Files

pchuri 6aa306c584 feat: add stable file locking using std::fs APIs (#2894 )

## Summary

This PR implements advisory file locking for the message history using
Rust 1.89+ stabilized std::fs::File locking APIs, eliminating the need
for external dependencies.

## Key Changes

- **Stable API Usage**: Uses std::fs::File::try_lock() and
try_lock_shared() APIs stabilized in Rust 1.89
- **Cross-Platform Compatibility**: 
  - Unix systems use try_lock_shared() for advisory read locks
  - Windows systems use try_lock() due to different lock semantics
- **Retry Logic**: Maintains existing retry behavior for concurrent
access scenarios
- **No External Dependencies**: Removes need for external file locking
crates

## Technical Details

The implementation provides advisory file locking to prevent corruption
when multiple Codex processes attempt to write to the message history
file simultaneously. The locking is platform-aware to handle differences
in Windows vs Unix file locking behavior.

## Testing

- ✅ Builds successfully on all platforms
- ✅ Existing message history tests pass
- ✅ File locking retry logic verified

Related to discussion in #2773 about using stabilized Rust APIs instead
of external dependencies.

---------

Co-authored-by: Michael Bolin <bolinfest@gmail.com>

2025-09-02 23:46:27 -07:00

src

feat: add stable file locking using std::fs APIs (#2894 )

2025-09-02 23:46:27 -07:00

tests

Improve gpt-oss compatibility (#2461 )

2025-09-02 19:49:03 -07:00

Cargo.toml

Move CodexAuth and AuthManager to the core crate (#3074 )

2025-09-02 18:36:19 -07:00

prompt.md

feat: decrease testing when running interactively (#2707 )

2025-08-26 19:57:04 -07:00

README.md

fix: support special --codex-run-as-apply-patch arg (#1702 )

2025-07-28 09:26:44 -07:00

README.md

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

macOS

Expects /usr/bin/sandbox-exec to be present.

Linux

Expects the binary containing codex-core to run the equivalent of 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.