## What
- Add the `--cask` flag to the Homebrew update command for Codex.
## Why
- `brew upgrade codex` alone does not update the cask, so users were not
getting the right upgrade instructions.
## How
- Update `UpdateAction::BrewUpgrade` in `codex-rs/tui/src/updates.rs` to
use `upgrade --cask codex`.
## Testing
- [x] cargo test -p codex-tui
Co-authored-by: Thibault Sottiaux <tibo@openai.com>
Instead of printing characters before booting the app, make the upgrade
banner a history cell so it's well-behaved.
<img width="771" height="586" alt="Screenshot 2025-10-16 at 4 20 51 PM"
src="https://github.com/user-attachments/assets/90629d47-2c3d-4970-a826-283795ab34e5"
/>
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Co-authored-by: Josh McKinney <joshka@openai.com>
The previous config approach had a few issues:
1. It is part of the config but not designed to be used externally
2. It had to be wired through many places (look at the +/- on this PR
3. It wasn't guaranteed to be set consistently everywhere because we
don't have a super well defined way that configs stack. For example, the
extension would configure during newConversation but anything that
happened outside of that (like login) wouldn't get it.
This env var approach is cleaner and also creates one less thing we have
to deal with when coming up with a better holistic story around configs.
One downside is that I removed the unit test testing for the override
because I don't want to deal with setting the global env or spawning
child processes and figuring out how to introspect their originator
header. The new code is sufficiently simple and I tested it e2e that I
feel as if this is still worth it.
1. Ping https://api.github.com/repos/openai/codex/releases/latest (at
most once every 20 hrs)
2. Store the result in ~/.codex/version.jsonl
3. If CARGO_PKG_VERSION < latest_version, print a message at boot.
---------
Co-authored-by: easong-openai <easong@openai.com>
