Journal MCP Server

import { promises as fs } from 'node:fs'; import { dirname } from 'node:path'; /** * Ensure directory exists, creating it if necessary */ export async function ensureDir(dirPath: string): Promise<void> { try { await fs.access(dirPath); } catch { await fs.mkdir(dirPath, { recursive: true }); } } /** * Check if file exists */ export async function fileExists(filePath: string): Promise<boolean> { try { await fs.access(filePath); return true; } catch { return false; } } /** * Read file with error handling */ export async function readFileIfExists( filePath: string ): Promise<string | null> { try { return await fs.readFile(filePath, 'utf-8'); } catch { return null; } } /** * Write file with directory creation */ export async function writeFileWithDir( filePath: string, content: string ): Promise<void> { await ensureDir(dirname(filePath)); await fs.writeFile(filePath, content, 'utf-8'); } /** * Create backup of existing file */ export async function backupFile(filePath: string): Promise<string | null> { if (!(await fileExists(filePath))) { return null; } const timestamp = new Date().toISOString().replace(/[:.]/g, '-'); const backupPath = `${filePath}.backup.${timestamp}`; const content = await fs.readFile(filePath, 'utf-8'); await fs.writeFile(backupPath, content, 'utf-8'); return backupPath; } /** * Delete a file if it exists */ export async function deleteFile(filePath: string): Promise<void> { try { await fs.unlink(filePath); } catch (error) { // Ignore file not found errors if ((error as NodeJS.ErrnoException).code !== 'ENOENT') { throw error; } } }