fswin32/src/utils.js

The ultimate Node.js module for detailed Windows file system access.

// src/utils.js

import { exec } from 'child_process';
import util from 'util';

const execPromise = util.promisify(exec);

/**
 * Converts bytes to a human-readable format (e.g., KB, MB, GB).
 * @param {number} bytes The size in bytes.
 * @param {number} decimals The number of decimal places.
 * @returns {string} The formatted size string.
 */
export const formatBytes = (bytes, decimals = 2) => {
    if (bytes === 0) return '0 Bytes';
    const k = 1024;
    const dm = decimals < 0 ? 0 : decimals;
    const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
};

/**
 * Executes a PowerShell command and returns the output.
 * @param {string} command The PowerShell command to execute.
 * @returns {Promise<string|null>} The stdout of the command or null on error.
 */
export const executePowerShellCommand = async (command) => {
    try {
        const { stdout } = await execPromise(`powershell -ExecutionPolicy Bypass -Command "${command}"`);
        return stdout;
    } catch (error) {
        // console.error('PowerShell command failed:', error.message);
        return null;
    }
};