8 lines
43 KiB
JavaScript
8 lines
43 KiB
JavaScript
!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.LightningFS=e():t.LightningFS=e()}(self,(function(){return function(t){var e={};function r(i){if(e[i])return e[i].exports;var n=e[i]={i:i,l:!1,exports:{}};return t[i].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.m=t,r.c=e,r.d=function(t,e,i){r.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:i})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(t,e){if(1&e&&(t=r(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var i=Object.create(null);if(r.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:t}),2&e&&"string"!=typeof t)for(var n in t)r.d(i,n,function(e){return t[e]}.bind(null,n));return i},r.n=function(t){var e=t&&t.__esModule?function(){return t.default}:function(){return t};return r.d(e,"a",e),e},r.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},r.p="",r(r.s=4)}([function(t,e){var r;r=function(){return this}();try{r=r||new Function("return this")()}catch(t){"object"==typeof window&&(r=window)}t.exports=r},function(t,e){function r(t){if(0===t.length)return".";let e=n(t);return e=e.reduce(o,[]),i(...e)}function i(...t){if(0===t.length)return"";let e=t.join("/");return e=e.replace(/\/{2,}/g,"/"),e}function n(t){if(0===t.length)return[];if("/"===t)return["/"];let e=t.split("/");return""===e[e.length-1]&&e.pop(),"/"===t[0]?e[0]="/":"."!==e[0]&&e.unshift("."),e}function o(t,e){if(0===t.length)return t.push(e),t;if("."===e)return t;if(".."===e){if(1===t.length){if("/"===t[0])throw new Error("Unable to normalize path - traverses above root directory");if("."===t[0])return t.push(e),t}return".."===t[t.length-1]?(t.push(".."),t):(t.pop(),t)}return t.push(e),t}t.exports={join:i,normalize:r,split:n,basename:function(t){if("/"===t)throw new Error(`Cannot get basename of "${t}"`);const e=t.lastIndexOf("/");return-1===e?t:t.slice(e+1)},dirname:function(t){const e=t.lastIndexOf("/");if(-1===e)throw new Error(`Cannot get dirname of "${t}"`);return 0===e?"/":t.slice(0,e)},resolve:function(...t){let e="";for(let n of t)e=n.startsWith("/")?n:r(i(e,n));return e}}},function(t,e){function r(t){return class extends Error{constructor(...e){super(...e),this.code=t,this.message?this.message=t+": "+this.message:this.message=t}}}const i=r("EEXIST"),n=r("ENOENT"),o=r("ENOTDIR"),s=r("ENOTEMPTY"),a=r("ETIMEDOUT");t.exports={EEXIST:i,ENOENT:n,ENOTDIR:o,ENOTEMPTY:s,ETIMEDOUT:a}},function(t,e,r){"use strict";r.r(e),r.d(e,"Store",(function(){return i})),r.d(e,"get",(function(){return a})),r.d(e,"set",(function(){return u})),r.d(e,"update",(function(){return c})),r.d(e,"del",(function(){return f})),r.d(e,"clear",(function(){return l})),r.d(e,"keys",(function(){return p})),r.d(e,"close",(function(){return d}));class i{constructor(t="keyval-store",e="keyval"){this.storeName=e,this._dbName=t,this._storeName=e,this.id=`dbName:${t};;storeName:${e}`,this._init()}_init(){this._dbp||(this._dbp=new Promise((t,e)=>{const r=indexedDB.open(this._dbName);r.onerror=()=>e(r.error),r.onsuccess=()=>t(r.result),r.onupgradeneeded=()=>{r.result.createObjectStore(this._storeName)}}))}_withIDBStore(t,e){return this._init(),this._dbp.then(r=>new Promise((i,n)=>{const o=r.transaction(this.storeName,t);o.oncomplete=()=>i(),o.onabort=o.onerror=()=>n(o.error),e(o.objectStore(this.storeName))}))}_close(){return this._init(),this._dbp.then(t=>{t.close(),this._dbp=void 0})}}class n{constructor(t){this.executor=t,this.items=[]}async process(){const t=this.items;this.items=[],await this.executor(t.map(({item:t})=>t)),t.map(({onProcessed:t})=>t()),this.items.length?this.ongoing=this.process():this.ongoing=void 0}async queue(t){const e=new 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t&&(e=t);return[(...t)=>e(null,...t),e=i(e)]}t.exports=class{constructor(...t){this.promises=new 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e,r;if("function"!=typeof t)throw new Error("expected a function but got "+t);return function(){return e?r:(e=!0,r=t.apply(this,arguments))}}},function(t,e,r){const{encode:i,decode:n}=r(7),o=r(13),s=r(14),a=r(15),{ENOENT:h,ENOTEMPTY:u,ETIMEDOUT:c}=r(2),f=r(16),l=r(17),p=r(18),d=r(19),w=r(1);r(20);function _(t,e){return void 0!==e&&"function"!=typeof e||(e={}),"string"==typeof e&&(e={encoding:e}),[t=w.normalize(t),e]}function y(t,e){return[w.normalize(t),w.normalize(e)]}t.exports=class{constructor(t,e){this.init=this.init.bind(this),this.readFile=this._wrap(this.readFile,!1),this.writeFile=this._wrap(this.writeFile,!0),this.unlink=this._wrap(this.unlink,!0),this.readdir=this._wrap(this.readdir,!1),this.mkdir=this._wrap(this.mkdir,!0),this.rmdir=this._wrap(this.rmdir,!0),this.rename=this._wrap(this.rename,!0),this.stat=this._wrap(this.stat,!1),this.lstat=this._wrap(this.lstat,!1),this.readlink=this._wrap(this.readlink,!1),this.symlink=this._wrap(this.symlink,!0),this.backFile=this._wrap(this.backFile,!0),this.du=this._wrap(this.du,!1),this.saveSuperblock=o(()=>{this._saveSuperblock()},500),this._deactivationPromise=null,this._deactivationTimeout=null,this._activationPromise=null,this._operations=new Set,t&&this.init(t,e)}async init(...t){return this._initPromiseResolve&&await this._initPromise,this._initPromise=this._init(...t),this._initPromise}async _init(t,{wipe:e,url:r,urlauto:i,fileDbName:n=t,fileStoreName:o=t+"_files",lockDbName:s=t+"_lock",lockStoreName:h=t+"_lock",defer:u=!1}={}){await this._gracefulShutdown(),this._name=t,this._idb=new f(n,o),this._mutex=navigator.locks?new d(t):new p(s,h),this._cache=new a(t),this._opts={wipe:e,url:r},this._needsWipe=!!e,r&&(this._http=new l(r),this._urlauto=!!i),this._initPromiseResolve&&(this._initPromiseResolve(),this._initPromiseResolve=null),u||this.stat("/")}async _gracefulShutdown(){this._operations.size>0&&(this._isShuttingDown=!0,await new Promise(t=>this._gracefulShutdownResolve=t),this._isShuttingDown=!1,this._gracefulShutdownResolve=null)}_wrap(t,e){return async(...r)=>{let i={name:t.name,args:r};this._operations.add(i);try{return await this._activate(),await t.apply(this,r)}finally{this._operations.delete(i),e&&this.saveSuperblock(),0===this._operations.size&&(this._deactivationTimeout||clearTimeout(this._deactivationTimeout),this._deactivationTimeout=setTimeout(this._deactivate.bind(this),500))}}}async _activate(){if(this._initPromise||console.warn(new Error(`Attempted to use LightningFS ${this._name} before it was initialized.`)),await this._initPromise,this._deactivationTimeout&&(clearTimeout(this._deactivationTimeout),this._deactivationTimeout=null),this._deactivationPromise&&await this._deactivationPromise,this._deactivationPromise=null,this._activationPromise||(this._activationPromise=this.__activate()),await this._activationPromise,!await this._mutex.has())throw new c}async __activate(){if(this._cache.activated)return;this._needsWipe&&(this._needsWipe=!1,await this._idb.wipe(),await this._mutex.release({force:!0})),await this._mutex.has()||await this._mutex.wait();const t=await this._idb.loadSuperblock();if(t)this._cache.activate(t);else if(this._http){const t=await this._http.loadSuperblock();this._cache.activate(t),await this._saveSuperblock()}else this._cache.activate()}async _deactivate(){return this._activationPromise&&await this._activationPromise,this._deactivationPromise||(this._deactivationPromise=this.__deactivate()),this._activationPromise=null,this._gracefulShutdownResolve&&this._gracefulShutdownResolve(),this._deactivationPromise}async __deactivate(){await this._mutex.has()&&await this._saveSuperblock(),this._cache.deactivate();try{await this._mutex.release()}catch(t){console.log(t)}await this._idb.close()}async _saveSuperblock(){this._cache.activated&&(this._lastSavedAt=Date.now(),await this._idb.saveSuperblock(this._cache._root))}async _writeStat(t,e,r){let i=w.split(w.dirname(t)),n=i.shift();for(let t of i){n=w.join(n,t);try{this._cache.mkdir(n,{mode:511})}catch(t){}}return this._cache.writeStat(t,e,r)}async readFile(t,e){[t,e]=_(t,e);const{encoding:r}=e;if(r&&"utf8"!==r)throw new Error('Only "utf8" encoding is supported in readFile');let i=null,o=null;try{o=this._cache.stat(t),i=await this._idb.readFile(o.ino)}catch(t){if(!this._urlauto)throw t}if(!i&&this._http){let e=this._cache.lstat(t);for(;"symlink"===e.type;)t=w.resolve(w.dirname(t),e.target),e=this._cache.lstat(t);i=await this._http.readFile(t)}if(i&&(o&&o.size==i.byteLength||(o=await this._writeStat(t,i.byteLength,{mode:o?o.mode:438}),this.saveSuperblock()),"utf8"===r&&(i=n(i))),!o)throw new h(t);return i}async writeFile(t,e,r){[t,r]=_(t,r);const{mode:n,encoding:o="utf8"}=r;if("string"==typeof e){if("utf8"!==o)throw new Error('Only "utf8" encoding is supported in writeFile');e=i(e)}const s=await this._cache.writeStat(t,e.byteLength,{mode:n});return await this._idb.writeFile(s.ino,e),null}async unlink(t,e){[t,e]=_(t,e);const r=this._cache.lstat(t);return this._cache.unlink(t),"symlink"!==r.type&&await this._idb.unlink(r.ino),null}async readdir(t,e){return[t,e]=_(t,e),this._cache.readdir(t)}async mkdir(t,e){[t,e]=_(t,e);const{mode:r=511}=e;return await this._cache.mkdir(t,{mode:r}),null}async rmdir(t,e){if([t,e]=_(t,e),"/"===t)throw new u;return this._cache.rmdir(t),null}async rename(t,e){return[t,e]=y(t,e),this._cache.rename(t,e),null}async stat(t,e){[t,e]=_(t,e);const r=this._cache.stat(t);return new s(r)}async lstat(t,e){[t,e]=_(t,e);let r=this._cache.lstat(t);return new s(r)}async readlink(t,e){return[t,e]=_(t,e),this._cache.readlink(t)}async symlink(t,e){return[t,e]=y(t,e),this._cache.symlink(t,e),null}async backFile(t,e){[t,e]=_(t,e);let r=await this._http.sizeFile(t);return await this._writeStat(t,r,e),null}async du(t){return this._cache.du(t)}}},function(t,e,r){r(8),t.exports={encode:t=>(new TextEncoder).encode(t),decode:t=>(new TextDecoder).decode(t)}},function(t,e,r){(function(t,e){!function(t){function r(){}function i(t,e){if(t=void 0===t?"utf-8":t,e=void 0===e?{fatal:!1}:e,-1===o.indexOf(t.toLowerCase()))throw new RangeError("Failed to construct 'TextDecoder': The encoding label provided ('"+t+"') is invalid.");if(e.fatal)throw Error("Failed to construct 'TextDecoder': the 'fatal' option is unsupported.")}function n(t){for(var e=0,r=Math.min(65536,t.length+1),i=new Uint16Array(r),n=[],o=0;;){var s=e<t.length;if(!s||o>=r-1){if(n.push(String.fromCharCode.apply(null,i.subarray(0,o))),!s)return n.join("");t=t.subarray(e),o=e=0}if(0==(128&(s=t[e++])))i[o++]=s;else if(192==(224&s)){var a=63&t[e++];i[o++]=(31&s)<<6|a}else if(224==(240&s)){a=63&t[e++];var h=63&t[e++];i[o++]=(31&s)<<12|a<<6|h}else if(240==(248&s)){65535<(s=(7&s)<<18|(a=63&t[e++])<<12|(h=63&t[e++])<<6|63&t[e++])&&(s-=65536,i[o++]=s>>>10&1023|55296,s=56320|1023&s),i[o++]=s}}}if(t.TextEncoder&&t.TextDecoder)return!1;var o=["utf-8","utf8","unicode-1-1-utf-8"];Object.defineProperty(r.prototype,"encoding",{value:"utf-8"}),r.prototype.encode=function(t,e){if((e=void 0===e?{stream:!1}:e).stream)throw Error("Failed to encode: the 'stream' option is unsupported.");e=0;for(var r=t.length,i=0,n=Math.max(32,r+(r>>>1)+7),o=new Uint8Array(n>>>3<<3);e<r;){var s=t.charCodeAt(e++);if(55296<=s&&56319>=s){if(e<r){var a=t.charCodeAt(e);56320==(64512&a)&&(++e,s=((1023&s)<<10)+(1023&a)+65536)}if(55296<=s&&56319>=s)continue}if(i+4>o.length&&(n+=8,n=(n*=1+e/t.length*2)>>>3<<3,(a=new Uint8Array(n)).set(o),o=a),0==(4294967168&s))o[i++]=s;else{if(0==(4294965248&s))o[i++]=s>>>6&31|192;else if(0==(4294901760&s))o[i++]=s>>>12&15|224,o[i++]=s>>>6&63|128;else{if(0!=(4292870144&s))continue;o[i++]=s>>>18&7|240,o[i++]=s>>>12&63|128,o[i++]=s>>>6&63|128}o[i++]=63&s|128}}return o.slice?o.slice(0,i):o.subarray(0,i)},Object.defineProperty(i.prototype,"encoding",{value:"utf-8"}),Object.defineProperty(i.prototype,"fatal",{value:!1}),Object.defineProperty(i.prototype,"ignoreBOM",{value:!1});var s=n;"function"==typeof e&&e.from?s=function(t){return e.from(t.buffer,t.byteOffset,t.byteLength).toString("utf-8")}:"function"==typeof Blob&&"function"==typeof URL&&"function"==typeof URL.createObjectURL&&(s=function(t){var e=URL.createObjectURL(new Blob([t],{type:"text/plain;charset=UTF-8"}));try{var r=new XMLHttpRequest;return r.open("GET",e,!1),r.send(),r.responseText}catch(e){return n(t)}finally{URL.revokeObjectURL(e)}}),i.prototype.decode=function(t,e){if((e=void 0===e?{stream:!1}:e).stream)throw Error("Failed to decode: the 'stream' option is unsupported.");return t=t instanceof Uint8Array?t:t.buffer instanceof ArrayBuffer?new Uint8Array(t.buffer):new Uint8Array(t),s(t)},t.TextEncoder=r,t.TextDecoder=i}("undefined"!=typeof window?window:void 0!==t?t:this)}).call(this,r(0),r(9).Buffer)},function(t,e,r){"use strict";(function(t){
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/*!
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* The buffer module from node.js, for the browser.
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*
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* @author Feross Aboukhadijeh <http://feross.org>
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* @license MIT
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*/
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var i=r(10),n=r(11),o=r(12);function s(){return h.TYPED_ARRAY_SUPPORT?2147483647:1073741823}function a(t,e){if(s()<e)throw new RangeError("Invalid typed array length");return h.TYPED_ARRAY_SUPPORT?(t=new Uint8Array(e)).__proto__=h.prototype:(null===t&&(t=new h(e)),t.length=e),t}function h(t,e,r){if(!(h.TYPED_ARRAY_SUPPORT||this instanceof h))return new h(t,e,r);if("number"==typeof t){if("string"==typeof e)throw new Error("If encoding is specified then the first argument must be a string");return f(this,t)}return u(this,t,e,r)}function u(t,e,r,i){if("number"==typeof e)throw new TypeError('"value" argument must not be a number');return"undefined"!=typeof ArrayBuffer&&e instanceof ArrayBuffer?function(t,e,r,i){if(e.byteLength,r<0||e.byteLength<r)throw new RangeError("'offset' is out of bounds");if(e.byteLength<r+(i||0))throw new RangeError("'length' is out of bounds");e=void 0===r&&void 0===i?new Uint8Array(e):void 0===i?new Uint8Array(e,r):new 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