size-label workflow (software-mansion/protostar)

The size-label workflow from software-mansion/protostar, explained and optimized by Latchkey.

CI health: C - fair

Point runs-on at Latchkey and get run de-duplication, job timeouts, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

Grade your own workflow free or run it on Latchkey →

Source: software-mansion/protostar.github/workflows/assign_size_label.ymlLicense MITView source

What it does

This is the size-label workflow from the software-mansion/protostar 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

workflow (.yml)

name: size-label
on: pull_request
jobs:
  size-label:
    runs-on: ubuntu-20.04
    if: ${{ github.repository == 'software-mansion/protostar' && github.actor != 'dependabot[bot]' }}
    steps:
      - name: size-label
        uses: "pascalgn/size-label-action@v0.4.3"
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          IGNORED: "poetry.lock"
        with:
          sizes: >
            {
              "0": "XS",
              "10": "S",
              "100": "M",
              "400": "L",
              "700": "XL",
              "1000": "XXL"
            }

The same workflow, on Latchkey

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

name: size-label
on: pull_request
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  size-label:
    timeout-minutes: 30
    runs-on: latchkey-small
    if: ${{ github.repository == 'software-mansion/protostar' && github.actor != 'dependabot[bot]' }}
    steps:
      - name: size-label
        uses: "pascalgn/size-label-action@v0.4.3"
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          IGNORED: "poetry.lock"
        with:
          sizes: >
            {
              "0": "XS",
              "10": "S",
              "100": "M",
              "400": "L",
              "700": "XL",
              "1000": "XXL"
            }

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Cancel superseded runs when a branch or PR gets a newer push.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

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.