Lint PR workflow (vega/vega)

The Lint PR workflow from vega/vega, explained and optimized by Latchkey.

What it does

This is the Lint PR workflow from the vega/vega 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: 'Lint PR'

on:
  pull_request_target:
    types:
      - opened
      - edited
      - synchronize

permissions:
  pull-requests: read

jobs:
  main:
    name: Validate PR title
    runs-on: ubuntu-latest
    steps:
      - uses: amannn/action-semantic-pull-request@v6
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

The same workflow, on Latchkey

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

name: 'Lint PR'
 
on:
  pull_request_target:
    types:
      - opened
      - edited
      - synchronize
 
permissions:
  pull-requests: read
 
jobs:
  main:
    timeout-minutes: 30
    name: Validate PR title
    runs-on: latchkey-small
    steps:
      - uses: amannn/action-semantic-pull-request@v6
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 

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.
• 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