mirror of
https://github.com/pchuan98/codex.git
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Owen Lin
edacbf7b6e
zsh fork PR stack: - https://github.com/openai/codex/pull/12051 - https://github.com/openai/codex/pull/12052 👈 ### Summary This PR introduces a feature-gated native shell runtime path that routes shell execution through a patched zsh exec bridge, removing MCP-specific behavior from the shell hot path while preserving existing CommandExecution lifecycle semantics. When shell_zsh_fork is enabled, shell commands run via patched zsh with per-`execve` interception through EXEC_WRAPPER. Core receives wrapper IPC requests over a Unix socket, applies existing approval policy, and returns allow/deny before the subcommand executes. ### What’s included **1) New zsh exec bridge runtime in core** - Wrapper-mode entrypoint (maybe_run_zsh_exec_wrapper_mode) for EXEC_WRAPPER invocations. - Per-execution Unix-socket IPC handling for wrapper requests/responses. - Approval callback integration using existing core approval orchestration. - Streaming stdout/stderr deltas to existing command output event pipeline. - Error handling for malformed IPC, denial/abort, and execution failures. **2) Session lifecycle integration** SessionServices now owns a `ZshExecBridge`. Session startup initializes bridge state; shutdown tears it down cleanly. **3) Shell runtime routing (feature-gated)** When `shell_zsh_fork` is enabled: - Build execution env/spec as usual. - Add wrapper socket env wiring. - Execute via `zsh_exec_bridge.execute_shell_request(...)` instead of the regular shell path. - Non-zsh-fork behavior remains unchanged. **4) Config + feature wiring** - Added `Feature::ShellZshFork` (under development). - Added config support for `zsh_path` (optional absolute path to patched zsh): - `Config`, `ConfigToml`, `ConfigProfile`, overrides, and schema. - Session startup validates that `zsh_path` exists/usable when zsh-fork is enabled. - Added startup test for missing `zsh_path` failure mode. **5) Seatbelt/sandbox updates for wrapper IPC** - Extended seatbelt policy generation to optionally allow outbound connection to explicitly permitted Unix sockets. - Wired sandboxing path to pass wrapper socket path through to seatbelt policy generation. - Added/updated seatbelt tests for explicit socket allow rule and argument emission. **6) Runtime entrypoint hooks** - This allows the same binary to act as the zsh wrapper subprocess when invoked via `EXEC_WRAPPER`. **7) Tool selection behavior** - ToolsConfig now prefers ShellCommand type when shell_zsh_fork is enabled. - Added test coverage for precedence with unified-exec enabled.
edacbf7b6e
·
2026-02-17 20:19:53 -08:00
3,786 Commits
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