Migration script for app-state does not migrate derived #16758
Description
Describe the bug
I have some global derived store that are derived from the deprecated page store ($app/stores). Now, I want to migrate them with the script, but it does not work (it does nothing), so I need to do it manually. And I am not 100% sure if I am doing it correctly, retaining the reactivity (any suggestion welcomed).
Reproduction
put this snippet in a file
import { page } from '$app/stores';
import type { OptionString } from '$lib/types/string';
import { derived, type Readable } from 'svelte/store';
export const routeToken: Readable<OptionString> = derived(
[page],
([
{
data: { token }
}
]) => token
);and run
npx sv migrate app-state
Logs
Nothing happens or changes:
npx sv migrate app-state
┌ Welcome to the svelte-migrate CLI! (v1.10.1)
│
▲ This will update files in the current directory.
│ If you're inside a monorepo, don't run this in the root directory, rather run it in all projects independently.
│
◇ Continue?
│ Yes
│
◇ Which folders should be migrated?
│ src
│
◆ ✔ Your project has been migrated
│
◇ Recommended next steps: ──────────────────────────────╮
│ │
│ 1: Install the updated dependencies by running npm i │
│ 2: git commit -m "migration to $app/state" │
│ 3: Run git diff to review changes. │
│ │
├────────────────────────────────────────────────────────╯
│
└ You're all set!System Info
System:
OS: macOS 15.6.1
CPU: (11) arm64 Apple M3 Pro
Memory: 112.69 MB / 36.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 22.17.0 - /usr/local/bin/node
Yarn: 1.22.22 - /usr/local/bin/yarn
npm: 10.9.2 - /usr/local/bin/npm
pnpm: 10.12.1 - /usr/local/bin/pnpm
Browsers:
Chrome: 140.0.7339.133
Safari: 18.6
npmPackages:
svelte: ^5.33.18 => 5.33.18Severity
annoyance