svelte-llm

import { json, error } from '@sveltejs/kit' import type { RequestHandler } from './$types' import { env } from '$env/dynamic/private' import { dev } from '$app/environment' import { logAlways, logErrorAlways } from '$lib/log' import v8 from 'node:v8' import { existsSync, mkdirSync } from 'node:fs' import { join } from 'node:path' export const GET: RequestHandler = async ({ url }) => { const secretKey = url.searchParams.get('secret_key') const envSecretKey = env.CONTENT_SYNC_SECRET_KEY || env.DISTILL_SECRET_KEY if (!envSecretKey) { throw error( 500, 'Server is not configured for heap snapshots (CONTENT_SYNC_SECRET_KEY not set)' ) } if (secretKey !== envSecretKey) { throw error(403, 'Invalid secret key') } try { // Use different output directories for dev vs production const outputDir = dev || env.DEV === 'true' ? './mount' : '/app/outputs' if (!existsSync(outputDir)) { logAlways('Creating outputs directory:', outputDir) mkdirSync(outputDir, { recursive: true }) } // Generate timestamp for unique filename const timestamp = new Date().toISOString().replace(/[:.]/g, '-') const filename = `heap-snapshot-${timestamp}.heapsnapshot` const filePath = join(outputDir, filename) logAlways('Writing heap snapshot to:', filePath) // Write the heap snapshot const heapSnapshotPath = v8.writeHeapSnapshot(filePath) // Get file stats for the response const fs = await import('node:fs/promises') const stats = await fs.stat(heapSnapshotPath) logAlways('Heap snapshot created successfully:', { path: heapSnapshotPath, size: stats.size, created: stats.birthtime, environment: dev ? 'development' : 'production' }) return json({ success: true, message: 'Heap snapshot created successfully', snapshot: { filename, path: heapSnapshotPath, size: stats.size, created: stats.birthtime.toISOString(), sizeFormatted: formatBytes(stats.size) }, environment: dev ? 'development' : 'production', timestamp: new Date().toISOString() }) } catch (e) { logErrorAlways('Error creating heap snapshot:', e) throw error( 500, `Failed to create heap snapshot: ${e instanceof Error ? e.message : String(e)}` ) } } /** * Format bytes into human readable format */ function formatBytes(bytes: number): string { if (bytes === 0) return '0 B' const k = 1024 const sizes = ['B', 'KB', 'MB', 'GB'] const i = Math.floor(Math.log(bytes) / Math.log(k)) return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i] }