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## Rollout compression stack This stack splits #24941 into reviewable steps for local rollout compression. The design is intentionally staged: 1. Teach readers, listing, search, and lookup to understand compressed rollouts. 2. Make append and resume paths materialize compressed rollouts back to plain JSONL before writing. 3. Add a disabled-by-default worker that can compress cold archived rollouts behind `local_thread_store_compression`. The key invariant is that writers append to plain `.jsonl`. A `.jsonl.zst` file is a cold/read representation; if a write is needed, the compressed file is materialized back to plain JSONL first. Readers prefer plain `.jsonl` when both forms exist and can fall back to the compressed sibling during transitions. The worker is deliberately the last PR and remains behind an under-development feature flag. It currently scans only `archived_sessions`, not active `sessions`, because active sessions have the highest resume/append race risk. That means this stack does not yet compress most unarchived local history. ## Known race / follow-up The remaining unresolved design question is writer/compressor coordination. Even for archived rollouts, a resume or metadata update can append while the worker is replacing the plain file with `.jsonl.zst`; the current double-stat checks narrow but do not fully eliminate the window where a writer has opened the plain file before unlink. Do not treat the worker PR as production-ready until we either: - prevent append/resume paths from racing archived compression, or - introduce a shared representation/append lock or equivalent coordination. The first two PRs are useful independently: they make compressed rollouts readable and make append paths safely recover back to plain JSONL. The third PR isolates the worker behavior so that coordination issue is reviewable separately. ## Validation Focused local validation for the stack includes: - `just test -p codex-rollout` - `just test -p codex-thread-store` where thread-store paths were touched - `just test -p codex-features` for the feature flag slice - `just bazel-lock-check` after dependency graph changes - scoped `just fix -p ...` passes for changed crates CI is still the source of truth for the full platform matrix. ## This PR in the stack This is PR 3/3, based on #25088. It adds the under-development feature flag and starts the best-effort background worker when enabled. The worker currently compresses only cold archived rollouts, skips active sessions, verifies compressed output, preserves mtime and permissions, keeps a store-level lock heartbeat, and cleans stale temp files. Stack order: 1. #25087: read compressed local rollouts. 2. #25088: materialize compressed rollouts before append. 3. This PR: add the disabled local compression worker.
01cb97851b
·
2026-06-01 18:35:58 +02:00
7,007 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.