browserfs
Version:
A filesystem in your browser!
130 lines • 17.5 kB
JavaScript
;
var path = require('path');
var SUPPORTS_TYPED_ARRAYS = typeof (ArrayBuffer) !== 'undefined';
exports.isIE = typeof navigator !== "undefined" && (/(msie) ([\w.]+)/.exec(navigator.userAgent.toLowerCase()) != null || navigator.userAgent.indexOf('Trident') !== -1);
exports.isWebWorker = typeof window === "undefined";
function mkdirpSync(p, mode, fs) {
if (!fs.existsSync(p)) {
mkdirpSync(path.dirname(p), mode, fs);
fs.mkdirSync(p, mode);
}
}
exports.mkdirpSync = mkdirpSync;
function buffer2ArrayBuffer(buff) {
var u8 = buffer2Uint8array(buff), u8offset = u8.byteOffset, u8Len = u8.byteLength;
if (u8offset === 0 && u8Len === u8.buffer.byteLength) {
return u8.buffer;
}
else {
return u8.buffer.slice(u8offset, u8offset + u8Len);
}
}
exports.buffer2ArrayBuffer = buffer2ArrayBuffer;
function buffer2Uint8array(buff) {
if (buff['toUint8Array']) {
return buff.toUint8Array();
}
else if (buff instanceof Uint8Array) {
return buff;
}
else {
return new Uint8Array(buff);
}
}
exports.buffer2Uint8array = buffer2Uint8array;
function buffer2Arrayish(buff) {
if (typeof (buff[0]) === 'number') {
return buff;
}
else if (SUPPORTS_TYPED_ARRAYS) {
return buffer2Uint8array(buff);
}
else {
return buff.toJSON().data;
}
}
exports.buffer2Arrayish = buffer2Arrayish;
function arrayish2Buffer(arr) {
if (SUPPORTS_TYPED_ARRAYS && arr instanceof Uint8Array) {
return uint8Array2Buffer(arr);
}
else if (arr instanceof Buffer) {
return arr;
}
else {
return new Buffer(arr);
}
}
exports.arrayish2Buffer = arrayish2Buffer;
function uint8Array2Buffer(u8) {
if (u8.byteOffset === 0 && u8.byteLength === u8.buffer.byteLength) {
return arrayBuffer2Buffer(u8);
}
else {
return new Buffer(u8);
}
}
exports.uint8Array2Buffer = uint8Array2Buffer;
function arrayBuffer2Buffer(ab) {
try {
return new Buffer(ab);
}
catch (e) {
return new Buffer(new Uint8Array(ab));
}
}
exports.arrayBuffer2Buffer = arrayBuffer2Buffer;
if (typeof (ArrayBuffer) !== 'undefined' && typeof (Uint8Array) !== 'undefined') {
if (!Uint8Array.prototype['slice']) {
Uint8Array.prototype.slice = function (start, end) {
if (start === void 0) { start = 0; }
if (end === void 0) { end = this.length; }
var self = this;
if (start < 0) {
start = this.length + start;
if (start < 0) {
start = 0;
}
}
if (end < 0) {
end = this.length + end;
if (end < 0) {
end = 0;
}
}
if (end < start) {
end = start;
}
return new Uint8Array(self.buffer, self.byteOffset + start, end - start);
};
}
}
function copyingSlice(buff, start, end) {
if (start === void 0) { start = 0; }
if (end === void 0) { end = buff.length; }
if (start < 0 || end < 0 || end > buff.length || start > end) {
throw new TypeError("Invalid slice bounds on buffer of length " + buff.length + ": [" + start + ", " + end + "]");
}
if (buff.length === 0) {
return new Buffer(0);
}
else if (SUPPORTS_TYPED_ARRAYS) {
var u8 = buffer2Uint8array(buff), s0 = buff.readUInt8(0), newS0 = (s0 + 1) % 0xFF;
buff.writeUInt8(newS0, 0);
if (u8[0] === newS0) {
u8[0] = s0;
return uint8Array2Buffer(u8.slice(start, end));
}
else {
buff.writeUInt8(s0, 0);
return uint8Array2Buffer(u8.subarray(start, end));
}
}
else {
var buffSlice = new Buffer(end - start);
buff.copy(buffSlice, 0, start, end);
return buffSlice;
}
}
exports.copyingSlice = copyingSlice;
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"util.js","sourceRoot":"","sources":["../../../src/core/util.ts"],"names":[],"mappings":";AAIA,IAAO,IAAI,WAAW,MAAM,CAAC,CAAC;AAE9B,IAAM,qBAAqB,GAAG,OAAM,CAAC,WAAW,CAAC,KAAK,WAAW,CAAC;AAMvD,YAAI,GAAY,OAAO,SAAS,KAAK,WAAW,IAAI,CAAC,iBAAiB,CAAC,IAAI,CAAC,SAAS,CAAC,SAAS,CAAC,WAAW,EAAE,CAAC,IAAI,IAAI,IAAI,SAAS,CAAC,SAAS,CAAC,OAAO,CAAC,SAAS,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;AAKzK,mBAAW,GAAY,OAAO,MAAM,KAAK,WAAW,CAAC;AAUhE,oBAA2B,CAAS,EAAE,IAAY,EAAE,EAAc;IAChE,EAAE,CAAC,CAAC,CAAC,EAAE,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QACtB,UAAU,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,IAAI,EAAE,EAAE,CAAC,CAAC;QACtC,EAAE,CAAC,SAAS,CAAC,CAAC,EAAE,IAAI,CAAC,CAAC;IACxB,CAAC;AACH,CAAC;AALe,kBAAU,aAKzB,CAAA;AAMD,4BAAmC,IAAY;IAC7C,IAAI,EAAE,GAAG,iBAAiB,CAAC,IAAI,CAAC,EAC9B,QAAQ,GAAG,EAAE,CAAC,UAAU,EACxB,KAAK,GAAG,EAAE,CAAC,UAAU,CAAC;IACxB,EAAE,CAAC,CAAC,QAAQ,KAAK,CAAC,IAAI,KAAK,KAAK,EAAE,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,CAAC;QACrD,MAAM,CAAC,EAAE,CAAC,MAAM,CAAC;IACnB,CAAC;IAAC,IAAI,CAAC,CAAC;QACN,MAAM,CAAC,EAAE,CAAC,MAAM,CAAC,KAAK,CAAC,QAAQ,EAAE,QAAQ,GAAG,KAAK,CAAC,CAAA;IACpD,CAAC;AACH,CAAC;AATe,0BAAkB,qBASjC,CAAA;AAMD,2BAAkC,IAAY;IAC5C,EAAE,CAAC,CAAC,IAAI,CAAC,cAAc,CAAC,CAAC,CAAC,CAAC;QACzB,MAAM,CAAQ,IAAK,CAAC,YAAY,EAAE,CAAC;IACrC,CAAC;IAAC,IAAI,CAAC,EAAE,CAAC,CAAC,IAAI,YAAY,UAAU,CAAC,CAAC,CAAC;QAEtC,MAAM,CAAO,IAAI,CAAC;IACpB,CAAC;IAAC,IAAI,CAAC,CAAC;QAGN,MAAM,CAAC,IAAI,UAAU,CAAC,IAAI,CAAC,CAAC;IAC9B,CAAC;AACH,CAAC;AAXe,yBAAiB,oBAWhC,CAAA;AAQD,yBAAgC,IAAY;IAC1C,EAAE,CAAC,CAAC,OAAM,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,KAAK,QAAQ,CAAC,CAAC,CAAC;QACjC,MAAM,CAAC,IAAI,CAAC;IACd,CAAC;IAAC,IAAI,CAAC,EAAE,CAAC,CAAC,qBAAqB,CAAC,CAAC,CAAC;QACjC,MAAM,CAAC,iBAAiB,CAAC,IAAI,CAAC,CAAC;IACjC,CAAC;IAAC,IAAI,CAAC,CAAC;QACN,MAAM,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC,IAAI,CAAC;IAC5B,CAAC;AACH,CAAC;AARe,uBAAe,kBAQ9B,CAAA;AAMD,yBAAgC,GAAqB;IACnD,EAAE,CAAC,CAAC,qBAAqB,IAAI,GAAG,YAAY,UAAU,CAAC,CAAC,CAAC;QACvD,MAAM,CAAC,iBAAiB,CAAC,GAAG,CAAC,CAAC;IAChC,CAAC;IAAC,IAAI,CAAC,EAAE,CAAC,CAAC,GAAG,YAAY,MAAM,CAAC,CAAC,CAAC;QACjC,MAAM,CAAC,GAAG,CAAC;IACb,CAAC;IAAC,IAAI,CAAC,CAAC;QACN,MAAM,CAAC,IAAI,MAAM,CAAY,GAAG,CAAC,CAAC;IACpC,CAAC;AACH,CAAC;AARe,uBAAe,kBAQ9B,CAAA;AAKD,2BAAkC,EAAc;IAC9C,EAAE,CAAC,CAAC,EAAE,CAAC,UAAU,KAAK,CAAC,IAAI,EAAE,CAAC,UAAU,KAAK,EAAE,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,CAAC;QAClE,MAAM,CAAC,kBAAkB,CAAC,EAAE,CAAC,CAAC;IAChC,CAAC;IAAC,IAAI,CAAC,CAAC;QACN,MAAM,CAAC,IAAI,MAAM,CAAC,EAAE,CAAC,CAAC;IACxB,CAAC;AACH,CAAC;AANe,yBAAiB,oBAMhC,CAAA;AAMD,4BAAmC,EAAe;IAChD,IAAI,CAAC;QAEH,MAAM,CAAC,IAAI,MAAM,CAAO,EAAE,CAAC,CAAC;IAC9B,CAAE;IAAA,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QAEX,MAAM,CAAC,IAAI,MAAM,CAAC,IAAI,UAAU,CAAC,EAAE,CAAC,CAAC,CAAC;IACxC,CAAC;AACH,CAAC;AARe,0BAAkB,qBAQjC,CAAA;AAID,EAAE,CAAC,CAAC,OAAM,CAAC,WAAW,CAAC,KAAK,WAAW,IAAI,OAAM,CAAC,UAAU,CAAC,KAAK,WAAW,CAAC,CAAC,CAAC;IAC9E,EAAE,CAAC,CAAC,CAAC,UAAU,CAAC,SAAS,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC;QACnC,UAAU,CAAC,SAAS,CAAC,KAAK,GAAG,UAAS,KAAiB,EAAE,GAAyB;YAA5C,qBAAiB,GAAjB,SAAiB;YAAE,mBAAyB,GAAzB,MAAc,IAAI,CAAC,MAAM;YAChF,IAAI,IAAI,GAAe,IAAI,CAAC;YAC5B,EAAE,CAAC,CAAC,KAAK,GAAG,CAAC,CAAC,CAAC,CAAC;gBACd,KAAK,GAAG,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;gBAC5B,EAAE,CAAC,CAAC,KAAK,GAAG,CAAC,CAAC,CAAC,CAAC;oBACd,KAAK,GAAG,CAAC,CAAC;gBACZ,CAAC;YACH,CAAC;YACD,EAAE,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC,CAAC,CAAC;gBACZ,GAAG,GAAG,IAAI,CAAC,MAAM,GAAG,GAAG,CAAC;gBACxB,EAAE,CAAC,CAAC,GAAG,GAAG,CAAC,CAAC,CAAC,CAAC;oBACZ,GAAG,GAAG,CAAC,CAAC;gBACV,CAAC;YACH,CAAC;YACD,EAAE,CAAC,CAAC,GAAG,GAAG,KAAK,CAAC,CAAC,CAAC;gBAChB,GAAG,GAAG,KAAK,CAAC;YACd,CAAC;YACD,MAAM,CAAC,IAAI,UAAU,CAAC,IAAI,CAAC,MAAM,EAAE,IAAI,CAAC,UAAU,GAAG,KAAK,EAAE,GAAG,GAAG,KAAK,CAAC,CAAC;QAC3E,CAAC,CAAC;IACJ,CAAC;AACH,CAAC;AAKD,sBAA6B,IAAY,EAAE,KAAiB,EAAE,GAAiB;IAApC,qBAAiB,GAAjB,SAAiB;IAAE,mBAAiB,GAAjB,MAAM,IAAI,CAAC,MAAM;IAC7E,EAAE,CAAC,CAAC,KAAK,GAAG,CAAC,IAAI,GAAG,GAAG,CAAC,IAAI,GAAG,GAAG,IAAI,CAAC,MAAM,IAAI,KAAK,GAAG,GAAG,CAAC,CAAC,CAAC;QAC7D,MAAM,IAAI,SAAS,CAAC,8CAA4C,IAAI,CAAC,MAAM,WAAM,KAAK,UAAK,GAAG,MAAG,CAAC,CAAC;IACrG,CAAC;IACD,EAAE,CAAC,CAAC,IAAI,CAAC,MAAM,KAAK,CAAC,CAAC,CAAC,CAAC;QAEtB,MAAM,CAAC,IAAI,MAAM,CAAC,CAAC,CAAC,CAAC;IACvB,CAAC;IAAC,IAAI,CAAC,EAAE,CAAC,CAAC,qBAAqB,CAAC,CAAC,CAAC;QACjC,IAAI,EAAE,GAAG,iBAAiB,CAAC,IAAI,CAAC,EAC9B,EAAE,GAAG,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,EACtB,KAAK,GAAG,CAAC,EAAE,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC;QAE1B,IAAI,CAAC,UAAU,CAAC,KAAK,EAAE,CAAC,CAAC,CAAC;QAC1B,EAAE,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,KAAK,KAAK,CAAC,CAAC,CAAC;YAEpB,EAAE,CAAC,CAAC,CAAC,GAAG,EAAE,CAAC;YACX,MAAM,CAAC,iBAAiB,CAAC,EAAE,CAAC,KAAK,CAAC,KAAK,EAAE,GAAG,CAAC,CAAC,CAAC;QACjD,CAAC;QAAC,IAAI,CAAC,CAAC;YAEN,IAAI,CAAC,UAAU,CAAC,EAAE,EAAE,CAAC,CAAC,CAAC;YACvB,MAAM,CAAC,iBAAiB,CAAC,EAAE,CAAC,QAAQ,CAAC,KAAK,EAAE,GAAG,CAAC,CAAC,CAAC;QACpD,CAAC;IACH,CAAC;IAAC,IAAI,CAAC,CAAC;QACN,IAAI,SAAS,GAAG,IAAI,MAAM,CAAC,GAAG,GAAG,KAAK,CAAC,CAAC;QACxC,IAAI,CAAC,IAAI,CAAC,SAAS,EAAE,CAAC,EAAE,KAAK,EAAE,GAAG,CAAC,CAAC;QACpC,MAAM,CAAC,SAAS,CAAC;IACnB,CAAC;AACH,CAAC;AA3Be,oBAAY,eA2B3B,CAAA","sourcesContent":["/**\n * Grab bag of utility functions used across the code.\n */\nimport {FileSystem} from './file_system';\nimport path = require('path');\n\nconst SUPPORTS_TYPED_ARRAYS = typeof(ArrayBuffer) !== 'undefined';\n\n/**\n * Checks for any IE version, including IE11 which removed MSIE from the\n * userAgent string.\n */\nexport var isIE: boolean = typeof navigator !== \"undefined\" && (/(msie) ([\\w.]+)/.exec(navigator.userAgent.toLowerCase()) != null || navigator.userAgent.indexOf('Trident') !== -1);\n\n/**\n * Check if we're in a web worker.\n */\nexport var isWebWorker: boolean = typeof window === \"undefined\";\n\nexport interface Arrayish<T> {\n  [idx: number]: T;\n  length: number;\n}\n\n/**\n * Synchronous recursive makedir.\n */\nexport function mkdirpSync(p: string, mode: number, fs: FileSystem): void {\n  if (!fs.existsSync(p)) {\n    mkdirpSync(path.dirname(p), mode, fs);\n    fs.mkdirSync(p, mode);\n  }\n}\n\n/**\n * Converts a buffer into an array buffer. Attempts to do so in a\n * zero-copy manner, e.g. the array references the same memory.\n */\nexport function buffer2ArrayBuffer(buff: Buffer): ArrayBuffer {\n  var u8 = buffer2Uint8array(buff),\n    u8offset = u8.byteOffset,\n    u8Len = u8.byteLength;\n  if (u8offset === 0 && u8Len === u8.buffer.byteLength) {\n    return u8.buffer;\n  } else {\n    return u8.buffer.slice(u8offset, u8offset + u8Len)\n  }\n}\n\n/**\n * Converts a buffer into a Uint8Array. Attempts to do so in a\n * zero-copy manner, e.g. the array references the same memory.\n */\nexport function buffer2Uint8array(buff: Buffer): Uint8Array {\n  if (buff['toUint8Array']) {\n    return (<any> buff).toUint8Array();\n  } else if (buff instanceof Uint8Array) {\n    // Node v4.0 buffers *are* Uint8Arrays.\n    return <any> buff;\n  } else {\n    // Uint8Arrays can be constructed from arrayish numbers.\n    // At this point, we assume this isn't a BFS array.\n    return new Uint8Array(buff);\n  }\n}\n\n/**\n * Converts the given buffer into a Uint8 arrayish form. Attempts\n * to be zero-copy.\n *\n * Required for BrowserFS buffers, which do not support indexing.\n */\nexport function buffer2Arrayish(buff: Buffer): Arrayish<number> {\n  if (typeof(buff[0]) === 'number') {\n    return buff;\n  } else if (SUPPORTS_TYPED_ARRAYS) {\n    return buffer2Uint8array(buff);\n  } else {\n    return buff.toJSON().data;\n  }\n}\n\n/**\n * Converts the given arrayish object into a Buffer. Attempts to\n * be zero-copy.\n */\nexport function arrayish2Buffer(arr: Arrayish<number>): Buffer {\n  if (SUPPORTS_TYPED_ARRAYS && arr instanceof Uint8Array) {\n    return uint8Array2Buffer(arr);\n  } else if (arr instanceof Buffer) {\n    return arr;\n  } else {\n    return new Buffer(<number[]> arr);\n  }\n}\n\n/**\n * Converts the given Uint8Array into a Buffer. Attempts to be zero-copy.\n */\nexport function uint8Array2Buffer(u8: Uint8Array): Buffer {\n  if (u8.byteOffset === 0 && u8.byteLength === u8.buffer.byteLength) {\n    return arrayBuffer2Buffer(u8);\n  } else {\n    return new Buffer(u8);\n  }\n}\n\n/**\n * Converts the given array buffer into a Buffer. Attempts to be\n * zero-copy.\n */\nexport function arrayBuffer2Buffer(ab: ArrayBuffer): Buffer {\n  try {\n    // Works in BFS and Node v4.2.\n    return new Buffer(<any> ab);\n  } catch (e) {\n    // I believe this copies, but there's no avoiding it in Node < v4.2\n    return new Buffer(new Uint8Array(ab));\n  }\n}\n\n// Polyfill for Uint8Array.prototype.slice.\n// Safari and some other browsers do not define it.\nif (typeof(ArrayBuffer) !== 'undefined' && typeof(Uint8Array) !== 'undefined') {\n  if (!Uint8Array.prototype['slice']) {\n    Uint8Array.prototype.slice = function(start: number = 0, end: number = this.length): Uint8Array {\n      let self: Uint8Array = this;\n      if (start < 0) {\n        start = this.length + start;\n        if (start < 0) {\n          start = 0;\n        }\n      }\n      if (end < 0) {\n        end = this.length + end;\n        if (end < 0) {\n          end = 0;\n        }\n      }\n      if (end < start) {\n        end = start;\n      }\n      return new Uint8Array(self.buffer, self.byteOffset + start, end - start);\n    };\n  }\n}\n\n/**\n * Copies a slice of the given buffer\n */\nexport function copyingSlice(buff: Buffer, start: number = 0, end = buff.length): Buffer {\n  if (start < 0 || end < 0 || end > buff.length || start > end) {\n    throw new TypeError(`Invalid slice bounds on buffer of length ${buff.length}: [${start}, ${end}]`);\n  }\n  if (buff.length === 0) {\n    // Avoid s0 corner case in ArrayBuffer case.\n    return new Buffer(0);\n  } else if (SUPPORTS_TYPED_ARRAYS) {\n    var u8 = buffer2Uint8array(buff),\n      s0 = buff.readUInt8(0),\n      newS0 = (s0 + 1) % 0xFF;\n\n    buff.writeUInt8(newS0, 0);\n    if (u8[0] === newS0) {\n      // Same memory. Revert & copy.\n      u8[0] = s0;\n      return uint8Array2Buffer(u8.slice(start, end));\n    } else {\n      // Revert.\n      buff.writeUInt8(s0, 0);\n      return uint8Array2Buffer(u8.subarray(start, end));\n    }\n  } else {\n    var buffSlice = new Buffer(end - start);\n    buff.copy(buffSlice, 0, start, end);\n    return buffSlice;\n  }\n}\n"]}