JUAN DAVID SALAS CAMARGO
e0ae219f36
Fixes #9501 Contributing guide: https://github.com/openai/codex/blob/main/docs/contributing.md ## Summary The resume picker requires a session_meta line and at least one user_message event within the initial head scan. Some rollout files contain multiple session_meta entries before the first user_message, so the user event can fall outside the default head window and the session is omitted from the picker even though it is resumable by ID. This PR keeps the head summary bounded but extends scanning for a user_message once a session_meta has been observed. The summary still caps stored head entries, but we allow a small, bounded extra scan to find the first user event so valid sessions are not filtered out. ## Changes - Continue scanning past the head limit (bounded) when session_meta is present but no user_message has been seen yet. - Mark session_meta as seen even if the head summary buffer is already full. - Add a regression test with multiple session_meta lines before the first user_message. ## Why This Is Safe - The head summary remains bounded to avoid unbounded memory usage. - The extra scan is capped (USER_EVENT_SCAN_LIMIT) and only triggers after a session_meta is seen. - Behavior is unchanged for typical files where the user_message appears early. ## Testing - cargo test -p codex-core --lib test_list_threads_scans_past_head_for_user_event
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Dependencies
Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this support matrix is:
macOS
Expects /usr/bin/sandbox-exec to be present.
When using the workspace-write sandbox policy, the Seatbelt profile allows
writes under the configured writable roots while keeping .git (directory or
pointer file), the resolved gitdir: target, and .codex read-only.
Linux
Expects the binary containing codex-core to run the equivalent of codex sandbox linux (legacy alias: codex debug landlock) when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.
All Platforms
Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.