Checks workflow (ekzhu/datasketch)

The Checks workflow from ekzhu/datasketch, explained and optimized by Latchkey.

What it does

This is the Checks workflow from the ekzhu/datasketch 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: Checks

# Triggers the workflow on push or pull request events
on: [push, pull_request]

permissions:
  contents: read

jobs:
  ruff:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: astral-sh/ruff-action@v3

  pyright:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: astral-sh/setup-uv@v7
        with:
          activate-environment: true
          python-version: "3.10"
          enable-cache: true
      - name: Test Pyright
        run: |
          uvx pyright
      - name: Minimize uv cache
        run: uv cache prune --ci

  link-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - name: Link Checker
        uses: lycheeverse/lychee-action@v2
        with:
          args: --exclude ieee.org --accept '200,203,206,403,429' --verbose --no-progress './**/*.md' './**/*.html' './**/*.rst'
          fail: true

The same workflow, on Latchkey

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

name: Checks
 
# Triggers the workflow on push or pull request events
on: [push, pull_request]
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  ruff:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v7
      - uses: astral-sh/ruff-action@v3
 
  pyright:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v7
      - uses: astral-sh/setup-uv@v7
        with:
          activate-environment: true
          python-version: "3.10"
          enable-cache: true
      - name: Test Pyright
        run: |
          uvx pyright
      - name: Minimize uv cache
        run: uv cache prune --ci
 
  link-check:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v7
      - name: Link Checker
        uses: lycheeverse/lychee-action@v2
        with:
          args: --exclude ieee.org --accept '200,203,206,403,429' --verbose --no-progress './**/*.md' './**/*.html' './**/*.rst'
          fail: true
 

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.

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.

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