Label PRs workflow (xarray-contrib/xarray-spatial)

The Label PRs workflow from xarray-contrib/xarray-spatial, explained and optimized by Latchkey.

What it does

This is the Label PRs workflow from the xarray-contrib/xarray-spatial 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: Label PRs

on:
  pull_request_target:
    types: [opened, synchronize]

jobs:
  label:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: write
    steps:
      - uses: actions/labeler@v5

The same workflow, on Latchkey

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

name: Label PRs
 
on:
  pull_request_target:
    types: [opened, synchronize]
 
jobs:
  label:
    timeout-minutes: 30
    runs-on: latchkey-small
    permissions:
      contents: read
      pull-requests: write
    steps:
      - uses: actions/labeler@v5
 

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.

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