Actionlint workflow (napari/napari)

The Actionlint workflow from napari/napari, explained and optimized by Latchkey.

What it does

This is the Actionlint workflow from the napari/napari 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: Actionlint
# https://github.com/rhysd/actionlint

on:
  pull_request:
    paths:
      - '.github/**'

jobs:
  actionlint:
    name: Action lint
    runs-on: ubuntu-slim
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
      - name: Check workflow files
        run: |
          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
          ./actionlint -color -ignore SC2129
        shell: bash

The same workflow, on Latchkey

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

name: Actionlint
# https://github.com/rhysd/actionlint
 
on:
  pull_request:
    paths:
      - '.github/**'
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  actionlint:
    timeout-minutes: 30
    name: Action lint
    runs-on: ubuntu-slim
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
      - name: Check workflow files
        run: |
          bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
          ./actionlint -color -ignore SC2129
        shell: bash
 

What changed

• Cancel superseded runs when a branch or PR gets a newer push.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

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