Function hasCodeGraphSchema

src/directory.ts:190–198

(dbPath: string, st: fs.Stats)

const schemaProbeCache = new Map<string, { mtimeMs: number; size: number; ok: boolean }>();

function hasCodeGraphSchema(dbPath: string, st: fs.Stats): boolean {
  if (!st.isFile() || st.size < SQLITE_HEADER_SIZE) return false;
  const cached = schemaProbeCache.get(dbPath);
  if (cached && cached.mtimeMs === st.mtimeMs && cached.size === st.size) return cached.ok;
  const probe = probeSchema(dbPath);
  const ok = probe === 'schema' || probe === 'unknown';
  schemaProbeCache.set(dbPath, { mtimeMs: st.mtimeMs, size: st.size, ok });
  return ok;
}

/**
 * What `codegraph.db` holds, asked of SQLite itself through a read-only