\\'
}
re += c
} // switch
} // for
// handle the case where we left a class open.
// "[abc" is valid, equivalent to "\[abc"
if (inClass) {
// split where the last [ was, and escape it
// this is a huge pita. We now have to re-walk
// the contents of the would-be class to re-translate
// any characters that were passed through as-is
cs = pattern.substr(classStart + 1)
sp = this.parse(cs, SUBPARSE)
re = re.substr(0, reClassStart) + '\\[' + sp[0]
hasMagic = hasMagic || sp[1]
}
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// handle the case where we had a +( thing at the *end*
// of the pattern.
// each pattern list stack adds 3 chars, and we need to go through
// and escape any | chars that were passed through as-is for the regexp.
// Go through and escape them, taking care not to double-escape any
// | chars that were already escaped.
for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
var tail = re.slice(pl.reStart + pl.open.length)
this.debug('setting tail', re, pl)
// maybe some even number of \, then maybe 1 \, followed by a |
tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
if (!$2) {
// the | isn't already escaped, so escape it.
$2 = '\\'
}
// need to escape all those slashes *again*, without escaping the
// one that we need for escaping the | character. As it works out,
// escaping an even number of slashes can be done by simply repeating
// it exactly after itself. That's why this trick works.
//
// I am sorry that you have to see this.
return $1 + $1 + $2 + '|'
})
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this.debug('tail=%j\n %s', tail, tail, pl, re)
var t = pl.type === '*' ? star
: pl.type === '?' ? qmark
: '\\' + pl.type
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hasMagic = true
re = re.slice(0, pl.reStart) + t + '\\(' + tail
}
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// handle trailing things that only matter at the very end.
clearStateChar()
if (escaping) {
// trailing \\
re += '\\\\'
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}
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// only need to apply the nodot start if the re starts with
// something that could conceivably capture a dot
var addPatternStart = false
switch (re.charAt(0)) {
case '.':
case '[':
case '(': addPatternStart = true
}
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// Hack to work around lack of negative lookbehind in JS
// A pattern like: *.!(x).!(y|z) needs to ensure that a name
// like 'a.xyz.yz' doesn't match. So, the first negative
// lookahead, has to look ALL the way ahead, to the end of
// the pattern.
for (var n = negativeLists.length - 1; n > -1; n--) {
var nl = negativeLists[n]
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var nlBefore = re.slice(0, nl.reStart)
var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
var nlAfter = re.slice(nl.reEnd)
nlLast += nlAfter
// Handle nested stuff like *(*.js|!(*.json)), where open parens
// mean that we should *not* include the ) in the bit that is considered
// "after" the negated section.
var openParensBefore = nlBefore.split('(').length - 1
var cleanAfter = nlAfter
for (i = 0; i < openParensBefore; i++) {
cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
}
nlAfter = cleanAfter
var dollar = ''
if (nlAfter === '' && isSub !== SUBPARSE) {
dollar = '$'
}
var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
re = newRe
}
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// if the re is not "" at this point, then we need to make sure
// it doesn't match against an empty path part.
// Otherwise a/* will match a/, which it should not.
if (re !== '' && hasMagic) {
re = '(?=.)' + re
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}
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if (addPatternStart) {
re = patternStart + re
}
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// parsing just a piece of a larger pattern.
if (isSub === SUBPARSE) {
return [re, hasMagic]
}
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// skip the regexp for non-magical patterns
// unescape anything in it, though, so that it'll be
// an exact match against a file etc.
if (!hasMagic) {
return globUnescape(pattern)
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}
var flags = options.nocase ? 'i' : ''
try {
var regExp = new RegExp('^' + re + '$', flags)
} catch (er) {
// If it was an invalid regular expression, then it can't match
// anything. This trick looks for a character after the end of
// the string, which is of course impossible, except in multi-line
// mode, but it's not a /m regex.
return new RegExp('$.')
}
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regExp._glob = pattern
regExp._src = re
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return regExp
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}
minimatch.makeRe = function (pattern, options) {
return new Minimatch(pattern, options || {}).makeRe()
}
Minimatch.prototype.makeRe = makeRe
function makeRe () {
if (this.regexp || this.regexp === false) return this.regexp
// at this point, this.set is a 2d array of partial
// pattern strings, or "**".
//
// It's better to use .match(). This function shouldn't
// be used, really, but it's pretty convenient sometimes,
// when you just want to work with a regex.
var set = this.set
if (!set.length) {
this.regexp = false
return this.regexp
}
var options = this.options
var twoStar = options.noglobstar ? star
: options.dot ? twoStarDot
: twoStarNoDot
var flags = options.nocase ? 'i' : ''
var re = set.map(function (pattern) {
return pattern.map(function (p) {
return (p === GLOBSTAR) ? twoStar
: (typeof p === 'string') ? regExpEscape(p)
: p._src
}).join('\\\/')
}).join('|')
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// must match entire pattern
// ending in a * or ** will make it less strict.
re = '^(?:' + re + ')$'
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// can match anything, as long as it's not this.
if (this.negate) re = '^(?!' + re + ').*$'
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try {
this.regexp = new RegExp(re, flags)
} catch (ex) {
this.regexp = false
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}
return this.regexp
}
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minimatch.match = function (list, pattern, options) {
options = options || {}
var mm = new Minimatch(pattern, options)
list = list.filter(function (f) {
return mm.match(f)
})
if (mm.options.nonull && !list.length) {
list.push(pattern)
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}
return list
}
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Minimatch.prototype.match = match
function match (f, partial) {
this.debug('match', f, this.pattern)
// short-circuit in the case of busted things.
// comments, etc.
if (this.comment) return false
if (this.empty) return f === ''
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if (f === '/' && partial) return true
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var options = this.options
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// windows: need to use /, not \
if (path.sep !== '/') {
f = f.split(path.sep).join('/')
}
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// treat the test path as a set of pathparts.
f = f.split(slashSplit)
this.debug(this.pattern, 'split', f)
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// just ONE of the pattern sets in this.set needs to match
// in order for it to be valid. If negating, then just one
// match means that we have failed.
// Either way, return on the first hit.
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var set = this.set
this.debug(this.pattern, 'set', set)
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// Find the basename of the path by looking for the last non-empty segment
var filename
var i
for (i = f.length - 1; i >= 0; i--) {
filename = f[i]
if (filename) break
}
for (i = 0; i < set.length; i++) {
var pattern = set[i]
var file = f
if (options.matchBase && pattern.length === 1) {
file = [filename]
}
var hit = this.matchOne(file, pattern, partial)
if (hit) {
if (options.flipNegate) return true
return !this.negate
}
}
// didn't get any hits. this is success if it's a negative
// pattern, failure otherwise.
if (options.flipNegate) return false
return this.negate
}
// set partial to true to test if, for example,
// "/a/b" matches the start of "/*/b/*/d"
// Partial means, if you run out of file before you run
// out of pattern, then that's fine, as long as all
// the parts match.
Minimatch.prototype.matchOne = function (file, pattern, partial) {
var options = this.options
this.debug('matchOne',
{ 'this': this, file: file, pattern: pattern })
this.debug('matchOne', file.length, pattern.length)
for (var fi = 0,
pi = 0,
fl = file.length,
pl = pattern.length
; (fi < fl) && (pi < pl)
; fi++, pi++) {
this.debug('matchOne loop')
var p = pattern[pi]
var f = file[fi]
this.debug(pattern, p, f)
// should be impossible.
// some invalid regexp stuff in the set.
if (p === false) return false
if (p === GLOBSTAR) {
this.debug('GLOBSTAR', [pattern, p, f])
// "**"
// a/**/b/**/c would match the following:
// a/b/x/y/z/c
// a/x/y/z/b/c
// a/b/x/b/x/c
// a/b/c
// To do this, take the rest of the pattern after
// the **, and see if it would match the file remainder.
// If so, return success.
// If not, the ** "swallows" a segment, and try again.
// This is recursively awful.
//
// a/**/b/**/c matching a/b/x/y/z/c
// - a matches a
// - doublestar
// - matchOne(b/x/y/z/c, b/**/c)
// - b matches b
// - doublestar
// - matchOne(x/y/z/c, c) -> no
// - matchOne(y/z/c, c) -> no
// - matchOne(z/c, c) -> no
// - matchOne(c, c) yes, hit
var fr = fi
var pr = pi + 1
if (pr === pl) {
this.debug('** at the end')
// a ** at the end will just swallow the rest.
// We have found a match.
// however, it will not swallow /.x, unless
// options.dot is set.
// . and .. are *never* matched by **, for explosively
// exponential reasons.
for (; fi < fl; fi++) {
if (file[fi] === '.' || file[fi] === '..' ||
(!options.dot && file[fi].charAt(0) === '.')) return false
}
return true
}
// ok, let's see if we can swallow whatever we can.
while (fr < fl) {
var swallowee = file[fr]
this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)
// XXX remove this slice. Just pass the start index.
if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
this.debug('globstar found match!', fr, fl, swallowee)
// found a match.
return true
} else {
// can't swallow "." or ".." ever.
// can only swallow ".foo" when explicitly asked.
if (swallowee === '.' || swallowee === '..' ||
(!options.dot && swallowee.charAt(0) === '.')) {
this.debug('dot detected!', file, fr, pattern, pr)
break
}
// ** swallows a segment, and continue.
this.debug('globstar swallow a segment, and continue')
fr++
}
}
// no match was found.
// However, in partial mode, we can't say this is necessarily over.
// If there's more *pattern* left, then
if (partial) {
// ran out of file
this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
if (fr === fl) return true
}
return false
}
// something other than **
// non-magic patterns just have to match exactly
// patterns with magic have been turned into regexps.
var hit
if (typeof p === 'string') {
if (options.nocase) {
hit = f.toLowerCase() === p.toLowerCase()
} else {
hit = f === p
}
this.debug('string match', p, f, hit)
} else {
hit = f.match(p)
this.debug('pattern match', p, f, hit)
}
if (!hit) return false
}
// Note: ending in / means that we'll get a final ""
// at the end of the pattern. This can only match a
// corresponding "" at the end of the file.
// If the file ends in /, then it can only match a
// a pattern that ends in /, unless the pattern just
// doesn't have any more for it. But, a/b/ should *not*
// match "a/b/*", even though "" matches against the
// [^/]*? pattern, except in partial mode, where it might
// simply not be reached yet.
// However, a/b/ should still satisfy a/*
// now either we fell off the end of the pattern, or we're done.
if (fi === fl && pi === pl) {
// ran out of pattern and filename at the same time.
// an exact hit!
return true
} else if (fi === fl) {
// ran out of file, but still had pattern left.
// this is ok if we're doing the match as part of
// a glob fs traversal.
return partial
} else if (pi === pl) {
// ran out of pattern, still have file left.
// this is only acceptable if we're on the very last
// empty segment of a file with a trailing slash.
// a/* should match a/b/
var emptyFileEnd = (fi === fl - 1) && (file[fi] === '')
return emptyFileEnd
}
// should be unreachable.
throw new Error('wtf?')
}
// replace stuff like \* with *
function globUnescape (s) {
return s.replace(/\\(.)/g, '$1')
}
function regExpEscape (s) {
return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
}
},{"path":"UUq2","brace-expansion":"dwX/"}],"D1Ra":[function(require,module,exports) {
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var _require = require('es6-promisify'),
promisify = _require.promisify;
var Path = require('../path.js');
var Errors = require('../errors.js');
var Environment = require('./environment.js');
var async = require('../../lib/async.js');
var minimatch = require('minimatch');
function Shell(fs, options) {
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var _this = this;
options = options || {};
var env = new Environment(options.env);
var cwd = '/';
/**
* The bound FileSystem (cannot be changed)
*/
Object.defineProperty(this, 'fs', {
get: function get() {
return fs;
},
enumerable: true
});
/**
* The shell's environment (e.g., for things like
* path, tmp, and other env vars). Use env.get()
* and env.set() to work with variables.
*/
Object.defineProperty(this, 'env', {
get: function get() {
return env;
},
enumerable: true
});
/**
* Change the current working directory. We
* include `cd` on the `this` vs. proto so that
* we can access cwd without exposing it externally.
*/
this.cd = function (path, callback) {
path = Path.resolve(cwd, path); // Make sure the path actually exists, and is a dir
fs.stat(path, function (err, stats) {
if (err) {
callback(new Errors.ENOTDIR(null, path));
return;
}
if (stats.type === 'DIRECTORY') {
cwd = path;
callback();
} else {
callback(new Errors.ENOTDIR(null, path));
}
});
};
/**
* Get the current working directory (changed with `cd()`)
*/
this.pwd = function () {
return cwd;
};
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this.promises = {};
/**
* Public API for Shell converted to Promise based
*/
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['cd', 'exec', 'touch', 'cat', 'ls', 'rm', 'tempDir', 'mkdirp', 'find'].forEach(function (methodName) {
_this.promises[methodName] = promisify(_this[methodName].bind(_this));
});
}
/**
* Execute the .js command located at `path`. Such commands
* should assume the existence of 3 arguments, which will be
* defined at runtime:
*
* * fs - the current shell's bound filesystem object
* * args - a list of arguments for the command, or an empty list if none
* * callback - a callback function(error, result) to call when done.
*
* The .js command's contents should be the body of a function
* that looks like this:
*
* function(fs, args, callback) {
* // .js code here
* }
*/
Shell.prototype.exec = function (path, args, callback) {
/* jshint evil:true */
var sh = this;
var fs = sh.fs;
if (typeof args === 'function') {
callback = args;
args = [];
}
args = args || [];
callback = callback || function () {};
path = Path.resolve(sh.pwd(), path);
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fs.readFile(path, 'utf8', function (error, data) {
if (error) {
callback(error);
return;
}
try {
var cmd = new Function('fs', 'args', 'callback', data);
cmd(fs, args, callback);
} catch (e) {
callback(e);
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}
});
};
/**
* Create a file if it does not exist, or update access and
* modified times if it does. Valid options include:
*
* * updateOnly - whether to create the file if missing (defaults to false)
* * date - use the provided Date value instead of current date/time
*/
Shell.prototype.touch = function (path, options, callback) {
var sh = this;
var fs = sh.fs;
if (typeof options === 'function') {
callback = options;
options = {};
}
options = options || {};
callback = callback || function () {};
path = Path.resolve(sh.pwd(), path);
function createFile(path) {
fs.writeFile(path, '', callback);
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}
function updateTimes(path) {
var now = Date.now();
var atime = options.date || now;
var mtime = options.date || now;
fs.utimes(path, atime, mtime, callback);
}
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fs.stat(path, function (error) {
if (error) {
if (options.updateOnly === true) {
callback();
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} else {
createFile(path);
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}
} else {
updateTimes(path);
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}
});
};
/**
* Concatenate multiple files into a single String, with each
* file separated by a newline. The `files` argument should
* be a String (path to single file) or an Array of Strings
* (multiple file paths).
*/
Shell.prototype.cat = function (files, callback) {
var sh = this;
var fs = sh.fs;
var all = '';
callback = callback || function () {};
if (!files) {
callback(new Errors.EINVAL('Missing files argument'));
return;
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}
files = typeof files === 'string' ? [files] : files;
function append(item, callback) {
var filename = Path.resolve(sh.pwd(), item);
fs.readFile(filename, 'utf8', function (error, data) {
if (error) {
callback(error);
return;
}
all += data + '\n';
callback();
});
}
async.eachSeries(files, append, function (error) {
if (error) {
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callback(error);
} else {
callback(null, all.replace(/\n$/, ''));
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}
});
};
/**
* Get the listing of a directory, returning an array of
* file entries in the following form:
*
* {
* path: <String> the basename of the directory entry
* links: <Number> the number of links to the entry
* size: <Number> the size in bytes of the entry
* modified: <Number> the last modified date/time
* type: <String> the type of the entry
* contents: <Array> an optional array of child entries
* }
*
* By default ls() gives a shallow listing. If you want
* to follow directories as they are encountered, use
* the `recursive=true` option.
*/
Shell.prototype.ls = function (dir, options, callback) {
var sh = this;
var fs = sh.fs;
if (typeof options === 'function') {
callback = options;
options = {};
}
options = options || {};
callback = callback || function () {};
if (!dir) {
callback(new Errors.EINVAL('Missing dir argument'));
return;
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}
function list(path, callback) {
var pathname = Path.resolve(sh.pwd(), path);
var result = [];
fs.readdir(pathname, function (error, entries) {
if (error) {
callback(error);
return;
}
function getDirEntry(name, callback) {
name = Path.join(pathname, name);
fs.stat(name, function (error, stats) {
if (error) {
callback(error);
return;
}
var entry = stats;
if (options.recursive && stats.type === 'DIRECTORY') {
list(Path.join(pathname, entry.name), function (error, items) {
if (error) {
callback(error);
return;
}
entry.contents = items;
result.push(entry);
callback();
});
} else {
result.push(entry);
callback();
}
});
}
async.eachSeries(entries, getDirEntry, function (error) {
callback(error, result);
});
});
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}
list(dir, callback);
};
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/**
* Removes the file or directory at `path`. If `path` is a file
* it will be removed. If `path` is a directory, it will be
* removed if it is empty, otherwise the callback will receive
* an error. In order to remove non-empty directories, use the
* `recursive=true` option.
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*/
Shell.prototype.rm = function (path, options, callback) {
var sh = this;
var fs = sh.fs;
if (typeof options === 'function') {
callback = options;
options = {};
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}
options = options || {};
callback = callback || function () {};
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if (!path) {
callback(new Errors.EINVAL('Missing path argument'));
return;
}
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function remove(pathname, callback) {
pathname = Path.resolve(sh.pwd(), pathname);
fs.stat(pathname, function (error, stats) {
if (error) {
callback(error);
return;
} // If this is a file, delete it and we're done
if (stats.type === 'FILE') {
fs.unlink(pathname, callback);
return;
} // If it's a dir, check if it's empty
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fs.readdir(pathname, function (error, entries) {
if (error) {
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callback(error);
return;
} // If dir is empty, delete it and we're done
if (entries.length === 0) {
fs.rmdir(pathname, callback);
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return;
} // If not, see if we're allowed to delete recursively
if (!options.recursive) {
callback(new Errors.ENOTEMPTY(null, pathname));
return;
} // Remove each dir entry recursively, then delete the dir.
entries = entries.map(function (filename) {
// Root dir entries absolutely
return Path.join(pathname, filename);
});
async.eachSeries(entries, remove, function (error) {
if (error) {
callback(error);
return;
}
fs.rmdir(pathname, callback);
});
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});
});
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}
remove(path, callback);
};
/**
* Gets the path to the temporary directory, creating it if not
* present. The directory used is the one specified in
* env.TMP. The callback receives (error, tempDirName).
*/
Shell.prototype.tempDir = function (callback) {
var sh = this;
var fs = sh.fs;
var tmp = sh.env.get('TMP');
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callback = callback || function () {}; // Try and create it, and it will either work or fail
// but either way it's now there.
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fs.mkdir(tmp, function () {
callback(null, tmp);
});
};
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/**
* Recursively creates the directory at `path`. If the parent
* of `path` does not exist, it will be created.
* Based off EnsureDir by Sam X. Xu
* https://www.npmjs.org/package/ensureDir
* MIT License
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*/
Shell.prototype.mkdirp = function (path, callback) {
var sh = this;
var fs = sh.fs;
callback = callback || function () {};
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if (!path) {
callback(new Errors.EINVAL('Missing path argument'));
return;
} else if (path === '/') {
callback();
return;
}
function _mkdirp(path, callback) {
fs.stat(path, function (err, stat) {
if (stat) {
if (stat.isDirectory()) {
callback();
return;
} else if (stat.isFile()) {
callback(new Errors.ENOTDIR(null, path));
return;
}
} else if (err && err.code !== 'ENOENT') {
callback(err);
return;
} else {
var parent = Path.dirname(path);
if (parent === '/') {
fs.mkdir(path, function (err) {
if (err && err.code !== 'EEXIST') {
callback(err);
return;
}
callback();
return;
});
} else {
_mkdirp(parent, function (err) {
if (err) return callback(err);
fs.mkdir(path, function (err) {
if (err && err.code !== 'EEXIST') {
callback(err);
return;
}
callback();
return;
});
});
}
}
});
}
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_mkdirp(path, callback);
};
/**
* Recursively walk a directory tree, reporting back all paths
* that were found along the way. The `path` must be a dir.
* Valid options include a `regex` for pattern matching paths
* and an `exec` function of the form `function(path, next)` where
* `path` is the current path that was found (dir paths have an '/'
* appended) and `next` is a callback to call when done processing
* the current path, passing any error object back as the first argument.
* `find` returns a flat array of absolute paths for all matching/found
* paths as the final argument to the callback.
*/
Shell.prototype.find = function (path, options, callback) {
var sh = this;
var fs = sh.fs;
if (typeof options === 'function') {
callback = options;
options = {};
}
options = options || {};
callback = callback || function () {};
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var exec = options.exec || function (path, next) {
next();
};
var found = [];
if (!path) {
callback(new Errors.EINVAL('Missing path argument'));
return;
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}
function processPath(path, callback) {
exec(path, function (err) {
if (err) {
callback(err);
return;
}
found.push(path);
callback();
});
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}
function maybeProcessPath(path, callback) {
// Test the path against the user's regex, name, path primaries (if any)
// and remove any trailing slashes added previously.
var rawPath = Path.removeTrailing(path); // Check entire path against provided regex, if any
if (options.regex && !options.regex.test(rawPath)) {
callback();
return;
} // Check basename for matches against name primary, if any
if (options.name && !minimatch(Path.basename(rawPath), options.name)) {
callback();
return;
} // Check dirname for matches against path primary, if any
if (options.path && !minimatch(Path.dirname(rawPath), options.path)) {
callback();
return;
}
processPath(path, callback);
}
function walk(path, callback) {
path = Path.resolve(sh.pwd(), path); // The path is either a file or dir, and instead of doing
// a stat() to determine it first, we just try to readdir()
// and it will either work or not, and we handle the non-dir error.
fs.readdir(path, function (err, entries) {
if (err) {
if (err.code === 'ENOTDIR'
/* file case, ignore error */
) {
maybeProcessPath(path, callback);
} else {
callback(err);
}
return;
} // Path is really a dir, add a trailing / and report it found
maybeProcessPath(Path.addTrailing(path), function (err) {
if (err) {
callback(err);
return;
}
entries = entries.map(function (entry) {
return Path.join(path, entry);
});
async.eachSeries(entries, walk, function (err) {
callback(err, found);
});
});
});
} // Make sure we are starting with a dir path
fs.stat(path, function (err, stats) {
if (err) {
callback(err);
return;
}
if (!stats.isDirectory()) {
callback(new Errors.ENOTDIR(null, path));
return;
}
walk(path, callback);
});
};
module.exports = Shell;
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},{"es6-promisify":"0c0E","../path.js":"UzoP","../errors.js":"p8GN","./environment.js":"QMiB","../../lib/async.js":"u4Zs","minimatch":"Nt/K"}],"J4Qg":[function(require,module,exports) {
// Based on https://github.com/diy/intercom.js/blob/master/lib/events.js
// Copyright 2012 DIY Co Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
function removeItem(item, array) {
for (var i = array.length - 1; i >= 0; i--) {
if (array[i] === item) {
array.splice(i, 1);
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}
}
return array;
}
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var EventEmitter = function EventEmitter() {};
EventEmitter.createInterface = function (space) {
var methods = {};
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methods.on = function (name, fn) {
if (typeof this[space] === 'undefined') {
this[space] = {};
}
if (!this[space].hasOwnProperty(name)) {
this[space][name] = [];
}
this[space][name].push(fn);
};
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methods.off = function (name, fn) {
if (typeof this[space] === 'undefined') return;
if (this[space].hasOwnProperty(name)) {
removeItem(fn, this[space][name]);
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}
};
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methods.trigger = function (name) {
if (typeof this[space] !== 'undefined' && this[space].hasOwnProperty(name)) {
var args = Array.prototype.slice.call(arguments, 1);
for (var i = 0; i < this[space][name].length; i++) {
this[space][name][i].apply(this[space][name][i], args);
}
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}
};
methods.removeAllListeners = function (name) {
if (typeof this[space] === 'undefined') return;
var self = this;
self[space][name].forEach(function (fn) {
self.off(name, fn);
});
};
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return methods;
};
var pvt = EventEmitter.createInterface('_handlers');
EventEmitter.prototype._on = pvt.on;
EventEmitter.prototype._off = pvt.off;
EventEmitter.prototype._trigger = pvt.trigger;
var pub = EventEmitter.createInterface('handlers');
EventEmitter.prototype.on = function () {
pub.on.apply(this, arguments);
Array.prototype.unshift.call(arguments, 'on');
this._trigger.apply(this, arguments);
};
EventEmitter.prototype.off = pub.off;
EventEmitter.prototype.trigger = pub.trigger;
EventEmitter.prototype.removeAllListeners = pub.removeAllListeners;
module.exports = EventEmitter;
},{}],"u7Jv":[function(require,module,exports) {
var global = arguments[3];
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
// Based on https://github.com/diy/intercom.js/blob/master/lib/intercom.js
// Copyright 2012 DIY Co Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
var EventEmitter = require('./eventemitter.js');
var guid = require('../src/shared.js').guid;
function throttle(delay, fn) {
var last = 0;
return function () {
var now = Date.now();
if (now - last > delay) {
last = now;
fn.apply(this, arguments);
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}
};
}
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function extend(a, b) {
if (typeof a === 'undefined' || !a) {
a = {};
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}
if (_typeof(b) === 'object') {
for (var key in b) {
if (b.hasOwnProperty(key)) {
a[key] = b[key];
}
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}
}
return a;
}
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var localStorage = function (window) {
if (typeof window === 'undefined' || typeof window.localStorage === 'undefined') {
return {
getItem: function getItem() {},
setItem: function setItem() {},
removeItem: function removeItem() {}
};
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}
return window.localStorage;
}(global);
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function Intercom() {
var self = this;
var now = Date.now();
this.origin = guid();
this.lastMessage = now;
this.receivedIDs = {};
this.previousValues = {};
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var storageHandler = function storageHandler() {
self._onStorageEvent.apply(self, arguments);
}; // If we're in node.js, skip event registration
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if (typeof document === 'undefined') {
return;
}
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if (document.attachEvent) {
document.attachEvent('onstorage', storageHandler);
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} else {
global.addEventListener('storage', storageHandler, false);
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}
}
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Intercom.prototype._transaction = function (fn) {
var TIMEOUT = 1000;
var WAIT = 20;
var self = this;
var executed = false;
var listening = false;
var waitTimer = null;
function lock() {
if (executed) {
return;
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}
var now = Date.now();
var activeLock = localStorage.getItem(INDEX_LOCK) | 0;
if (activeLock && now - activeLock < TIMEOUT) {
if (!listening) {
self._on('storage', lock);
listening = true;
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}
waitTimer = setTimeout(lock, WAIT);
return;
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}
executed = true;
localStorage.setItem(INDEX_LOCK, now);
fn();
unlock();
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}
function unlock() {
if (listening) {
self._off('storage', lock);
}
if (waitTimer) {
clearTimeout(waitTimer);
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}
localStorage.removeItem(INDEX_LOCK);
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}
lock();
};
Intercom.prototype._cleanup_emit = throttle(100, function () {
var self = this;
self._transaction(function () {
var now = Date.now();
var threshold = now - THRESHOLD_TTL_EMIT;
var changed = 0;
var messages;
try {
messages = JSON.parse(localStorage.getItem(INDEX_EMIT) || '[]');
} catch (e) {
messages = [];
}
for (var i = messages.length - 1; i >= 0; i--) {
if (messages[i].timestamp < threshold) {
messages.splice(i, 1);
changed++;
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}
}
if (changed > 0) {
localStorage.setItem(INDEX_EMIT, JSON.stringify(messages));
}
});
});
Intercom.prototype._cleanup_once = throttle(100, function () {
var self = this;
self._transaction(function () {
var timestamp, ttl, key;
var table;
var now = Date.now();
var changed = 0;
try {
table = JSON.parse(localStorage.getItem(INDEX_ONCE) || '{}');
} catch (e) {
table = {};
}
for (key in table) {
if (self._once_expired(key, table)) {
delete table[key];
changed++;
}
}
if (changed > 0) {
localStorage.setItem(INDEX_ONCE, JSON.stringify(table));
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}
});
});
Intercom.prototype._once_expired = function (key, table) {
if (!table) {
return true;
}
if (!table.hasOwnProperty(key)) {
return true;
}
if (_typeof(table[key]) !== 'object') {
return true;
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}
var ttl = table[key].ttl || THRESHOLD_TTL_ONCE;
var now = Date.now();
var timestamp = table[key].timestamp;
return timestamp < now - ttl;
};
Intercom.prototype._localStorageChanged = function (event, field) {
if (event && event.key) {
return event.key === field;
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}
var currentValue = localStorage.getItem(field);
if (currentValue === this.previousValues[field]) {
return false;
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}
this.previousValues[field] = currentValue;
return true;
};
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Intercom.prototype._onStorageEvent = function (event) {
event = event || global.event;
var self = this;
if (this._localStorageChanged(event, INDEX_EMIT)) {
this._transaction(function () {
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var now = Date.now();
var data = localStorage.getItem(INDEX_EMIT);
var messages;
try {
messages = JSON.parse(data || '[]');
} catch (e) {
messages = [];
}
for (var i = 0; i < messages.length; i++) {
if (messages[i].origin === self.origin) continue;
if (messages[i].timestamp < self.lastMessage) continue;
if (messages[i].id) {
if (self.receivedIDs.hasOwnProperty(messages[i].id)) continue;
self.receivedIDs[messages[i].id] = true;
}
self.trigger(messages[i].name, messages[i].payload);
}
self.lastMessage = now;
});
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}
this._trigger('storage', event);
};
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Intercom.prototype._emit = function (name, message, id) {
id = typeof id === 'string' || typeof id === 'number' ? String(id) : null;
if (id && id.length) {
if (this.receivedIDs.hasOwnProperty(id)) return;
this.receivedIDs[id] = true;
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}
var packet = {
id: id,
name: name,
origin: this.origin,
timestamp: Date.now(),
payload: message
};
var self = this;
this._transaction(function () {
var data = localStorage.getItem(INDEX_EMIT) || '[]';
var delimiter = data === '[]' ? '' : ',';
data = [data.substring(0, data.length - 1), delimiter, JSON.stringify(packet), ']'].join('');
localStorage.setItem(INDEX_EMIT, data);
self.trigger(name, message);
setTimeout(function () {
self._cleanup_emit();
}, 50);
});
};
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Intercom.prototype.emit = function (name, message) {
this._emit.apply(this, arguments);
this._trigger('emit', name, message);
};
Intercom.prototype.once = function (key, fn, ttl) {
if (!Intercom.supported) {
return;
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}
var self = this;
this._transaction(function () {
var data;
try {
data = JSON.parse(localStorage.getItem(INDEX_ONCE) || '{}');
} catch (e) {
data = {};
}
if (!self._once_expired(key, data)) {
return;
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}
data[key] = {};
data[key].timestamp = Date.now();
if (typeof ttl === 'number') {
data[key].ttl = ttl * 1000;
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}
localStorage.setItem(INDEX_ONCE, JSON.stringify(data));
fn();
setTimeout(function () {
self._cleanup_once();
}, 50);
});
};
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extend(Intercom.prototype, EventEmitter.prototype);
Intercom.supported = typeof localStorage !== 'undefined';
var INDEX_EMIT = 'intercom';
var INDEX_ONCE = 'intercom_once';
var INDEX_LOCK = 'intercom_lock';
var THRESHOLD_TTL_EMIT = 50000;
var THRESHOLD_TTL_ONCE = 1000 * 3600;
Intercom.destroy = function () {
localStorage.removeItem(INDEX_LOCK);
localStorage.removeItem(INDEX_EMIT);
localStorage.removeItem(INDEX_ONCE);
};
Intercom.getInstance = function () {
var intercom;
return function () {
if (!intercom) {
intercom = new Intercom();
}
return intercom;
};
}();
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module.exports = Intercom;
},{"./eventemitter.js":"J4Qg","../src/shared.js":"3zBM"}],"VLEe":[function(require,module,exports) {
var EventEmitter = require('../lib/eventemitter.js');
var Path = require('./path.js');
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var Intercom = require('../lib/intercom.js');
/**
* FSWatcher based on node.js' FSWatcher
* see https://github.com/joyent/node/blob/master/lib/fs.js
*/
function FSWatcher() {
EventEmitter.call(this);
var self = this;
var recursive = false;
var recursivePathPrefix;
var filename;
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function onchange(path) {
// Watch for exact filename, or parent path when recursive is true.
if (filename === path || recursive && path.indexOf(recursivePathPrefix) === 0) {
self.trigger('change', 'change', path);
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}
} // We support, but ignore the second arg, which node.js uses.
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self.start = function (filename_, persistent_, recursive_) {
// Bail if we've already started (and therefore have a filename);
if (filename) {
return;
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}
if (Path.isNull(filename_)) {
throw new Error('Path must be a string without null bytes.');
} // TODO: get realpath for symlinks on filename...
// Filer's Path.normalize strips trailing slashes, which we use here.
// See https://github.com/js-platform/filer/issues/105
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filename = Path.normalize(filename_); // Whether to watch beneath this path or not
recursive = recursive_ === true; // If recursive, construct a path prefix portion for comparisons later
// (i.e., '/path' becomes '/path/' so we can search within a filename for the
// prefix). We also take care to allow for '/' on its own.
if (recursive) {
recursivePathPrefix = filename === '/' ? '/' : filename + '/';
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}
var intercom = Intercom.getInstance();
intercom.on('change', onchange);
};
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self.close = function () {
var intercom = Intercom.getInstance();
intercom.off('change', onchange);
self.removeAllListeners('change');
};
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}
FSWatcher.prototype = new EventEmitter();
FSWatcher.prototype.constructor = FSWatcher;
module.exports = FSWatcher;
2018-10-30 18:35:33 +00:00
},{"../lib/eventemitter.js":"J4Qg","./path.js":"UzoP","../lib/intercom.js":"u7Jv"}],"03yF":[function(require,module,exports) {
var Buffer = require("buffer").Buffer;
module.exports = {
encode: function encode(string) {
return Buffer.from(string);
},
decode: function decode(buffer) {
return buffer.toString('utf8');
}
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};
},{"buffer":"dskh"}],"ZECt":[function(require,module,exports) {
var NODE_TYPE_FILE = require('./constants.js').NODE_TYPE_FILE;
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module.exports = function DirectoryEntry(id, type) {
this.id = id;
this.type = type || NODE_TYPE_FILE;
};
},{"./constants.js":"iJA9"}],"KKNo":[function(require,module,exports) {
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
var _require = require('./constants'),
NODE_TYPE_FILE = _require.NODE_TYPE_FILE,
NODE_TYPE_DIRECTORY = _require.NODE_TYPE_DIRECTORY,
NODE_TYPE_SYMBOLIC_LINK = _require.NODE_TYPE_SYMBOLIC_LINK,
DEFAULT_FILE_PERMISSIONS = _require.DEFAULT_FILE_PERMISSIONS,
DEFAULT_DIR_PERMISSIONS = _require.DEFAULT_DIR_PERMISSIONS;
var _require$fsConstants = require('./constants').fsConstants,
S_IFREG = _require$fsConstants.S_IFREG,
S_IFDIR = _require$fsConstants.S_IFDIR,
S_IFLNK = _require$fsConstants.S_IFLNK;
/**
* Make sure the options object has an id on property,
* either from caller or one we generate using supplied guid fn.
*/
function ensureID(options, prop, callback) {
if (options[prop]) {
return callback();
}
options.guid(function (err, id) {
if (err) {
return callback(err);
}
options[prop] = id;
callback();
});
}
/**
* Generate a POSIX mode (integer) for the node type and permissions.
* Use default permissions if we aren't passed any.
*/
function generateMode(nodeType, modePermissions) {
switch (nodeType) {
case NODE_TYPE_DIRECTORY:
return (modePermissions || DEFAULT_DIR_PERMISSIONS) | S_IFDIR;
case NODE_TYPE_SYMBOLIC_LINK:
return (modePermissions || DEFAULT_FILE_PERMISSIONS) | S_IFLNK;
case NODE_TYPE_FILE: // falls through
default:
return (modePermissions || DEFAULT_FILE_PERMISSIONS) | S_IFREG;
}
}
/**
* Common properties for the layout of a Node
*/
var Node =
/*#__PURE__*/
function () {
function Node(options) {
_classCallCheck(this, Node);
var now = Date.now();
this.id = options.id;
this.data = options.data; // id for data object
this.size = options.size || 0; // size (bytes for files, entries for directories)
this.atime = options.atime || now; // access time (will mirror ctime after creation)
this.ctime = options.ctime || now; // creation/change time
this.mtime = options.mtime || now; // modified time
this.flags = options.flags || []; // file flags
this.xattrs = options.xattrs || {}; // extended attributes
this.nlinks = options.nlinks || 0; // links count
// Historically, Filer's node layout has referred to the
// node type as `mode`, and done so using a String. In
// a POSIX filesystem, the mode is a number that combines
// both node type and permission bits. Internal we use `type`,
// but store it in the database as `mode` for backward
// compatibility.
if (typeof options.type === 'string') {
this.type = options.type;
} else if (typeof options.mode === 'string') {
this.type = options.mode;
} else {
this.type = NODE_TYPE_FILE;
} // Extra mode permissions and ownership info
this.permissions = options.permissions || generateMode(this.type);
this.uid = options.uid || 0x0; // owner name
this.gid = options.gid || 0x0; // group name
}
/**
* Serialize a Node to JSON. Everything is as expected except
* that we use `mode` for `type` to maintain backward compatibility.
*/
_createClass(Node, [{
key: "toJSON",
value: function toJSON() {
return {
id: this.id,
data: this.data,
size: this.size,
atime: this.atime,
ctime: this.ctime,
mtime: this.ctime,
flags: this.flags,
xattrs: this.xattrs,
nlinks: this.nlinks,
// Use `mode` for `type` to keep backward compatibility
mode: this.type,
permissions: this.permissions,
uid: this.uid,
gid: this.gid
};
} // Return complete POSIX `mode` for node type + permissions. See:
// http://man7.org/linux/man-pages/man2/chmod.2.html
}, {
key: "mode",
get: function get() {
return generateMode(this.type, this.permissions);
} // When setting the `mode` we assume permissions bits only (not changing type)
,
set: function set(value) {
this.permissions = value;
}
}]);
return Node;
}();
module.exports.create = function create(options, callback) {
// We expect both options.id and options.data to be provided/generated.
ensureID(options, 'id', function (err) {
if (err) {
return callback(err);
}
ensureID(options, 'data', function (err) {
if (err) {
return callback(err);
}
callback(null, new Node(options));
});
});
};
},{"./constants":"iJA9"}],"XWaV":[function(require,module,exports) {
var Errors = require('./errors.js');
var Node = require('./node');
function OpenFileDescription(path, id, flags, position) {
this.path = path;
this.id = id;
this.flags = flags;
this.position = position;
} // Tries to find the node associated with an ofd's `id`.
// If not found, an error is returned on the callback.
OpenFileDescription.prototype.getNode = function (context, callback) {
var id = this.id;
var path = this.path;
function check_if_node_exists(error, node) {
if (error) {
return callback(error);
}
if (!node) {
return callback(new Errors.EBADF('file descriptor refers to unknown node', path));
}
Node.create(node, callback);
}
context.getObject(id, check_if_node_exists);
};
module.exports = OpenFileDescription;
},{"./errors.js":"p8GN","./node":"KKNo"}],"33JE":[function(require,module,exports) {
var Constants = require('./constants.js');
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function SuperNode(options) {
var now = Date.now();
this.id = Constants.SUPER_NODE_ID;
this.type = Constants.NODE_TYPE_META;
this.atime = options.atime || now;
this.ctime = options.ctime || now;
this.mtime = options.mtime || now; // root node id (randomly generated)
this.rnode = options.rnode;
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}
SuperNode.create = function (options, callback) {
options.guid(function (err, rnode) {
if (err) {
callback(err);
return;
}
options.rnode = options.rnode || rnode;
callback(null, new SuperNode(options));
});
};
module.exports = SuperNode;
},{"./constants.js":"iJA9"}],"6dsC":[function(require,module,exports) {
var Constants = require('./constants.js');
var Path = require('./path.js'); // https://github.com/nodejs/node/blob/4f1297f259b09d129ac01afbd4c674263b7ac124/lib/internal/fs/utils.js#L231
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function dateFromNumeric(num) {
return new Date(Number(num) * 1000);
}
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function Stats(path, fileNode, devName) {
this.dev = devName;
this.node = fileNode.id;
this.type = fileNode.type;
this.size = fileNode.size;
this.nlinks = fileNode.nlinks; // Date objects
this.atime = dateFromNumeric(fileNode.atime);
this.mtime = dateFromNumeric(fileNode.mtime);
this.ctime = dateFromNumeric(fileNode.ctime); // Unix timestamp Numbers
this.atimeMs = fileNode.atime;
this.mtimeMs = fileNode.mtime;
this.ctimeMs = fileNode.ctime;
this.version = fileNode.version;
this.mode = fileNode.mode;
this.uid = fileNode.uid;
this.gid = fileNode.gid;
this.name = Path.basename(path);
}
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Stats.prototype.isFile = function () {
return this.type === Constants.NODE_TYPE_FILE;
};
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Stats.prototype.isDirectory = function () {
return this.type === Constants.NODE_TYPE_DIRECTORY;
};
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Stats.prototype.isSymbolicLink = function () {
return this.type === Constants.NODE_TYPE_SYMBOLIC_LINK;
}; // These will always be false in Filer.
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Stats.prototype.isSocket = Stats.prototype.isFIFO = Stats.prototype.isCharacterDevice = Stats.prototype.isBlockDevice = function () {
return false;
};
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module.exports = Stats;
},{"./constants.js":"iJA9","./path.js":"UzoP"}],"bsBG":[function(require,module,exports) {
var Buffer = require("buffer").Buffer;
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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var Path = require('../path.js');
var normalize = Path.normalize;
var dirname = Path.dirname;
var basename = Path.basename;
var isAbsolutePath = Path.isAbsolute;
var isNullPath = Path.isNull;
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var shared = require('../shared.js');
var Constants = require('../constants.js');
var NODE_TYPE_FILE = Constants.NODE_TYPE_FILE;
var NODE_TYPE_DIRECTORY = Constants.NODE_TYPE_DIRECTORY;
var NODE_TYPE_SYMBOLIC_LINK = Constants.NODE_TYPE_SYMBOLIC_LINK;
var NODE_TYPE_META = Constants.NODE_TYPE_META;
var FULL_READ_WRITE_EXEC_PERMISSIONS = Constants.FULL_READ_WRITE_EXEC_PERMISSIONS;
var ROOT_DIRECTORY_NAME = Constants.ROOT_DIRECTORY_NAME;
var SUPER_NODE_ID = Constants.SUPER_NODE_ID;
var SYMLOOP_MAX = Constants.SYMLOOP_MAX;
var O_READ = Constants.O_READ;
var O_WRITE = Constants.O_WRITE;
var O_CREATE = Constants.O_CREATE;
var O_EXCLUSIVE = Constants.O_EXCLUSIVE;
var O_APPEND = Constants.O_APPEND;
var O_FLAGS = Constants.O_FLAGS;
var XATTR_CREATE = Constants.XATTR_CREATE;
var XATTR_REPLACE = Constants.XATTR_REPLACE;
var FS_NOMTIME = Constants.FS_NOMTIME;
var FS_NOCTIME = Constants.FS_NOCTIME;
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var Encoding = require('../encoding.js');
var Errors = require('../errors.js');
var DirectoryEntry = require('../directory-entry.js');
var OpenFileDescription = require('../open-file-description.js');
var SuperNode = require('../super-node.js');
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var Node = require('../node.js');
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var Stats = require('../stats.js');
/**
* Update node times. Only passed times are modified (undefined times are ignored)
* and filesystem flags are examined in order to override update logic.
*/
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function update_node_times(context, path, node, times, callback) {
// Honour mount flags for how we update times
var flags = context.flags;
if (flags.includes(FS_NOCTIME)) {
delete times.ctime;
}
if (flags.includes(FS_NOMTIME)) {
delete times.mtime;
} // Only do the update if required (i.e., times are still present)
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var update = false;
if (times.ctime) {
node.ctime = times.ctime; // We don't do atime tracking for perf reasons, but do mirror ctime
node.atime = times.ctime;
update = true;
}
if (times.atime) {
// The only time we explicitly pass atime is when utimes(), futimes() is called.
// Override ctime mirror here if so
node.atime = times.atime;
update = true;
}
if (times.mtime) {
node.mtime = times.mtime;
update = true;
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}
function complete(error) {
// Queue this change so we can send watch events.
// Unlike node.js, we send the full path vs. basename/dirname only.
context.changes.push({
event: 'change',
path: path
});
callback(error);
}
if (update) {
context.putObject(node.id, node, complete);
} else {
complete();
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}
}
/**
* make_node()
*/
// in: file or directory path
// out: new node representing file/directory
function make_node(context, path, type, callback) {
if (type !== NODE_TYPE_DIRECTORY && type !== NODE_TYPE_FILE) {
return callback(new Errors.EINVAL('type must be a directory or file', path));
}
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path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var parentNode;
var parentNodeData;
var node; // Check if the parent node exists
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function create_node_in_parent(error, parentDirectoryNode) {
if (error) {
callback(error);
} else if (parentDirectoryNode.type !== NODE_TYPE_DIRECTORY) {
callback(new Errors.ENOTDIR('a component of the path prefix is not a directory', path));
} else {
parentNode = parentDirectoryNode;
find_node(context, path, check_if_node_exists);
}
} // Check if the node to be created already exists
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function check_if_node_exists(error, result) {
if (!error && result) {
callback(new Errors.EEXIST('path name already exists', path));
} else if (error && !(error instanceof Errors.ENOENT)) {
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callback(error);
} else {
context.getObject(parentNode.data, create_node);
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}
} // Create the new node
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function create_node(error, result) {
if (error) {
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callback(error);
} else {
parentNodeData = result;
Node.create({
guid: context.guid,
type: type
}, function (error, result) {
if (error) {
callback(error);
return;
}
node = result;
node.nlinks += 1;
context.putObject(node.id, node, update_parent_node_data);
});
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}
} // Update parent node time
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function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, parentPath, node, {
mtime: now,
ctime: now
}, callback);
}
} // Update the parent nodes data
function update_parent_node_data(error) {
if (error) {
callback(error);
} else {
parentNodeData[name] = new DirectoryEntry(node.id, type);
context.putObject(parentNode.data, parentNodeData, update_time);
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}
} // Find the parent node
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find_node(context, parentPath, create_node_in_parent);
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}
/**
* find_node
*/
// in: file or directory path
// out: node structure, or error
function find_node(context, path, callback) {
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path = normalize(path);
if (!path) {
return callback(new Errors.ENOENT('path is an empty string'));
}
var name = basename(path);
var parentPath = dirname(path);
var followedCount = 0;
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function read_root_directory_node(error, nodeData) {
if (error) {
return callback(error);
} // Parse existing node as SuperNode
var superNode = new SuperNode(nodeData);
if (!superNode || superNode.type !== NODE_TYPE_META || !superNode.rnode) {
callback(new Errors.EFILESYSTEMERROR());
} else {
context.getObject(superNode.rnode, check_root_directory_node);
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}
}
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function check_root_directory_node(error, rootDirectoryNode) {
if (error) {
callback(error);
} else if (!rootDirectoryNode) {
callback(new Errors.ENOENT());
} else {
Node.create(rootDirectoryNode, callback);
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}
} // in: parent directory node
// out: parent directory data
function read_parent_directory_data(error, parentDirectoryNode) {
if (error) {
callback(error);
} else if (parentDirectoryNode.type !== NODE_TYPE_DIRECTORY || !parentDirectoryNode.data) {
callback(new Errors.ENOTDIR('a component of the path prefix is not a directory', path));
} else {
context.getObject(parentDirectoryNode.data, get_node_from_parent_directory_data);
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}
} // in: parent directory data
// out: searched node
function get_node_from_parent_directory_data(error, parentDirectoryData) {
if (error) {
callback(error);
} else {
if (!parentDirectoryData.hasOwnProperty(name)) {
callback(new Errors.ENOENT(null, path));
} else {
var nodeId = parentDirectoryData[name].id;
context.getObject(nodeId, create_node);
}
}
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}
function create_node(error, data) {
if (error) {
return callback(error);
}
Node.create(data, is_symbolic_link);
}
function is_symbolic_link(error, node) {
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if (error) {
callback(error);
} else {
if (node.type === NODE_TYPE_SYMBOLIC_LINK) {
followedCount++;
if (followedCount > SYMLOOP_MAX) {
callback(new Errors.ELOOP(null, path));
} else {
follow_symbolic_link(node.data);
}
} else {
callback(null, node);
}
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}
}
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function follow_symbolic_link(data) {
data = normalize(data);
parentPath = dirname(data);
name = basename(data);
if (ROOT_DIRECTORY_NAME === name) {
context.getObject(SUPER_NODE_ID, read_root_directory_node);
} else {
find_node(context, parentPath, read_parent_directory_data);
}
}
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if (ROOT_DIRECTORY_NAME === name) {
context.getObject(SUPER_NODE_ID, read_root_directory_node);
} else {
find_node(context, parentPath, read_parent_directory_data);
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}
}
/**
* set extended attribute (refactor)
*/
function set_extended_attribute(context, path, node, name, value, flag, callback) {
function update_time(error) {
if (error) {
callback(error);
} else {
update_node_times(context, path, node, {
ctime: Date.now()
}, callback);
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}
}
var xattrs = node.xattrs;
if (flag === XATTR_CREATE && xattrs.hasOwnProperty(name)) {
callback(new Errors.EEXIST('attribute already exists', path));
} else if (flag === XATTR_REPLACE && !xattrs.hasOwnProperty(name)) {
callback(new Errors.ENOATTR(null, path));
} else {
xattrs[name] = value;
context.putObject(node.id, node, update_time);
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}
}
/**
* ensure_root_directory. Creates a root node if necessary.
*
* Note: this should only be invoked when formatting a new file system.
* Multiple invocations of this by separate instances will still result
* in only a single super node.
*/
function ensure_root_directory(context, callback) {
var superNode;
var directoryNode;
var directoryData;
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function ensure_super_node(error, existingNode) {
if (!error && existingNode) {
// Another instance has beat us and already created the super node.
callback();
} else if (error && !(error instanceof Errors.ENOENT)) {
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callback(error);
} else {
SuperNode.create({
guid: context.guid
}, function (error, result) {
if (error) {
callback(error);
return;
}
superNode = result;
context.putObject(superNode.id, superNode, write_directory_node);
});
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}
}
function write_directory_node(error) {
if (error) {
callback(error);
} else {
Node.create({
guid: context.guid,
id: superNode.rnode,
type: NODE_TYPE_DIRECTORY
}, function (error, result) {
if (error) {
callback(error);
return;
}
directoryNode = result;
directoryNode.nlinks += 1;
context.putObject(directoryNode.id, directoryNode, write_directory_data);
});
}
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}
function write_directory_data(error) {
if (error) {
callback(error);
} else {
directoryData = {};
context.putObject(directoryNode.data, directoryData, callback);
}
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}
context.getObject(SUPER_NODE_ID, ensure_super_node);
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}
/**
* make_directory
*/
function make_directory(context, path, callback) {
path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
var parentDirectoryNode;
var parentDirectoryData;
function check_if_directory_exists(error, result) {
if (!error && result) {
callback(new Errors.EEXIST(null, path));
} else if (error && !(error instanceof Errors.ENOENT)) {
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callback(error);
} else {
find_node(context, parentPath, read_parent_directory_data);
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}
}
function read_parent_directory_data(error, result) {
if (error) {
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callback(error);
} else {
parentDirectoryNode = result;
context.getObject(parentDirectoryNode.data, write_directory_node);
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}
}
function write_directory_node(error, result) {
if (error) {
callback(error);
} else {
parentDirectoryData = result;
Node.create({
guid: context.guid,
type: NODE_TYPE_DIRECTORY
}, function (error, result) {
if (error) {
callback(error);
return;
}
directoryNode = result;
directoryNode.nlinks += 1;
context.putObject(directoryNode.id, directoryNode, write_directory_data);
});
}
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}
function write_directory_data(error) {
if (error) {
callback(error);
} else {
directoryData = {};
context.putObject(directoryNode.data, directoryData, update_parent_directory_data);
}
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}
function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, parentPath, parentDirectoryNode, {
mtime: now,
ctime: now
}, callback);
}
}
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function update_parent_directory_data(error) {
if (error) {
callback(error);
} else {
parentDirectoryData[name] = new DirectoryEntry(directoryNode.id, NODE_TYPE_DIRECTORY);
context.putObject(parentDirectoryNode.data, parentDirectoryData, update_time);
}
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}
find_node(context, path, check_if_directory_exists);
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}
function access_file(context, path, mode, callback) {
path = normalize(path);
find_node(context, path, function (err, node) {
if (err) {
return callback(err);
}
if (mode === Constants.F_OK) {
return callback(null);
}
if (!(mode & Constants.X_OK) || node.mode & (Constants.fsConstants.S_IXUSR | Constants.fsConstants.S_IXGRP | Constants.fsConstants.S_IXOTH)) {
return callback(null);
}
callback(new Errors.EACCES('permission denied', path));
});
}
/**
* remove_directory
*/
function remove_directory(context, path, callback) {
path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
var parentDirectoryNode;
var parentDirectoryData;
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function read_parent_directory_data(error, result) {
if (error) {
callback(error);
} else {
parentDirectoryNode = result;
context.getObject(parentDirectoryNode.data, check_if_node_exists);
}
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}
function check_if_node_exists(error, result) {
if (error) {
callback(error);
} else if (ROOT_DIRECTORY_NAME === name) {
callback(new Errors.EBUSY(null, path));
} else if (!result.hasOwnProperty(name)) {
callback(new Errors.ENOENT(null, path));
} else {
parentDirectoryData = result;
directoryNode = parentDirectoryData[name].id;
context.getObject(directoryNode, check_if_node_is_directory);
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}
}
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function check_if_node_is_directory(error, result) {
if (error) {
callback(error);
} else if (result.type !== NODE_TYPE_DIRECTORY) {
callback(new Errors.ENOTDIR(null, path));
} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_directory_is_empty);
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}
}
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function check_if_directory_is_empty(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
if (Object.keys(directoryData).length > 0) {
callback(new Errors.ENOTEMPTY(null, path));
} else {
remove_directory_entry_from_parent_directory_node();
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}
}
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}
function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, parentPath, parentDirectoryNode, {
mtime: now,
ctime: now
}, remove_directory_node);
}
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}
function remove_directory_entry_from_parent_directory_node() {
delete parentDirectoryData[name];
context.putObject(parentDirectoryNode.data, parentDirectoryData, update_time);
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}
function remove_directory_node(error) {
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if (error) {
callback(error);
} else {
context.delete(directoryNode.id, remove_directory_data);
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}
}
function remove_directory_data(error) {
if (error) {
callback(error);
} else {
context.delete(directoryNode.data, callback);
}
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}
find_node(context, parentPath, read_parent_directory_data);
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}
function open_file(context, path, flags, mode, callback) {
if (typeof mode === 'function') {
callback = mode;
mode = null;
}
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path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
var directoryEntry;
var fileNode;
var fileData;
var followedCount = 0;
if (ROOT_DIRECTORY_NAME === name) {
if (flags.includes(O_WRITE)) {
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
} else {
find_node(context, path, set_file_node);
}
} else {
find_node(context, parentPath, read_directory_data);
}
function read_directory_data(error, result) {
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if (error) {
callback(error);
} else if (result.type !== NODE_TYPE_DIRECTORY) {
callback(new Errors.ENOENT(null, path));
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} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_file_exists);
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}
}
function check_if_file_exists(error, result) {
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if (error) {
callback(error);
} else {
directoryData = result;
if (directoryData.hasOwnProperty(name)) {
if (flags.includes(O_EXCLUSIVE)) {
callback(new Errors.ENOENT('O_CREATE and O_EXCLUSIVE are set, and the named file exists', path));
} else {
directoryEntry = directoryData[name];
if (directoryEntry.type === NODE_TYPE_DIRECTORY && flags.includes(O_WRITE)) {
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
} else {
context.getObject(directoryEntry.id, check_if_symbolic_link);
}
}
} else {
if (!flags.includes(O_CREATE)) {
callback(new Errors.ENOENT('O_CREATE is not set and the named file does not exist', path));
} else {
write_file_node();
}
}
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}
}
function check_if_symbolic_link(error, result) {
if (error) {
callback(error);
} else {
var node = result;
if (node.type === NODE_TYPE_SYMBOLIC_LINK) {
followedCount++;
if (followedCount > SYMLOOP_MAX) {
callback(new Errors.ELOOP(null, path));
} else {
follow_symbolic_link(node.data);
}
} else {
set_file_node(undefined, node);
}
}
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}
function follow_symbolic_link(data) {
data = normalize(data);
parentPath = dirname(data);
name = basename(data);
if (ROOT_DIRECTORY_NAME === name) {
if (flags.includes(O_WRITE)) {
callback(new Errors.EISDIR('the named file is a directory and O_WRITE is set', path));
} else {
find_node(context, path, set_file_node);
}
}
find_node(context, parentPath, read_directory_data);
}
function set_file_node(error, result) {
if (error) {
callback(error);
} else {
fileNode = result;
callback(null, fileNode);
}
}
function write_file_node() {
Node.create({
guid: context.guid,
type: NODE_TYPE_FILE
}, function (error, result) {
if (error) {
callback(error);
return;
}
fileNode = result;
fileNode.nlinks += 1;
if (mode) {
fileNode.mode = mode;
}
context.putObject(fileNode.id, fileNode, write_file_data);
});
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}
function write_file_data(error) {
if (error) {
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callback(error);
} else {
fileData = Buffer.alloc(0);
context.putBuffer(fileNode.data, fileData, update_directory_data);
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}
}
function update_time(error) {
if (error) {
callback(error);
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} else {
var now = Date.now();
update_node_times(context, parentPath, directoryNode, {
mtime: now,
ctime: now
}, handle_update_result);
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}
}
function update_directory_data(error) {
if (error) {
callback(error);
} else {
directoryData[name] = new DirectoryEntry(fileNode.id, NODE_TYPE_FILE);
context.putObject(directoryNode.data, directoryData, update_time);
}
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}
function handle_update_result(error) {
if (error) {
callback(error);
} else {
callback(null, fileNode);
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}
}
}
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function replace_data(context, ofd, buffer, offset, length, callback) {
var fileNode;
function return_nbytes(error) {
if (error) {
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callback(error);
} else {
callback(null, length);
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}
}
function update_time(error) {
if (error) {
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callback(error);
} else {
var now = Date.now();
update_node_times(context, ofd.path, fileNode, {
mtime: now,
ctime: now
}, return_nbytes);
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}
}
function update_file_node(error) {
if (error) {
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callback(error);
} else {
context.putObject(fileNode.id, fileNode, update_time);
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}
}
function write_file_data(error, result) {
if (error) {
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callback(error);
} else {
fileNode = result;
var newData = Buffer.alloc(length);
buffer.copy(newData, 0, offset, offset + length);
ofd.position = length;
fileNode.size = length;
fileNode.version += 1;
context.putBuffer(fileNode.data, newData, update_file_node);
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}
}
context.getObject(ofd.id, write_file_data);
}
function write_data(context, ofd, buffer, offset, length, position, callback) {
var fileNode;
var fileData;
function return_nbytes(error) {
if (error) {
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callback(error);
} else {
callback(null, length);
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}
}
function update_time(error) {
if (error) {
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callback(error);
} else {
var now = Date.now();
update_node_times(context, ofd.path, fileNode, {
mtime: now,
ctime: now
}, return_nbytes);
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}
}
function update_file_node(error) {
if (error) {
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callback(error);
} else {
context.putObject(fileNode.id, fileNode, update_time);
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}
}
function update_file_data(error, result) {
if (error) {
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callback(error);
} else {
fileData = result;
if (!fileData) {
return callback(new Errors.EIO('Expected Buffer'));
}
var _position = !(undefined === position || null === position) ? position : ofd.position;
var newSize = Math.max(fileData.length, _position + length);
var newData = Buffer.alloc(newSize);
if (fileData) {
fileData.copy(newData);
}
buffer.copy(newData, _position, offset, offset + length);
if (undefined === position) {
ofd.position += length;
}
fileNode.size = newSize;
fileNode.version += 1;
context.putBuffer(fileNode.data, newData, update_file_node);
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}
}
function read_file_data(error, result) {
if (error) {
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callback(error);
} else {
fileNode = result;
context.getBuffer(fileNode.data, update_file_data);
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}
}
context.getObject(ofd.id, read_file_data);
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}
function read_data(context, ofd, buffer, offset, length, position, callback) {
var fileNode;
var fileData;
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function handle_file_data(error, result) {
if (error) {
callback(error);
} else {
fileData = result;
if (!fileData) {
return callback(new Errors.EIO('Expected Buffer'));
}
var _position = !(undefined === position || null === position) ? position : ofd.position;
length = _position + length > buffer.length ? length - _position : length;
fileData.copy(buffer, offset, _position, _position + length);
if (undefined === position) {
ofd.position += length;
}
callback(null, length);
}
}
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function read_file_data(error, result) {
if (error) {
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callback(error);
} else if (result.type === NODE_TYPE_DIRECTORY) {
callback(new Errors.EISDIR('the named file is a directory', ofd.path));
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} else {
fileNode = result;
context.getBuffer(fileNode.data, handle_file_data);
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}
}
context.getObject(ofd.id, read_file_data);
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}
function stat_file(context, path, callback) {
path = normalize(path);
find_node(context, path, callback);
}
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function fstat_file(context, ofd, callback) {
ofd.getNode(context, callback);
}
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function lstat_file(context, path, callback) {
path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
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if (ROOT_DIRECTORY_NAME === name) {
find_node(context, path, callback);
} else {
find_node(context, parentPath, read_directory_data);
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}
function read_directory_data(error, result) {
if (error) {
callback(error);
} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_file_exists);
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}
}
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function check_if_file_exists(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
if (!directoryData.hasOwnProperty(name)) {
callback(new Errors.ENOENT('a component of the path does not name an existing file', path));
} else {
context.getObject(directoryData[name].id, callback);
}
}
2014-12-17 07:35:01 +00:00
}
}
function link_node(context, oldpath, newpath, callback) {
oldpath = normalize(oldpath);
var oldname = basename(oldpath);
var oldParentPath = dirname(oldpath);
newpath = normalize(newpath);
var newname = basename(newpath);
var newParentPath = dirname(newpath);
var ctime = Date.now();
var oldDirectoryNode;
var oldDirectoryData;
var newDirectoryNode;
var newDirectoryData;
var fileNodeID;
var fileNode;
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function update_time(error) {
if (error) {
callback(error);
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} else {
update_node_times(context, newpath, fileNode, {
ctime: ctime
}, callback);
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}
}
function update_file_node(error, result) {
if (error) {
callback(error);
} else {
fileNode = result;
fileNode.nlinks += 1;
context.putObject(fileNode.id, fileNode, update_time);
2014-05-27 18:44:30 +00:00
}
}
2018-10-30 18:35:33 +00:00
function read_file_node(error) {
if (error) {
callback(error);
} else {
context.getObject(fileNodeID, update_file_node);
2014-05-27 18:44:30 +00:00
}
}
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function check_if_new_file_exists(error, result) {
if (error) {
callback(error);
} else {
newDirectoryData = result;
if (newDirectoryData.hasOwnProperty(newname)) {
callback(new Errors.EEXIST('newpath resolves to an existing file', newname));
} else {
newDirectoryData[newname] = oldDirectoryData[oldname];
fileNodeID = newDirectoryData[newname].id;
context.putObject(newDirectoryNode.data, newDirectoryData, read_file_node);
}
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}
}
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function read_new_directory_data(error, result) {
if (error) {
callback(error);
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} else {
newDirectoryNode = result;
context.getObject(newDirectoryNode.data, check_if_new_file_exists);
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}
}
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function check_if_old_file_exists(error, result) {
if (error) {
callback(error);
} else {
oldDirectoryData = result;
if (!oldDirectoryData.hasOwnProperty(oldname)) {
callback(new Errors.ENOENT('a component of either path prefix does not exist', oldname));
} else if (oldDirectoryData[oldname].type === NODE_TYPE_DIRECTORY) {
callback(new Errors.EPERM('oldpath refers to a directory'));
} else {
find_node(context, newParentPath, read_new_directory_data);
}
}
}
2014-05-27 18:44:30 +00:00
function read_old_directory_data(error, result) {
if (error) {
callback(error);
} else {
oldDirectoryNode = result;
context.getObject(oldDirectoryNode.data, check_if_old_file_exists);
}
}
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find_node(context, oldParentPath, read_old_directory_data);
}
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function unlink_node(context, path, callback) {
path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
var fileNode;
2014-05-27 18:44:30 +00:00
function update_directory_data(error) {
if (error) {
callback(error);
} else {
delete directoryData[name];
context.putObject(directoryNode.data, directoryData, function (error) {
2018-10-30 18:35:33 +00:00
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, parentPath, directoryNode, {
mtime: now,
ctime: now
}, callback);
2018-10-30 18:35:33 +00:00
}
});
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}
}
function delete_file_data(error) {
if (error) {
callback(error);
} else {
context.delete(fileNode.data, update_directory_data);
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}
}
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function update_file_node(error, result) {
if (error) {
callback(error);
} else {
fileNode = result;
fileNode.nlinks -= 1;
if (fileNode.nlinks < 1) {
context.delete(fileNode.id, delete_file_data);
} else {
context.putObject(fileNode.id, fileNode, function (error) {
2018-10-30 18:35:33 +00:00
if (error) {
callback(error);
} else {
update_node_times(context, path, fileNode, {
ctime: Date.now()
}, update_directory_data);
2018-10-30 18:35:33 +00:00
}
});
}
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}
}
2014-07-14 20:01:52 +00:00
function check_if_node_is_directory(error, result) {
if (error) {
callback(error);
} else if (result.type === NODE_TYPE_DIRECTORY) {
callback(new Errors.EPERM('unlink not permitted on directories', name));
} else {
update_file_node(null, result);
}
}
function check_if_file_exists(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
if (!directoryData.hasOwnProperty(name)) {
callback(new Errors.ENOENT('a component of the path does not name an existing file', name));
} else {
context.getObject(directoryData[name].id, check_if_node_is_directory);
}
2014-07-15 13:26:58 +00:00
}
}
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function read_directory_data(error, result) {
if (error) {
callback(error);
} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_file_exists);
}
}
2014-05-27 18:44:30 +00:00
find_node(context, parentPath, read_directory_data);
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}
function read_directory(context, path, callback) {
path = normalize(path);
var directoryNode;
var directoryData;
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function handle_directory_data(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
var files = Object.keys(directoryData);
callback(null, files);
}
}
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function read_directory_data(error, result) {
if (error) {
callback(error);
} else if (result.type !== NODE_TYPE_DIRECTORY) {
callback(new Errors.ENOTDIR(null, path));
} else {
directoryNode = result;
context.getObject(directoryNode.data, handle_directory_data);
}
}
2014-05-27 18:44:30 +00:00
find_node(context, path, read_directory_data);
2014-07-14 20:01:52 +00:00
}
function make_symbolic_link(context, srcpath, dstpath, callback) {
dstpath = normalize(dstpath);
var name = basename(dstpath);
var parentPath = dirname(dstpath);
var directoryNode;
var directoryData;
var fileNode;
if (ROOT_DIRECTORY_NAME === name) {
callback(new Errors.EEXIST(null, name));
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} else {
find_node(context, parentPath, read_directory_data);
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}
function read_directory_data(error, result) {
if (error) {
callback(error);
} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_file_exists);
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}
}
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function check_if_file_exists(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
if (directoryData.hasOwnProperty(name)) {
callback(new Errors.EEXIST(null, name));
} else {
write_file_node();
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}
}
}
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function write_file_node() {
Node.create({
guid: context.guid,
type: NODE_TYPE_SYMBOLIC_LINK
}, function (error, result) {
if (error) {
callback(error);
return;
}
fileNode = result;
fileNode.nlinks += 1; // If the srcpath isn't absolute, resolve it relative to the dstpath
// but store both versions, since we'll use the relative one in readlink().
if (!isAbsolutePath(srcpath)) {
fileNode.symlink_relpath = srcpath;
srcpath = Path.resolve(parentPath, srcpath);
}
fileNode.size = srcpath.length;
fileNode.data = srcpath;
context.putObject(fileNode.id, fileNode, update_directory_data);
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});
}
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function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, parentPath, directoryNode, {
mtime: now,
ctime: now
}, callback);
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}
}
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function update_directory_data(error) {
if (error) {
callback(error);
} else {
directoryData[name] = new DirectoryEntry(fileNode.id, NODE_TYPE_SYMBOLIC_LINK);
context.putObject(directoryNode.data, directoryData, update_time);
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}
}
}
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function read_link(context, path, callback) {
path = normalize(path);
var name = basename(path);
var parentPath = dirname(path);
var directoryNode;
var directoryData;
find_node(context, parentPath, read_directory_data);
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function read_directory_data(error, result) {
if (error) {
callback(error);
} else {
directoryNode = result;
context.getObject(directoryNode.data, check_if_file_exists);
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}
}
function check_if_file_exists(error, result) {
if (error) {
callback(error);
} else {
directoryData = result;
if (!directoryData.hasOwnProperty(name)) {
callback(new Errors.ENOENT('a component of the path does not name an existing file', name));
} else {
context.getObject(directoryData[name].id, check_if_symbolic);
}
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}
}
function check_if_symbolic(error, fileNode) {
if (error) {
callback(error);
} else {
if (fileNode.type !== NODE_TYPE_SYMBOLIC_LINK) {
callback(new Errors.EINVAL('path not a symbolic link', path));
} else {
// If we were originally given a relative path, return that now vs. the
// absolute path we've generated and use elsewhere internally.
var target = fileNode.symlink_relpath ? fileNode.symlink_relpath : fileNode.data;
callback(null, target);
}
}
}
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}
function truncate_file(context, path, length, callback) {
path = normalize(path);
var fileNode;
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function read_file_data(error, node) {
if (error) {
callback(error);
} else if (node.type === NODE_TYPE_DIRECTORY) {
callback(new Errors.EISDIR(null, path));
} else {
fileNode = node;
context.getBuffer(fileNode.data, truncate_file_data);
}
}
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function truncate_file_data(error, fileData) {
if (error) {
callback(error);
} else {
if (!fileData) {
return callback(new Errors.EIO('Expected Buffer'));
}
var data = Buffer.alloc(length);
if (fileData) {
fileData.copy(data);
}
context.putBuffer(fileNode.data, data, update_file_node);
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}
}
function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, path, fileNode, {
mtime: now,
ctime: now
}, callback);
}
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}
function update_file_node(error) {
if (error) {
callback(error);
} else {
fileNode.size = length;
fileNode.version += 1;
context.putObject(fileNode.id, fileNode, update_time);
}
}
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if (length < 0) {
callback(new Errors.EINVAL('length cannot be negative'));
} else {
find_node(context, path, read_file_data);
}
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}
function ftruncate_file(context, ofd, length, callback) {
var fileNode;
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function read_file_data(error, node) {
if (error) {
callback(error);
} else if (node.type === NODE_TYPE_DIRECTORY) {
callback(new Errors.EISDIR());
} else {
fileNode = node;
context.getBuffer(fileNode.data, truncate_file_data);
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}
}
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function truncate_file_data(error, fileData) {
if (error) {
callback(error);
} else {
var data;
if (!fileData) {
return callback(new Errors.EIO('Expected Buffer'));
}
if (fileData) {
data = fileData.slice(0, length);
} else {
data = Buffer.alloc(length);
}
context.putBuffer(fileNode.data, data, update_file_node);
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}
}
function update_time(error) {
if (error) {
callback(error);
} else {
var now = Date.now();
update_node_times(context, ofd.path, fileNode, {
mtime: now,
ctime: now
}, callback);
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}
}
function update_file_node(error) {
if (error) {
callback(error);
} else {
fileNode.size = length;
fileNode.version += 1;
context.putObject(fileNode.id, fileNode, update_time);
}
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}
if (length < 0) {
callback(new Errors.EINVAL('length cannot be negative'));
} else {
ofd.getNode(context, read_file_data);
}
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}
function utimes_file(context, path, atime, mtime, callback) {
path = normalize(path);
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function update_times(error, node) {
if (error) {
callback(error);
} else {
update_node_times(context, path, node, {
atime: atime,
ctime: mtime,
mtime: mtime
}, callback);
}
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}
if (typeof atime !== 'number' || typeof mtime !== 'number') {
callback(new Errors.EINVAL('atime and mtime must be number', path));
} else if (atime < 0 || mtime < 0) {
callback(new Errors.EINVAL('atime and mtime must be positive integers', path));
} else {
find_node(context, path, update_times);
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}
}
function futimes_file(context, ofd, atime, mtime, callback) {
function update_times(error, node) {
if (error) {
callback(error);
} else {
update_node_times(context, ofd.path, node, {
atime: atime,
ctime: mtime,
mtime: mtime
}, callback);
}
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}
if (typeof atime !== 'number' || typeof mtime !== 'number') {
callback(new Errors.EINVAL('atime and mtime must be a number'));
} else if (atime < 0 || mtime < 0) {
callback(new Errors.EINVAL('atime and mtime must be positive integers'));
} else {
ofd.getNode(context, update_times);
}
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}
function setxattr_file(context, path, name, value, flag, callback) {
path = normalize(path);
function setxattr(error, node) {
if (error) {
return callback(error);
}
set_extended_attribute(context, path, node, name, value, flag, callback);
}
if (typeof name !== 'string') {
callback(new Errors.EINVAL('attribute name must be a string', path));
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
} else if (flag !== null && flag !== XATTR_CREATE && flag !== XATTR_REPLACE) {
callback(new Errors.EINVAL('invalid flag, must be null, XATTR_CREATE or XATTR_REPLACE', path));
} else {
find_node(context, path, setxattr);
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}
}
function fsetxattr_file(context, ofd, name, value, flag, callback) {
function setxattr(error, node) {
if (error) {
return callback(error);
}
set_extended_attribute(context, ofd.path, node, name, value, flag, callback);
}
if (typeof name !== 'string') {
callback(new Errors.EINVAL('attribute name must be a string'));
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
} else if (flag !== null && flag !== XATTR_CREATE && flag !== XATTR_REPLACE) {
callback(new Errors.EINVAL('invalid flag, must be null, XATTR_CREATE or XATTR_REPLACE'));
} else {
ofd.getNode(context, setxattr);
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}
}
function getxattr_file(context, path, name, callback) {
path = normalize(path);
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function get_xattr(error, node) {
if (error) {
return callback(error);
}
var xattrs = node.xattrs;
if (!xattrs.hasOwnProperty(name)) {
callback(new Errors.ENOATTR(null, path));
} else {
callback(null, xattrs[name]);
}
}
if (typeof name !== 'string') {
callback(new Errors.EINVAL('attribute name must be a string', path));
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
} else {
find_node(context, path, get_xattr);
}
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}
function fgetxattr_file(context, ofd, name, callback) {
function get_xattr(error, node) {
if (error) {
return callback(error);
}
var xattrs = node.xattrs;
if (!xattrs.hasOwnProperty(name)) {
callback(new Errors.ENOATTR());
} else {
callback(null, xattrs[name]);
}
}
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if (typeof name !== 'string') {
callback(new Errors.EINVAL());
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
} else {
ofd.getNode(context, get_xattr);
}
}
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function removexattr_file(context, path, name, callback) {
path = normalize(path);
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function remove_xattr(error, node) {
if (error) {
return callback(error);
}
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function update_time(error) {
if (error) {
callback(error);
} else {
update_node_times(context, path, node, {
ctime: Date.now()
}, callback);
}
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}
var xattrs = node.xattrs;
if (!xattrs.hasOwnProperty(name)) {
callback(new Errors.ENOATTR(null, path));
} else {
delete xattrs[name];
context.putObject(node.id, node, update_time);
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}
}
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if (typeof name !== 'string') {
callback(new Errors.EINVAL('attribute name must be a string', path));
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string', path));
} else {
find_node(context, path, remove_xattr);
}
}
function fremovexattr_file(context, ofd, name, callback) {
function remove_xattr(error, node) {
if (error) {
return callback(error);
}
function update_time(error) {
if (error) {
callback(error);
} else {
update_node_times(context, ofd.path, node, {
ctime: Date.now()
}, callback);
}
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}
var xattrs = node.xattrs;
if (!xattrs.hasOwnProperty(name)) {
callback(new Errors.ENOATTR());
} else {
delete xattrs[name];
context.putObject(node.id, node, update_time);
}
}
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if (typeof name !== 'string') {
callback(new Errors.EINVAL('attribute name must be a string'));
} else if (!name) {
callback(new Errors.EINVAL('attribute name cannot be an empty string'));
} else {
ofd.getNode(context, remove_xattr);
}
}
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function validate_flags(flags) {
return O_FLAGS.hasOwnProperty(flags) ? O_FLAGS[flags] : null;
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}
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function validate_file_options(options, enc, fileMode) {
if (!options) {
options = {
encoding: enc,
flag: fileMode
};
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} else if (typeof options === 'function') {
options = {
encoding: enc,
flag: fileMode
};
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} else if (typeof options === 'string') {
options = {
encoding: options,
flag: fileMode
};
}
return options;
}
function pathCheck(path, allowRelative, callback) {
var err;
if (typeof allowRelative === 'function') {
callback = allowRelative;
allowRelative = false;
}
if (!path) {
err = new Errors.EINVAL('Path must be a string', path);
} else if (isNullPath(path)) {
err = new Errors.EINVAL('Path must be a string without null bytes.', path);
} else if (!allowRelative && !isAbsolutePath(path)) {
err = new Errors.EINVAL('Path must be absolute.', path);
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}
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if (err) {
callback(err);
return false;
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}
return true;
}
function open(fs, context, path, flags, mode, callback) {
if (arguments.length < 6) {
callback = arguments[arguments.length - 1];
mode = 420;
} else {
mode = validateAndMaskMode(mode, FULL_READ_WRITE_EXEC_PERMISSIONS, callback);
}
if (!pathCheck(path, callback)) return;
function check_result(error, fileNode) {
if (error) {
callback(error);
} else {
var position;
if (flags.includes(O_APPEND)) {
position = fileNode.size;
} else {
position = 0;
}
var openFileDescription = new OpenFileDescription(path, fileNode.id, flags, position);
var fd = fs.allocDescriptor(openFileDescription);
callback(null, fd);
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}
}
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flags = validate_flags(flags);
if (!flags) {
return callback(new Errors.EINVAL('flags is not valid'), path);
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}
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open_file(context, path, flags, mode, check_result);
}
function close(fs, context, fd, callback) {
if (!fs.openFiles[fd]) {
callback(new Errors.EBADF());
} else {
fs.releaseDescriptor(fd);
callback(null);
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}
}
function mknod(fs, context, path, type, callback) {
if (!pathCheck(path, callback)) return;
make_node(context, path, type, callback);
}
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function mkdir(fs, context, path, mode, callback) {
if (arguments.length < 5) {
callback = mode;
mode = FULL_READ_WRITE_EXEC_PERMISSIONS;
} else {
mode = validateAndMaskMode(mode, FULL_READ_WRITE_EXEC_PERMISSIONS, callback);
if (!mode) return;
}
if (!pathCheck(path, callback)) return;
make_directory(context, path, callback);
}
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function access(fs, context, path, mode, callback) {
if (typeof mode === 'function') {
callback = mode;
mode = Constants.fsConstants.F_OK;
}
if (!pathCheck(path, callback)) return;
mode = mode | Constants.fsConstants.F_OK;
access_file(context, path, mode, callback);
}
function mkdtemp(fs, context, prefix, options, callback) {
callback = arguments[arguments.length - 1];
if (!prefix) {
return callback(new Error('filename prefix is required'));
}
var random = shared.randomChars(6);
var path = prefix + '-' + random;
if (!pathCheck(path, callback)) return;
make_directory(context, path, function (error) {
callback(error, path);
});
}
function rmdir(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
remove_directory(context, path, callback);
}
function stat(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
function check_result(error, result) {
if (error) {
callback(error);
} else {
var stats = new Stats(path, result, fs.name);
callback(null, stats);
}
}
stat_file(context, path, check_result);
}
function fstat(fs, context, fd, callback) {
function check_result(error, result) {
if (error) {
callback(error);
} else {
var stats = new Stats(ofd.path, result, fs.name);
callback(null, stats);
}
}
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else {
fstat_file(context, ofd, check_result);
}
}
function link(fs, context, oldpath, newpath, callback) {
if (!pathCheck(oldpath, callback)) return;
if (!pathCheck(newpath, callback)) return;
link_node(context, oldpath, newpath, callback);
}
function unlink(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
unlink_node(context, path, callback);
}
function read(fs, context, fd, buffer, offset, length, position, callback) {
// Follow how node.js does this
function wrapped_cb(err, bytesRead) {
// Retain a reference to buffer so that it can't be GC'ed too soon.
callback(err, bytesRead || 0, buffer);
}
offset = undefined === offset ? 0 : offset;
length = undefined === length ? buffer.length - offset : length;
callback = arguments[arguments.length - 1];
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_READ)) {
callback(new Errors.EBADF('descriptor does not permit reading'));
} else {
read_data(context, ofd, buffer, offset, length, position, wrapped_cb);
}
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}
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function fsync(fs, context, fd, callback) {
if (validateInteger(fd, callback) !== fd) return;
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else {
callback();
}
}
function readFile(fs, context, path, options, callback) {
callback = arguments[arguments.length - 1];
options = validate_file_options(options, null, 'r');
if (!pathCheck(path, callback)) return;
var flags = validate_flags(options.flag || 'r');
if (!flags) {
return callback(new Errors.EINVAL('flags is not valid', path));
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}
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open_file(context, path, flags, function (err, fileNode) {
if (err) {
return callback(err);
}
var ofd = new OpenFileDescription(path, fileNode.id, flags, 0);
var fd = fs.allocDescriptor(ofd);
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function cleanup() {
fs.releaseDescriptor(fd);
}
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fstat_file(context, ofd, function (err, fstatResult) {
if (err) {
cleanup();
return callback(err);
}
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var stats = new Stats(ofd.path, fstatResult, fs.name);
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if (stats.isDirectory()) {
cleanup();
return callback(new Errors.EISDIR('illegal operation on directory', path));
}
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var size = stats.size;
var buffer = Buffer.alloc(size);
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read_data(context, ofd, buffer, 0, size, 0, function (err) {
cleanup();
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if (err) {
return callback(err);
}
var data;
if (options.encoding === 'utf8') {
data = Encoding.decode(buffer);
} else {
data = buffer;
}
callback(null, data);
});
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});
});
}
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function write(fs, context, fd, buffer, offset, length, position, callback) {
callback = arguments[arguments.length - 1];
offset = undefined === offset ? 0 : offset;
length = undefined === length ? buffer.length - offset : length;
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else if (buffer.length - offset < length) {
callback(new Errors.EIO('input buffer is too small'));
} else {
write_data(context, ofd, buffer, offset, length, position, callback);
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}
}
function writeFile(fs, context, path, data, options, callback) {
callback = arguments[arguments.length - 1];
options = validate_file_options(options, 'utf8', 'w');
if (!pathCheck(path, callback)) return;
var flags = validate_flags(options.flag || 'w');
if (!flags) {
return callback(new Errors.EINVAL('flags is not valid', path));
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}
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data = data || '';
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if (typeof data === 'number') {
data = '' + data;
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}
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if (typeof data === 'string' && options.encoding === 'utf8') {
data = Encoding.encode(data);
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}
open_file(context, path, flags, function (err, fileNode) {
if (err) {
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return callback(err);
}
var ofd = new OpenFileDescription(path, fileNode.id, flags, 0);
var fd = fs.allocDescriptor(ofd);
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replace_data(context, ofd, data, 0, data.length, function (err) {
fs.releaseDescriptor(fd);
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if (err) {
return callback(err);
}
callback(null);
});
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});
}
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function appendFile(fs, context, path, data, options, callback) {
callback = arguments[arguments.length - 1];
options = validate_file_options(options, 'utf8', 'a');
if (!pathCheck(path, callback)) return;
var flags = validate_flags(options.flag || 'a');
if (!flags) {
return callback(new Errors.EINVAL('flags is not valid', path));
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}
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data = data || '';
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if (typeof data === 'number') {
data = '' + data;
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}
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if (typeof data === 'string' && options.encoding === 'utf8') {
data = Encoding.encode(data);
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}
open_file(context, path, flags, function (err, fileNode) {
if (err) {
return callback(err);
}
var ofd = new OpenFileDescription(path, fileNode.id, flags, fileNode.size);
var fd = fs.allocDescriptor(ofd);
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write_data(context, ofd, data, 0, data.length, ofd.position, function (err) {
fs.releaseDescriptor(fd);
if (err) {
return callback(err);
}
callback(null);
});
});
}
function exists(fs, context, path, callback) {
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function cb(err) {
callback(err ? false : true);
}
stat(fs, context, path, cb);
}
function validateInteger(value, callback) {
if (typeof value !== 'number') {
callback(new Errors.EINVAL('Expected integer', value));
return;
}
return value;
} // Based on https://github.com/nodejs/node/blob/c700cc42da9cf73af9fec2098520a6c0a631d901/lib/internal/validators.js#L21
var octalReg = /^[0-7]+$/;
function isUint32(value) {
return value === value >>> 0;
} // Validator for mode_t (the S_* constants). Valid numbers or octal strings
// will be masked with 0o777 to be consistent with the behavior in POSIX APIs.
function validateAndMaskMode(value, def, callback) {
if (typeof def === 'function') {
callback = def;
def = undefined;
}
if (isUint32(value)) {
return value & FULL_READ_WRITE_EXEC_PERMISSIONS;
}
if (typeof value === 'number') {
if (!Number.isInteger(value)) {
callback(new Errors.EINVAL('mode not a valid an integer value', value));
return false;
} else {
// 2 ** 32 === 4294967296
callback(new Errors.EINVAL('mode not a valid an integer value', value));
return false;
}
}
if (typeof value === 'string') {
if (!octalReg.test(value)) {
callback(new Errors.EINVAL('mode not a valid octal string', value));
return false;
}
var parsed = parseInt(value, 8);
return parsed & FULL_READ_WRITE_EXEC_PERMISSIONS;
} // TODO(BridgeAR): Only return `def` in case `value === null`
if (def !== undefined) {
return def;
}
callback(new Errors.EINVAL('mode not valid', value));
return false;
}
function chmod_file(context, path, mode, callback) {
path = normalize(path);
function update_mode(error, node) {
if (error) {
callback(error);
} else {
node.mode = mode;
update_node_times(context, path, node, {
mtime: Date.now()
}, callback);
}
}
if (typeof mode !== 'number') {
callback(new Errors.EINVAL('mode must be number', path));
} else {
find_node(context, path, update_mode);
}
}
function fchmod_file(context, ofd, mode, callback) {
function update_mode(error, node) {
if (error) {
callback(error);
} else {
node.mode = mode;
update_node_times(context, ofd.path, node, {
mtime: Date.now()
}, callback);
}
}
if (typeof mode !== 'number') {
callback(new Errors.EINVAL('mode must be a number'));
} else {
ofd.getNode(context, update_mode);
}
}
function chown_file(context, path, uid, gid, callback) {
path = normalize(path);
function update_owner(error, node) {
if (error) {
callback(error);
} else {
node.uid = uid;
node.gid = gid;
update_node_times(context, path, node, {
mtime: Date.now()
}, callback);
}
}
find_node(context, path, update_owner);
}
function fchown_file(context, ofd, uid, gid, callback) {
function update_owner(error, node) {
if (error) {
callback(error);
} else {
node.uid = uid;
node.gid = gid;
update_node_times(context, ofd.path, node, {
mtime: Date.now()
}, callback);
}
}
ofd.getNode(context, update_owner);
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}
function getxattr(fs, context, path, name, callback) {
if (!pathCheck(path, callback)) return;
getxattr_file(context, path, name, callback);
}
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function fgetxattr(fs, context, fd, name, callback) {
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else {
fgetxattr_file(context, ofd, name, callback);
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}
}
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function setxattr(fs, context, path, name, value, flag, callback) {
if (typeof flag === 'function') {
callback = flag;
flag = null;
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}
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if (!pathCheck(path, callback)) return;
setxattr_file(context, path, name, value, flag, callback);
}
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function fsetxattr(fs, context, fd, name, value, flag, callback) {
if (typeof flag === 'function') {
callback = flag;
flag = null;
}
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var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
fsetxattr_file(context, ofd, name, value, flag, callback);
}
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}
function removexattr(fs, context, path, name, callback) {
if (!pathCheck(path, callback)) return;
removexattr_file(context, path, name, callback);
}
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function fremovexattr(fs, context, fd, name, callback) {
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
fremovexattr_file(context, ofd, name, callback);
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}
}
function lseek(fs, context, fd, offset, whence, callback) {
function update_descriptor_position(error, stats) {
if (error) {
callback(error);
} else {
if (stats.size + offset < 0) {
callback(new Errors.EINVAL('resulting file offset would be negative'));
} else {
ofd.position = stats.size + offset;
callback(null, ofd.position);
}
}
}
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var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
}
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if ('SET' === whence) {
if (offset < 0) {
callback(new Errors.EINVAL('resulting file offset would be negative'));
} else {
ofd.position = offset;
callback(null, ofd.position);
}
} else if ('CUR' === whence) {
if (ofd.position + offset < 0) {
callback(new Errors.EINVAL('resulting file offset would be negative'));
} else {
ofd.position += offset;
callback(null, ofd.position);
}
} else if ('END' === whence) {
fstat_file(context, ofd, update_descriptor_position);
} else {
callback(new Errors.EINVAL('whence argument is not a proper value'));
}
}
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function readdir(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
read_directory(context, path, callback);
}
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function toUnixTimestamp(time) {
if (typeof time === 'number') {
return time;
}
if (_typeof(time) === 'object' && typeof time.getTime === 'function') {
return time.getTime() / 1000;
}
}
function utimes(fs, context, path, atime, mtime, callback) {
if (!pathCheck(path, callback)) return;
var currentTime = Date.now();
atime = atime ? toUnixTimestamp(atime) : toUnixTimestamp(currentTime);
mtime = mtime ? toUnixTimestamp(mtime) : toUnixTimestamp(currentTime);
utimes_file(context, path, atime, mtime, callback);
}
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function futimes(fs, context, fd, atime, mtime, callback) {
var currentTime = Date.now();
atime = atime ? toUnixTimestamp(atime) : toUnixTimestamp(currentTime);
mtime = mtime ? toUnixTimestamp(mtime) : toUnixTimestamp(currentTime);
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
futimes_file(context, ofd, atime, mtime, callback);
}
}
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function chmod(fs, context, path, mode, callback) {
if (!pathCheck(path, callback)) return;
mode = validateAndMaskMode(mode, 'mode', callback);
if (!mode) return;
chmod_file(context, path, mode, callback);
}
function fchmod(fs, context, fd, mode, callback) {
mode = validateAndMaskMode(mode, 'mode', callback);
if (!mode) return;
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
fchmod_file(context, ofd, mode, callback);
}
}
function chown(fs, context, path, uid, gid, callback) {
if (!pathCheck(path, callback)) return;
if (!isUint32(uid)) {
return callback(new Errors.EINVAL('uid must be a valid integer', uid));
}
if (!isUint32(gid)) {
return callback(new Errors.EINVAL('gid must be a valid integer', gid));
}
chown_file(context, path, uid, gid, callback);
}
function fchown(fs, context, fd, uid, gid, callback) {
if (!isUint32(uid)) {
return callback(new Errors.EINVAL('uid must be a valid integer', uid));
}
if (!isUint32(gid)) {
return callback(new Errors.EINVAL('gid must be a valid integer', gid));
}
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
fchown_file(context, ofd, uid, gid, callback);
}
}
function rename(fs, context, oldpath, newpath, callback) {
if (!pathCheck(oldpath, callback)) return;
if (!pathCheck(newpath, callback)) return;
oldpath = normalize(oldpath);
newpath = normalize(newpath);
var oldParentPath = Path.dirname(oldpath);
var newParentPath = Path.dirname(oldpath);
var oldName = Path.basename(oldpath);
var newName = Path.basename(newpath);
var oldParentDirectory, oldParentData;
var newParentDirectory, newParentData;
var ctime = Date.now();
var fileNode;
function update_times(error, result) {
if (error) {
callback(error);
} else {
fileNode = result;
update_node_times(context, newpath, fileNode, {
ctime: ctime
}, callback);
}
}
function read_new_directory(error) {
if (error) {
callback(error);
} else {
context.getObject(newParentData[newName].id, update_times);
}
}
function update_old_parent_directory_data(error) {
if (error) {
callback(error);
} else {
if (oldParentDirectory.id === newParentDirectory.id) {
oldParentData = newParentData;
}
delete oldParentData[oldName];
context.putObject(oldParentDirectory.data, oldParentData, read_new_directory);
}
}
function update_new_parent_directory_data(error) {
if (error) {
callback(error);
} else {
newParentData[newName] = oldParentData[oldName];
context.putObject(newParentDirectory.data, newParentData, update_old_parent_directory_data);
}
}
function check_if_new_directory_exists(error, result) {
if (error) {
callback(error);
} else {
newParentData = result;
if (newParentData.hasOwnProperty(newName)) {
remove_directory(context, newpath, update_new_parent_directory_data);
} else {
update_new_parent_directory_data();
}
}
}
function read_new_parent_directory_data(error, result) {
if (error) {
callback(error);
} else {
newParentDirectory = result;
context.getObject(newParentDirectory.data, check_if_new_directory_exists);
}
}
function get_new_parent_directory(error, result) {
if (error) {
callback(error);
} else {
oldParentData = result;
find_node(context, newParentPath, read_new_parent_directory_data);
}
}
function read_parent_directory_data(error, result) {
if (error) {
callback(error);
} else {
oldParentDirectory = result;
context.getObject(result.data, get_new_parent_directory);
}
}
function unlink_old_file(error) {
if (error) {
callback(error);
} else {
unlink_node(context, oldpath, callback);
}
}
function check_node_type(error, node) {
if (error) {
callback(error);
} else if (node.type === NODE_TYPE_DIRECTORY) {
find_node(context, oldParentPath, read_parent_directory_data);
} else {
link_node(context, oldpath, newpath, unlink_old_file);
}
}
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find_node(context, oldpath, check_node_type);
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}
function symlink(fs, context, srcpath, dstpath, type, callback) {
// NOTE: we support passing the `type` arg, but ignore it.
callback = arguments[arguments.length - 1]; // Special Case: allow srcpath to be relative, which we normally don't permit.
// If the srcpath is relative, we assume it's relative to the dirpath of dstpath.
if (!pathCheck(srcpath, true, callback)) return;
if (!pathCheck(dstpath, callback)) return;
make_symbolic_link(context, srcpath, dstpath, callback);
}
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function readlink(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
read_link(context, path, callback);
}
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function lstat(fs, context, path, callback) {
if (!pathCheck(path, callback)) return;
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function check_result(error, result) {
if (error) {
callback(error);
} else {
var stats = new Stats(path, result, fs.name);
callback(null, stats);
}
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}
lstat_file(context, path, check_result);
}
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function truncate(fs, context, path, length, callback) {
// NOTE: length is optional
callback = arguments[arguments.length - 1];
length = length || 0;
if (!pathCheck(path, callback)) return;
if (validateInteger(length, callback) !== length) return;
truncate_file(context, path, length, callback);
}
function ftruncate(fs, context, fd, length, callback) {
// NOTE: length is optional
callback = arguments[arguments.length - 1];
length = length || 0;
var ofd = fs.openFiles[fd];
if (!ofd) {
callback(new Errors.EBADF());
} else if (!ofd.flags.includes(O_WRITE)) {
callback(new Errors.EBADF('descriptor does not permit writing'));
} else {
if (validateInteger(length, callback) !== length) return;
ftruncate_file(context, ofd, length, callback);
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}
}
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module.exports = {
ensureRootDirectory: ensure_root_directory,
open: open,
chmod: chmod,
access: access,
fchmod: fchmod,
chown: chown,
fchown: fchown,
close: close,
mknod: mknod,
mkdir: mkdir,
mkdtemp: mkdtemp,
rmdir: rmdir,
unlink: unlink,
stat: stat,
fstat: fstat,
link: link,
fsync: fsync,
read: read,
readFile: readFile,
write: write,
writeFile: writeFile,
appendFile: appendFile,
exists: exists,
getxattr: getxattr,
fgetxattr: fgetxattr,
setxattr: setxattr,
fsetxattr: fsetxattr,
removexattr: removexattr,
fremovexattr: fremovexattr,
lseek: lseek,
readdir: readdir,
utimes: utimes,
futimes: futimes,
rename: rename,
symlink: symlink,
readlink: readlink,
lstat: lstat,
truncate: truncate,
ftruncate: ftruncate
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};
},{"../path.js":"UzoP","../shared.js":"3zBM","../constants.js":"iJA9","../encoding.js":"03yF","../errors.js":"p8GN","../directory-entry.js":"ZECt","../open-file-description.js":"XWaV","../super-node.js":"33JE","../node.js":"KKNo","../stats.js":"6dsC","buffer":"dskh"}],"GMi4":[function(require,module,exports) {
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var _require = require('es6-promisify'),
promisify = _require.promisify;
var isNullPath = require('../path.js').isNull;
var nop = require('../shared.js').nop;
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var Constants = require('../constants.js');
var FILE_SYSTEM_NAME = Constants.FILE_SYSTEM_NAME;
var FS_FORMAT = Constants.FS_FORMAT;
var FS_READY = Constants.FS_READY;
var FS_PENDING = Constants.FS_PENDING;
var FS_ERROR = Constants.FS_ERROR;
var FS_NODUPEIDCHECK = Constants.FS_NODUPEIDCHECK;
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var providers = require('../providers/index.js');
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var Shell = require('../shell/shell.js');
var Intercom = require('../../lib/intercom.js');
var FSWatcher = require('../fs-watcher.js');
var Errors = require('../errors.js');
var defaultGuidFn = require('../shared.js').guid;
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var STDIN = Constants.STDIN;
var STDOUT = Constants.STDOUT;
var STDERR = Constants.STDERR;
var FIRST_DESCRIPTOR = Constants.FIRST_DESCRIPTOR; // The core fs operations live on impl
var impl = require('./implementation.js'); // node.js supports a calling pattern that leaves off a callback.
function maybeCallback(callback) {
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if (typeof callback === 'function') {
return callback;
}
return function (err) {
if (err) {
throw err;
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}
};
} // Default callback that logs an error if passed in
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function defaultCallback(err) {
if (err) {
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/* eslint no-console: 0 */
console.error('Filer error: ', err);
}
}
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/**
* FileSystem
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*
* A FileSystem takes an `options` object, which can specify a number of,
* options. All options are optional, and include:
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*
* name: the name of the file system, defaults to "local"
*
* flags: one or more flags to use when creating/opening the file system.
* For example: "FORMAT" will cause the file system to be formatted.
* No explicit flags are set by default.
*
* provider: an explicit storage provider to use for the file
* system's database context provider. A number of context
* providers are included (see /src/providers), and users
* can write one of their own and pass it in to be used.
* By default an IndexedDB provider is used.
*
* guid: a function for generating unique IDs for nodes in the filesystem.
* Use this to override the built-in UUID generation. (Used mainly for tests).
*
* callback: a callback function to be executed when the file system becomes
* ready for use. Depending on the context provider used, this might
* be right away, or could take some time. The callback should expect
* an `error` argument, which will be null if everything worked. Also
* users should check the file system's `readyState` and `error`
* properties to make sure it is usable.
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*/
function FileSystem(options, callback) {
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options = options || {};
callback = callback || defaultCallback;
var flags = options.flags || [];
var guid = options.guid ? options.guid : defaultGuidFn;
var provider = options.provider || new providers.Default(options.name || FILE_SYSTEM_NAME); // If we're given a provider, match its name unless we get an explicit name
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var name = options.name || provider.name;
var forceFormatting = flags.includes(FS_FORMAT);
var fs = this;
fs.readyState = FS_PENDING;
fs.name = name;
fs.error = null;
fs.stdin = STDIN;
fs.stdout = STDOUT;
fs.stderr = STDERR; // Expose Node's fs.constants to users
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fs.constants = Constants.fsConstants; // Expose Shell constructor
this.Shell = Shell.bind(undefined, this); // Safely expose the list of open files and file
// descriptor management functions
var openFiles = {};
var nextDescriptor = FIRST_DESCRIPTOR;
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Object.defineProperty(this, 'openFiles', {
get: function get() {
return openFiles;
}
});
this.allocDescriptor = function (openFileDescription) {
var fd = nextDescriptor++;
openFiles[fd] = openFileDescription;
return fd;
};
this.releaseDescriptor = function (fd) {
delete openFiles[fd];
}; // Safely expose the operation queue
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var queue = [];
this.queueOrRun = function (operation) {
var error;
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if (FS_READY === fs.readyState) {
operation.call(fs);
} else if (FS_ERROR === fs.readyState) {
error = new Errors.EFILESYSTEMERROR('unknown error');
} else {
queue.push(operation);
}
return error;
};
function runQueued() {
queue.forEach(function (operation) {
operation.call(this);
}.bind(fs));
queue = null;
} // We support the optional `options` arg from node, but ignore it
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this.watch = function (filename, options, listener) {
if (isNullPath(filename)) {
throw new Error('Path must be a string without null bytes.');
}
if (typeof options === 'function') {
listener = options;
options = {};
}
options = options || {};
listener = listener || nop;
var watcher = new FSWatcher();
watcher.start(filename, false, options.recursive);
watcher.on('change', listener);
return watcher;
}; // Deal with various approaches to node ID creation
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function wrappedGuidFn(context) {
return function (callback) {
// Skip the duplicate ID check if asked to
if (flags.includes(FS_NODUPEIDCHECK)) {
callback(null, guid());
return;
} // Otherwise (default) make sure this id is unused first
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function guidWithCheck(callback) {
var id = guid();
context.getObject(id, function (err, value) {
if (err) {
callback(err);
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return;
} // If this id is unused, use it, otherwise find another
if (!value) {
callback(null, id);
} else {
guidWithCheck(callback);
}
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});
}
guidWithCheck(callback);
};
} // Let other instances (in this or other windows) know about
// any changes to this fs instance.
function broadcastChanges(changes) {
if (!changes.length) {
return;
}
var intercom = Intercom.getInstance();
changes.forEach(function (change) {
intercom.emit(change.event, change.path);
});
} // Open file system storage provider
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provider.open(function (err) {
function complete(error) {
function wrappedContext(methodName) {
var context = provider[methodName]();
context.flags = flags;
context.changes = [];
context.guid = wrappedGuidFn(context); // When the context is finished, let the fs deal with any change events
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context.close = function () {
var changes = context.changes;
broadcastChanges(changes);
changes.length = 0;
};
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return context;
} // Wrap the provider so we can extend the context with fs flags and
// an array of changes (e.g., watch event 'change' and 'rename' events
// for paths updated during the lifetime of the context). From this
// point forward we won't call open again, so it's safe to drop it.
fs.provider = {
openReadWriteContext: function openReadWriteContext() {
return wrappedContext('getReadWriteContext');
},
openReadOnlyContext: function openReadOnlyContext() {
return wrappedContext('getReadOnlyContext');
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}
};
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if (error) {
fs.readyState = FS_ERROR;
} else {
fs.readyState = FS_READY;
}
runQueued();
callback(error, fs);
}
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if (err) {
return complete(err);
}
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var context = provider.getReadWriteContext();
context.guid = wrappedGuidFn(context); // Mount the filesystem, formatting if necessary
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if (forceFormatting) {
// Wipe the storage provider, then write root block
context.clear(function (err) {
if (err) {
return complete(err);
}
impl.ensureRootDirectory(context, complete);
});
} else {
// Use existing (or create new) root and mount
impl.ensureRootDirectory(context, complete);
}
});
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FileSystem.prototype.promises = {};
/**
* Public API for FileSystem. All node.js methods that are
* exposed on fs.promises include `promise: true`. We also
* include our own extra methods, but skip the fd versions
* to match node.js, which puts these on a FileHandle object.
*/
[{
name: 'open',
promises: true
}, {
name: 'access',
promises: true
}, {
name: 'chmod',
promises: true
}, {
name: 'fchmod'
}, {
name: 'chown',
promises: true
}, {
name: 'fchown'
}, {
name: 'close'
}, {
name: 'mknod',
promises: true
}, {
name: 'mkdir',
promises: true
}, {
name: 'mkdtemp',
promises: true
}, {
name: 'rmdir',
promises: true
}, {
name: 'stat',
promises: true
}, {
name: 'fstat'
}, {
name: 'fsync'
}, {
name: 'link',
promises: true
}, {
name: 'unlink',
promises: true
}, {
name: 'read'
}, {
name: 'readFile',
promises: true
}, {
name: 'write'
}, {
name: 'writeFile',
promises: true
}, {
name: 'appendFile',
promises: true
}, {
name: 'exists'
}, {
name: 'lseek'
}, {
name: 'readdir',
promises: true
}, {
name: 'rename',
promises: true
}, {
name: 'readlink',
promises: true
}, {
name: 'symlink',
promises: true
}, {
name: 'lstat',
promises: true
}, {
name: 'truncate',
promises: true
}, {
name: 'ftruncate'
}, {
name: 'utimes',
promises: true
}, {
name: 'futimes'
}, {
name: 'setxattr',
promises: true
}, {
name: 'getxattr',
promises: true
}, {
name: 'fsetxattr'
}, {
name: 'fgetxattr'
}, {
name: 'removexattr',
promises: true
}, {
name: 'fremovexattr'
}].forEach(function (method) {
var methodName = method.name;
var shouldPromisify = method.promises === true;
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FileSystem.prototype[methodName] = function () {
var fs = this;
var args = Array.prototype.slice.call(arguments, 0);
var lastArgIndex = args.length - 1; // We may or may not get a callback, and since node.js supports
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// fire-and-forget style fs operations, we have to dance a bit here.
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var missingCallback = typeof args[lastArgIndex] !== 'function';
var callback = maybeCallback(args[lastArgIndex]);
var error = fs.queueOrRun(function () {
var context = fs.provider.openReadWriteContext(); // Fail early if the filesystem is in an error state (e.g.,
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// provider failed to open.
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if (FS_ERROR === fs.readyState) {
var err = new Errors.EFILESYSTEMERROR('filesystem unavailable, operation canceled');
return callback.call(fs, err);
} // Wrap the callback so we can explicitly close the context
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function complete() {
context.close();
callback.apply(fs, arguments);
} // Either add or replace the callback with our wrapper complete()
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if (missingCallback) {
args.push(complete);
} else {
args[lastArgIndex] = complete;
} // Forward this call to the impl's version, using the following
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// call signature, with complete() as the callback/last-arg now:
// fn(fs, context, arg0, arg1, ... , complete);
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var fnArgs = [fs, context].concat(args);
impl[methodName].apply(null, fnArgs);
});
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if (error) {
callback(error);
}
}; // Add to fs.promises if appropriate
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if (shouldPromisify) {
FileSystem.prototype.promises[methodName] = promisify(FileSystem.prototype[methodName].bind(fs));
}
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});
} // Expose storage providers on FileSystem constructor
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FileSystem.providers = providers;
module.exports = FileSystem;
},{"es6-promisify":"0c0E","../path.js":"UzoP","../shared.js":"3zBM","../constants.js":"iJA9","../providers/index.js":"AiW7","../shell/shell.js":"D1Ra","../../lib/intercom.js":"u7Jv","../fs-watcher.js":"VLEe","../errors.js":"p8GN","./implementation.js":"bsBG"}],"Focm":[function(require,module,exports) {
var Buffer = require("buffer").Buffer;
module.exports = {
FileSystem: require('./filesystem/interface.js'),
Buffer: Buffer,
Path: require('./path.js'),
Errors: require('./errors.js'),
Shell: require('./shell/shell.js')
};
},{"./filesystem/interface.js":"GMi4","./path.js":"UzoP","./errors.js":"p8GN","./shell/shell.js":"D1Ra","buffer":"dskh"}]},{},["Focm"], "Filer")
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