Release Python package workflow (alvarobartt/hf-mem)

The Release Python package workflow from alvarobartt/hf-mem, explained and optimized by Latchkey.

What it does

This is the Release Python package workflow from the alvarobartt/hf-mem 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: Release Python package

on:
  push:
    tags:
      - "*"

jobs:
  release:
    runs-on: ubuntu-24.04
    if: github.ref_type == 'tag'

    environment: pypi

    permissions:
      # IMPORTANT: this permission is mandatory for Trusted Publishing
      id-token: write

    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Install the latest version of uv
        uses: astral-sh/setup-uv@v7
        with:
          version: "latest"

      - name: Set up Python with uv
        run: uv venv --python 3.11

      - name: Install dependencies
        run: |
          source .venv/bin/activate
          uv sync

      - name: Build package
        run: |
          source .venv/bin/activate
          uv build

      - name: Publish to PyPI
        run: |
          source .venv/bin/activate
          uv publish

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Release Python package
 
on:
  push:
    tags:
      - "*"
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  release:
    timeout-minutes: 30
    runs-on: latchkey-small
    if: github.ref_type == 'tag'
 
    environment: pypi
 
    permissions:
      # IMPORTANT: this permission is mandatory for Trusted Publishing
      id-token: write
 
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
 
      - name: Install the latest version of uv
        uses: astral-sh/setup-uv@v7
        with:
          version: "latest"
 
      - name: Set up Python with uv
        run: uv venv --python 3.11
 
      - name: Install dependencies
        run: |
          source .venv/bin/activate
          uv sync
 
      - name: Build package
        run: |
          source .venv/bin/activate
          uv build
 
      - name: Publish to PyPI
        run: |
          source .venv/bin/activate
          uv publish
 

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.
• Cancel superseded runs when a branch or PR gets a newer push.
• 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.

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