@rsksmart/rif-storage
Version:
Library integrating distributed storage projects
177 lines (176 loc) • 6.79 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __asyncValues = (this && this.__asyncValues) || function (o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.arrayFromAsyncIter = exports.lastAsyncIterItem = exports.detectAddress = exports.isReadableOrBuffer = exports.isReadable = exports.isTSDirectoryArray = exports.isTSDirectory = exports.isDirectory = exports.isFile = exports.markDirectory = exports.markFile = exports.DIRECTORY_SYMBOL = exports.FILE_SYMBOL = void 0;
const definitions_1 = require("./definitions");
const cids_1 = __importDefault(require("cids"));
exports.FILE_SYMBOL = Symbol.for('@rds-lib/file');
exports.DIRECTORY_SYMBOL = Symbol.for('@rds-lib/directory');
/**
* Function that marks an object with Symbol signaling that it is a Directory object.
*
* @see isFile
* @param obj
*/
function markFile(obj) {
if (typeof obj !== 'object' || obj === null) {
throw TypeError('obj is not object!');
}
// @ts-ignore: TS does not support indexing with Symbols - https://github.com/microsoft/TypeScript/issues/1863
obj[exports.FILE_SYMBOL] = true;
return obj;
}
exports.markFile = markFile;
/**
* Function that marks an object with Symbol signaling that it is a File object no matter what
* sort of implementation it is (Readable|Buffer|async generator etc)
*
* @see isDirectory
* @param obj
*/
function markDirectory(obj) {
if (typeof obj !== 'object' || obj === null) {
throw TypeError('obj is not object!');
}
// @ts-ignore: TS does not support indexing with Symbols - https://github.com/microsoft/TypeScript/issues/1863
obj[exports.DIRECTORY_SYMBOL] = true;
return obj;
}
exports.markDirectory = markDirectory;
/**
* Verifies if the returned object is a file
*
* @param obj
*/
function isFile(obj) {
if (typeof obj !== 'object' || obj === null) {
throw TypeError('obj is not object!');
}
// @ts-ignore: TS does not support indexing with Symbols - https://github.com/microsoft/TypeScript/issues/1863
return Boolean(obj[exports.FILE_SYMBOL]);
}
exports.isFile = isFile;
/**
* Verifies if the returned object is a directory
*
* @param obj
*/
function isDirectory(obj) {
if (typeof obj !== 'object' || obj === null) {
throw TypeError('obj is not object!');
}
// @ts-ignore: TS does not support indexing with Symbols - https://github.com/microsoft/TypeScript/issues/1863
return Boolean(obj[exports.DIRECTORY_SYMBOL]);
}
exports.isDirectory = isDirectory;
function isTSDirectory(data, genericTest) {
if (typeof data !== 'object' || Array.isArray(data) || data === null) {
return false;
}
return !Object.values(data).some(entry => typeof entry !== 'object' ||
!('data' in entry) ||
!genericTest(entry.data));
}
exports.isTSDirectory = isTSDirectory;
function isTSDirectoryArray(data, genericTest) {
if (!Array.isArray(data)) {
return false;
}
return !data.some(entry => typeof entry !== 'object' ||
!entry.data ||
!entry.path ||
!genericTest(entry.data));
}
exports.isTSDirectoryArray = isTSDirectoryArray;
function isReadable(entry) {
return typeof entry === 'object' &&
entry !== null &&
typeof entry.pipe === 'function' &&
entry.readable !== false &&
typeof entry._read === 'function';
}
exports.isReadable = isReadable;
function isReadableOrBuffer(entry) {
return Buffer.isBuffer(entry) || isReadable(entry);
}
exports.isReadableOrBuffer = isReadableOrBuffer;
function detectAddress(address) {
try {
// eslint-disable-next-line no-new
new cids_1.default(address);
return definitions_1.Provider.IPFS;
}
catch (e) {
if (address.length !== 64) {
return false;
}
return definitions_1.Provider.SWARM;
}
}
exports.detectAddress = detectAddress;
/**
* Fetches last item of the async iterable.
* @param iter
*/
function lastAsyncIterItem(iter) {
var iter_1, iter_1_1;
var e_1, _a;
return __awaiter(this, void 0, void 0, function* () {
let last;
try {
for (iter_1 = __asyncValues(iter); iter_1_1 = yield iter_1.next(), !iter_1_1.done;) {
const el = iter_1_1.value;
last = el;
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (iter_1_1 && !iter_1_1.done && (_a = iter_1.return)) yield _a.call(iter_1);
}
finally { if (e_1) throw e_1.error; }
}
return last;
});
}
exports.lastAsyncIterItem = lastAsyncIterItem;
function arrayFromAsyncIter(iter) {
var iter_2, iter_2_1;
var e_2, _a;
return __awaiter(this, void 0, void 0, function* () {
const arr = [];
try {
for (iter_2 = __asyncValues(iter); iter_2_1 = yield iter_2.next(), !iter_2_1.done;) {
const el = iter_2_1.value;
arr.push(el);
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (iter_2_1 && !iter_2_1.done && (_a = iter_2.return)) yield _a.call(iter_2);
}
finally { if (e_2) throw e_2.error; }
}
return arr;
});
}
exports.arrayFromAsyncIter = arrayFromAsyncIter;