mirror of
https://github.com/pchuan98/codex.git
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Michael Bolin
bc10e5b390
## Why #23756 makes packaged Codex builds include and default to the bundled zsh fork. The important reason to put that fork's directory at the front of `PATH` is to keep executable-level escalation working after a command leaves the original shell and later re-enters zsh through `env`. The expected chain is: 1. The zsh fork runs the top-level shell command. 2. That command launches another program, such as `python3`, while inheriting the `EXEC_WRAPPER` environment and the escalation socket fd. 3. That program spawns a shell script whose shebang is `#!/usr/bin/env zsh` rather than `#!/bin/zsh`, and it does not close the escalation fd. 4. `/usr/bin/env` resolves `zsh` through `PATH`, so it must find the packaged zsh fork before the system zsh. 5. Commands inside that nested script are intercepted by the zsh fork and can still request escalation from Codex. If `PATH` resolves `zsh` to the system shell instead, the nested script loses zsh-fork exec interception. Commands that should request escalation can then run only in the original sandbox, or fail there, without Codex ever receiving the approval request. Shell snapshots make this slightly more subtle: a snapshot can restore an older `PATH` after the child shell starts. This PR treats the zsh fork `PATH` prepend as an explicit environment override so snapshot wrapping preserves it. ## What Changed - Added shared zsh-fork runtime helpers that prepend the configured zsh executable parent directory to `PATH` without duplicate entries. - Applied the zsh fork `PATH` prepend to both zsh-fork `shell_command` launches and unified-exec zsh-fork launches before sandbox command construction. - Kept the shell-command zsh-fork backend API narrow: it derives the configured zsh path from session services and rebuilds its sandbox environment from `req.env`, rather than accepting a second, competing environment map or a separately threaded bin dir. - Kept Unix-only zsh-fork `PATH` mutation out of Windows clippy-visible mutability. - Added coverage for duplicate `PATH` entries, for preserving the zsh fork prepend through shell snapshot wrapping, and for the nested `python3` -> `#!/usr/bin/env zsh` escalation flow. ## Testing - `just fmt` - `just fix -p codex-core` I left final test validation to CI after the latest review-comment cleanup. Before that cleanup, `just test -p codex-core zsh_fork` passed locally for the zsh-fork-focused tests.
bc10e5b390
·
2026-05-28 14:10:40 -07:00
6,928 Commits
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.