tessradb/lib/atomWrite.js

A local noSQL database

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.objWriteStream = exports.writeFileSync = exports.writeFile = void 0;
const fs = require("fs");
const path = require("path");
const JSONS = require("JSONStream");
function getTemp(name) {
    return path.join(path.dirname(name), path.basename(name) + ".tetmp");
}
async function writeFile(fileName, data) {
    let tempFileName = getTemp(fileName);
    await fs.promises.writeFile(tempFileName, data, "utf-8");
    await fs.promises.rename(tempFileName, fileName);
}
exports.writeFile = writeFile;
function writeFileSync(fileName, data) {
    let tempFileName = getTemp(fileName);
    fs.writeFileSync(tempFileName, data, "utf-8");
    fs.renameSync(tempFileName, fileName);
}
exports.writeFileSync = writeFileSync;
async function objWriteStream(fileName) {
    let tempFileName = getTemp(fileName);
    let writeStream = fs.createWriteStream(tempFileName);
    let objStream = JSONS.stringify("[", ",", "]");
    objStream.pipe(writeStream);
    async function end() {
        objStream.end();
        await fs.promises.rename(tempFileName, fileName);
        writeStream.destroy();
    }
    return { stream: objStream, end };
}
exports.objWriteStream = objWriteStream;
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