Felipe Coury 9f42c89c01 feat(doctor): add environment diagnostics (#24261)
## Why

Issue #23031 was hard to diagnose from existing `codex doctor` output
because support could not see the OS language, resolved Git install, Git
repo metadata, Windows console mode/code page, or terminal-title inputs
that affect the TUI startup path. This adds those read-only signals to
`codex doctor` so Windows, Linux, and macOS reports carry the context
needed to investigate similar terminal rendering regressions.

Refs #23031

## What Changed

- Add a `system.environment` check for OS type/version, OS language, and
locale env vars.
- Add a `git.environment` check for the selected Git executable, PATH
Git candidates, version, exec path/build options, repository root,
branch, `.git` entry, and `core.fsmonitor`.
- Add Windows console code page and VT-processing mode details to
terminal diagnostics.
- Add a `terminal.title` check for configured/default title items and
resolved project-title source/value.
- Surface startup warning counts in config diagnostics and teach human
output to render the new categories.

## How to Test

1. On Windows, check out this branch and run `cargo run -p codex-cli --
doctor --summary`.
2. Confirm the Environment section includes `system`, `git`, `terminal`,
and `title` rows.
3. Run `cargo run -p codex-cli -- doctor --json`.
4. Confirm the JSON contains `system.environment`, `git.environment`,
and `terminal.title`; on Windows, confirm `terminal.env` details include
console code pages and `VT processing` for stdout/stderr.
5. From a non-git directory, run the same `doctor --json` command and
confirm the Git check reports `repo detected: false` rather than
warning.

Targeted tests:

- `cargo test -p codex-cli doctor`
- `cargo test -p codex-cli`
9f42c89c01 · 2026-05-24 15:34:35 +00:00
6,800 Commits
2026-05-18 21:33:05 -07:00
2026-05-18 21:33:05 -07:00
2026-04-24 17:49:29 -07:00
2025-04-16 12:56:08 -04:00
2025-04-16 12:56:08 -04:00
2026-04-24 17:49:29 -07:00

Codex CLI is a coding agent from OpenAI that runs locally on your computer.

Codex CLI splash


If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
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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:

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    • x86_64 (older Mac hardware): codex-x86_64-apple-darwin.tar.gz
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    • arm64: codex-aarch64-unknown-linux-musl.tar.gz

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.

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Docs

This repository is licensed under the Apache-2.0 License.

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