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this.flagStr.indexOf("a")!==-1},Se.prototype.isSynchronous=function(){return this.flagStr.indexOf("s")!==-1},Se.prototype.isExclusive=function(){return this.flagStr.indexOf("x")!==-1},Se.prototype.pathExistsAction=function(){return this.isExclusive()?we.THROW_EXCEPTION:this.isTruncating()?we.TRUNCATE_FILE:we.NOP},Se.prototype.pathNotExistsAction=function(){return(this.isWriteable()||this.isAppendable())&&"r+"!==this.flagStr?we.CREATE_FILE:we.THROW_EXCEPTION},Se.flagCache={},Se.validFlagStrs=["r","r+","rs","rs+","w","wx","w+","wx+","a","ax","a+","ax+"];var be;!function(t){t[t.FILE=32768]="FILE",t[t.DIRECTORY=16384]="DIRECTORY",t[t.SYMLINK=40960]="SYMLINK"}(be||(be={}));var ke=function(t,e,n,r,i,o){if(void 0===r&&(r=new Date),void 0===i&&(i=new Date),void 0===o&&(o=new Date),this.size=e,this.atime=r,this.mtime=i,this.ctime=o,this.dev=0,this.ino=0,this.rdev=0,this.nlink=1,this.blksize=4096,this.uid=0,this.gid=0,this.birthtime=new Date(0),this.fileData=null,n)this.mode=n;else switch(t){case be.FILE:this.mode=420;break;case be.DIRECTORY:default:this.mode=511}this.blocks=Math.ceil(e/512),this.mode<4096&&(this.mode|=t)};ke.fromBuffer=function(t){var e=t.readUInt32LE(0),n=t.readUInt32LE(4),r=t.readDoubleLE(8),i=t.readDoubleLE(16),o=t.readDoubleLE(24);return new ke(61440&n,e,4095&n,new Date(r),new Date(i),new Date(o))},ke.prototype.toBuffer=function(){var t=new r(32);return t.writeUInt32LE(this.size,0),t.writeUInt32LE(this.mode,4),t.writeDoubleLE(this.atime.getTime(),8),t.writeDoubleLE(this.mtime.getTime(),16),t.writeDoubleLE(this.ctime.getTime(),24),t},ke.prototype.clone=function(){return new ke(61440&this.mode,this.size,4095&this.mode,this.atime,this.mtime,this.ctime)},ke.prototype.isFile=function(){return(61440&this.mode)===be.FILE},ke.prototype.isDirectory=function(){return(61440&this.mode)===be.DIRECTORY},ke.prototype.isSymbolicLink=function(){return(61440&this.mode)===be.SYMLINK},ke.prototype.chmod=function(t){this.mode=61440&this.mode|t},ke.prototype.isSocket=function(){return!1},ke.prototype.isBlockDevice=function(){return!1},ke.prototype.isCharacterDevice=function(){return!1},ke.prototype.isFIFO=function(){return!1};var Ie=function(t,e){return t},Oe=function(){this.F_OK=0,this.R_OK=4,this.W_OK=2,this.X_OK=1,this.root=null,this.fdMap={},this.nextFd=100};Oe.prototype.initialize=function(t){if(!t.constructor.isAvailable())throw new me(ge.EINVAL,"Tried to instantiate BrowserFS with an unavailable file system.");return this.root=t},Oe.prototype._toUnixTimestamp=function(t){if("number"==typeof t)return t;if(t instanceof Date)return t.getTime()/1e3;throw new Error("Cannot parse time: "+t)},Oe.prototype.getRootFS=function(){return this.root?this.root:null},Oe.prototype.rename=function(t,e,n){void 0===n&&(n=h);var r=Ie(n,1);try{s(this.root).rename(u(t),u(e),r)}catch(t){r(t)}},Oe.prototype.renameSync=function(t,e){s(this.root).renameSync(u(t),u(e))},Oe.prototype.exists=function(t,e){void 0===e&&(e=h);var n=Ie(e,1);try{return s(this.root).exists(u(t),n)}catch(t){return n(!1)}},Oe.prototype.existsSync=function(t){try{return s(this.root).existsSync(u(t))}catch(t){return!1}},Oe.prototype.stat=function(t,e){void 0===e&&(e=h);var n=Ie(e,2);try{return s(this.root).stat(u(t),!1,n)}catch(t){return n(t)}},Oe.prototype.statSync=function(t){return s(this.root).statSync(u(t),!1)},Oe.prototype.lstat=function(t,e){void 0===e&&(e=h);var n=Ie(e,2);try{return s(this.root).stat(u(t),!0,n)}catch(t){return n(t)}},Oe.prototype.lstatSync=function(t){return s(this.root).statSync(u(t),!0)},Oe.prototype.truncate=function(t,e,n){void 0===e&&(e=0),void 0===n&&(n=h);var r=0;"function"==typeof e?n=e:"number"==typeof e&&(r=e);var i=Ie(n,1);try{if(r<0)throw new me(ge.EINVAL);return s(this.root).truncate(u(t),r,i)}catch(t){return i(t)}},Oe.prototype.truncateSync=function(t,e){if(void 0===e&&(e=0),e<0)throw new me(ge.EINVAL);return s(this.root).truncateSync(u(t),e)},Oe.prototype.unlink=function(t,e){void 0===e&&(e=h);var n=Ie(e,1);try{return s(this.root).unlink(u(t),n)}catch(t){return n(t)}},Oe.prototype.unlinkSync=function(t){return s(this.root).unlinkSync(u(t))},Oe.prototype.open=function(t,e,n,r){var i=this;void 0===r&&(r=h);var o=a(n,420);r="function"==typeof n?n:r;var c=Ie(r,2);try{s(this.root).open(u(t),Se.getFileFlag(e),o,function(t,e){e?c(t,i.getFdForFile(e)):c(t)})}catch(t){c(t)}},Oe.prototype.openSync=function(t,e,n){return void 0===n&&(n=420),this.getFdForFile(s(this.root).openSync(u(t),Se.getFileFlag(e),a(n,420)))},Oe.prototype.readFile=function(t,e,n){void 0===e&&(e={}),void 0===n&&(n=h);var r=f(e,null,"r",null);n="function"==typeof e?e:n;var i=Ie(n,2);try{var o=Se.getFileFlag(r.flag);return o.isReadable()?s(this.root).readFile(u(t),r.encoding,o,i):i(new me(ge.EINVAL,"Flag passed to readFile must allow for reading."))}catch(t){return i(t)}},Oe.prototype.readFileSync=function(t,e){void 0===e&&(e={});var n=f(e,null,"r",null),r=Se.getFileFlag(n.flag);if(!r.isReadable())throw new me(ge.EINVAL,"Flag passed to readFile must allow for reading.");return s(this.root).readFileSync(u(t),n.encoding,r)},Oe.prototype.writeFile=function(t,e,n,r){void 0===n&&(n={}),void 0===r&&(r=h);var i=f(n,"utf8","w",420);r="function"==typeof n?n:r;var o=Ie(r,1);try{var a=Se.getFileFlag(i.flag);return a.isWriteable()?s(this.root).writeFile(u(t),e,i.encoding,a,i.mode,o):o(new me(ge.EINVAL,"Flag passed to writeFile must allow for writing."))}catch(t){return o(t)}},Oe.prototype.writeFileSync=function(t,e,n){var r=f(n,"utf8","w",420),i=Se.getFileFlag(r.flag);if(!i.isWriteable())throw new me(ge.EINVAL,"Flag passed to writeFile must allow for writing.");return s(this.root).writeFileSync(u(t),e,r.encoding,i,r.mode)},Oe.prototype.appendFile=function(t,e,n,r){void 0===r&&(r=h);var i=f(n,"utf8","a",420);r="function"==typeof n?n:r;var o=Ie(r,1);try{var a=Se.getFileFlag(i.flag);if(!a.isAppendable())return o(new me(ge.EINVAL,"Flag passed to appendFile must allow for appending."));s(this.root).appendFile(u(t),e,i.encoding,a,i.mode,o)}catch(t){o(t)}},Oe.prototype.appendFileSync=function(t,e,n){var r=f(n,"utf8","a",420),i=Se.getFileFlag(r.flag);if(!i.isAppendable())throw new me(ge.EINVAL,"Flag passed to appendFile must allow for appending.");return s(this.root).appendFileSync(u(t),e,r.encoding,i,r.mode)},Oe.prototype.fstat=function(t,e){void 0===e&&(e=h);var n=Ie(e,2);try{var r=this.fd2file(t);r.stat(n)}catch(t){n(t)}},Oe.prototype.fstatSync=function(t){return this.fd2file(t).statSync()},Oe.prototype.close=function(t,e){var n=this;void 0===e&&(e=h);var r=Ie(e,1);try{this.fd2file(t).close(function(e){e||n.closeFd(t),r(e)})}catch(t){r(t)}},Oe.prototype.closeSync=function(t){this.fd2file(t).closeSync(),this.closeFd(t)},Oe.prototype.ftruncate=function(t,e,n){void 0===n&&(n=h);var r="number"==typeof e?e:0;n="function"==typeof e?e:n;var i=Ie(n,1);try{var o=this.fd2file(t);if(r<0)throw new me(ge.EINVAL);o.truncate(r,i)}catch(t){i(t)}},Oe.prototype.ftruncateSync=function(t,e){void 0===e&&(e=0);var n=this.fd2file(t);if(e<0)throw new me(ge.EINVAL);n.truncateSync(e)},Oe.prototype.fsync=function(t,e){void 0===e&&(e=h);var n=Ie(e,1);try{this.fd2file(t).sync(n)}catch(t){n(t)}},Oe.prototype.fsyncSync=function(t){this.fd2file(t).syncSync()},Oe.prototype.fdatasync=function(t,e){void 0===e&&(e=h);var n=Ie(e,1);try{this.fd2file(t).datasync(n)}catch(t){n(t)}},Oe.prototype.fdatasyncSync=function(t){this.fd2file(t).datasyncSync()},Oe.prototype.write=function(t,e,n,i,o,s){void 0===s&&(s=h);var a,c,u,f=null;if("string"==typeof e){var p="utf8";switch(typeof n){case"function":s=n;break;case"number":f=n,p="string"==typeof i?i:"utf8",s="function"==typeof o?o:s;break;default:return(s="function"==typeof i?i:"function"==typeof o?o:s)(new me(ge.EINVAL,"Invalid arguments."))}a=new r(e,p),c=0,u=a.length}else a=e,c=n,u=i,f="number"==typeof o?o:null,s="function"==typeof o?o:s;var l=Ie(s,3);try{var d=this.fd2file(t);void 0!==f&&null!==f||(f=d.getPos()),d.write(a,c,u,f,l)}catch(t){l(t)}},Oe.prototype.writeSync=function(t,e,n,i,o){var s,a,c,u=0;if("string"==typeof e){c="number"==typeof n?n:null;var f="string"==typeof i?i:"utf8";u=0,s=new r(e,f),a=s.length}else s=e,u=n,a=i,c="number"==typeof o?o:null;var h=this.fd2file(t);return void 0!==c&&null!==c||(c=h.getPos()),h.writeSync(s,u,a,c)},Oe.prototype.read=function(t,e,n,i,o,s){void 0===s&&(s=h);var a,c,u,f,p;if("number"==typeof e){u=e,a=n;var l=i;s="function"==typeof o?o:s,c=0,f=new r(u),p=Ie(function(t,e,n){return t?s(t):void s(t,n.toString(l),e)},3)}else f=e,c=n,u=i,a=o,p=Ie(s,3);try{var d=this.fd2file(t);void 0!==a&&null!==a||(a=d.getPos()),d.read(f,c,u,a,p)}catch(t){p(t)}},Oe.prototype.readSync=function(t,e,n,i,o){var s,a,c,u,f=!1,h="utf8";"number"==typeof e?(c=e,u=n,h=i,a=0,s=new r(c),f=!0):(s=e,a=n,c=i,u=o);var p=this.fd2file(t);void 0!==u&&null!==u||(u=p.getPos());var l=p.readSync(s,a,c,u);return f?[s.toString(h),l]:l},Oe.prototype.fchown=function(t,e,n,r){void 0===r&&(r=h);var i=Ie(r,1);try{this.fd2file(t).chown(e,n,i)}catch(t){i(t)}},Oe.prototype.fchownSync=function(t,e,n){this.fd2file(t).chownSync(e,n)},Oe.prototype.fchmod=function(t,e,n){var r=Ie(n,1);try{var i="string"==typeof e?parseInt(e,8):e;this.fd2file(t).chmod(i,r)}catch(t){r(t)}},Oe.prototype.fchmodSync=function(t,e){var n="string"==typeof e?parseInt(e,8):e;this.fd2file(t).chmodSync(n)},Oe.prototype.futimes=function(t,e,n,r){void 0===r&&(r=h);var i=Ie(r,1);try{var o=this.fd2file(t);"number"==typeof e&&(e=new Date(1e3*e)),"number"==typeof n&&(n=new Date(1e3*n)),o.utimes(e,n,i)}catch(t){i(t)}},Oe.prototype.futimesSync=function(t,e,n){this.fd2file(t).utimesSync(c(e),c(n))},Oe.prototype.rmdir=function(t,e){void 0===e&&(e=h);var n=Ie(e,1);try{t=u(t),s(this.root).rmdir(t,n)}catch(t){n(t)}},Oe.prototype.rmdirSync=function(t){return t=u(t),s(this.root).rmdirSync(t)},Oe.prototype.mkdir=function(t,e,n){void 0===n&&(n=h),"function"==typeof e&&(n=e,e=511);var r=Ie(n,1);try{t=u(t),s(this.root).mkdir(t,e,r)}catch(t){r(t)}},Oe.prototype.mkdirSync=function(t,e){s(this.root).mkdirSync(u(t),a(e,511))},Oe.prototype.readdir=function(t,e){void 0===e&&(e=h);var n=Ie(e,2);try{t=u(t),s(this.root).readdir(t,n)}catch(t){n(t)}},Oe.prototype.readdirSync=function(t){return t=u(t),s(this.root).readdirSync(t)},Oe.prototype.link=function(t,e,n){void 0===n&&(n=h);var r=Ie(n,1);try{t=u(t),e=u(e),s(this.root).link(t,e,r)}catch(t){r(t)}},Oe.prototype.linkSync=function(t,e){return t=u(t),e=u(e),s(this.root).linkSync(t,e)},Oe.prototype.symlink=function(t,e,n,r){void 0===r&&(r=h);var i="string"==typeof n?n:"file";r="function"==typeof n?n:r;var o=Ie(r,1);try{if("file"!==i&&"dir"!==i)return o(new me(ge.EINVAL,"Invalid type: "+i));t=u(t),e=u(e),s(this.root).symlink(t,e,i,o)}catch(t){o(t)}},Oe.prototype.symlinkSync=function(t,e,n){if(n){if("file"!==n&&"dir"!==n)throw new me(ge.EINVAL,"Invalid type: "+n)}else n="file";return t=u(t),e=u(e),s(this.root).symlinkSync(t,e,n)},Oe.prototype.readlink=function(t,e){void 0===e&&(e=h);var n=Ie(e,2);try{t=u(t),s(this.root).readlink(t,n)}catch(t){n(t)}},Oe.prototype.readlinkSync=function(t){return t=u(t),s(this.root).readlinkSync(t)},Oe.prototype.chown=function(t,e,n,r){void 0===r&&(r=h);var i=Ie(r,1);try{t=u(t),s(this.root).chown(t,!1,e,n,i)}catch(t){i(t)}},Oe.prototype.chownSync=function(t,e,n){t=u(t),s(this.root).chownSync(t,!1,e,n)},Oe.prototype.lchown=function(t,e,n,r){void 0===r&&(r=h);var i=Ie(r,1);try{t=u(t),s(this.root).chown(t,!0,e,n,i)}catch(t){i(t)}},Oe.prototype.lchownSync=function(t,e,n){t=u(t),s(this.root).chownSync(t,!0,e,n)},Oe.prototype.chmod=function(t,e,n){void 0===n&&(n=h);var r=Ie(n,1);try{var i=a(e,-1);if(i<0)throw new me(ge.EINVAL,"Invalid mode.");s(this.root).chmod(u(t),!1,i,r)}catch(t){r(t)}},Oe.prototype.chmodSync=function(t,e){var n=a(e,-1);if(n<0)throw new me(ge.EINVAL,"Invalid mode.");t=u(t),s(this.root).chmodSync(t,!1,n)},Oe.prototype.lchmod=function(t,e,n){void 0===n&&(n=h);var r=Ie(n,1);try{var i=a(e,-1);if(i<0)throw new me(ge.EINVAL,"Invalid mode.");s(this.root).chmod(u(t),!0,i,r)}catch(t){r(t)}},Oe.prototype.lchmodSync=function(t,e){var n=a(e,-1);if(n<1)throw new me(ge.EINVAL,"Invalid mode.");s(this.root).chmodSync(u(t),!0,n)},Oe.prototype.utimes=function(t,e,n,r){void 0===r&&(r=h);var i=Ie(r,1);try{s(this.root).utimes(u(t),c(e),c(n),i)}catch(t){i(t)}},Oe.prototype.utimesSync=function(t,e,n){s(this.root).utimesSync(u(t),c(e),c(n))},Oe.prototype.realpath=function(t,e,n){void 0===n&&(n=h);var r="object"==typeof e?e:{};n="function"==typeof e?e:h;var i=Ie(n,2);try{t=u(t),s(this.root).realpath(t,r,i)}catch(t){i(t)}},Oe.prototype.realpathSync=function(t,e){return void 0===e&&(e={}),t=u(t),s(this.root).realpathSync(t,e)},Oe.prototype.watchFile=function(t,e,n){throw void 0===n&&(n=h),new me(ge.ENOTSUP)},Oe.prototype.unwatchFile=function(t,e){throw void 0===e&&(e=h),new me(ge.ENOTSUP)},Oe.prototype.watch=function(t,e,n){throw void 0===n&&(n=h),new me(ge.ENOTSUP)},Oe.prototype.access=function(t,e,n){throw void 0===n&&(n=h),new me(ge.ENOTSUP)},Oe.prototype.accessSync=function(t,e){throw new me(ge.ENOTSUP)},Oe.prototype.createReadStream=function(t,e){throw new me(ge.ENOTSUP)},Oe.prototype.createWriteStream=function(t,e){throw new me(ge.ENOTSUP)},Oe.prototype.wrapCallbacks=function(t){Ie=t},Oe.prototype.getFdForFile=function(t){var e=this.nextFd++;return this.fdMap[e]=t,e},Oe.prototype.fd2file=function(t){var e=this.fdMap[t];if(e)return e;throw new me(ge.EBADF,"Invalid file descriptor.")},Oe.prototype.closeFd=function(t){delete this.fdMap[t]},Oe.Stats=ke;var Fe=new Oe,Re={},Ne=Oe.prototype;Object.keys(Ne).forEach(function(t){"function"==typeof Fe[t]?Re[t]=function(){return Fe[t].apply(Fe,arguments);
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e.ErrnoError(this.ERRNO_CODES[t.code])}},De.prototype.read=function(t,e,n,r,i){try{return this.nodefs.readSync(t.nfd,_(e),n,r,i)}catch(t){throw new this.FS.ErrnoError(this.ERRNO_CODES[t.code])}},De.prototype.write=function(t,e,n,r,i){try{return this.nodefs.writeSync(t.nfd,_(e),n,r,i)}catch(t){throw new this.FS.ErrnoError(this.ERRNO_CODES[t.code])}},De.prototype.llseek=function(t,e,n){var r=e;if(1===n)r+=t.position;else if(2===n&&this.FS.isFile(t.node.mode))try{var i=this.nodefs.fstatSync(t.nfd);r+=i.size}catch(t){throw new this.FS.ErrnoError(this.ERRNO_CODES[t.code])}if(r<0)throw new this.FS.ErrnoError(this.ERRNO_CODES.EINVAL);return t.position=r,r};var Ae=function(t){this.fs=t,this.nodefs=t.getNodeFS(),this.FS=t.getFS(),this.PATH=t.getPATH(),this.ERRNO_CODES=t.getERRNO_CODES()};Ae.prototype.getattr=function(t){var e,n=this.fs.realPath(t);try{e=this.nodefs.lstatSync(n)}catch(t){if(!t.code)throw t;throw new 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this.PATH},Pe.prototype.getERRNO_CODES=function(){return this.ERRNO_CODES};var Ce=function(){};Ce.prototype.supportsLinks=function(){return!1},Ce.prototype.diskSpace=function(t,e){e(0,0)},Ce.prototype.openFile=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.createFile=function(t,e,n,r){throw new me(ge.ENOTSUP)},Ce.prototype.open=function(t,e,n,r){var i=this,o=function(o,s){if(o)switch(e.pathNotExistsAction()){case we.CREATE_FILE:return i.stat(ye.dirname(t),!1,function(o,s){o?r(o):s&&!s.isDirectory()?r(me.ENOTDIR(ye.dirname(t))):i.createFile(t,e,n,r)});case we.THROW_EXCEPTION:return r(me.ENOENT(t));default:return r(new me(ge.EINVAL,"Invalid FileFlag object."))}else{if(s&&s.isDirectory())return r(me.EISDIR(t));switch(e.pathExistsAction()){case we.THROW_EXCEPTION:return r(me.EEXIST(t));case we.TRUNCATE_FILE:return i.openFile(t,e,function(t,e){t?r(t):e?e.truncate(0,function(){e.sync(function(){r(null,e)})}):p()});case we.NOP:return i.openFile(t,e,r);default:return r(new me(ge.EINVAL,"Invalid FileFlag object."))}}};this.stat(t,!1,o)},Ce.prototype.rename=function(t,e,n){n(new me(ge.ENOTSUP))},Ce.prototype.renameSync=function(t,e){throw new me(ge.ENOTSUP)},Ce.prototype.stat=function(t,e,n){n(new me(ge.ENOTSUP))},Ce.prototype.statSync=function(t,e){throw new me(ge.ENOTSUP)},Ce.prototype.openFileSync=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.createFileSync=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.openSync=function(t,e,n){var r;try{r=this.statSync(t,!1)}catch(r){switch(e.pathNotExistsAction()){case we.CREATE_FILE:var i=this.statSync(ye.dirname(t),!1);if(!i.isDirectory())throw me.ENOTDIR(ye.dirname(t));return this.createFileSync(t,e,n);case we.THROW_EXCEPTION:throw me.ENOENT(t);default:throw new me(ge.EINVAL,"Invalid FileFlag object.")}}if(r.isDirectory())throw me.EISDIR(t);switch(e.pathExistsAction()){case we.THROW_EXCEPTION:throw me.EEXIST(t);case we.TRUNCATE_FILE:return this.unlinkSync(t),this.createFileSync(t,e,r.mode);case we.NOP:return this.openFileSync(t,e,n);default:throw new me(ge.EINVAL,"Invalid FileFlag object.")}},Ce.prototype.unlink=function(t,e){e(new me(ge.ENOTSUP))},Ce.prototype.unlinkSync=function(t){throw new me(ge.ENOTSUP)},Ce.prototype.rmdir=function(t,e){e(new me(ge.ENOTSUP))},Ce.prototype.rmdirSync=function(t){throw new me(ge.ENOTSUP)},Ce.prototype.mkdir=function(t,e,n){n(new me(ge.ENOTSUP))},Ce.prototype.mkdirSync=function(t,e){throw new me(ge.ENOTSUP)},Ce.prototype.readdir=function(t,e){e(new me(ge.ENOTSUP))},Ce.prototype.readdirSync=function(t){throw new me(ge.ENOTSUP)},Ce.prototype.exists=function(t,e){this.stat(t,null,function(t){e(!t)})},Ce.prototype.existsSync=function(t){try{return this.statSync(t,!0),!0}catch(t){return!1}},Ce.prototype.realpath=function(t,e,n){if(this.supportsLinks())for(var r=t.split(ye.sep),i=0;i<r.length;i++){var o=r.slice(0,i+1);r[i]=ye.join.apply(null,o)}else 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i=this.openSync(t,n,420);try{var o=i.statSync(),s=new r(o.size);return i.readSync(s,0,o.size,0),i.closeSync(),null===e?s:s.toString(e)}finally{i.closeSync()}},Ce.prototype.writeFile=function(t,e,n,i,o,s){var a=s;this.open(t,i,420,function(t,i){if(t)return s(t);s=function(t){i.close(function(e){a(t?t:e)})};try{"string"==typeof e&&(e=new r(e,n))}catch(t){return s(t)}i.write(e,0,e.length,0,s)})},Ce.prototype.writeFileSync=function(t,e,n,i,o){var s=this.openSync(t,i,o);try{"string"==typeof e&&(e=new r(e,n)),s.writeSync(e,0,e.length,0)}finally{s.closeSync()}},Ce.prototype.appendFile=function(t,e,n,i,o,s){var a=s;this.open(t,i,o,function(t,i){return t?s(t):(s=function(t){i.close(function(e){a(t?t:e)})},"string"==typeof e&&(e=new r(e,n)),void i.write(e,0,e.length,null,s))})},Ce.prototype.appendFileSync=function(t,e,n,i,o){var s=this.openSync(t,i,o);try{"string"==typeof e&&(e=new r(e,n)),s.writeSync(e,0,e.length,null)}finally{s.closeSync()}},Ce.prototype.chmod=function(t,e,n,r){r(new me(ge.ENOTSUP))},Ce.prototype.chmodSync=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.chown=function(t,e,n,r,i){i(new me(ge.ENOTSUP))},Ce.prototype.chownSync=function(t,e,n,r){throw new me(ge.ENOTSUP)},Ce.prototype.utimes=function(t,e,n,r){r(new me(ge.ENOTSUP))},Ce.prototype.utimesSync=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.link=function(t,e,n){n(new me(ge.ENOTSUP))},Ce.prototype.linkSync=function(t,e){throw new me(ge.ENOTSUP)},Ce.prototype.symlink=function(t,e,n,r){r(new me(ge.ENOTSUP))},Ce.prototype.symlinkSync=function(t,e,n){throw new me(ge.ENOTSUP)},Ce.prototype.readlink=function(t,e){e(new me(ge.ENOTSUP))},Ce.prototype.readlinkSync=function(t){throw new me(ge.ENOTSUP)};var Ue=function(t){function e(){t.apply(this,arguments)}return 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t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getBuffer=function(){return this._buffer},e.prototype.getStats=function(){return this._stat},e.prototype.getFlag=function(){return this._flag},e.prototype.getPath=function(){return this._path},e.prototype.getPos=function(){return this._flag.isAppendable()?this._stat.size:this._pos},e.prototype.advancePos=function(t){return this._pos+=t},e.prototype.setPos=function(t){return this._pos=t},e.prototype.sync=function(t){try{this.syncSync(),t()}catch(e){t(e)}},e.prototype.syncSync=function(){throw new me(ge.ENOTSUP)},e.prototype.close=function(t){try{this.closeSync(),t()}catch(e){t(e)}},e.prototype.closeSync=function(){throw new me(ge.ENOTSUP)},e.prototype.stat=function(t){try{t(null,this._stat.clone())}catch(e){t(e)}},e.prototype.statSync=function(){return 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0===n?r(me.ENOENT(e)):r(null,Xr.fromBuffer(n)))})},e.prototype.getDirListing=function(t,e,n,r){n.isDirectory()?t.get(n.id,function(t,n){if(It(t,r))try{r(null,JSON.parse(n.toString()))}catch(t){r(me.ENOENT(e))}}):r(me.ENOTDIR(e))},e.prototype.findINodeAndDirListing=function(t,e,n){var r=this;this.findINode(t,e,function(i,o){It(i,n)&&r.getDirListing(t,e,o,function(t,e){It(t,n)&&n(null,o,e)})})},e.prototype.addNewNode=function(t,e,n){var r,i=0,o=function(){5===++i?n(new me(ge.EIO,"Unable to commit data to key-value store.")):(r=kt(),t.put(r,e,!1,function(t,e){t||!e?o():n(null,r)}))};o()},e.prototype.commitNewFile=function(t,e,n,i,o,s){var a=this,c=ye.dirname(e),u=ye.basename(e),f=(new Date).getTime();return"/"===e?s(me.EEXIST(e)):void this.findINodeAndDirListing(t,c,function(c,h,p){Ot(c,t,s)&&(p[u]?t.abort(function(){s(me.EEXIST(e))}):a.addNewNode(t,o,function(e,c){if(Ot(e,t,s)){var l=new Xr(c,o.length,i|n,f,f,f);a.addNewNode(t,l.toBuffer(),function(e,n){Ot(e,t,s)&&(p[u]=n,t.put(h.id,new 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this.store[t]},ei.prototype.put=function(t,e,n){return!(!n&&this.store.hasOwnProperty(t))&&(this.store[t]=e,!0)},ei.prototype.del=function(t){delete this.store[t]};var ni=function(t){function e(){t.call(this,{store:new ei})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(Qr),ri=_e.indexedDB||_e.mozIndexedDB||_e.webkitIndexedDB||_e.msIndexedDB,ii=function(t,e){this.tx=t,this.store=e};ii.prototype.get=function(t,e){try{var n=this.store.get(t);n.onerror=Rt(e),n.onsuccess=function(t){var n=t.target.result;void 0===n?e(null,n):e(null,v(n))}}catch(t){e(Ft(t))}};var oi=function(t){function e(e,n){t.call(this,e,n)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.put=function(t,e,n,r){try{var i,o=d(e);i=n?this.store.put(o,t):this.store.add(o,t),i.onerror=Rt(r),i.onsuccess=function(t){r(null,!0)}}catch(t){r(Ft(t))}},e.prototype.del=function(t,e){try{var n=this.store.delete(t);n.onerror=Rt(e),n.onsuccess=function(t){e()}}catch(t){e(Ft(t))}},e.prototype.commit=function(t){setTimeout(t,0)},e.prototype.abort=function(t){var e=null;try{this.tx.abort()}catch(t){e=Ft(t)}finally{t(e)}},e}(ii),si=function(t,e){var n=this;void 0===e&&(e="browserfs"),this.storeName=e;var r=ri.open(this.storeName,1);r.onupgradeneeded=function(t){var e=t.target.result;e.objectStoreNames.contains(n.storeName)&&e.deleteObjectStore(n.storeName),e.createObjectStore(n.storeName)},r.onsuccess=function(e){n.db=e.target.result,t(null,n)},r.onerror=Rt(t,ge.EACCES)};si.prototype.name=function(){return"IndexedDB - "+this.storeName},si.prototype.clear=function(t){try{var e=this.db.transaction(this.storeName,"readwrite"),n=e.objectStore(this.storeName),r=n.clear();r.onsuccess=function(e){setTimeout(t,0)},r.onerror=Rt(t)}catch(e){t(Ft(e))}},si.prototype.beginTransaction=function(t){void 0===t&&(t="readonly");var e=this.db.transaction(this.storeName,t),n=e.objectStore(this.storeName);if("readwrite"===t)return new oi(e,n);if("readonly"===t)return new ii(e,n);throw new me(ge.EINVAL,"Invalid transaction type.")};var ai,ci=function(t){function e(e,n){var r=this;t.call(this);var i=new si(function(t){t?e(t):r.init(i,function(t){e(t,r)})},n)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){try{return"undefined"!=typeof ri&&null!==ri.open("__browserfs_test__")}catch(t){return!1}},e}(ti),ui=!1;try{_e.localStorage.setItem("__test__",String.fromCharCode(55296)),ui=_e.localStorage.getItem("__test__")===String.fromCharCode(55296)}catch(t){ui=!1}ai=ui?"binary_string":"binary_string_ie",r.isEncoding(ai)||(ai="base64");var fi=function(){};fi.prototype.name=function(){return"LocalStorage"},fi.prototype.clear=function(){_e.localStorage.clear()},fi.prototype.beginTransaction=function(t){return new Gr(this)},fi.prototype.get=function(t){try{var e=_e.localStorage.getItem(t);if(null!==e)return new r(e,ai)}catch(t){}},fi.prototype.put=function(t,e,n){try{return!(!n&&null!==_e.localStorage.getItem(t))&&(_e.localStorage.setItem(t,e.toString(ai)),!0)}catch(t){throw new me(ge.ENOSPC,"LocalStorage is full.")}},fi.prototype.del=function(t){try{_e.localStorage.removeItem(t)}catch(e){throw new me(ge.EIO,"Unable to delete key "+t+": "+e)}};for(var hi=function(t){function e(){t.call(this,{store:new fi})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){return"undefined"!=typeof _e.localStorage},e}(Qr),pi=function(t){function e(){t.call(this),this.mountList=[],this.mntMap={},this.rootFs=new ni}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){return!0},e.prototype.mount=function(t,e){if("/"!==t[0]&&(t="/"+t),t=ye.resolve(t),this.mntMap[t])throw new me(ge.EINVAL,"Mount point "+t+" is already taken.");l(t,511,this.rootFs),this.mntMap[t]=e,this.mountList.push(t),this.mountList=this.mountList.sort(function(t,e){return e.length-t.length})},e.prototype.umount=function(t){var e=this;if("/"!==t[0]&&(t="/"+t),t=ye.resolve(t),!this.mntMap[t])throw new me(ge.EINVAL,"Mount point "+t+" is already unmounted.");for(delete this.mntMap[t],this.mountList.splice(this.mountList.indexOf(t),1);"/"!==t&&0===e.rootFs.readdirSync(t).length;)e.rootFs.rmdirSync(t),t=ye.dirname(t)},e.prototype._getFs=function(t){for(var e=this,n=this.mountList,r=n.length,i=0;i<r;i++){var o=n[i];if(o.length<=t.length&&0===t.indexOf(o))return t=t.substr(o.length>1?o.length:0),""===t&&(t="/"),{fs:e.mntMap[o],path:t}}return{fs:this.rootFs,path:t}},e.prototype.getName=function(){return"MountableFileSystem"},e.prototype.diskSpace=function(t,e){e(0,0)},e.prototype.isReadOnly=function(){return!1},e.prototype.supportsLinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!0},e.prototype.standardizeError=function(t,e,n){var r=t.message.indexOf(e);return r!==-1&&(t.message=t.message.substr(0,r)+n+t.message.substr(r+e.length),t.path=n),t},e.prototype.rename=function(t,e,n){var r=this,i=this._getFs(t),o=this._getFs(e);return i.fs===o.fs?i.fs.rename(i.path,o.path,function(s){s&&r.standardizeError(r.standardizeError(s,i.path,t),o.path,e),n(s)}):Re.readFile(t,function(r,i){return r?n(r):void Re.writeFile(e,i,function(e){return e?n(e):void Re.unlink(t,n)})})},e.prototype.renameSync=function(t,e){var n=this._getFs(t),r=this._getFs(e);if(n.fs===r.fs)try{return n.fs.renameSync(n.path,r.path)}catch(i){throw this.standardizeError(this.standardizeError(i,n.path,t),r.path,e),i}var i=Re.readFileSync(t);return Re.writeFileSync(e,i),Re.unlinkSync(t)},e.prototype.readdirSync=function(t){var e=this._getFs(t),n=null;if(e.fs!==this.rootFs)try{n=this.rootFs.readdirSync(t)}catch(t){}try{var r=e.fs.readdirSync(e.path);return null===n?r:r.concat(n.filter(function(t){return r.indexOf(t)===-1}))}catch(r){if(null===n)throw this.standardizeError(r,e.path,t);return n}},e.prototype.readdir=function(t,e){var n=this,r=this._getFs(t);r.fs.readdir(r.path,function(i,o){if(r.fs!==n.rootFs)try{var s=n.rootFs.readdirSync(t);o=o?o.concat(s.filter(function(t){return o.indexOf(t)===-1})):s}catch(o){if(i)return e(n.standardizeError(i,r.path,t))}else if(i)return e(n.standardizeError(i,r.path,t));e(null,o)})},e.prototype.rmdirSync=function(t){var e=this._getFs(t);if(this._containsMountPt(t))throw me.ENOTEMPTY(t);try{e.fs.rmdirSync(e.path)}catch(n){throw this.standardizeError(n,e.path,t)}},e.prototype.rmdir=function(t,e){var n=this,r=this._getFs(t);this._containsMountPt(t)?e(me.ENOTEMPTY(t)):r.fs.rmdir(r.path,function(i){e(i?n.standardizeError(i,r.path,t):null)})},e.prototype._containsMountPt=function(t){for(var e=this.mountList,n=e.length,r=0;r<n;r++){var i=e[r];if(i.length>=t.length&&i.slice(0,t.length)===t)return!0}return!1},e}(Ce),li=[["exists","unlink","readlink"],["stat","mkdir","realpath","truncate"],["open","readFile","chmod","utimes"],["chown"],["writeFile","appendFile"]],di=0;di<li.length;di++)for(var yi=li[di],gi=0;gi<yi.length;gi++){var _i=yi[gi];pi.prototype[_i]=Nt(_i,!1,di+1),pi.prototype[_i+"Sync"]=Nt(_i+"Sync",!0,di+1)}var vi=function(){this._locked=!1,this._waiters=[]};vi.prototype.lock=function(t){return this._locked?void this._waiters.push(t):(this._locked=!0,void t())},vi.prototype.unlock=function(){if(!this._locked)throw new Error("unlock of a non-locked mutex");var t=this._waiters.shift();return t?void setImmediate(t):void(this._locked=!1)},vi.prototype.tryLock=function(){return!this._locked&&(this._locked=!0,!0)},vi.prototype.isLocked=function(){return this._locked};var wi=function(t){this._fs=t,this._mu=new vi};wi.prototype.getName=function(){return"LockedFS<"+this._fs.getName()+">"},wi.prototype.getFSUnlocked=function(){return this._fs},wi.prototype.initialize=function(t){this._fs.initialize(t)},wi.prototype.diskSpace=function(t,e){this._fs.diskSpace(t,e)},wi.prototype.isReadOnly=function(){return this._fs.isReadOnly()},wi.prototype.supportsLinks=function(){return this._fs.supportsLinks()},wi.prototype.supportsProps=function(){return this._fs.supportsProps()},wi.prototype.supportsSynch=function(){return this._fs.supportsSynch()},wi.prototype.rename=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.rename(t,e,function(t){r._mu.unlock(),n(t)})})},wi.prototype.renameSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.renameSync(t,e)},wi.prototype.stat=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.stat(t,e,function(t,e){r._mu.unlock(),n(t,e)})})},wi.prototype.statSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.statSync(t,e)},wi.prototype.open=function(t,e,n,r){var i=this;this._mu.lock(function(){i._fs.open(t,e,n,function(t,e){i._mu.unlock(),r(t,e)})})},wi.prototype.openSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.openSync(t,e,n)},wi.prototype.unlink=function(t,e){var n=this;this._mu.lock(function(){n._fs.unlink(t,function(t){n._mu.unlock(),e(t)})})},wi.prototype.unlinkSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.unlinkSync(t)},wi.prototype.rmdir=function(t,e){var n=this;this._mu.lock(function(){n._fs.rmdir(t,function(t){n._mu.unlock(),e(t)})})},wi.prototype.rmdirSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.rmdirSync(t)},wi.prototype.mkdir=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.mkdir(t,e,function(t){r._mu.unlock(),n(t)})})},wi.prototype.mkdirSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.mkdirSync(t,e)},wi.prototype.readdir=function(t,e){var n=this;this._mu.lock(function(){n._fs.readdir(t,function(t,r){n._mu.unlock(),e(t,r)})})},wi.prototype.readdirSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readdirSync(t)},wi.prototype.exists=function(t,e){var n=this;this._mu.lock(function(){n._fs.exists(t,function(t){n._mu.unlock(),e(t)})})},wi.prototype.existsSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.existsSync(t)},wi.prototype.realpath=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.realpath(t,e,function(t,e){r._mu.unlock(),n(t,e)})})},wi.prototype.realpathSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.realpathSync(t,e)},wi.prototype.truncate=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.truncate(t,e,function(t){r._mu.unlock(),n(t)})})},wi.prototype.truncateSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.truncateSync(t,e)},wi.prototype.readFile=function(t,e,n,r){var i=this;this._mu.lock(function(){i._fs.readFile(t,e,n,function(t,e){i._mu.unlock(),r(t,e)})})},wi.prototype.readFileSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readFileSync(t,e,n)},wi.prototype.writeFile=function(t,e,n,r,i,o){var s=this;this._mu.lock(function(){s._fs.writeFile(t,e,n,r,i,function(t){s._mu.unlock(),o(t)})})},wi.prototype.writeFileSync=function(t,e,n,r,i){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.writeFileSync(t,e,n,r,i)},wi.prototype.appendFile=function(t,e,n,r,i,o){var s=this;
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call");return this._fs.utimesSync(t,e,n)},wi.prototype.link=function(t,e,n){var r=this;this._mu.lock(function(){r._fs.link(t,e,function(t){r._mu.unlock(),n(t)})})},wi.prototype.linkSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.linkSync(t,e)},wi.prototype.symlink=function(t,e,n,r){var i=this;this._mu.lock(function(){i._fs.symlink(t,e,n,function(t){i._mu.unlock(),r(t)})})},wi.prototype.symlinkSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.symlinkSync(t,e,n)},wi.prototype.readlink=function(t,e){var n=this;this._mu.lock(function(){n._fs.readlink(t,function(t,r){n._mu.unlock(),e(t,r)})})},wi.prototype.readlinkSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readlinkSync(t)};var mi,Ei="/.deletedFiles.log",Si=function(t){function e(e,n,r,i,o){t.call(this,e,n,r,i,o)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.sync=function(t){var e=this;return this.isDirty()?void this._fs._syncAsync(this,function(n){e.resetDirty(),t(n)}):void t(null)},e.prototype.syncSync=function(){this.isDirty()&&(this._fs._syncSync(this),this.resetDirty())},e.prototype.close=function(t){this.sync(t)},e.prototype.closeSync=function(){this.syncSync()},e}(Be),bi=function(t){function e(e,n){if(t.call(this),this._isInitialized=!1,this._initializeCallbacks=[],this._deletedFiles={},this._deleteLog="",this._deleteLogUpdatePending=!1,this._deleteLogUpdateNeeded=!1,this._deleteLogError=null,this._writable=e,this._readable=n,this._writable.isReadOnly())throw new me(ge.EINVAL,"Writable file system must be writable.")}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){return!0},e.prototype.getOverlayedFileSystems=function(){return{readable:this._readable,writable:this._writable}},e.prototype._syncAsync=function(t,e){var n=this;this.createParentDirectoriesAsync(t.getPath(),function(r){return r?e(r):void n._writable.writeFile(t.getPath(),t.getBuffer(),null,Tt("w"),t.getStats().mode,e)})},e.prototype._syncSync=function(t){this.createParentDirectories(t.getPath()),this._writable.writeFileSync(t.getPath(),t.getBuffer(),null,Tt("w"),t.getStats().mode)},e.prototype.getName=function(){return"OverlayFS"},e.prototype.initialize=function(t){var e=this,n=this._initializeCallbacks,r=function(t){e._isInitialized=!t,e._initializeCallbacks=[],n.forEach(function(e){return e(t)})};return this._isInitialized?t():(n.push(t),void(1===n.length&&this._writable.readFile(Ei,"utf8",Tt("r"),function(t,n){if(t){if(t.errno!==ge.ENOENT)return r(t)}else e._deleteLog=n;e._reparseDeletionLog(),r()})))},e.prototype.isReadOnly=function(){return!1},e.prototype.supportsSynch=function(){return this._readable.supportsSynch()&&this._writable.supportsSynch()},e.prototype.supportsLinks=function(){return!1},e.prototype.supportsProps=function(){return this._readable.supportsProps()&&this._writable.supportsProps()},e.prototype.getDeletionLog=function(){return this._deleteLog},e.prototype.restoreDeletionLog=function(t){this._deleteLog=t,this._reparseDeletionLog(),this.updateLog("")},e.prototype.rename=function(t,e,n){var r=this;if(this.checkInitAsync(n)&&!this.checkPathAsync(t,n)&&!this.checkPathAsync(e,n))return t===Ei||e===Ei?n(me.EPERM("Cannot rename deletion log.")):t===e?n():void this.stat(t,!1,function(i,o){return i?n(i):r.stat(e,!1,function(i,s){function a(r){var i=r.shift();if(!i)return n();var o=ye.resolve(t,i),s=ye.resolve(e,i);c.rename(o,s,function(t){return t?n(t):void a(r)})}var c=r,u=511;if(o.isDirectory()){if(i)return i.errno!==ge.ENOENT?n(i):r._writable.exists(t,function(i){return i?r._writable.rename(t,e,n):void r._writable.mkdir(e,u,function(e){return e?n(e):void r._readable.readdir(t,function(t,e){return t?n():void a(e)})})});if(u=s.mode,!s.isDirectory())return n(me.ENOTDIR(e));r.readdir(e,function(i,o){return o&&o.length?n(me.ENOTEMPTY(e)):void r._readable.readdir(t,function(t,e){return t?n():void a(e)})})}return s&&s.isDirectory()?n(me.EISDIR(e)):void r.readFile(t,null,Tt("r"),function(i,s){return i?n(i):r.writeFile(e,s,null,Tt("w"),o.mode,function(e){return e?n(e):r.unlink(t,n)})})})})},e.prototype.renameSync=function(t,e){var n=this;if(this.checkInitialized(),this.checkPath(t),this.checkPath(e),t===Ei||e===Ei)throw me.EPERM("Cannot rename deletion log.");var r=this.statSync(t,!1);if(r.isDirectory()){if(t===e)return;var i=511;if(this.existsSync(e)){var o=this.statSync(e,!1);if(i=o.mode,!o.isDirectory())throw me.ENOTDIR(e);if(this.readdirSync(e).length>0)throw me.ENOTEMPTY(e)}this._writable.existsSync(t)?this._writable.renameSync(t,e):this._writable.existsSync(e)||this._writable.mkdirSync(e,i),this._readable.existsSync(t)&&this._readable.readdirSync(t).forEach(function(r){n.renameSync(ye.resolve(t,r),ye.resolve(e,r))})}else{if(this.existsSync(e)&&this.statSync(e,!1).isDirectory())throw me.EISDIR(e);this.writeFileSync(e,this.readFileSync(t,null,Tt("r")),null,Tt("w"),r.mode)}t!==e&&this.existsSync(t)&&this.unlinkSync(t)},e.prototype.stat=function(t,e,n){var r=this;this.checkInitAsync(n)&&this._writable.stat(t,e,function(i,o){i&&i.errno===ge.ENOENT?(r._deletedFiles[t]&&n(me.ENOENT(t)),r._readable.stat(t,e,function(t,e){e&&(e=e.clone(),e.mode=Lt(e.mode)),n(t,e)})):n(i,o)})},e.prototype.statSync=function(t,e){this.checkInitialized();try{return this._writable.statSync(t,e)}catch(r){if(this._deletedFiles[t])throw me.ENOENT(t);var n=this._readable.statSync(t,e).clone();return n.mode=Lt(n.mode),n}},e.prototype.open=function(t,e,n,r){var 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we.NOP:if(this._writable.existsSync(t))return this._writable.openSync(t,e,n);var r=this._readable.readFileSync(t,null,Tt("r")),i=this._readable.statSync(t,!1).clone();return i.mode=n,new Si(this,t,e,i,r);default:throw me.EEXIST(t)}else switch(e.pathNotExistsAction()){case we.CREATE_FILE:return this.createParentDirectories(t),this._writable.openSync(t,e,n);default:throw me.ENOENT(t)}},e.prototype.unlink=function(t,e){var n=this;this.checkInitAsync(e)&&!this.checkPathAsync(t,e)&&this.exists(t,function(r){return r?void n._writable.exists(t,function(r){return r?n._writable.unlink(t,function(r){return r?e(r):void n.exists(t,function(r){r&&n.deletePath(t),e(null)})}):(n.deletePath(t),void e(null))}):e(me.ENOENT(t))})},e.prototype.unlinkSync=function(t){if(this.checkInitialized(),this.checkPath(t),!this.existsSync(t))throw me.ENOENT(t);this._writable.existsSync(t)&&this._writable.unlinkSync(t),this.existsSync(t)&&this.deletePath(t)},e.prototype.rmdir=function(t,e){var n=this;if(this.checkInitAsync(e)){var r=function(){n.readdir(t,function(r,i){return r?e(r):i.length?e(me.ENOTEMPTY(t)):(n.deletePath(t),void e(null))})};this.exists(t,function(i){return i?void n._writable.exists(t,function(i){i?n._writable.rmdir(t,function(i){return i?e(i):void n._readable.exists(t,function(t){t?r():e()})}):r()}):e(me.ENOENT(t))})}},e.prototype.rmdirSync=function(t){if(this.checkInitialized(),!this.existsSync(t))throw me.ENOENT(t);if(this._writable.existsSync(t)&&this._writable.rmdirSync(t),this.existsSync(t)){if(this.readdirSync(t).length>0)throw me.ENOTEMPTY(t);this.deletePath(t)}},e.prototype.mkdir=function(t,e,n){var r=this;this.checkInitAsync(n)&&this.exists(t,function(i){return i?n(me.EEXIST(t)):void r.createParentDirectoriesAsync(t,function(i){return i?n(i):void r._writable.mkdir(t,e,n)})})},e.prototype.mkdirSync=function(t,e){if(this.checkInitialized(),this.existsSync(t))throw me.EEXIST(t);this.createParentDirectories(t),this._writable.mkdirSync(t,e)},e.prototype.readdir=function(t,e){var n=this;this.checkInitAsync(e)&&this.stat(t,!1,function(r,i){return r?e(r):i.isDirectory()?void n._writable.readdir(t,function(r,i){return r&&"ENOENT"!==r.code?e(r):(!r&&i||(i=[]),void n._readable.readdir(t,function(r,o){!r&&o||(o=[]);var s={},a=i.concat(o.filter(function(e){return!n._deletedFiles[t+"/"+e]})).filter(function(t){var e=!s[t];return s[t]=!0,e});e(null,a)}))}):e(me.ENOTDIR(t))})},e.prototype.readdirSync=function(t){var e=this;this.checkInitialized();var n=this.statSync(t,!1);if(!n.isDirectory())throw me.ENOTDIR(t);var r=[];try{r=r.concat(this._writable.readdirSync(t))}catch(t){}try{r=r.concat(this._readable.readdirSync(t).filter(function(n){return!e._deletedFiles[t+"/"+n]}))}catch(t){}var i={};return r.filter(function(t){var e=!i[t];return i[t]=!0,e})},e.prototype.exists=function(t,e){var n=this;this.checkInitialized(),this._writable.exists(t,function(r){return r?e(!0):void n._readable.exists(t,function(r){e(r&&n._deletedFiles[t]!==!0)})})},e.prototype.existsSync=function(t){return this.checkInitialized(),this._writable.existsSync(t)||this._readable.existsSync(t)&&this._deletedFiles[t]!==!0},e.prototype.chmod=function(t,e,n,r){var i=this;this.checkInitAsync(r)&&this.operateOnWritableAsync(t,function(o){return o?r(o):void i._writable.chmod(t,e,n,r)})},e.prototype.chmodSync=function(t,e,n){var r=this;this.checkInitialized(),this.operateOnWritable(t,function(){r._writable.chmodSync(t,e,n)})},e.prototype.chown=function(t,e,n,r,i){var o=this;this.checkInitAsync(i)&&this.operateOnWritableAsync(t,function(s){return s?i(s):void o._writable.chown(t,e,n,r,i)})},e.prototype.chownSync=function(t,e,n,r){var i=this;this.checkInitialized(),this.operateOnWritable(t,function(){i._writable.chownSync(t,e,n,r)})},e.prototype.utimes=function(t,e,n,r){var i=this;this.checkInitAsync(r)&&this.operateOnWritableAsync(t,function(o){return o?r(o):void i._writable.utimes(t,e,n,r)})},e.prototype.utimesSync=function(t,e,n){var r=this;this.checkInitialized(),this.operateOnWritable(t,function(){r._writable.utimesSync(t,e,n)})},e.prototype.deletePath=function(t){this._deletedFiles[t]=!0,this.updateLog("d"+t+"\n")},e.prototype.updateLog=function(t){var e=this;this._deleteLog+=t,this._deleteLogUpdatePending?this._deleteLogUpdateNeeded=!0:(this._deleteLogUpdatePending=!0,this._writable.writeFile(Ei,this._deleteLog,"utf8",Se.getFileFlag("w"),420,function(t){e._deleteLogUpdatePending=!1,t?e._deleteLogError=t:e._deleteLogUpdateNeeded&&(e._deleteLogUpdateNeeded=!1,e.updateLog(""))}))},e.prototype._reparseDeletionLog=function(){var t=this;this._deletedFiles={},this._deleteLog.split("\n").forEach(function(e){t._deletedFiles[e.slice(1)]="d"===e.slice(0,1)})},e.prototype.checkInitialized=function(){if(!this._isInitialized)throw new me(ge.EPERM,"OverlayFS is not initialized. Please initialize OverlayFS using its initialize() method before using it.");if(null!==this._deleteLogError){var t=this._deleteLogError;throw this._deleteLogError=null,t}},e.prototype.checkInitAsync=function(t){if(!this._isInitialized)return t(new me(ge.EPERM,"OverlayFS is not initialized. Please initialize OverlayFS using its initialize() method before using it.")),!1;if(null!==this._deleteLogError){var e=this._deleteLogError;return this._deleteLogError=null,t(e),!1}return!0},e.prototype.checkPath=function(t){if(t===Ei)throw me.EPERM(t)},e.prototype.checkPathAsync=function(t,e){return t===Ei&&(e(me.EPERM(t)),!0)},e.prototype.createParentDirectoriesAsync=function(t,e){function n(t,e){t?(o.push(i),i=ye.dirname(i),s._writable.stat(i,!1,n)):r()}function r(){if(!o.length)return e();var t=o.pop();s._readable.stat(t,!1,function(n,i){return i?void s._writable.mkdir(t,i.mode,function(t){return t?e(t):void r()}):e()})}var i=ye.dirname(t),o=[],s=this;this._writable.stat(i,!1,n)},e.prototype.createParentDirectories=function(t){for(var e=this,n=ye.dirname(t),r=[];!this._writable.existsSync(n);)r.push(n),n=ye.dirname(n);r=r.reverse(),r.forEach(function(t){e._writable.mkdirSync(t,e.statSync(t,!1).mode)})},e.prototype.operateOnWritable=function(t,e){if(!this.existsSync(t))throw 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a=0;a<o.length;a++)s[a]=n(o[a],s);var c=Re.getRootFS();c[r.method].apply(c,s)}}})},e.prototype.getName=function(){return"WorkerFS"},e.prototype._argLocal2Remote=function(t){if(!t)return t;switch(typeof t){case"object":return t instanceof ke?Ct(t):t instanceof me?xt(t):t instanceof Fi?t.toRemoteArg():t instanceof Se?Mt(t):t instanceof r?qt(t):t instanceof Error?At(t):"Unknown argument";case"function":return this._callbackConverter.toRemoteArg(t);default:return t}},e.prototype.initialize=function(t){var e=this;if(this._isInitialized)t();else{var n={browserfsMessage:!0,method:"probe",args:[this._argLocal2Remote(new r(0)),this._callbackConverter.toRemoteArg(function(n){e._isInitialized=!0,e._isReadOnly=n.isReadOnly,e._supportLinks=n.supportsLinks,e._supportProps=n.supportsProps,t()})]};this._worker.postMessage(n)}},e.prototype.isReadOnly=function(){return this._isReadOnly},e.prototype.supportsSynch=function(){return!1},e.prototype.supportsLinks=function(){return this._supportLinks},e.prototype.supportsProps=function(){return this._supportProps},e.prototype.rename=function(t,e,n){this._rpc("rename",arguments)},e.prototype.stat=function(t,e,n){this._rpc("stat",arguments)},e.prototype.open=function(t,e,n,r){this._rpc("open",arguments)},e.prototype.unlink=function(t,e){this._rpc("unlink",arguments)},e.prototype.rmdir=function(t,e){this._rpc("rmdir",arguments)},e.prototype.mkdir=function(t,e,n){this._rpc("mkdir",arguments)},e.prototype.readdir=function(t,e){this._rpc("readdir",arguments)},e.prototype.exists=function(t,e){this._rpc("exists",arguments)},e.prototype.realpath=function(t,e,n){this._rpc("realpath",arguments)},e.prototype.truncate=function(t,e,n){this._rpc("truncate",arguments)},e.prototype.readFile=function(t,e,n,r){this._rpc("readFile",arguments)},e.prototype.writeFile=function(t,e,n,r,i,o){this._rpc("writeFile",arguments)},e.prototype.appendFile=function(t,e,n,r,i,o){this._rpc("appendFile",arguments)},e.prototype.chmod=function(t,e,n,r){this._rpc("chmod",arguments)},e.prototype.chown=function(t,e,n,r,i){this._rpc("chown",arguments)},e.prototype.utimes=function(t,e,n,r){this._rpc("utimes",arguments)},e.prototype.link=function(t,e,n){this._rpc("link",arguments)},e.prototype.symlink=function(t,e,n,r){this._rpc("symlink",arguments)},e.prototype.readlink=function(t,e){this._rpc("readlink",arguments)},e.prototype.syncClose=function(t,e,n){this._worker.postMessage({browserfsMessage:!0,method:t,args:[e.toRemoteArg(),this._callbackConverter.toRemoteArg(n)]})},e.prototype._argRemote2Local=function(t){if(!t)return 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Ci,Ui=n(23).inflateRaw,Mi={};!function(t){t[t.MSDOS=0]="MSDOS",t[t.AMIGA=1]="AMIGA",t[t.OPENVMS=2]="OPENVMS",t[t.UNIX=3]="UNIX",t[t.VM_CMS=4]="VM_CMS",t[t.ATARI_ST=5]="ATARI_ST",t[t.OS2_HPFS=6]="OS2_HPFS",t[t.MAC=7]="MAC",t[t.Z_SYSTEM=8]="Z_SYSTEM",t[t.CP_M=9]="CP_M",t[t.NTFS=10]="NTFS",t[t.MVS=11]="MVS",t[t.VSE=12]="VSE",t[t.ACORN_RISC=13]="ACORN_RISC",t[t.VFAT=14]="VFAT",t[t.ALT_MVS=15]="ALT_MVS",t[t.BEOS=16]="BEOS",t[t.TANDEM=17]="TANDEM",t[t.OS_400=18]="OS_400",t[t.OSX=19]="OSX"}(Ci||(Ci={}));var Bi;!function(t){t[t.STORED=0]="STORED",t[t.SHRUNK=1]="SHRUNK",t[t.REDUCED_1=2]="REDUCED_1",t[t.REDUCED_2=3]="REDUCED_2",t[t.REDUCED_3=4]="REDUCED_3",t[t.REDUCED_4=5]="REDUCED_4",t[t.IMPLODE=6]="IMPLODE",t[t.DEFLATE=8]="DEFLATE",t[t.DEFLATE64=9]="DEFLATE64",t[t.TERSE_OLD=10]="TERSE_OLD",t[t.BZIP2=12]="BZIP2",t[t.LZMA=14]="LZMA",t[t.TERSE_NEW=18]="TERSE_NEW",t[t.LZ77=19]="LZ77",t[t.WAVPACK=97]="WAVPACK",t[t.PPMD=98]="PPMD"}(Bi||(Bi={}));var ji=function(t){if(this.data=t,67324752!==t.readUInt32LE(0))throw new me(ge.EINVAL,"Invalid Zip file: Local file header has invalid signature: "+this.data.readUInt32LE(0))};ji.prototype.versionNeeded=function(){return this.data.readUInt16LE(4)},ji.prototype.flags=function(){return this.data.readUInt16LE(6)},ji.prototype.compressionMethod=function(){return this.data.readUInt16LE(8)},ji.prototype.lastModFileTime=function(){return ee(this.data.readUInt16LE(10),this.data.readUInt16LE(12))},ji.prototype.rawLastModFileTime=function(){return this.data.readUInt32LE(10)},ji.prototype.crc32=function(){return this.data.readUInt32LE(14)},ji.prototype.fileNameLength=function(){return this.data.readUInt16LE(26)},ji.prototype.extraFieldLength=function(){return this.data.readUInt16LE(28)},ji.prototype.fileName=function(){return ne(this.data,this.useUTF8(),30,this.fileNameLength())},ji.prototype.extraField=function(){var t=30+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},ji.prototype.totalSize=function(){return 30+this.fileNameLength()+this.extraFieldLength()},ji.prototype.useUTF8=function(){return 2048===(2048&this.flags())};var zi=function(t,e,n){this.header=t,this.record=e,this.data=n};zi.prototype.decompress=function(){var t=this.header.compressionMethod(),e=Mi[t];if(e)return e(this.data,this.record.compressedSize(),this.record.uncompressedSize(),this.record.flag());
var n=Bi[t];throw n||(n="Unknown: "+t),new me(ge.EINVAL,"Invalid compression method on file '"+this.header.fileName()+"': "+n)},zi.prototype.getHeader=function(){return this.header},zi.prototype.getRecord=function(){return this.record},zi.prototype.getRawData=function(){return this.data};var qi=function(t){this.data=t};qi.prototype.crc32=function(){return this.data.readUInt32LE(0)},qi.prototype.compressedSize=function(){return this.data.readUInt32LE(4)},qi.prototype.uncompressedSize=function(){return this.data.readUInt32LE(8)};var Vi=function(t){if(this.data=t,134630224!==this.data.readUInt32LE(0))throw new me(ge.EINVAL,"Invalid archive extra data record signature: "+this.data.readUInt32LE(0))};Vi.prototype.length=function(){return this.data.readUInt32LE(4)},Vi.prototype.extraFieldData=function(){return this.data.slice(8,8+this.length())};var Wi=function(t){if(this.data=t,84233040!==this.data.readUInt32LE(0))throw new me(ge.EINVAL,"Invalid digital signature signature: 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this.data.readUInt32LE(20)},Hi.prototype.uncompressedSize=function(){return this.data.readUInt32LE(24)},Hi.prototype.fileNameLength=function(){return this.data.readUInt16LE(28)},Hi.prototype.extraFieldLength=function(){return this.data.readUInt16LE(30)},Hi.prototype.fileCommentLength=function(){return this.data.readUInt16LE(32)},Hi.prototype.diskNumberStart=function(){return this.data.readUInt16LE(34)},Hi.prototype.internalAttributes=function(){return this.data.readUInt16LE(36)},Hi.prototype.externalAttributes=function(){return this.data.readUInt32LE(38)},Hi.prototype.headerRelativeOffset=function(){return this.data.readUInt32LE(42)},Hi.prototype.produceFilename=function(){var t=ne(this.data,this.useUTF8(),46,this.fileNameLength());return t.replace(/\\/g,"/")},Hi.prototype.fileName=function(){return this._filename},Hi.prototype.rawFileName=function(){return this.data.slice(46,46+this.fileNameLength())},Hi.prototype.extraField=function(){var t=44+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},Hi.prototype.fileComment=function(){var t=46+this.fileNameLength()+this.extraFieldLength();return ne(this.data,this.useUTF8(),t,this.fileCommentLength())},Hi.prototype.rawFileComment=function(){var t=46+this.fileNameLength()+this.extraFieldLength();return this.data.slice(t,t+this.fileCommentLength())},Hi.prototype.totalSize=function(){return 46+this.fileNameLength()+this.extraFieldLength()+this.fileCommentLength()},Hi.prototype.isDirectory=function(){var t=this.fileName();return!!(16&this.externalAttributes())||"/"===t.charAt(t.length-1)},Hi.prototype.isFile=function(){return!this.isDirectory()},Hi.prototype.useUTF8=function(){return 2048===(2048&this.flag())},Hi.prototype.isEncrypted=function(){return 1===(1&this.flag())},Hi.prototype.getFileData=function(){var t=this.headerRelativeOffset(),e=new ji(this.zipData.slice(t));return new zi(e,this,this.zipData.slice(t+e.totalSize()))},Hi.prototype.getData=function(){return this.getFileData().decompress()},Hi.prototype.getRawData=function(){return this.getFileData().getRawData()},Hi.prototype.getStats=function(){return new ke(be.FILE,this.uncompressedSize(),365,new Date,this.lastModFileTime())};var Zi=function(t){if(this.data=t,101010256!==this.data.readUInt32LE(0))throw new me(ge.EINVAL,"Invalid Zip file: End of central directory record has invalid signature: "+this.data.readUInt32LE(0))};Zi.prototype.diskNumber=function(){return this.data.readUInt16LE(4)},Zi.prototype.cdDiskNumber=function(){return this.data.readUInt16LE(6)},Zi.prototype.cdDiskEntryCount=function(){return this.data.readUInt16LE(8)},Zi.prototype.cdTotalEntryCount=function(){return this.data.readUInt16LE(10)},Zi.prototype.cdSize=function(){return this.data.readUInt32LE(12)},Zi.prototype.cdOffset=function(){return this.data.readUInt32LE(16)},Zi.prototype.cdZipCommentLength=function(){return this.data.readUInt16LE(20)},Zi.prototype.cdZipComment=function(){return ne(this.data,!0,22,this.cdZipCommentLength())},Zi.prototype.rawCdZipComment=function(){return this.data.slice(22,22+this.cdZipCommentLength())};var Yi=function(t,e,n,r){this.index=t,this.directoryEntries=e,this.eocd=n,this.data=r},Xi=function(t){function e(e,n){void 0===n&&(n=""),t.call(this),this.name=n,this._index=new Ti,this._directoryEntries=[],this._eocd=null,e instanceof Yi?(this._index=e.index,this._directoryEntries=e.directoryEntries,this._eocd=e.eocd,this.data=e.data):(this.data=e,this.populateIndex())}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){return!0},e.RegisterDecompressionMethod=function(t,e){Mi[t]=e},e.computeIndex=function(t,n){var r=new Ti,i=e.getEOCD(t);if(i.diskNumber()!==i.cdDiskNumber())throw new me(ge.EINVAL,"ZipFS does not support spanned zip files.");var o=i.cdOffset();if(4294967295===o)throw new me(ge.EINVAL,"ZipFS does not support Zip64.");var s=o+i.cdSize();e.computeIndexResponsive(t,r,o,s,n,[],i)},e.getEOCD=function(t){for(var e=22,n=Math.min(e+65535,t.length-1),r=e;r<n;r++)if(101010256===t.readUInt32LE(t.length-r))return new Zi(t.slice(t.length-r));throw new me(ge.EINVAL,"Invalid ZIP file: Could not locate End of Central Directory signature.")},e.addToIndex=function(t,e){var n=t.fileName();if("/"===n.charAt(0))throw new Error("WHY IS THIS ABSOLUTE");"/"===n.charAt(n.length-1)&&(n=n.substr(0,n.length-1)),t.isDirectory()?e.addPathFast("/"+n,new Di(t)):e.addPathFast("/"+n,new xi(t))},e.computeIndexResponsive=function(t,n,r,i,o,s,a){if(r<i){for(var c=0;c++<200&&r<i;){var u=new Hi(t,t.slice(r));e.addToIndex(u,n),r+=u.totalSize(),s.push(u)}setImmediate(function(){e.computeIndexResponsive(t,n,r,i,o,s,a)})}else o(new Yi(n,s,a,t))},e.prototype.getName=function(){return"ZipFS"+(""!==this.name?" "+this.name:"")},e.prototype.getCentralDirectoryEntry=function(t){var e=this._index.getInode(t);if(null===e)throw me.ENOENT(t);if(Qt(e))return e.getData();if($t(e))return e.getData();throw me.EPERM("Invalid inode: "+e)},e.prototype.getCentralDirectoryEntryAt=function(t){var e=this._directoryEntries[t];if(!e)throw new RangeError("Invalid directory index: "+t+".");return e},e.prototype.getNumberOfCentralDirectoryEntries=function(){return this._directoryEntries.length},e.prototype.getEndOfCentralDirectory=function(){return this._eocd},e.prototype.diskSpace=function(t,e){e(this.data.length,0)},e.prototype.isReadOnly=function(){return!0},e.prototype.supportsLinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!0},e.prototype.statSync=function(t,e){var n=this._index.getInode(t);if(null===n)throw me.ENOENT(t);var r;if(Qt(n))r=n.getData().getStats();else{if(!$t(n))throw new me(ge.EINVAL,"Invalid inode.");r=n.getStats()}return r},e.prototype.openSync=function(t,e,n){if(e.isWriteable())throw new me(ge.EPERM,t);var r=this._index.getInode(t);if(!r)throw me.ENOENT(t);if(!Qt(r))throw me.EISDIR(t);var i=r.getData(),o=i.getStats();switch(e.pathExistsAction()){case we.THROW_EXCEPTION:case we.TRUNCATE_FILE:throw me.EEXIST(t);case we.NOP:return new je(this,t,e,o,i.getData());default:throw new me(ge.EINVAL,"Invalid FileMode object.")}},e.prototype.readdirSync=function(t){var e=this._index.getInode(t);if(e){if($t(e))return e.getListing();throw me.ENOTDIR(t)}throw me.ENOENT(t)},e.prototype.readFileSync=function(t,e,n){var r=this.openSync(t,n,420);try{var i=r,o=i.getBuffer();return null===e?w(o):o.toString(e)}finally{r.closeSync()}},e.prototype.populateIndex=function(){var t=this,n=this._eocd=e.getEOCD(this.data);if(n.diskNumber()!==n.cdDiskNumber())throw new me(ge.EINVAL,"ZipFS does not support spanned zip files.");var r=n.cdOffset();if(4294967295===r)throw new me(ge.EINVAL,"ZipFS does not support Zip64.");for(var i=r+n.cdSize();r<i;){var o=new Hi(t.data,t.data.slice(r));r+=o.totalSize(),e.addToIndex(o,t._index),t._directoryEntries.push(o)}},e}(Ue);Xi.CompressionMethod=Bi,Xi.RegisterDecompressionMethod(Bi.DEFLATE,function(t,e,n){return g(Ui(t.slice(0,e),{chunkSize:n}))}),Xi.RegisterDecompressionMethod(Bi.STORED,function(t,e,n){return w(t,0,n)});var Ki="IEEE_P1282",Gi=function(t){this._data=t};Gi.prototype.type=function(){return this._data[0]},Gi.prototype.standardIdentifier=function(){return re(this._data,1,5)},Gi.prototype.version=function(){return this._data[6]},Gi.prototype.data=function(){return this._data.slice(7,2048)};var Ji=function(t){function e(e){t.call(this,e),this._root=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.systemIdentifier=function(){return this._getString32(8)},e.prototype.volumeIdentifier=function(){return this._getString32(40)},e.prototype.volumeSpaceSize=function(){return this._data.readUInt32LE(80)},e.prototype.volumeSetSize=function(){return this._data.readUInt16LE(120)},e.prototype.volumeSequenceNumber=function(){return this._data.readUInt16LE(124)},e.prototype.logicalBlockSize=function(){return this._data.readUInt16LE(128)},e.prototype.pathTableSize=function(){return this._data.readUInt32LE(132)},e.prototype.locationOfTypeLPathTable=function(){return this._data.readUInt32LE(140)},e.prototype.locationOfOptionalTypeLPathTable=function(){return this._data.readUInt32LE(144)},e.prototype.locationOfTypeMPathTable=function(){return this._data.readUInt32BE(148)},e.prototype.locationOfOptionalTypeMPathTable=function(){return this._data.readUInt32BE(152)},e.prototype.rootDirectoryEntry=function(t){return null===this._root&&(this._root=this._constructRootDirectoryRecord(this._data.slice(156)),this._root.rootCheckForRockRidge(t)),this._root},e.prototype.volumeSetIdentifier=function(){return this._getString(190,128)},e.prototype.publisherIdentifier=function(){return this._getString(318,128)},e.prototype.dataPreparerIdentifier=function(){return this._getString(446,128)},e.prototype.applicationIdentifier=function(){return this._getString(574,128)},e.prototype.copyrightFileIdentifier=function(){return this._getString(702,38)},e.prototype.abstractFileIdentifier=function(){return this._getString(740,36)},e.prototype.bibliographicFileIdentifier=function(){return this._getString(776,37)},e.prototype.volumeCreationDate=function(){return oe(this._data,813)},e.prototype.volumeModificationDate=function(){return oe(this._data,830)},e.prototype.volumeExpirationDate=function(){return oe(this._data,847)},e.prototype.volumeEffectiveDate=function(){return oe(this._data,864)},e.prototype.fileStructureVersion=function(){return this._data[881]},e.prototype.applicationUsed=function(){return this._data.slice(883,1395)},e.prototype.reserved=function(){return this._data.slice(1395,2048)},e.prototype._getString32=function(t){return this._getString(t,32)},e}(Gi),Qi=function(t){function e(e){if(t.call(this,e),1!==this.type())throw new me(ge.EIO,"Invalid primary volume descriptor.")}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.name=function(){return"ISO9660"},e.prototype._constructRootDirectoryRecord=function(t){return new eo(t,-1)},e.prototype._getString=function(t,e){return this._getString(t,e)},e}(Ji),$i=function(t){function e(e){if(t.call(this,e),2!==this.type())throw new me(ge.EIO,"Invalid supplementary volume descriptor.");var n=this.escapeSequence(),r=n[2];if(37!==n[0]||47!==n[1]||64!==r&&67!==r&&69!==r)throw new me(ge.EIO,"Unrecognized escape sequence for SupplementaryVolumeDescriptor: "+n.toString())}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.name=function(){return"Joliet"},e.prototype.escapeSequence=function(){return this._data.slice(88,120)},e.prototype._constructRootDirectoryRecord=function(t){return new no(t,-1)},e.prototype._getString=function(t,e){return ie(this._data,t,e)},e}(Ji),to=function(t,e){this._suEntries=null,this._fileOrDir=null,this._data=t,this._rockRidgeOffset=e};to.prototype.hasRockRidge=function(){return this._rockRidgeOffset>-1},to.prototype.getRockRidgeOffset=function(){return this._rockRidgeOffset},to.prototype.rootCheckForRockRidge=function(t){var e=this.getDirectory(t);this._rockRidgeOffset=e.getDotEntry(t)._getRockRidgeOffset(t),this._rockRidgeOffset>-1&&(this._fileOrDir=null)},to.prototype.length=function(){return this._data[0]},to.prototype.extendedAttributeRecordLength=function(){return this._data[1]},to.prototype.lba=function(){return 2048*this._data.readUInt32LE(2)},to.prototype.dataLength=function(){return this._data.readUInt32LE(10)},to.prototype.recordingDate=function(){return se(this._data,18)},to.prototype.fileFlags=function(){return this._data[25]},to.prototype.fileUnitSize=function(){return this._data[26]},to.prototype.interleaveGapSize=function(){return this._data[27]},to.prototype.volumeSequenceNumber=function(){return this._data.readUInt16LE(28)},to.prototype.identifier=function(){return this._getString(33,this._data[32])},to.prototype.fileName=function(t){if(this.hasRockRidge()){var e=this._rockRidgeFilename(t);if(null!==e)return e}var n=this.identifier();if(this.isDirectory(t))return n;var r=n.indexOf(";");return r===-1?n:"."===n[r-1]?n.slice(0,r-1):n.slice(0,r)},to.prototype.isDirectory=function(t){var e=!!(2&this.fileFlags());return!e&&this.hasRockRidge()&&(e=this.getSUEntries(t).filter(function(t){return t instanceof _o}).length>0),e},to.prototype.isSymlink=function(t){return this.hasRockRidge()&&this.getSUEntries(t).filter(function(t){return t instanceof lo}).length>0},to.prototype.getSymlinkPath=function(t){for(var e="",n=this.getSUEntries(t),r=this._getGetString(),i=0;i<n.length;i++){var o=n[i];if(o instanceof lo){for(var s=o.componentRecords(),a=0;a<s.length;a++){var c=s[a],u=c.flags();2&u?e+="./":4&u?e+="../":8&u?e+="/":(e+=c.content(r),1&u||(e+="/"))}if(!o.continueFlag())break}}return e.length>1&&"/"===e[e.length-1]?e.slice(0,e.length-1):e},to.prototype.getFile=function(t){if(this.isDirectory(t))throw new Error("Tried to get a File from a directory.");return null===this._fileOrDir&&(this._fileOrDir=t.slice(this.lba(),this.lba()+this.dataLength())),this._fileOrDir},to.prototype.getDirectory=function(t){if(!this.isDirectory(t))throw new Error("Tried to get a Directory from a file.");return null===this._fileOrDir&&(this._fileOrDir=this._constructDirectory(t)),this._fileOrDir},to.prototype.getSUEntries=function(t){return this._suEntries||this._constructSUEntries(t),this._suEntries},to.prototype._rockRidgeFilename=function(t){var e=this.getSUEntries(t).filter(function(t){return t instanceof go});if(0===e.length||6&e[0].flags())return null;for(var n="",r=this._getGetString(),i=0;i<e.length;i++){var o=e[i];if(n+=o.name(r),!(1&o.flags()))break}return n},to.prototype._constructSUEntries=function(t){var e=33+this._data[32];e%2===1&&e++,e+=this._rockRidgeOffset,this._suEntries=ce(this._data,e,this.length(),t)},to.prototype._getRockRidgeOffset=function(t){this._rockRidgeOffset=0;var e=this.getSUEntries(t);if(e.length>0){var n=e[0];if(n instanceof so&&n.checkBytesPass())for(var r=1;r<e.length;r++){var i=e[r];if(i instanceof fo||i instanceof co&&i.extensionIdentifier()===Ki)return n.bytesSkipped()}}return this._rockRidgeOffset=-1,-1};var eo=function(t){function e(e,n){t.call(this,e,n)}return 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t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.continuationLba=function(){return this._data.readUInt32LE(4)},e.prototype.continuationLbaOffset=function(){return this._data.readUInt32LE(12)},e.prototype.continuationLength=function(){return this._data.readUInt32LE(20)},e.prototype.getEntries=function(t){if(!this._entries){var e=2048*this.continuationLba()+this.continuationLbaOffset();this._entries=ce(t,e,this.continuationLength(),t)}return this._entries},e}(ro),oo=function(t){function e(e){t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(ro),so=function(t){function e(e){t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.checkBytesPass=function(){return 190===this._data[4]&&239===this._data[5]},e.prototype.bytesSkipped=function(){return this._data[6]},e}(ro),ao=function(t){function 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this._data.readUInt32LE(4)},e.prototype.devTLow=function(){return this._data.readUInt32LE(12)},e}(ro),lo=function(t){function e(e){t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.flags=function(){return this._data[4]},e.prototype.continueFlag=function(){return 1&this.flags()},e.prototype.componentRecords=function(){for(var t=this,e=new Array,n=5;n<this.length();){var r=new yo(t._data.slice(n));e.push(r),n+=r.length()}return e},e}(ro),yo=function(t){this._data=t};yo.prototype.flags=function(){return this._data[0]},yo.prototype.length=function(){return 2+this.componentLength()},yo.prototype.componentLength=function(){return this._data[1]},yo.prototype.content=function(t){return t(this._data,2,this.componentLength())};var go=function(t){function e(e){t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.flags=function(){return 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1&this.flags()?this._longFormDates()?oe(this._data,5):se(this._data,5):null},e.prototype.modify=function(){if(2&this.flags()){var t=1&this.flags()?1:0;return this._longFormDates?oe(this._data,5+17*t):se(this._data,5+7*t)}return null},e.prototype.access=function(){if(4&this.flags()){var t=1&this.flags()?1:0;return t+=2&this.flags()?1:0,this._longFormDates?oe(this._data,5+17*t):se(this._data,5+7*t)}return null},e.prototype.backup=function(){if(16&this.flags()){var t=1&this.flags()?1:0;return t+=2&this.flags()?1:0,t+=4&this.flags()?1:0,this._longFormDates?oe(this._data,5+17*t):se(this._data,5+7*t)}return null},e.prototype.expiration=function(){if(32&this.flags()){var t=1&this.flags()?1:0;return t+=2&this.flags()?1:0,t+=4&this.flags()?1:0,t+=16&this.flags()?1:0,this._longFormDates?oe(this._data,5+17*t):se(this._data,5+7*t)}return null},e.prototype.effective=function(){if(64&this.flags()){var t=1&this.flags()?1:0;return t+=2&this.flags()?1:0,t+=4&this.flags()?1:0,t+=16&this.flags()?1:0,t+=32&this.flags()?1:0,this._longFormDates?oe(this._data,5+17*t):se(this._data,5+7*t)}return null},e.prototype._longFormDates=function(){return!!this.flags()},e}(ro),Eo=function(t){function e(e){t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.virtualSizeHigh=function(){return this._data.readUInt32LE(4)},e.prototype.virtualSizeLow=function(){return this._data.readUInt32LE(12)},e.prototype.tableDepth=function(){return this._data[20]},e}(ro),So=function(t,e){var n=this;this._fileList=[],this._fileMap={},this._record=t;var r=t.lba(),i=r+t.dataLength();if(!(2&t.fileFlags())){var o=t.getSUEntries(e).filter(function(t){return t instanceof _o})[0];r=2048*o.childDirectoryLba(),i=1/0}for(;r<i;){var s=e[r];if(0!==s){var a=n._constructDirectoryRecord(e.slice(r)),c=a.fileName(e);"\0"!==c&&"
"!==c?a.hasRockRidge()&&0!==a.getSUEntries(e).filter(function(t){return t instanceof wo}).length||(n._fileMap[c]=a,n._fileList.push(c)):i===1/0&&(i=r+a.dataLength()),r+=a.length()}else r++}};So.prototype.getRecord=function(t){return this._fileMap[t]},So.prototype.getFileList=function(){return this._fileList},So.prototype.getDotEntry=function(t){return this._constructDirectoryRecord(t.slice(this._record.lba()))};var bo=function(t){function e(e,n){t.call(this,e,n)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._constructDirectoryRecord=function(t){return new eo(t,this._record.getRockRidgeOffset())},e}(So),ko=function(t){function e(e,n){t.call(this,e,n)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype._constructDirectoryRecord=function(t){return new no(t,this._record.getRockRidgeOffset())},e}(So),Io=function(t){function e(e,n){var r=this;void 0===n&&(n=""),t.call(this),this._data=e;for(var i=!1,o=32768,s=new Array;!i;){var a=e.slice(o),c=new Gi(a);switch(c.type()){case 1:s.push(new Qi(a));break;case 2:s.push(new $i(a));break;case 255:i=!0}o+=2048}if(0===s.length)throw new me(ge.EIO,"Unable to find a suitable volume descriptor.");s.forEach(function(t){r._pvd&&2===r._pvd.type()||(r._pvd=t)}),this._root=this._pvd.rootDirectoryEntry(e),this._name=n}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.isAvailable=function(){return!0},e.prototype.getName=function(){var t="IsoFS"+this._name+"-"+this._pvd.name();return this._root.hasRockRidge()&&(t+="-RockRidge"),t},e.prototype.diskSpace=function(t,e){e(this._data.length,0)},e.prototype.isReadOnly=function(){return!0},e.prototype.supportsLinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!0},e.prototype.statSync=function(t,e){var n=this._getDirectoryRecord(t);if(null===n)throw me.ENOENT(t);return this._getStats(t,n)},e.prototype.openSync=function(t,e,n){if(e.isWriteable())throw new me(ge.EPERM,t);var r=this._getDirectoryRecord(t);if(!r)throw me.ENOENT(t);if(r.isSymlink(this._data))return this.openSync(ye.resolve(t,r.getSymlinkPath(this._data)),e,n);if(r.isDirectory(this._data))throw me.EISDIR(t);var i=r.getFile(this._data),o=this._getStats(t,r);switch(e.pathExistsAction()){case we.THROW_EXCEPTION:case we.TRUNCATE_FILE:throw me.EEXIST(t);case we.NOP:return new je(this,t,e,o,i);default:throw new me(ge.EINVAL,"Invalid FileMode object.")}},e.prototype.readdirSync=function(t){var e=this._getDirectoryRecord(t);if(e){if(e.isDirectory(this._data))return e.getDirectory(this._data).getFileList().slice(0);throw me.ENOTDIR(t)}throw me.ENOENT(t)},e.prototype.readFileSync=function(t,e,n){var r=this.openSync(t,n,420);try{var i=r,o=i.getBuffer();return null===e?w(o):o.toString(e)}finally{r.closeSync()}},e.prototype._getDirectoryRecord=function(t){var e=this;if("/"===t)return this._root;for(var n=t.split("/").slice(1),r=this._root,i=0;i<n.length;i++){if(!r.isDirectory(e._data))return null;if(r=r.getDirectory(e._data).getRecord(n[i]),!r)return null}return r},e.prototype._getStats=function(t,e){if(e.isSymlink(this._data)){var n=ye.resolve(t,e.getSymlinkPath(this._data)),r=this._getDirectoryRecord(n);return r?this._getStats(n,r):null}var i=e.dataLength(),o=365,s=e.recordingDate(),a=s,c=s,u=s;if(e.hasRockRidge())for(var f=e.getSUEntries(this._data),h=0;h<f.length;h++){var p=f[h];if(p instanceof ho)o=p.mode();else if(p instanceof mo){var l=p.flags();4&l&&(a=p.access()),2&l&&(c=p.modify()),1&l&&(u=p.creation())}}return o&=365,new 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   * @license  MIT
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a=r;a<s;a++)t=t>>>8^o[255&(t^e[a])];return t^-1}var i=n();t.exports=r},function(t,e){"use strict";function n(){this.text=0,this.time=0,this.xflags=0,this.os=0,this.extra=null,this.extra_len=0,this.name="",this.comment="",this.hcrc=0,this.done=!1}t.exports=n},function(t,e){"use strict";var n=30,r=12;t.exports=function(t,e){var i,o,s,a,c,u,f,h,p,l,d,y,g,_,v,w,m,E,S,b,k,I,O,F,R;i=t.state,o=t.next_in,F=t.input,s=o+(t.avail_in-5),a=t.next_out,R=t.output,c=a-(e-t.avail_out),u=a+(t.avail_out-257),f=i.dmax,h=i.wsize,p=i.whave,l=i.wnext,d=i.window,y=i.hold,g=i.bits,_=i.lencode,v=i.distcode,w=(1<<i.lenbits)-1,m=(1<<i.distbits)-1;t:do{g<15&&(y+=F[o++]<<g,g+=8,y+=F[o++]<<g,g+=8),E=_[y&w];e:for(;;){if(S=E>>>24,y>>>=S,g-=S,S=E>>>16&255,0===S)R[a++]=65535&E;else{if(!(16&S)){if(0===(64&S)){E=_[(65535&E)+(y&(1<<S)-1)];continue e}if(32&S){i.mode=r;break t}t.msg="invalid literal/length code",i.mode=n;break 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set",n.mode=pt;break}n.head&&(n.head.text=p>>8&1),512&n.flags&&(Ft[0]=255&p,Ft[1]=p>>>8&255,n.check=m(n.check,Ft,2,0)),p=0,l=0,n.mode=B;case B:for(;l<32;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}n.head&&(n.head.time=p),512&n.flags&&(Ft[0]=255&p,Ft[1]=p>>>8&255,Ft[2]=p>>>16&255,Ft[3]=p>>>24&255,n.check=m(n.check,Ft,4,0)),p=0,l=0,n.mode=j;case j:for(;l<16;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}n.head&&(n.head.xflags=255&p,n.head.os=p>>8),512&n.flags&&(Ft[0]=255&p,Ft[1]=p>>>8&255,n.check=m(n.check,Ft,2,0)),p=0,l=0,n.mode=z;case z:if(1024&n.flags){for(;l<16;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}n.length=p,n.head&&(n.head.extra_len=p),512&n.flags&&(Ft[0]=255&p,Ft[1]=p>>>8&255,n.check=m(n.check,Ft,2,0)),p=0,l=0}else n.head&&(n.head.extra=null);n.mode=q;case q:if(1024&n.flags&&(g=n.length,g>c&&(g=c),g&&(n.head&&(St=n.head.extra_len-n.length,n.head.extra||(n.head.extra=new Array(n.head.extra_len)),v.arraySet(n.head.extra,i,s,g,St)),512&n.flags&&(n.check=m(n.check,i,g,s)),c-=g,s+=g,n.length-=g),n.length))break t;n.length=0,n.mode=V;case V:if(2048&n.flags){if(0===c)break t;g=0;do St=i[s+g++],n.head&&St&&n.length<65536&&(n.head.name+=String.fromCharCode(St));while(St&&g<c);if(512&n.flags&&(n.check=m(n.check,i,g,s)),c-=g,s+=g,St)break t}else n.head&&(n.head.name=null);n.length=0,n.mode=W;case W:if(4096&n.flags){if(0===c)break t;g=0;do St=i[s+g++],n.head&&St&&n.length<65536&&(n.head.comment+=String.fromCharCode(St));while(St&&g<c);if(512&n.flags&&(n.check=m(n.check,i,g,s)),c-=g,s+=g,St)break t}else n.head&&(n.head.comment=null);n.mode=H;case H:if(512&n.flags){for(;l<16;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}if(p!==(65535&n.check)){t.msg="header crc mismatch",n.mode=pt;break}p=0,l=0}n.head&&(n.head.hcrc=n.flags>>9&1,n.head.done=!0),t.adler=n.check=0,n.mode=X;break;case Z:for(;l<32;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}t.adler=n.check=r(p),p=0,l=0,n.mode=Y;case Y:if(0===n.havedict)return t.next_out=a,t.avail_out=u,t.next_in=s,t.avail_in=c,n.hold=p,n.bits=l,T;t.adler=n.check=1,n.mode=X;case X:if(e===F||e===R)break t;case K:if(n.last){p>>>=7&l,l-=7&l,n.mode=ut;break}for(;l<3;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}switch(n.last=1&p,p>>>=1,l-=1,3&p){case 0:n.mode=G;break;case 1:if(f(n),n.mode=nt,e===R){p>>>=2,l-=2;break t}break;case 2:n.mode=$;break;case 3:t.msg="invalid block type",n.mode=pt}p>>>=2,l-=2;break;case G:for(p>>>=7&l,l-=7&l;l<32;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}if((65535&p)!==(p>>>16^65535)){t.msg="invalid stored block lengths",n.mode=pt;break}if(n.length=65535&p,p=0,l=0,n.mode=J,e===R)break t;case J:n.mode=Q;case Q:if(g=n.length){if(g>c&&(g=c),g>u&&(g=u),0===g)break t;v.arraySet(o,i,s,g,a),c-=g,s+=g,u-=g,a+=g,n.length-=g;break}n.mode=X;break;case $:for(;l<14;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}if(n.nlen=(31&p)+257,p>>>=5,l-=5,n.ndist=(31&p)+1,p>>>=5,l-=5,n.ncode=(15&p)+4,p>>>=4,l-=4,n.nlen>286||n.ndist>30){t.msg="too many length or distance symbols",n.mode=pt;break}n.have=0,n.mode=tt;case tt:for(;n.have<n.ncode;){for(;l<3;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}n.lens[Rt[n.have++]]=7&p,p>>>=3,l-=3}for(;n.have<19;)n.lens[Rt[n.have++]]=0;if(n.lencode=n.lendyn,n.lenbits=7,kt={bits:n.lenbits},bt=S(b,n.lens,0,19,n.lencode,0,n.work,kt),n.lenbits=kt.bits,bt){t.msg="invalid code lengths set",n.mode=pt;break}n.have=0,n.mode=et;case et:for(;n.have<n.nlen+n.ndist;){for(;Ot=n.lencode[p&(1<<n.lenbits)-1],gt=Ot>>>24,_t=Ot>>>16&255,vt=65535&Ot,!(gt<=l);){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}if(vt<16)p>>>=gt,l-=gt,n.lens[n.have++]=vt;else{if(16===vt){for(It=gt+2;l<It;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}if(p>>>=gt,l-=gt,0===n.have){t.msg="invalid bit length repeat",n.mode=pt;break}St=n.lens[n.have-1],g=3+(3&p),p>>>=2,l-=2}else if(17===vt){for(It=gt+3;l<It;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}p>>>=gt,l-=gt,St=0,g=3+(7&p),p>>>=3,l-=3}else{for(It=gt+7;l<It;){if(0===c)break t;c--,p+=i[s++]<<l,l+=8}p>>>=gt,l-=gt,St=0,g=11+(127&p),p>>>=7,l-=7}if(n.have+g>n.nlen+n.ndist){t.msg="invalid bit length repeat",n.mode=pt;break}for(;g--;)n.lens[n.have++]=St}}if(n.mode===pt)break;if(0===n.lens[256]){t.msg="invalid code -- missing end-of-block",n.mode=pt;break}if(n.lenbits=9,kt={bits:n.lenbits},bt=S(k,n.lens,0,n.nlen,n.lencode,0,n.work,kt),n.lenbits=kt.bits,bt){t.msg="invalid literal/lengths set",n.mode=pt;break}if(n.distbits=6,n.distcode=n.distdyn,kt={bits:n.distbits},bt=S(I,n.lens,n.nlen,n.ndist,n.distcode,0,n.work,kt),n.distbits=kt.bits,bt){t.msg="invalid distances set",n.mode=pt;break}if(n.mode=nt,e===R)break t;case nt:n.mode=rt;case 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