Function updateTask

src/utils/tasks.ts:370–391

(
  taskListId: string,
  taskId: string,
  updates: Partial<Omit<Task, 'id'>>,
)

}

export async function updateTask(
  taskListId: string,
  taskId: string,
  updates: Partial<Omit<Task, 'id'>>,
): Promise<Task | null> {
  const path = getTaskPath(taskListId, taskId)

  // Check existence before locking — proper-lockfile throws if the
  // target file doesn't exist, and we want a clean null result.
  const taskBeforeLock = await getTask(taskListId, taskId)
  if (!taskBeforeLock) {
    return null
  }

  let release: (() => Promise<void>) | undefined
  try {
    release = await lockfile.lock(path, LOCK_OPTIONS)
    return await updateTaskUnsafe(taskListId, taskId, updates)
  } finally {
    await release?.()
  }
}

export async function deleteTask(
  taskListId: string,