Minimal Labels workflow (argoproj-labs/hera)

The Minimal Labels workflow from argoproj-labs/hera, explained and optimized by Latchkey.

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Source: argoproj-labs/hera.github/workflows/minimal-labels.ymlLicense Apache-2.0View source

What it does

This is the Minimal Labels workflow from the argoproj-labs/hera repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Minimal Labels
on:
  pull_request:
    types:
      - synchronize
      - reopened
      - labeled
      - unlabeled
  merge_group:
jobs:
  semver:
    name: Minimal Semver Labels
    runs-on:
      - ubuntu-latest
    steps:
      - uses: mheap/github-action-required-labels@v5
        with:
          count: 1
          labels: semver:major, semver:minor, semver:patch, type:skip-changelog
          mode: exactly
  type:
    name: Minimal Type Labels
    runs-on:
      - ubuntu-latest
    steps:
      - uses: mheap/github-action-required-labels@v5
        with:
          count: 1
          labels: type:bug, type:dependency-upgrade, type:documentation, type:enhancement, type:question, type:task, type:informational, type:skip-changelog
          mode: exactly

The same workflow, on Latchkey

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

name: Minimal Labels
on:
  pull_request:
    types:
      - synchronize
      - reopened
      - labeled
      - unlabeled
  merge_group:
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  semver:
    timeout-minutes: 30
    name: Minimal Semver Labels
    runs-on:
      - ubuntu-latest
    steps:
      - uses: mheap/github-action-required-labels@v5
        with:
          count: 1
          labels: semver:major, semver:minor, semver:patch, type:skip-changelog
          mode: exactly
  type:
    timeout-minutes: 30
    name: Minimal Type Labels
    runs-on:
      - ubuntu-latest
    steps:
      - uses: mheap/github-action-required-labels@v5
        with:
          count: 1
          labels: type:bug, type:dependency-upgrade, type:documentation, type:enhancement, type:question, type:task, type:informational, type:skip-changelog
          mode: exactly

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Cancel superseded runs when a branch or PR gets a newer push.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

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 2 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.