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## Why The large Rust test suites are slow and include some of our flakiest tests, so we want to run them with Bazel native sharding while keeping shard membership stable between runs. This is the simpler follow-up to the explicit-label experiment in #17998. Since #18397 upgraded Codex to `rules_rs` `0.0.58`, which includes the stable test-name hashing support from hermeticbuild/rules_rust#14, this PR only needs to wire Codex's Bazel macros into that support. Using native sharding preserves BuildBuddy's sharded-test UI and Bazel's per-shard test action caching. Using stable name hashing avoids reshuffling every test when one test is added or removed. ## What Changed `codex_rust_crate` now accepts `test_shard_counts` and applies the right Bazel/rules_rust attributes to generated unit and integration test rules. Matched tests are also marked `flaky = True`, giving them Bazel's default three attempts. This PR shards these labels 8 ways: ```text //codex-rs/core:core-all-test //codex-rs/core:core-unit-tests //codex-rs/app-server:app-server-all-test //codex-rs/app-server:app-server-unit-tests //codex-rs/tui:tui-unit-tests ``` ## Verification `bazel query --output=build` over the selected public labels and their inner unit-test binaries confirmed the expected `shard_count = 8`, `flaky = True`, and `experimental_enable_sharding = True` attributes. Also verified that we see the shards as expected in BuildBuddy so they can be analyzed independently. Co-authored-by: Codex <noreply@openai.com>
npm i -g @openai/codex
or brew install --cask codex
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
Install globally with your preferred package manager:
# 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.