@codesandbox/sandpack-client
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191 lines • 6.59 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileType = void 0;
/**
* Indicates the type of the given file. Applied to 'mode'.
*/
var FileType;
(function (FileType) {
FileType[FileType["FILE"] = 32768] = "FILE";
FileType[FileType["DIRECTORY"] = 16384] = "DIRECTORY";
FileType[FileType["SYMLINK"] = 40960] = "SYMLINK";
})(FileType || (exports.FileType = FileType = {}));
/**
* Emulation of Node's `fs.Stats` object.
*
* Attribute descriptions are from `man 2 stat'
* @see http://nodejs.org/api/fs.html#fs_class_fs_stats
* @see http://man7.org/linux/man-pages/man2/stat.2.html
*/
var Stats = /** @class */ (function () {
/**
* Provides information about a particular entry in the file system.
* @param itemType Type of the item (FILE, DIRECTORY, SYMLINK, or SOCKET)
* @param size Size of the item in bytes. For directories/symlinks,
* this is normally the size of the struct that represents the item.
* @param mode Unix-style file mode (e.g. 0o644)
* @param atimeMs time of last access, in milliseconds since epoch
* @param mtimeMs time of last modification, in milliseconds since epoch
* @param ctimeMs time of last time file status was changed, in milliseconds since epoch
* @param birthtimeMs time of file creation, in milliseconds since epoch
*/
function Stats(itemType, size, mode, atimeMs, mtimeMs, ctimeMs, birthtimeMs) {
/**
* UNSUPPORTED ATTRIBUTES
* I assume no one is going to need these details, although we could fake
* appropriate values if need be.
*/
// ID of device containing file
this.dev = 0;
// inode number
this.ino = 0;
// device ID (if special file)
this.rdev = 0;
// number of hard links
this.nlink = 1;
// blocksize for file system I/O
this.blksize = 4096;
// @todo Maybe support these? atm, it's a one-user filesystem.
// user ID of owner
this.uid = 0;
// group ID of owner
this.gid = 0;
// XXX: Some file systems stash data on stats objects.
this.fileData = null;
this.size = size;
var currentTime = 0;
if (typeof (atimeMs) !== 'number') {
currentTime = Date.now();
atimeMs = currentTime;
}
if (typeof (mtimeMs) !== 'number') {
if (!currentTime) {
currentTime = Date.now();
}
mtimeMs = currentTime;
}
if (typeof (ctimeMs) !== 'number') {
if (!currentTime) {
currentTime = Date.now();
}
ctimeMs = currentTime;
}
if (typeof (birthtimeMs) !== 'number') {
if (!currentTime) {
currentTime = Date.now();
}
birthtimeMs = currentTime;
}
this.atimeMs = atimeMs;
this.ctimeMs = ctimeMs;
this.mtimeMs = mtimeMs;
this.birthtimeMs = birthtimeMs;
if (!mode) {
switch (itemType) {
case FileType.FILE:
this.mode = 0x1a4;
break;
case FileType.DIRECTORY:
default:
this.mode = 0x1ff;
}
}
else {
this.mode = mode;
}
// number of 512B blocks allocated
this.blocks = Math.ceil(size / 512);
// Check if mode also includes top-most bits, which indicate the file's
// type.
if (this.mode < 0x1000) {
this.mode |= itemType;
}
}
Stats.fromBuffer = function (buffer) {
var size = buffer.readUInt32LE(0), mode = buffer.readUInt32LE(4), atime = buffer.readDoubleLE(8), mtime = buffer.readDoubleLE(16), ctime = buffer.readDoubleLE(24);
return new Stats(mode & 0xF000, size, mode & 0xFFF, atime, mtime, ctime);
};
/**
* Clones the stats object.
*/
Stats.clone = function (s) {
return new Stats(s.mode & 0xF000, s.size, s.mode & 0xFFF, s.atimeMs, s.mtimeMs, s.ctimeMs, s.birthtimeMs);
};
Object.defineProperty(Stats.prototype, "atime", {
get: function () {
return new Date(this.atimeMs);
},
enumerable: false,
configurable: true
});
Object.defineProperty(Stats.prototype, "mtime", {
get: function () {
return new Date(this.mtimeMs);
},
enumerable: false,
configurable: true
});
Object.defineProperty(Stats.prototype, "ctime", {
get: function () {
return new Date(this.ctimeMs);
},
enumerable: false,
configurable: true
});
Object.defineProperty(Stats.prototype, "birthtime", {
get: function () {
return new Date(this.birthtimeMs);
},
enumerable: false,
configurable: true
});
Stats.prototype.toBuffer = function () {
var buffer = Buffer.alloc(32);
buffer.writeUInt32LE(this.size, 0);
buffer.writeUInt32LE(this.mode, 4);
buffer.writeDoubleLE(this.atime.getTime(), 8);
buffer.writeDoubleLE(this.mtime.getTime(), 16);
buffer.writeDoubleLE(this.ctime.getTime(), 24);
return buffer;
};
/**
* @return [Boolean] True if this item is a file.
*/
Stats.prototype.isFile = function () {
return (this.mode & 0xF000) === FileType.FILE;
};
/**
* @return [Boolean] True if this item is a directory.
*/
Stats.prototype.isDirectory = function () {
return (this.mode & 0xF000) === FileType.DIRECTORY;
};
/**
* @return [Boolean] True if this item is a symbolic link (only valid through lstat)
*/
Stats.prototype.isSymbolicLink = function () {
return (this.mode & 0xF000) === FileType.SYMLINK;
};
/**
* Change the mode of the file. We use this helper function to prevent messing
* up the type of the file, which is encoded in mode.
*/
Stats.prototype.chmod = function (mode) {
this.mode = (this.mode & 0xF000) | mode;
};
// We don't support the following types of files.
Stats.prototype.isSocket = function () {
return false;
};
Stats.prototype.isBlockDevice = function () {
return false;
};
Stats.prototype.isCharacterDevice = function () {
return false;
};
Stats.prototype.isFIFO = function () {
return false;
};
return Stats;
}());
exports.default = Stats;