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e=this;this._wrapped.exists(this._folder,function(n){n?t():e._wrapped.isReadOnly()?t(be.ENOENT(e._folder)):e._wrapped.mkdir(e._folder,511,t)})},e.prototype.getName=function(){return this._wrapped.getName()},e.prototype.isReadOnly=function(){return this._wrapped.isReadOnly()},e.prototype.supportsProps=function(){return this._wrapped.supportsProps()},e.prototype.supportsSynch=function(){return this._wrapped.supportsSynch()},e.prototype.supportsLinks=function(){return!1},e}(Be);["diskSpace","stat","statSync","open","openSync","unlink","unlinkSync","rmdir","rmdirSync","mkdir","mkdirSync","readdir","readdirSync","exists","existsSync","realpath","realpathSync","truncate","truncateSync","readFile","readFileSync","writeFile","writeFileSync","appendFile","appendFileSync","chmod","chmodSync","chown","chownSync","utimes","utimesSync","readlink","readlinkSync"].forEach(function(t){Xr.prototype[t]=St(t,!0,!1)}),["rename","renameSync","link","linkSync","symlink","symlinkSync"].forEach(function(t){Xr.prototype[t]=St(t,!0,!0)});var Kr;Kr="undefined"!=typeof window?window:"undefined"!=typeof self?self:r;var Jr=Kr,Gr=Jr.webkitRequestFileSystem||Jr.requestFileSystem||null,Qr=function(t){function e(e,n,r,i,o,s){t.call(this,e,r,i,o,s),this._entry=n}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._entry.createWriter(function(n){var r=e.getBuffer(),i=new Blob([y(r)]),o=i.size;n.onwriteend=function(r){n.onwriteend=null,n.onerror=null,n.truncate(o),e.resetDirty(),t()},n.onerror=function(n){t(It(n,e.getPath(),!1))},n.write(i)}):t()},e.prototype.close=function(t){this.sync(t)},e}(qe),$r=function(t){function e(e,n,r){void 0===e&&(e=5),void 0===n&&(n=Jr.PERSISTENT),void 0===r&&(r=!0),t.call(this),this.size=1048576*e,this.type=n,l(r,"HTML5FS",{size:e,type:n})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){var r=new e(t.size,t.type,!1);r.allocate(function(t){return t?n(t):n(null,r)},!1)},e.isAvailable=function(){return!!Gr},e.prototype.getName=function(){return"HTML5 FileSystem"},e.prototype.isReadOnly=function(){return!1},e.prototype.supportsSymlinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!1},e.prototype.allocate=function(t,e){var n=this;void 0===t&&(t=function(){}),void 0===e&&(e=!0),e&&console.warn("[HTML5FS] HTML5FS.allocate() is deprecated and will be removed in the next major release. Please use 'HTML5FS.Create({type: "+this.type+", size: "+this.size+"}, cb)' to create and allocate HTML5FS instances.");var r=function(e){n.fs=e,t()},i=function(e){t(It(e,"/",!0))};this.type===Jr.PERSISTENT?bt(this.type,this.size,function(t){Gr(n.type,t,r,i)},i):Gr(this.type,this.size,r,i)},e.prototype.empty=function(t){this._readdir("/",function(e,n){if(e)console.error("Failed to empty FS"),t(e);else{var r=function(n){e?(console.error("Failed to empty FS"),t(e)):t()},i=function(t,e){var n=function(){e()},r=function(n){e(It(n,t.fullPath,!t.isDirectory))};Et(t)?t.removeRecursively(n,r):t.remove(n,r)};pt(n,i,r)}})},e.prototype.rename=function(t,e,n){var r=this,i=2,o=0,s=this.fs.root,a=t,c=function(t){--i<=0&&n(It(t,a,!1))},u=function(i){return 2===++o?n(new be(ve.EINVAL,"Something was identified as both a file and a directory. 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c=i._makeFile(t,n,e,s,a.result);r(null,c)},a.onerror=function(t){o(a.error)},a.readAsArrayBuffer(s)},o)},o)},e.prototype.unlink=function(t,e){this._remove(t,e,!0)},e.prototype.rmdir=function(t,e){var n=this;this.readdir(t,function(r,i){r?e(r):i.length>0?e(be.ENOTEMPTY(t)):n._remove(t,e,!1)})},e.prototype.mkdir=function(t,e,n){var r={create:!0,exclusive:!0},i=function(t){n()},o=function(e){n(It(e,t,!0))};this.fs.root.getDirectory(t,r,i,o)},e.prototype.readdir=function(t,e){this._readdir(t,function(t,n){if(t)return e(t);for(var r=[],i=0;i0)throw be.ENOTEMPTY(t);this.removeEntry(t,!0)},n.prototype.mkdirSync=function(e,n){var r=this.store.beginTransaction("readwrite"),i=t.from("{}");this.commitNewFile(r,e,Oe.DIRECTORY,n,i)},n.prototype.readdirSync=function(t){var e=this.store.beginTransaction("readonly");return Object.keys(this.getDirListing(e,t,this.findINode(e,t)))},n.prototype._syncSync=function(t,e,n){var r=this.store.beginTransaction("readwrite"),i=this._findINode(r,me.dirname(t),me.basename(t)),o=this.getINode(r,t,i),s=o.update(n);try{r.put(o.id,e,!0),s&&r.put(i,o.toBuffer(),!0)}catch(t){throw r.abort(),t}r.commit()},n.prototype.makeRootDirectory=function(){var t=this.store.beginTransaction("readwrite");if(void 0===t.get(ei)){var e=(new Date).getTime(),n=new ti(Ft(),4096,511|Oe.DIRECTORY,e,e,e);t.put(n.id,Ot(),!1),t.put(ei,n.toBuffer(),!1),t.commit()}},n.prototype._findINode=function(t,e,n){var r=this,i=function(i){var o=r.getDirListing(t,e,i);if(o[n])return o[n];throw be.ENOENT(me.resolve(e,n))};return"/"===e?""===n?ei:i(this.getINode(t,e,ei)):i(this.getINode(t,e+me.sep+n,this._findINode(t,me.dirname(e),me.basename(e))))},n.prototype.findINode=function(t,e){return this.getINode(t,e,this._findINode(t,me.dirname(e),me.basename(e)))},n.prototype.getINode=function(t,e,n){var r=t.get(n);if(void 0===r)throw be.ENOENT(e);return ti.fromBuffer(r)},n.prototype.getDirListing=function(t,e,n){if(!n.isDirectory())throw be.ENOTDIR(e);var r=t.get(n.id);if(void 0===r)throw be.ENOENT(e);return JSON.parse(r.toString())},n.prototype.addNewNode=function(t,e){for(var n,r=0;r<5;)try{return n=Ft(),t.put(n,e,!1),n}catch(t){}throw new be(ve.EIO,"Unable to commit data to key-value store.")},n.prototype.commitNewFile=function(e,n,r,i,o){var s=me.dirname(n),a=me.basename(n),c=this.findINode(e,s),u=this.getDirListing(e,s,c),f=(new Date).getTime();if("/"===n)throw be.EEXIST(n);if(u[a])throw be.EEXIST(n);var h;try{var l=this.addNewNode(e,o);h=new ti(l,o.length,i|r,f,f,f);var p=this.addNewNode(e,h.toBuffer());u[a]=p,e.put(c.id,t.from(JSON.stringify(u)),!0)}catch(t){throw e.abort(),t}return e.commit(),h},n.prototype.removeEntry=function(e,n){var r=this.store.beginTransaction("readwrite"),i=me.dirname(e),o=this.findINode(r,i),s=this.getDirListing(r,i,o),a=me.basename(e);if(!s[a])throw be.ENOENT(e);var c=s[a];delete s[a];var u=this.getINode(r,e,c);if(!n&&u.isDirectory())throw be.EISDIR(e);if(n&&!u.isDirectory())throw be.ENOTDIR(e);try{r.del(u.id),r.del(c),r.put(o.id,t.from(JSON.stringify(s)),!0)}catch(t){throw r.abort(),t}r.commit()},n}(ze),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;this.isDirty()?this._fs._sync(this.getPath(),this.getBuffer(),this.getStats(),function(n){n||e.resetDirty(),t(n)}):t()},e.prototype.close=function(t){this.sync(t)},e}(qe),ai=function(e){function n(){e.apply(this,arguments)}return e&&(n.__proto__=e),n.prototype=Object.create(e&&e.prototype),n.prototype.constructor=n,n.isAvailable=function(){return!0},n.prototype.init=function(t,e){this.store=t,this.makeRootDirectory(e)},n.prototype.getName=function(){return this.store.name()},n.prototype.isReadOnly=function(){return!1},n.prototype.supportsSymlinks=function(){return!1},n.prototype.supportsProps=function(){return!1},n.prototype.supportsSynch=function(){return!1},n.prototype.empty=function(t){var e=this;this.store.clear(function(n){Rt(n,t)&&e.makeRootDirectory(t)})},n.prototype.rename=function(e,n,r){var i=this,o=this.store.beginTransaction("readwrite"),s=me.dirname(e),a=me.basename(e),c=me.dirname(n),u=me.basename(n),f={},h={},l=!1;if(0===(c+"/").indexOf(e+"/"))return r(new be(ve.EBUSY,s));var p=function(){if(!l&&h.hasOwnProperty(s)&&h.hasOwnProperty(c)){var p=h[s],d=f[s],y=h[c],g=f[c];if(p[a]){var _=p[a];delete p[a];var v=function(){y[u]=_,o.put(d.id,t.from(JSON.stringify(p)),!0,function(e){Nt(e,o,r)&&(s===c?o.commit(r):o.put(g.id,t.from(JSON.stringify(y)),!0,function(t){Nt(t,o,r)&&o.commit(r)}))})};y[u]?i.getINode(o,n,y[u],function(t,e){Nt(t,o,r)&&(e.isFile()?o.del(e.id,function(t){Nt(t,o,r)&&o.del(y[u],function(t){Nt(t,o,r)&&v()})}):o.abort(function(t){r(be.EPERM(n))}))}):v()}else r(be.ENOENT(e))}},d=function(t){i.findINodeAndDirListing(o,t,function(e,n,i){e?l||(l=!0,o.abort(function(){r(e)})):(f[t]=n,h[t]=i,p())})};d(s),s!==c&&d(c)},n.prototype.stat=function(t,e,n){var r=this.store.beginTransaction("readonly");this.findINode(r,t,function(t,e){Rt(t,n)&&n(null,e.toStats())})},n.prototype.createFile=function(t,e,n,r){var i=this,o=this.store.beginTransaction("readwrite"),s=S();this.commitNewFile(o,t,Oe.FILE,n,s,function(n,o){Rt(n,r)&&r(null,new si(i,t,e,o.toStats(),s))})},n.prototype.openFile=function(t,e,n){var r=this,i=this.store.beginTransaction("readonly");this.findINode(i,t,function(o,s){Rt(o,n)&&i.get(s.id,function(i,o){Rt(i,n)&&(void 0===o?n(be.ENOENT(t)):n(null,new si(r,t,e,s.toStats(),o)))})})},n.prototype.unlink=function(t,e){this.removeEntry(t,!1,e)},n.prototype.rmdir=function(t,e){var n=this;this.readdir(t,function(r,i){r?e(r):i.length>0?e(be.ENOTEMPTY(t)):n.removeEntry(t,!0,e)})},n.prototype.mkdir=function(e,n,r){var i=this.store.beginTransaction("readwrite"),o=t.from("{}");this.commitNewFile(i,e,Oe.DIRECTORY,n,o,r)},n.prototype.readdir=function(t,e){var n=this,r=this.store.beginTransaction("readonly");this.findINode(r,t,function(i,o){Rt(i,e)&&n.getDirListing(r,t,o,function(t,n){Rt(t,e)&&e(null,Object.keys(n))})})},n.prototype._sync=function(t,e,n,r){var i=this,o=this.store.beginTransaction("readwrite");this._findINode(o,me.dirname(t),me.basename(t),function(s,a){Nt(s,o,r)&&i.getINode(o,t,a,function(t,i){if(Nt(t,o,r)){var s=i.update(n);o.put(i.id,e,!0,function(t){Nt(t,o,r)&&(s?o.put(a,i.toBuffer(),!0,function(t){Nt(t,o,r)&&o.commit(r)}):o.commit(r))})}})})},n.prototype.makeRootDirectory=function(t){var e=this.store.beginTransaction("readwrite");e.get(ei,function(n,r){if(n||void 0===r){var i=(new Date).getTime(),o=new ti(Ft(),4096,511|Oe.DIRECTORY,i,i,i);e.put(o.id,Ot(),!1,function(n){Nt(n,e,t)&&e.put(ei,o.toBuffer(),!1,function(n){n?e.abort(function(){t(n)}):e.commit(t)})})}else e.commit(t)})},n.prototype._findINode=function(t,e,n,r){var i=this,o=function(t,i,o){t?r(t):o[n]?r(null,o[n]):r(be.ENOENT(me.resolve(e,n)))};"/"===e?""===n?r(null,ei):this.getINode(t,e,ei,function(n,s){Rt(n,r)&&i.getDirListing(t,e,s,function(t,e){o(t,s,e)})}):this.findINodeAndDirListing(t,e,o)},n.prototype.findINode=function(t,e,n){var r=this;this._findINode(t,me.dirname(e),me.basename(e),function(i,o){Rt(i,n)&&r.getINode(t,e,o,n)})},n.prototype.getINode=function(t,e,n,r){t.get(n,function(t,n){Rt(t,r)&&(void 0===n?r(be.ENOENT(e)):r(null,ti.fromBuffer(n)))})},n.prototype.getDirListing=function(t,e,n,r){n.isDirectory()?t.get(n.id,function(t,n){if(Rt(t,r))try{r(null,JSON.parse(n.toString()))}catch(t){r(be.ENOENT(e))}}):r(be.ENOTDIR(e))},n.prototype.findINodeAndDirListing=function(t,e,n){var r=this;this.findINode(t,e,function(i,o){Rt(i,n)&&r.getDirListing(t,e,o,function(t,e){Rt(t,n)&&n(null,o,e)})})},n.prototype.addNewNode=function(t,e,n){var r,i=0,o=function(){5===++i?n(new be(ve.EIO,"Unable to commit data to key-value store.")):(r=Ft(),t.put(r,e,!1,function(t,e){t||!e?o():n(null,r)}))};o()},n.prototype.commitNewFile=function(e,n,r,i,o,s){var a=this,c=me.dirname(n),u=me.basename(n),f=(new Date).getTime();return"/"===n?s(be.EEXIST(n)):void this.findINodeAndDirListing(e,c,function(c,h,l){Nt(c,e,s)&&(l[u]?e.abort(function(){s(be.EEXIST(n))}):a.addNewNode(e,o,function(n,c){if(Nt(n,e,s)){var p=new ti(c,o.length,i|r,f,f,f);a.addNewNode(e,p.toBuffer(),function(n,r){Nt(n,e,s)&&(l[u]=r,e.put(h.id,t.from(JSON.stringify(l)),!0,function(t){Nt(t,e,s)&&e.commit(function(t){Nt(t,e,s)&&s(null,p)})}))})}}))})},n.prototype.removeEntry=function(e,n,r){var i=this,o=this.store.beginTransaction("readwrite"),s=me.dirname(e),a=me.basename(e);this.findINodeAndDirListing(o,s,function(s,c,u){if(Nt(s,o,r))if(u[a]){var f=u[a];delete u[a],i.getINode(o,e,f,function(i,s){Nt(i,o,r)&&(!n&&s.isDirectory()?o.abort(function(){r(be.EISDIR(e))}):n&&!s.isDirectory()?o.abort(function(){r(be.ENOTDIR(e))}):o.del(s.id,function(e){Nt(e,o,r)&&o.del(f,function(e){Nt(e,o,r)&&o.put(c.id,t.from(JSON.stringify(u)),!0,function(t){Nt(t,o,r)&&o.commit(r)})})}))})}else o.abort(function(){r(be.ENOENT(e))})})},n}(Be),ci=function(){this.store={}};ci.prototype.name=function(){return"In-memory"},ci.prototype.clear=function(){this.store={}},ci.prototype.beginTransaction=function(t){return new ri(this)},ci.prototype.get=function(t){return this.store[t]},ci.prototype.put=function(t,e,n){return!(!n&&this.store.hasOwnProperty(t))&&(this.store[t]=e,!0)},ci.prototype.del=function(t){delete this.store[t]};var ui=function(t){function e(){t.call(this,{store:new ci})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){var r=n?n:t;r(null,new e)},e}(oi),fi=Jr.indexedDB||Jr.mozIndexedDB||Jr.webkitIndexedDB||Jr.msIndexedDB,hi=function(t,e){this.tx=t,this.store=e};hi.prototype.get=function(t,e){try{var n=this.store.get(t);n.onerror=Lt(e),n.onsuccess=function(t){var n=t.target.result;void 0===n?e(null,n):e(null,w(n))}}catch(t){e(Tt(t))}};var li=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=y(e);i=n?this.store.put(o,t):this.store.add(o,t),i.onerror=Lt(r),i.onsuccess=function(t){r(null,!0)}}catch(t){r(Tt(t))}},e.prototype.del=function(t,e){try{var n=this.store.delete(t);n.onerror=Lt(e),n.onsuccess=function(t){e()}}catch(t){e(Tt(t))}},e.prototype.commit=function(t){setTimeout(t,0)},e.prototype.abort=function(t){var e=null;try{this.tx.abort()}catch(t){e=Tt(t)}finally{t(e)}},e}(hi),pi=function(t,e){var n=this;void 0===e&&(e="browserfs"),this.storeName=e;var r=fi.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=Lt(t,ve.EACCES)};pi.prototype.name=function(){return"IndexedDB - "+this.storeName},pi.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=Lt(t)}catch(e){t(Tt(e))}},pi.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 li(e,n);if("readonly"===t)return new hi(e,n);throw new be(ve.EINVAL,"Invalid transaction type.")};var di,yi=function(t){function e(e,n,r){var i=this;void 0===r&&(r=!0),t.call(this),this.store=new pi(function(t){t?e(t):i.init(i.store,function(t){e(t,i)})},n),l(r,"IndexedDB",{storeName:n})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){var r=n?n:t;new e(r,n&&t?t.storeName:void 0,!1)},e.isAvailable=function(){try{return"undefined"!=typeof fi&&null!==fi.open("__browserfs_test__")}catch(t){return!1}},e}(ai),gi=!1;try{Jr.localStorage.setItem("__test__",String.fromCharCode(55296)),gi=Jr.localStorage.getItem("__test__")===String.fromCharCode(55296)}catch(t){gi=!1}di=gi?"binary_string":"binary_string_ie",t.isEncoding(di)||(di="base64");var _i=function(){};_i.prototype.name=function(){return"LocalStorage"},_i.prototype.clear=function(){Jr.localStorage.clear()},_i.prototype.beginTransaction=function(t){return new ri(this)},_i.prototype.get=function(e){try{var n=Jr.localStorage.getItem(e);if(null!==n)return t.from(n,di)}catch(t){}},_i.prototype.put=function(t,e,n){try{return!(!n&&null!==Jr.localStorage.getItem(t))&&(Jr.localStorage.setItem(t,e.toString(di)),!0)}catch(t){throw new be(ve.ENOSPC,"LocalStorage is full.")}},_i.prototype.del=function(t){try{Jr.localStorage.removeItem(t)}catch(e){throw new be(ve.EIO,"Unable to delete key "+t+": "+e)}};for(var vi=function(t){function e(){t.call(this,{store:new _i})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){var r=n?n:t;r(null,new e)},e.isAvailable=function(){return"undefined"!=typeof Jr.localStorage},e}(oi),wi=function(t){function e(){t.call(this),this.mountList=[],this.mntMap={},this.rootFs=new ui}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){var r=new e;Object.keys(t).forEach(function(e){r.mount(e,t[e])}),n(null,r)},e.isAvailable=function(){return!0},e.prototype.mount=function(t,e){if("/"!==t[0]&&(t="/"+t),t=me.resolve(t),this.mntMap[t])throw new be(ve.EINVAL,"Mount point "+t+" is already taken.");d(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=me.resolve(t),!this.mntMap[t])throw new be(ve.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=me.dirname(t)},e.prototype._getFs=function(t){for(var e=this,n=this.mountList,r=n.length,i=0;i1?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)}):Le.readFile(t,function(r,i){return r?n(r):void Le.writeFile(e,i,function(e){return e?n(e):void Le.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=Le.readFileSync(t);return Le.writeFileSync(e,i),Le.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 be.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(be.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=t.length&&i.slice(0,t.length)===t)return!0}return!1},e}(Be),mi=[["exists","unlink","readlink"],["stat","mkdir","realpath","truncate"],["open","readFile","chmod","utimes"],["chown"],["writeFile","appendFile"]],Si=0;Si0)){var e=Fi.shift();return e()}};Oi.addEventListener?Oi.addEventListener("message",Ti,!0):Oi.attachEvent("onmessage",Ti)}else if(Oi.MessageChannel){var Li=new Oi.MessageChannel;Li.port1.onmessage=function(t){if(Fi.length>0)return Fi.shift()()},Ii=function(t){Fi.push(t),Li.port2.postMessage("")}}else Ii=function(t){return setTimeout(t,0)}}var Ai=Ii,Di=function(){this._locked=!1,this._waiters=[]};Di.prototype.lock=function(t){return this._locked?void this._waiters.push(t):(this._locked=!0,void t())},Di.prototype.unlock=function(){if(!this._locked)throw new Error("unlock of a non-locked mutex");var t=this._waiters.shift();return t?void Ai(t):void(this._locked=!1)},Di.prototype.tryLock=function(){return!this._locked&&(this._locked=!0,!0)},Di.prototype.isLocked=function(){return this._locked};var xi=function(t){this._fs=t,this._mu=new Di};xi.prototype.getName=function(){return"LockedFS<"+this._fs.getName()+">"},xi.prototype.getFSUnlocked=function(){return this._fs},xi.prototype.initialize=function(t){this._fs.initialize(t)},xi.prototype.diskSpace=function(t,e){this._fs.diskSpace(t,e)},xi.prototype.isReadOnly=function(){return this._fs.isReadOnly()},xi.prototype.supportsLinks=function(){ return this._fs.supportsLinks()},xi.prototype.supportsProps=function(){return this._fs.supportsProps()},xi.prototype.supportsSynch=function(){return this._fs.supportsSynch()},xi.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)})})},xi.prototype.renameSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.renameSync(t,e)},xi.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)})})},xi.prototype.statSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.statSync(t,e)},xi.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)})})},xi.prototype.openSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.openSync(t,e,n)},xi.prototype.unlink=function(t,e){var n=this;this._mu.lock(function(){n._fs.unlink(t,function(t){n._mu.unlock(),e(t)})})},xi.prototype.unlinkSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.unlinkSync(t)},xi.prototype.rmdir=function(t,e){var n=this;this._mu.lock(function(){n._fs.rmdir(t,function(t){n._mu.unlock(),e(t)})})},xi.prototype.rmdirSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.rmdirSync(t)},xi.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)})})},xi.prototype.mkdirSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.mkdirSync(t,e)},xi.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)})})},xi.prototype.readdirSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readdirSync(t)},xi.prototype.exists=function(t,e){var n=this;this._mu.lock(function(){n._fs.exists(t,function(t){n._mu.unlock(),e(t)})})},xi.prototype.existsSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.existsSync(t)},xi.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)})})},xi.prototype.realpathSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.realpathSync(t,e)},xi.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)})})},xi.prototype.truncateSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.truncateSync(t,e)},xi.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)})})},xi.prototype.readFileSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readFileSync(t,e,n)},xi.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)})})},xi.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)},xi.prototype.appendFile=function(t,e,n,r,i,o){var s=this;this._mu.lock(function(){s._fs.appendFile(t,e,n,r,i,function(t){s._mu.unlock(),o(t)})})},xi.prototype.appendFileSync=function(t,e,n,r,i){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.appendFileSync(t,e,n,r,i)},xi.prototype.chmod=function(t,e,n,r){var i=this;this._mu.lock(function(){i._fs.chmod(t,e,n,function(t){i._mu.unlock(),r(t)})})},xi.prototype.chmodSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.chmodSync(t,e,n)},xi.prototype.chown=function(t,e,n,r,i){var o=this;this._mu.lock(function(){o._fs.chown(t,e,n,r,function(t){o._mu.unlock(),i(t)})})},xi.prototype.chownSync=function(t,e,n,r){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.chownSync(t,e,n,r)},xi.prototype.utimes=function(t,e,n,r){var i=this;this._mu.lock(function(){i._fs.utimes(t,e,n,function(t){i._mu.unlock(),r(t)})})},xi.prototype.utimesSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.utimesSync(t,e,n)},xi.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)})})},xi.prototype.linkSync=function(t,e){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.linkSync(t,e)},xi.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)})})},xi.prototype.symlinkSync=function(t,e,n){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.symlinkSync(t,e,n)},xi.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)})})},xi.prototype.readlinkSync=function(t){if(this._mu.isLocked())throw new Error("invalid sync call");return this._fs.readlinkSync(t)};var Pi,Ci="/.deletedFiles.log",Ui=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}(qe),Mi=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 be(ve.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,xt("w"),t.getStats().mode,e)})},e.prototype._syncSync=function(t){this.createParentDirectories(t.getPath()),this._writable.writeFileSync(t.getPath(),t.getBuffer(),null,xt("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(Ci,"utf8",xt("r"),function(t,n){if(t){if(t.errno!==ve.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===Ci||e===Ci?n(be.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=me.resolve(t,i),s=me.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!==ve.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(be.ENOTDIR(e));r.readdir(e,function(i,o){return o&&o.length?n(be.ENOTEMPTY(e)):void r._readable.readdir(t,function(t,e){return t?n():void a(e)})})}return s&&s.isDirectory()?n(be.EISDIR(e)):void r.readFile(t,null,xt("r"),function(i,s){return i?n(i):r.writeFile(e,s,null,xt("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===Ci||e===Ci)throw be.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 be.ENOTDIR(e);if(this.readdirSync(e).length>0)throw be.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(me.resolve(t,r),me.resolve(e,r))})}else{if(this.existsSync(e)&&this.statSync(e,!1).isDirectory())throw be.EISDIR(e);this.writeFileSync(e,this.readFileSync(t,null,xt("r")),null,xt("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===ve.ENOENT?(r._deletedFiles[t]&&n(be.ENOENT(t)),r._readable.stat(t,e,function(t,e){e&&(e=e.clone(),e.mode=Dt(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 be.ENOENT(t);var n=this._readable.statSync(t,e).clone();return n.mode=Dt(n.mode),n}},e.prototype.open=function(t,e,n,r){var i=this;this.checkInitAsync(r)&&!this.checkPathAsync(t,r)&&this.stat(t,!1,function(o,s){if(s)switch(e.pathExistsAction()){case Ee.TRUNCATE_FILE:return i.createParentDirectoriesAsync(t,function(o){return o?r(o):void i._writable.open(t,e,n,r)});case Ee.NOP:return i._writable.exists(t,function(o){o?i._writable.open(t,e,n,r):(s=s.clone(),s.mode=n,i._readable.readFile(t,null,xt("r"),function(n,o){if(n)return r(n);s.size===-1&&(s.size=o.length);var a=new Ui(i,t,e,s,o);r(null,a)}))});default:return r(be.EEXIST(t))}else switch(e.pathNotExistsAction()){case Ee.CREATE_FILE:return i.createParentDirectoriesAsync(t,function(o){return o?r(o):i._writable.open(t,e,n,r)});default:return r(be.ENOENT(t))}})},e.prototype.openSync=function(t,e,n){if(this.checkInitialized(),this.checkPath(t),t===Ci)throw be.EPERM("Cannot open deletion log.");if(this.existsSync(t))switch(e.pathExistsAction()){case Ee.TRUNCATE_FILE:return this.createParentDirectories(t),this._writable.openSync(t,e,n);case Ee.NOP:if(this._writable.existsSync(t))return this._writable.openSync(t,e,n);var r=this._readable.readFileSync(t,null,xt("r")),i=this._readable.statSync(t,!1).clone();return i.mode=n,new Ui(this,t,e,i,r);default:throw be.EEXIST(t)}else switch(e.pathNotExistsAction()){case Ee.CREATE_FILE:return this.createParentDirectories(t),this._writable.openSync(t,e,n);default:throw be.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(be.ENOENT(t))})},e.prototype.unlinkSync=function(t){if(this.checkInitialized(),this.checkPath(t),!this.existsSync(t))throw be.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(be.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(be.ENOENT(t))})}},e.prototype.rmdirSync=function(t){if(this.checkInitialized(),!this.existsSync(t))throw be.ENOENT(t);if(this._writable.existsSync(t)&&this._writable.rmdirSync(t),this.existsSync(t)){if(this.readdirSync(t).length>0)throw be.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(be.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 be.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(be.ENOTDIR(t))})},e.prototype.readdirSync=function(t){var e=this;this.checkInitialized();var n=this.statSync(t,!1);if(!n.isDirectory())throw be.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(Ci,this._deleteLog,"utf8",Ie.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 be(ve.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 be(ve.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===Ci)throw be.EPERM(t)},e.prototype.checkPathAsync=function(t,e){return t===Ci&&(e(be.EPERM(t)),!0)},e.prototype.createParentDirectoriesAsync=function(t,e){function n(t,e){t?(o.push(i),i=me.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=me.dirname(t),o=[],s=this;this._writable.stat(i,!1,n)},e.prototype.createParentDirectories=function(t){for(var e=this,n=me.dirname(t),r=[];!this._writable.existsSync(n);)r.push(n),n=me.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 be.ENOENT(t);this._writable.existsSync(t)||this.copyToWritable(t),e()},e.prototype.operateOnWritableAsync=function(t,e){var n=this;this.exists(t,function(r){return r?void n._writable.exists(t,function(r){return r?void e():n.copyToWritableAsync(t,e)}):e(be.ENOENT(t))})},e.prototype.copyToWritable=function(t){var e=this.statSync(t,!1);e.isDirectory()?this._writable.mkdirSync(t,e.mode):this.writeFileSync(t,this._readable.readFileSync(t,null,xt("r")),null,xt("w"),this.statSync(t,!1).mode)},e.prototype.copyToWritableAsync=function(t,e){var n=this;this.stat(t,!1,function(r,i){return r?e(r):i.isDirectory()?n._writable.mkdir(t,i.mode,e):void n._readable.readFile(t,null,xt("r"),function(r,o){return r?e(r):void n.writeFile(t,o,null,xt("w"),i.mode,e)})})},e}(Be),ji=function(t){function e(e,n,r){void 0===r&&(r=!0),t.call(this,new Mi(e,n)),l(r,"OverlayFS",{readable:"readable file system",writable:"writable file system"})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){try{var r=new e(t.writable,t.readable,!1);r.initialize(function(t){n(t,r)},!1)}catch(t){n(t)}},e.isAvailable=function(){return Mi.isAvailable()},e.prototype.initialize=function(e,n){void 0===n&&(n=!0),n&&console.warn("[OverlayFS] OverlayFS.initialize() is deprecated and will be removed in the next major release. Please use 'OverlayFS.Create({readable: readable file system instance, writable: writable file system instance}, cb)' to create and initialize OverlayFS instances."),t.prototype.initialize.call(this,e)},e.prototype.getOverlayedFileSystems=function(){return t.prototype.getFSUnlocked.call(this).getOverlayedFileSystems()},e.prototype.unwrap=function(){return t.prototype.getFSUnlocked.call(this)},e}(xi);!function(t){t[t.CB=0]="CB",t[t.FD=1]="FD",t[t.API_ERROR=2]="API_ERROR",t[t.STATS=3]="STATS",t[t.PROBE=4]="PROBE",t[t.FILEFLAG=5]="FILEFLAG",t[t.BUFFER=6]="BUFFER",t[t.ERROR=7]="ERROR"}(Pi||(Pi={}));var Bi=function(){this._callbacks={},this._nextId=0};Bi.prototype.toRemoteArg=function(t){var e=this._nextId++;return this._callbacks[e]=t,{type:Pi.CB,id:e}},Bi.prototype.toLocalArg=function(t){var e=this._callbacks[t];return delete this._callbacks[t],e};var zi=function(){this._fileDescriptors={},this._nextId=0};zi.prototype.toRemoteArg=function(e,n,r,i){var o,s,a=this._nextId++;this._fileDescriptors[a]=e,e.stat(function(c,u){c?i(c):(s=qt(u.toBuffer()),r.isReadable()?e.read(t.alloc(u.size),0,u.size,0,function(t,e,c){t?i(t):(o=qt(c),i(null,{type:Pi.FD,id:a,data:o,stat:s,path:n,flag:r.getFlagString()}))}):i(null,{type:Pi.FD,id:a,data:new ArrayBuffer(0),stat:s,path:n,flag:r.getFlagString()}))})},zi.prototype.applyFdAPIRequest=function(t,e){var n=this,r=t.args[0];this._applyFdChanges(r,function(i,o){i?e(i):o[t.method](function(i){"close"===t.method&&delete n._fileDescriptors[r.id],e(i)})})},zi.prototype._applyFdChanges=function(t,e){var n=this._fileDescriptors[t.id],r=Wt(t.data),i=Fe.fromBuffer(Wt(t.stat)),o=Ie.getFileFlag(t.flag);o.isWriteable()?n.write(r,0,r.length,o.isAppendable()?n.getPos():0,function(t){function s(){n.stat(function(t,r){t?e(t):r.mode!==i.mode?n.chmod(i.mode,function(t){e(t,n)}):e(t,n)})}t?e(t):o.isAppendable()?s():n.truncate(r.length,function(){s()})}):e(null,n)};var Yi=function(t){function e(e,n,r,i,o,s){t.call(this,e,n,r,i,s),this._remoteFdId=o}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getRemoteFdId=function(){return this._remoteFdId},e.prototype.toRemoteArg=function(){return{type:Pi.FD,id:this._remoteFdId,data:qt(this.getBuffer()),stat:qt(this.getStats().toBuffer()),path:this.getPath(),flag:this.getFlag().getFlagString()}},e.prototype.sync=function(t){this._syncClose("sync",t)},e.prototype.close=function(t){this._syncClose("close",t)},e.prototype._syncClose=function(t,e){var n=this;this.isDirty()?this._fs.syncClose(t,this,function(t){t||n.resetDirty(),e(t)}):e()},e}(qe),qi=function(e){function n(t,n){var r=this;void 0===n&&(n=!0),e.call(this),this._callbackConverter=new Bi,this._isInitialized=!1,this._isReadOnly=!1,this._supportLinks=!1,this._supportProps=!1,this._worker=t,l(n,"WorkerFS",{worker:"Web Worker instance"}),this._worker.addEventListener("message",function(t){var e=t.data;if(Xt(e)){var n,i=e.args,o=new Array(i.length);for(n=0;n0&&(u=-1,s={browserfsMessage:!0,cbId:o,args:[Pt(t)]},e.postMessage(s))}var i,s,a=arguments,c=new Array(arguments.length),u=arguments.length;for(i=0;i0;){var i=void 0,o=r.pop(),s=o[0],a=o[1],c=o[2];for(var u in a)if(a.hasOwnProperty(u)){var f=a[u],h=s+"/"+u;f?(e._index[h]=i=new Xi,r.push([h,f,i])):i=new Zi(new Fe(Oe.FILE,-1,365)),c&&(c._ls[u]=i)}}return e},Vi.prototype.fileIterator=function(t){var e=this;for(var n in e._index)if(e._index.hasOwnProperty(n))for(var r=e._index[n],i=r.getListing(),o=0;o0&&"/"!==n.charAt(n.length-1)&&(n+="/"),this.prefixUrl=n;var i=null;if("string"==typeof e){if(i=this._requestFileSync(e,"json"),!i)throw new Error("Unable to find listing at URL: ${listingUrlOrObj}")}else i=e;l(r,"XmlHttpRequest",{index:"string"==typeof e?e:"file index as an object",baseUrl:n}),this._index=Vi.fromListing(i)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.Create=function(t,n){"string"==typeof t.index?e.FromURL(t.index,n,t.baseUrl,!1):n(null,new e(t.index,t.baseUrl,!1))},e.isAvailable=function(){return"undefined"!=typeof XMLHttpRequest&&null!==XMLHttpRequest},e.FromURL=function(t,n,r,i){void 0===r&&(r=t.slice(0,t.lastIndexOf("/")+1)),void 0===i&&(i=!0),i&&console.warn("[XmlHttpRequest] XmlHttpRequest.FromURL() is deprecated and will be removed in the next major release. Please use 'XmlHttpRequest.Create({ index: \""+t+'", baseUrl: "'+r+"\" }, cb)' instead."),Wi(t,"json",function(t,i){t?n(t):n(null,new e(i,r,!1))})},e.prototype.empty=function(){this._index.fileIterator(function(t){t.fileData=null})},e.prototype.getName=function(){return"XmlHttpRequest"},e.prototype.diskSpace=function(t,e){e(0,0)},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.preloadFile=function(t,e){var n=this._index.getInode(t);if(!ee(n))throw be.EISDIR(t);if(null===n)throw be.ENOENT(t);var r=n.getData();r.size=e.length,r.fileData=e},e.prototype.stat=function(t,e,n){var r=this._index.getInode(t);if(null===r)return n(be.ENOENT(t));var i;ee(r)?(i=r.getData(),i.size<0?this._requestFileSizeAsync(t,function(t,e){return t?n(t):(i.size=e,void n(null,i.clone()))}):n(null,i.clone())):ne(r)?(i=r.getStats(),n(null,i)):n(be.FileError(ve.EINVAL,t))},e.prototype.statSync=function(t,e){var n=this._index.getInode(t);if(null===n)throw be.ENOENT(t);var r;if(ee(n))r=n.getData(),r.size<0&&(r.size=this._requestFileSizeSync(t));else{if(!ne(n))throw be.FileError(ve.EINVAL,t);r=n.getStats()}return r},e.prototype.open=function(t,e,n,r){if(e.isWriteable())return r(new be(ve.EPERM,t));var i=this,o=this._index.getInode(t);if(null===o)return r(be.ENOENT(t));if(!ee(o))return r(be.EISDIR(t));var s=o.getData();switch(e.pathExistsAction()){case Ee.THROW_EXCEPTION:case Ee.TRUNCATE_FILE:return r(be.EEXIST(t));case Ee.NOP:if(s.fileData)return r(null,new We(i,t,e,s.clone(),s.fileData));this._requestFileAsync(t,"buffer",function(n,o){return n?r(n):(s.size=o.length,s.fileData=o,r(null,new We(i,t,e,s.clone(),o)))});break;default:return r(new be(ve.EINVAL,"Invalid FileMode object."))}},e.prototype.openSync=function(t,e,n){if(e.isWriteable())throw new be(ve.EPERM,t);var r=this._index.getInode(t);if(null===r)throw be.ENOENT(t); if(!ee(r))throw be.EISDIR(t);var i=r.getData();switch(e.pathExistsAction()){case Ee.THROW_EXCEPTION:case Ee.TRUNCATE_FILE:throw be.EEXIST(t);case Ee.NOP:if(i.fileData)return new We(this,t,e,i.clone(),i.fileData);var o=this._requestFileSync(t,"buffer");return i.size=o.length,i.fileData=o,new We(this,t,e,i.clone(),o);default:throw new be(ve.EINVAL,"Invalid FileMode object.")}},e.prototype.readdir=function(t,e){try{e(null,this.readdirSync(t))}catch(t){e(t)}},e.prototype.readdirSync=function(t){var e=this._index.getInode(t);if(null===e)throw be.ENOENT(t);if(ne(e))return e.getListing();throw be.ENOTDIR(t)},e.prototype.readFile=function(t,e,n,r){var i=r;this.open(t,n,420,function(t,n){if(t)return r(t);r=function(t,e){n.close(function(n){return t||(t=n),i(t,e)})};var o=n,s=o.getBuffer();null===e?r(t,m(s)):re(s,e,r)})},e.prototype.readFileSync=function(t,e,n){var r=this.openSync(t,n,420);try{var i=r,o=i.getBuffer();return null===e?m(o):o.toString(e)}finally{r.closeSync()}},e.prototype.getXhrPath=function(t){return"/"===t.charAt(0)&&(t=t.slice(1)),this.prefixUrl+t},e.prototype._requestFileAsync=function(t,e,n){Wi(this.getXhrPath(t),e,n)},e.prototype._requestFileSync=function(t,e){return Hi(this.getXhrPath(t),e)},e.prototype._requestFileSizeAsync=function(t,e){te(this.getXhrPath(t),e)},e.prototype._requestFileSizeSync=function(t){return $t(this.getXhrPath(t))},e}(Be),Ji=function(){};Ji.str2byte=function(t,e){for(var n=t.length>e.length?e.length:t.length,r=0;r127){var o=Ji.extendedChars.indexOf(t.charAt(r));o>-1&&(i=o+128)}e[i]=r}return n},Ji.byte2str=function(t){for(var e=new Array(t.length),n=0;n127?e[n]=Ji.extendedChars[r-128]:e[n]=String.fromCharCode(r)}return e.join("")},Ji.byteLength=function(t){return t.length},Ji.extendedChars=["Ç","ü","é","â","ä","à","å","ç","ê","ë","è","ï","î","ì","Ä","Å","É","æ","Æ","ô","ö","ò","û","ù","ÿ","Ö","Ü","ø","£","Ø","×","ƒ","á","í","ó","ú","ñ","Ñ","ª","º","¿","®","¬","½","¼","¡","«","»","_","_","_","¦","¦","Á","Â","À","©","¦","¦","+","+","¢","¥","+","+","-","-","+","-","+","ã","Ã","+","+","-","-","¦","-","+","¤","ð","Ð","Ê","Ë","È","i","Í","Î","Ï","+","+","_","_","¦","Ì","_","Ó","ß","Ô","Ò","õ","Õ","µ","þ","Þ","Ú","Û","Ù","ý","Ý","¯","´","­","±","_","¾","¶","§","÷","¸","°","¨","·","¹","³","²","_"," "];var Gi,Qi=n(24).inflateRaw,$i={};!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"}(Gi||(Gi={}));var to;!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"}(to||(to={}));var eo=function(t){if(this.data=t,67324752!==t.readUInt32LE(0))throw new be(ve.EINVAL,"Invalid Zip file: Local file header has invalid signature: "+this.data.readUInt32LE(0))};eo.prototype.versionNeeded=function(){return this.data.readUInt16LE(4)},eo.prototype.flags=function(){return this.data.readUInt16LE(6)},eo.prototype.compressionMethod=function(){return this.data.readUInt16LE(8)},eo.prototype.lastModFileTime=function(){return ie(this.data.readUInt16LE(10),this.data.readUInt16LE(12))},eo.prototype.rawLastModFileTime=function(){return this.data.readUInt32LE(10)},eo.prototype.crc32=function(){return this.data.readUInt32LE(14)},eo.prototype.fileNameLength=function(){return this.data.readUInt16LE(26)},eo.prototype.extraFieldLength=function(){return this.data.readUInt16LE(28)},eo.prototype.fileName=function(){return oe(this.data,this.useUTF8(),30,this.fileNameLength())},eo.prototype.extraField=function(){var t=30+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},eo.prototype.totalSize=function(){return 30+this.fileNameLength()+this.extraFieldLength()},eo.prototype.useUTF8=function(){return 2048===(2048&this.flags())};var no=function(t,e,n){this.header=t,this.record=e,this.data=n};no.prototype.decompress=function(){var t=this.header.compressionMethod(),e=$i[t];if(e)return e(this.data,this.record.compressedSize(),this.record.uncompressedSize(),this.record.flag());var n=to[t];throw n||(n="Unknown: "+t),new be(ve.EINVAL,"Invalid compression method on file '"+this.header.fileName()+"': "+n)},no.prototype.getHeader=function(){return this.header},no.prototype.getRecord=function(){return this.record},no.prototype.getRawData=function(){return this.data};var ro=function(t){this.data=t};ro.prototype.crc32=function(){return this.data.readUInt32LE(0)},ro.prototype.compressedSize=function(){return this.data.readUInt32LE(4)},ro.prototype.uncompressedSize=function(){return this.data.readUInt32LE(8)};var io=function(t){if(this.data=t,134630224!==this.data.readUInt32LE(0))throw new be(ve.EINVAL,"Invalid archive extra data record signature: "+this.data.readUInt32LE(0))};io.prototype.length=function(){return this.data.readUInt32LE(4)},io.prototype.extraFieldData=function(){return this.data.slice(8,8+this.length())};var oo=function(t){if(this.data=t,84233040!==this.data.readUInt32LE(0))throw new be(ve.EINVAL,"Invalid digital signature signature: "+this.data.readUInt32LE(0))};oo.prototype.size=function(){return this.data.readUInt16LE(4)},oo.prototype.signatureData=function(){return this.data.slice(6,6+this.size())};var so=function(t,e){if(this.zipData=t,this.data=e,33639248!==this.data.readUInt32LE(0))throw new be(ve.EINVAL,"Invalid Zip file: Central directory record has invalid signature: "+this.data.readUInt32LE(0));this._filename=this.produceFilename()};so.prototype.versionMadeBy=function(){return this.data.readUInt16LE(4)},so.prototype.versionNeeded=function(){return this.data.readUInt16LE(6)},so.prototype.flag=function(){return this.data.readUInt16LE(8)},so.prototype.compressionMethod=function(){return this.data.readUInt16LE(10)},so.prototype.lastModFileTime=function(){return ie(this.data.readUInt16LE(12),this.data.readUInt16LE(14))},so.prototype.rawLastModFileTime=function(){return this.data.readUInt32LE(12)},so.prototype.crc32=function(){return this.data.readUInt32LE(16)},so.prototype.compressedSize=function(){return this.data.readUInt32LE(20)},so.prototype.uncompressedSize=function(){return this.data.readUInt32LE(24)},so.prototype.fileNameLength=function(){return this.data.readUInt16LE(28)},so.prototype.extraFieldLength=function(){return this.data.readUInt16LE(30)},so.prototype.fileCommentLength=function(){return this.data.readUInt16LE(32)},so.prototype.diskNumberStart=function(){return this.data.readUInt16LE(34)},so.prototype.internalAttributes=function(){return this.data.readUInt16LE(36)},so.prototype.externalAttributes=function(){return this.data.readUInt32LE(38)},so.prototype.headerRelativeOffset=function(){return this.data.readUInt32LE(42)},so.prototype.produceFilename=function(){var t=oe(this.data,this.useUTF8(),46,this.fileNameLength());return t.replace(/\\/g,"/")},so.prototype.fileName=function(){return this._filename},so.prototype.rawFileName=function(){return this.data.slice(46,46+this.fileNameLength())},so.prototype.extraField=function(){var t=44+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},so.prototype.fileComment=function(){var t=46+this.fileNameLength()+this.extraFieldLength();return oe(this.data,this.useUTF8(),t,this.fileCommentLength())},so.prototype.rawFileComment=function(){var t=46+this.fileNameLength()+this.extraFieldLength();return this.data.slice(t,t+this.fileCommentLength())},so.prototype.totalSize=function(){return 46+this.fileNameLength()+this.extraFieldLength()+this.fileCommentLength()},so.prototype.isDirectory=function(){var t=this.fileName();return!!(16&this.externalAttributes())||"/"===t.charAt(t.length-1)},so.prototype.isFile=function(){return!this.isDirectory()},so.prototype.useUTF8=function(){return 2048===(2048&this.flag())},so.prototype.isEncrypted=function(){return 1===(1&this.flag())},so.prototype.getFileData=function(){var t=this.headerRelativeOffset(),e=new eo(this.zipData.slice(t));return new no(e,this,this.zipData.slice(t+e.totalSize()))},so.prototype.getData=function(){return this.getFileData().decompress()},so.prototype.getRawData=function(){return this.getFileData().getRawData()},so.prototype.getStats=function(){return new Fe(Oe.FILE,this.uncompressedSize(),365,new Date,this.lastModFileTime())};var ao=function(t){if(this.data=t,101010256!==this.data.readUInt32LE(0))throw new be(ve.EINVAL,"Invalid Zip file: End of central directory record has invalid signature: "+this.data.readUInt32LE(0))};ao.prototype.diskNumber=function(){return 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