Advisories workflow (automerge/automerge)

The Advisories workflow from automerge/automerge, explained and optimized by Latchkey.

What it does

This is the Advisories workflow from the automerge/automerge 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: Advisories
on:
  schedule:
    - cron: '0 18 * * *'
jobs:
  cargo-deny:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        checks:
          - advisories
          - bans licenses sources
    steps:
      - uses: actions/checkout@v6
      - uses: EmbarkStudios/cargo-deny-action@v2
        with:
          manifest-path: './rust/Cargo.toml'
          command: check ${{ matrix.checks }}

The same workflow, on Latchkey

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

name: Advisories
on:
  schedule:
    - cron: '0 18 * * *'
jobs:
  cargo-deny:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        checks:
          - advisories
          - bans licenses sources
    steps:
      - uses: actions/checkout@v6
      - uses: EmbarkStudios/cargo-deny-action@v2
        with:
          manifest-path: './rust/Cargo.toml'
          command: check ${{ matrix.checks }}
 

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

Actions used in this workflow