GMail Manager MCP

import fs from 'fs'; import path from 'path'; import os from 'os'; export const CONFIG_DIR = path.join(os.homedir(), '.gmail-mcp'); /** * Find a file in multiple possible paths */ export function findFileInPaths(filename: string, possiblePaths: string[]): string | null { for (const basePath of possiblePaths) { if (!basePath) continue; const filePath = path.join(basePath, filename); if (fs.existsSync(filePath)) { return filePath; } } return null; } /** * Get all possible base paths for file resolution */ export function getPossibleBasePaths(): string[] { const paths = [ process.cwd(), path.dirname(__filename), // dist/ path.dirname(path.dirname(__filename)), // project root (from dist/) path.dirname(path.dirname(path.dirname(__filename))), // parent of project root CONFIG_DIR ]; // Add environment variable paths if (process.env.GMAIL_OAUTH_PATH) { paths.unshift(path.dirname(process.env.GMAIL_OAUTH_PATH)); } if (process.env.GMAIL_CREDENTIALS_PATH) { paths.unshift(path.dirname(process.env.GMAIL_CREDENTIALS_PATH)); } // Remove duplicates and non-existent paths return [...new Set(paths)].filter(p => p && fs.existsSync(p)); } /** * Find OAuth keys file */ export function findOAuthKeys(): string | null { const possiblePaths = getPossibleBasePaths(); return findFileInPaths('gcp-oauth.keys.json', possiblePaths); } /** * Find credentials file */ export function findCredentials(): string | null { if (process.env.GMAIL_CREDENTIALS_PATH) { return fs.existsSync(process.env.GMAIL_CREDENTIALS_PATH) ? process.env.GMAIL_CREDENTIALS_PATH : null; } const possiblePaths = getPossibleBasePaths(); return findFileInPaths('credentials.json', possiblePaths); }