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Publish packages to PyPI workflow (agronholm/anyio)

The Publish packages to PyPI workflow from agronholm/anyio, explained and optimized by Latchkey.

F

CI health: F - at risk

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Source: agronholm/anyio.github/workflows/publish.ymlLicense MITView source

What it does

This is the Publish packages to PyPI workflow from the agronholm/anyio 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

workflow (.yml)
name: Publish packages to PyPI

on:
  push:
    tags:
      - "[0-9]+.[0-9]+.[0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+.post[0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+[a-b][0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+rc[0-9]+"

jobs:
  build:
    name: Build the source tarball and the wheel
    runs-on: ubuntu-latest
    environment: release
    steps:
      - uses: actions/checkout@v7
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: 3.x
      - name: Install dependencies
        run: pip install build
      - name: Create packages
        run: python -m build
      - name: Archive packages
        uses: actions/upload-artifact@v7
        with:
          name: dist
          path: dist

  publish:
    name: Publish build artifacts to the PyPI
    needs: build
    runs-on: ubuntu-latest
    environment: release
    permissions:
      id-token: write
    steps:
      - name: Retrieve packages
        uses: actions/download-artifact@v8
        with:
          name: dist
          path: dist
      - name: Upload packages
        uses: pypa/gh-action-pypi-publish@release/v1

  release:
    name: Create a GitHub release
    needs: build
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v7
      - id: changelog
        uses: agronholm/release-notes@v1
        with:
          path: docs/versionhistory.rst
      - uses: ncipollo/release-action@v1
        with:
          body: ${{ steps.changelog.outputs.changelog }}

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 packages to PyPI
 
on:
  push:
    tags:
      - "[0-9]+.[0-9]+.[0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+.post[0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+[a-b][0-9]+"
      - "[0-9]+.[0-9]+.[0-9]+rc[0-9]+"
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    name: Build the source tarball and the wheel
    runs-on: latchkey-small
    environment: release
    steps:
      - uses: actions/checkout@v7
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          cache: 'pip'
          python-version: 3.x
      - name: Install dependencies
        run: pip install build
      - name: Create packages
        run: python -m build
      - name: Archive packages
        uses: actions/upload-artifact@v7
        with:
          name: dist
          path: dist
 
  publish:
    timeout-minutes: 30
    name: Publish build artifacts to the PyPI
    needs: build
    runs-on: latchkey-small
    environment: release
    permissions:
      id-token: write
    steps:
      - name: Retrieve packages
        uses: actions/download-artifact@v8
        with:
          name: dist
          path: dist
      - name: Upload packages
        uses: pypa/gh-action-pypi-publish@release/v1
 
  release:
    timeout-minutes: 30
    name: Create a GitHub release
    needs: build
    runs-on: latchkey-small
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v7
      - id: changelog
        uses: agronholm/release-notes@v1
        with:
          path: docs/versionhistory.rst
      - uses: ncipollo/release-action@v1
        with:
          body: ${{ steps.changelog.outputs.changelog }}

What changed

3 third-party actions are referenced by a movable tag. Pin them 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:

This workflow runs 3 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout actions/setup-python actions/upload-artifact actions/download-artifact