nodedb-json
Version:
A lightweight JSON-based database for Node.js with TypeScript support, indexing, and complex query capabilities
86 lines • 2.91 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.ensureParentDirectory = ensureParentDirectory;
exports.cleanupTempFile = cleanupTempFile;
exports.fsyncDirectory = fsyncDirectory;
exports.writeFileAtomic = writeFileAtomic;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
function ensureParentDirectory(filePath) {
const directory = path.dirname(filePath);
if (directory && directory !== '.') {
fs.mkdirSync(directory, { recursive: true });
}
}
function cleanupTempFile(tempPath) {
if (fs.existsSync(tempPath)) {
fs.unlinkSync(tempPath);
}
}
function fsyncDirectory(directory) {
try {
const fd = fs.openSync(directory, 'r');
try {
fs.fsyncSync(fd);
}
finally {
fs.closeSync(fd);
}
}
catch (_a) {
// Some platforms/filesystems do not support fsync on directories.
}
}
function writeFileAtomic(filePath, content, options) {
ensureParentDirectory(filePath);
let fd;
try {
fd = fs.openSync(options.tempPath, 'w');
fs.writeFileSync(fd, content, 'utf-8');
fs.fsyncSync(fd);
}
finally {
if (fd !== undefined) {
fs.closeSync(fd);
}
}
if (options.backupOnWrite && fs.existsSync(filePath)) {
fs.copyFileSync(filePath, options.backupPath);
}
fs.renameSync(options.tempPath, filePath);
fsyncDirectory(path.dirname(filePath));
}
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