pre-commit check workflow (python-social-auth/social-core)

The pre-commit check workflow from python-social-auth/social-core, explained and optimized by Latchkey.

What it does

This is the pre-commit check workflow from the python-social-auth/social-core repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

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

The workflow

name: pre-commit check

on:
  push:
  pull_request:


permissions:
  contents: read

jobs:
  pre-commit:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      with:
        persist-credentials: false

    - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
      with:
        path: ~/.cache/prek
        key: ${{ runner.os }}-prek-${{ hashFiles('.pre-commit-config.yaml', 'requirements*.txt') }}

    - name: Setup Python
      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
      with:
        python-version: 3.x

    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2

    - run: uvx prek run --all-files
      env:
        RUFF_OUTPUT_FORMAT: github

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: pre-commit check
 
on:
  push:
  pull_request:
 
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  pre-commit:
    timeout-minutes: 30
    runs-on: latchkey-small
 
    steps:
    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      with:
        persist-credentials: false
 
    - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
      with:
        path: ~/.cache/prek
        key: ${{ runner.os }}-prek-${{ hashFiles('.pre-commit-config.yaml', 'requirements*.txt') }}
 
    - name: Setup Python
      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
      with:
        cache: 'pip'
        python-version: 3.x
 
    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
 
    - run: uvx prek run --all-files
      env:
        RUFF_OUTPUT_FORMAT: github
 

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.
• 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.

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