@lodestar/beacon-node/lib/util/file.js

A Typescript implementation of the beacon chain

import fs from "node:fs";
import { promisify } from "node:util";
/** Ensure a directory exists */
export async function ensureDir(path) {
    try {
        await promisify(fs.stat)(path);
    }
    catch (_) {
        // not exists
        await promisify(fs.mkdir)(path, { recursive: true });
    }
}
/** Write data to a file if it does not exist */
export async function writeIfNotExist(filepath, bytes) {
    try {
        await promisify(fs.stat)(filepath);
        return false;
        // file exists, do nothing
    }
    catch (_) {
        // not exists
        await promisify(fs.writeFile)(filepath, bytes);
        return true;
    }
}
/** Remove a file if it exists */
export async function removeFile(path) {
    try {
        await promisify(fs.unlink)(path);
        return true;
    }
    catch (_) {
        // may not exists
        return false;
    }
}
export async function readFile(path) {
    try {
        return await fs.promises.readFile(path);
    }
    catch (_) {
        return null;
    }
}
export async function readFileNames(folderPath) {
    try {
        return await fs.promises.readdir(folderPath);
    }
    catch (_) {
        return [];
    }
}
//# sourceMappingURL=file.js.map