Tests: eslint 8+ workflow (import-js/eslint-plugin-import)
The Tests: eslint 8+ workflow from import-js/eslint-plugin-import, explained and optimized by Latchkey.
CI health: B - good
Point runs-on at Latchkey and get job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the Tests: eslint 8+ workflow from the import-js/eslint-plugin-import 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: 'Tests: eslint 8+'
on: [pull_request, push]
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: ${{ github.event_name == 'pull_request' }}
permissions:
contents: read
jobs:
matrix:
runs-on: ubuntu-latest
outputs:
latest: ${{ steps.set-matrix.outputs.requireds }}
minors: ${{ steps.set-matrix.outputs.optionals }}
steps:
- uses: ljharb/actions/node/matrix@main
id: set-matrix
with:
versionsAsRoot: true
type: majors
preset: '^12.22.0 || ^14.17.0 || >=16.0.0' # eslint 8 engines.node
latest:
needs: [matrix]
name: majors
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os:
- ubuntu-latest
- macos-latest
node-version: ${{ fromJson(needs.matrix.outputs.latest) }}
eslint:
- 10
- 9
- 8
exclude:
- node-version: 17
eslint: 10
- node-version: 16
eslint: 10
- node-version: 14
eslint: 10
- node-version: 12
eslint: 10
- node-version: 16
eslint: 9
- node-version: 14
eslint: 9
- node-version: 12
eslint: 9
steps:
- uses: actions/checkout@v4
- uses: ljharb/actions/node/install@main
name: 'nvm install ${{ matrix.node-version }} && npm install, with eslint ${{ matrix.eslint }}'
env:
ESLINT_VERSION: ${{ matrix.eslint }}
TRAVIS_NODE_VERSION: ${{ matrix.node-version }}
with:
node-version: ${{ matrix.node-version }}
after_install: npm run copy-metafiles && ./tests/dep-time-travel.sh
skip-ls-check: true
- run: npm run pretest
- run: npm run tests-only
- uses: codecov/codecov-action@v7.0.0
node:
name: 'eslint 8+'
needs: [latest]
runs-on: ubuntu-latest
steps:
- run: true
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: 'Tests: eslint 8+' on: [pull_request, push] concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: ${{ github.event_name == 'pull_request' }} permissions: contents: read jobs: matrix: timeout-minutes: 30 runs-on: latchkey-small outputs: latest: ${{ steps.set-matrix.outputs.requireds }} minors: ${{ steps.set-matrix.outputs.optionals }} steps: - uses: ljharb/actions/node/matrix@main id: set-matrix with: versionsAsRoot: true type: majors preset: '^12.22.0 || ^14.17.0 || >=16.0.0' # eslint 8 engines.node latest: timeout-minutes: 30 needs: [matrix] name: majors runs-on: ${{ matrix.os }} strategy: fail-fast: false matrix: os: - ubuntu-latest - macos-latest node-version: ${{ fromJson(needs.matrix.outputs.latest) }} eslint: - 10 - 9 - 8 exclude: - node-version: 17 eslint: 10 - node-version: 16 eslint: 10 - node-version: 14 eslint: 10 - node-version: 12 eslint: 10 - node-version: 16 eslint: 9 - node-version: 14 eslint: 9 - node-version: 12 eslint: 9 steps: - uses: actions/checkout@v4 - uses: ljharb/actions/node/install@main name: 'nvm install ${{ matrix.node-version }} && npm install, with eslint ${{ matrix.eslint }}' env: ESLINT_VERSION: ${{ matrix.eslint }} TRAVIS_NODE_VERSION: ${{ matrix.node-version }} with: node-version: ${{ matrix.node-version }} after_install: npm run copy-metafiles && ./tests/dep-time-travel.sh skip-ls-check: true - run: npm run pretest - run: npm run tests-only - uses: codecov/codecov-action@v7.0.0 node: timeout-minutes: 30 name: 'eslint 8+' needs: [latest] runs-on: latchkey-small steps: - run: true
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 useslatchkey-small; pick the runner size that fits the job. - Add a job timeout so a hung step cannot burn hours of runner time.
2 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.
What Latchkey heals here
This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:
- Dependency installs
This workflow runs 3 jobs (8 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.