reshuffle
Version:
Reshuffle is a fast, unopinionated, minimalist integration framework
212 lines • 9.29 kB
JavaScript
"use strict";
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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 __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
exports.__esModule = true;
var fs_1 = require("fs");
var async_mutex_1 = require("async-mutex");
var is_valid_path_1 = __importDefault(require("is-valid-path"));
var FileData = /** @class */ (function () {
function FileData(path) {
this.path = path;
if (!is_valid_path_1["default"](path)) {
throw new Error("Invalid filesystem path: " + path);
}
}
FileData.prototype.read = function () {
return __awaiter(this, void 0, void 0, function () {
var json, e_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this.data) {
return [2 /*return*/, this.data];
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, fs_1.promises.readFile(this.path, 'utf-8')];
case 2:
json = _a.sent();
return [2 /*return*/, (this.data = JSON.parse(json))];
case 3:
e_1 = _a.sent();
if (e_1.code === 'ENOENT') {
return [2 /*return*/, (this.data = {})];
}
else {
throw e_1;
}
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
});
};
FileData.prototype.write = function () {
return __awaiter(this, void 0, void 0, function () {
var json;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
json = JSON.stringify(this.data || {});
return [4 /*yield*/, fs_1.promises.writeFile(this.path, json, 'utf-8')];
case 1:
_a.sent();
return [2 /*return*/];
}
});
});
};
return FileData;
}());
var FileStoreAdapter = /** @class */ (function () {
function FileStoreAdapter(path) {
this.mutex = new async_mutex_1.Mutex();
this.fileData = new FileData(path);
}
FileStoreAdapter.prototype.del = function (key) {
return __awaiter(this, void 0, void 0, function () {
var data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.fileData.read()];
case 1:
data = _a.sent();
delete data[key];
return [4 /*yield*/, this.fileData.write()];
case 2:
_a.sent();
return [2 /*return*/];
}
});
});
};
FileStoreAdapter.prototype.get = function (key) {
return __awaiter(this, void 0, void 0, function () {
var data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.fileData.read()];
case 1:
data = _a.sent();
return [2 /*return*/, data[key]];
}
});
});
};
FileStoreAdapter.prototype.list = function () {
return __awaiter(this, void 0, void 0, function () {
var data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.fileData.read()];
case 1:
data = _a.sent();
return [2 /*return*/, Object.keys(data)];
}
});
});
};
FileStoreAdapter.prototype.set = function (key, value) {
return __awaiter(this, void 0, void 0, function () {
var data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.fileData.read()];
case 1:
data = _a.sent();
data[key] = value;
return [4 /*yield*/, this.fileData.write()];
case 2:
_a.sent();
return [2 /*return*/, value];
}
});
});
};
FileStoreAdapter.prototype.update = function (key, updater) {
return __awaiter(this, void 0, void 0, function () {
var release, data, val, oldValue, newValue;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.mutex.acquire()];
case 1:
release = _a.sent();
_a.label = 2;
case 2:
_a.trys.push([2, , 7, 8]);
return [4 /*yield*/, this.fileData.read()];
case 3:
data = _a.sent();
val = data[key];
oldValue = typeof val === 'object' ? __assign({}, val) : val;
return [4 /*yield*/, updater(oldValue)];
case 4:
newValue = _a.sent();
if (!(newValue !== undefined)) return [3 /*break*/, 6];
data[key] = newValue;
return [4 /*yield*/, this.fileData.write()];
case 5:
_a.sent();
_a.label = 6;
case 6: return [2 /*return*/, [oldValue, newValue]];
case 7:
release();
return [7 /*endfinally*/];
case 8: return [2 /*return*/];
}
});
});
};
return FileStoreAdapter;
}());
exports["default"] = FileStoreAdapter;
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