# Nightly Cron workflow (facebook/Ax)

> The Nightly Cron workflow from facebook/Ax, explained and optimized by Latchkey.

Source: https://latchkey.dev/workflows/facebook-ax-cron  
Upstream: [facebook/Ax](https://github.com/facebook/Ax/blob/main/.github/workflows/cron.yml) (.github/workflows/cron.yml), licence MIT

## What it does

This is the Nightly Cron workflow from the facebook/Ax repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

## The workflow

```yaml
name: Nightly Cron

on:
  schedule:
    # midnight EST
    - cron:  '0 5 * * *'
  # allow this to be scheduled manually in addition to cron
  workflow_dispatch:
  push:
    branches: [ main ]
    paths:
      - "tutorials/**"

jobs:

  tests-and-coverage-minimal:
    name: Tests with latest BoTorch & minimal dependencies
    uses: ./.github/workflows/reusable_test.yml
    with:
      pinned_botorch: false
      minimal_dependencies: true
    secrets: inherit

  tests-and-coverage-full:
    name: Tests with latest BoTorch & full dependencies
    uses: ./.github/workflows/reusable_test.yml
    with:
      pinned_botorch: false
      minimal_dependencies: false
    secrets: inherit

  publish-latest-website:
    name: Publish latest website
    uses: ./.github/workflows/publish_website.yml
    permissions:
      pages: write
      id-token: write
      contents: write
    with:
      run_tutorials: true
      pinned_botorch: false

  deploy-test-pypi:

    runs-on: ubuntu-latest
    permissions:
      id-token: write # This is required for PyPI OIDC authentication.
    env:
      # `uv pip ...` requires venv by default. This skips that requirement.
      UV_SYSTEM_PYTHON: 1
    steps:
    - uses: actions/checkout@v6
    - name: Fetch all history for all tags and branches
      run: git fetch --prune --unshallow
    - name: Install uv
      uses: astral-sh/setup-uv@v7
    - name: Set up Python
      uses: actions/setup-python@v6
      with:
        python-version: "3.14"
    - name: Install dependencies
      run: |
        # use latest BoTorch
        uv pip install git+https://github.com/cornellius-gp/linear_operator.git
        uv pip install git+https://github.com/cornellius-gp/gpytorch.git
        uv pip install git+https://github.com/pytorch/botorch.git
        uv pip install -e ".[dev,mysql,notebook]"
        uv pip install --upgrade build setuptools setuptools_scm wheel
    - name: Extract reduced version and save to env var
      # strip the commit hash from the version to enable upload to pypi
      # env var will persist for subsequent steps
      run: |
        no_local_version=$(python -m setuptools_scm | cut -d "+" -f 1)
        echo "SETUPTOOLS_SCM_PRETEND_VERSION=${no_local_version}" >> $GITHUB_ENV
    - name: Build wheel
      run: |
        python -m build --sdist --wheel
    - name: Deploy to Test PyPI
      uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e  # release/v1.13
      with:
        repository-url: https://test.pypi.org/legacy/
        skip-existing: true
        verbose: true
```

## FAQ

### What does the Nightly Cron workflow (facebook/Ax) workflow do?

This is the Nightly Cron workflow from the facebook/Ax repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

### What CI health grade does this workflow get?

This Python workflow grades F. Paste your own workflow into the Latchkey grader to see its grade and the exact fixes.

### How can I improve this Python workflow?

Add run de-duplication, caching, and job timeouts. Latchkey applies these automatically on managed runners when you point runs-on at Latchkey.

---

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