Claude Infinite Context

import { access } from 'fs/promises'; import { logger } from './logger.js'; import { ProjectState, ProjectStateSchema } from '../types/schema.js'; /** * File validation utilities */ /** * Checks if a file exists and is accessible */ export async function fileExists(filePath: string): Promise<boolean> { try { await access(filePath); return true; } catch { return false; } } /** * Validates an array of file paths and returns existing/missing files */ export async function validateFiles(filePaths: string[]): Promise<{ existing: string[]; missing: string[]; }> { const results = await Promise.all( filePaths.map(async (path) => ({ path, exists: await fileExists(path), })) ); const existing = results.filter((r) => r.exists).map((r) => r.path); const missing = results.filter((r) => !r.exists).map((r) => r.path); if (missing.length > 0) { logger.warn('Some files no longer exist', { missing }); } return { existing, missing }; } /** * Filters out non-existent files from a list */ export async function filterExistingFiles(filePaths: string[]): Promise<string[]> { const { existing } = await validateFiles(filePaths); return existing; } /** * Validates project state against schema */ export function validateProjectState(data: unknown): ProjectState { const parsed = ProjectStateSchema.safeParse(data); if (!parsed.success) { logger.error('Invalid project state schema', { error: parsed.error }); throw new Error(`Schema validation failed: ${parsed.error.message}`); } return parsed.data; }