9ce6bbc43e
## Summary - avoid setting a new process group when stdio is inherited (keeps child in foreground PG) - keep process-group isolation when stdio is redirected so killpg cleanup still works - prevents macOS job-control SIGTTIN stops that look like hangs after output ## Testing - `cargo build -p codex-cli` - `GIT_CONFIG_GLOBAL=/dev/null GIT_CONFIG_NOSYSTEM=1 CARGO_BIN_EXE_codex=/Users/denis/Code/codex/codex-rs/target/debug/codex /opt/homebrew/bin/timeout 30m cargo test -p codex-core -p codex-exec` ## Context This fixes macOS sandbox hangs for commands like `elixir -v` / `erl -noshell`, where the child was moved into a new process group while still attached to the controlling TTY. See issue #8690. ## Authorship & collaboration - This change and analysis were authored by **Codex** (AI coding agent). - Human collaborator: @seeekr provided repro environment, context, and review guidance. - CLI used: `codex-cli 0.77.0`. - Model: `gpt-5.2-codex (xhigh)`. Co-authored-by: Eric Traut <etraut@openai.com>
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This repository is licensed under the Apache-2.0 License.