Function writeThreadsFileAt

src/threads.ts:104–110

Atomic write of a threads file at an explicit path. Used by saveThreadIndex * and by legacy-global-file maintenance in the migration code below.

(filePath: string, index: ThreadIndex)

/** Atomic write of a threads file at an explicit path. Used by saveThreadIndex
 *  and by legacy-global-file maintenance in the migration code below. */
function writeThreadsFileAt(filePath: string, index: ThreadIndex): void {
  const dir = dirname(filePath);
  if (!existsSync(dir)) mkdirSync(dir, { recursive: true, mode: 0o700 });
  const tmpPath = filePath + ".tmp";
  writeFileSync(tmpPath, JSON.stringify(index, null, 2), { mode: 0o600 });
  renameSync(tmpPath, filePath);
}

export function saveThreadIndex(stateDir: string, index: ThreadIndex): void {
  writeThreadsFileAt(threadsFilePath(stateDir), index);