publish workflow (ur-whitelab/chemcrow-public)

The publish workflow from ur-whitelab/chemcrow-public, explained and optimized by Latchkey.

What it does

This is the publish workflow from the ur-whitelab/chemcrow-public 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

name: publish

on:
  release:
    types:
      - created
  workflow_dispatch:

jobs:
  publish:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python "3.9"
      uses: actions/setup-python@v2
      with:
        python-version: "3.9"
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8 pytest build
        if [ -f dev-requirements.txt ]; then pip install -r dev-requirements.txt; fi
    - name: Install
      run: |
        pip install .
      env:
        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
    - name: Build a binary wheel and a source tarball
      run: |
        python -m build --sdist --wheel --outdir dist/ .
    - name: Publish distribution 📦 to PyPI
      uses: pypa/gh-action-pypi-publish@release/v1
      with:
        password: ${{ secrets.PYPI_API_TOKEN }}

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: publish
 
on:
  release:
    types:
      - created
  workflow_dispatch:
 
jobs:
  publish:
    timeout-minutes: 30
 
    runs-on: latchkey-small
 
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python "3.9"
      uses: actions/setup-python@v2
      with:
        cache: 'pip'
        python-version: "3.9"
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8 pytest build
        if [ -f dev-requirements.txt ]; then pip install -r dev-requirements.txt; fi
    - name: Install
      run: |
        pip install .
      env:
        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
    - name: Build a binary wheel and a source tarball
      run: |
        python -m build --sdist --wheel --outdir dist/ .
    - name: Publish distribution 📦 to PyPI
      uses: pypa/gh-action-pypi-publish@release/v1
      with:
        password: ${{ secrets.PYPI_API_TOKEN }}
 

What changed

• Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
• Cache dependency installs on the setup step so they are served from cache.
• Add a job timeout so a hung step cannot burn hours of runner time.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

• Dependency installs

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow