CI workflow (mscdex/ssh2)

The CI workflow from mscdex/ssh2, explained and optimized by Latchkey.

CI health: D - needs work

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Source: mscdex/ssh2.github/workflows/ci.ymlLicense MITView source

What it does

This is the CI workflow from the mscdex/ssh2 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: CI

on:
  pull_request:
  push:
    branches: [ master ]

env:
  CI_CHECK_FAIL: ssh2
  OPENSSL_CONF: /dev/null

jobs:
  tests-linux:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          node-version: ${{ matrix.node-version }}
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-macos:
    runs-on: macos-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          node-version: ${{ matrix.node-version }}
      - name: Install Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-macos-homebrew:
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js (latest)
        run: brew install node
      - name: Install Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-windows:
    runs-on: windows-2022
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          node-version: ${{ matrix.node-version }}
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install setuptools (for distutils compat)
        run: pip install setuptools
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: CI
 
on:
  pull_request:
  push:
    branches: [ master ]
 
env:
  CI_CHECK_FAIL: ssh2
  OPENSSL_CONF: /dev/null
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  tests-linux:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          cache: 'npm'
          node-version: ${{ matrix.node-version }}
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-macos:
    timeout-minutes: 30
    runs-on: macos-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          cache: 'npm'
          node-version: ${{ matrix.node-version }}
      - name: Install Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-macos-homebrew:
    timeout-minutes: 30
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js (latest)
        run: brew install node
      - name: Install Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test
  tests-windows:
    timeout-minutes: 30
    runs-on: windows-2022
    strategy:
      fail-fast: false
      matrix:
        node-version: [16.x, 18.x, 20.x, 22.x, 24.x, 26.x]
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          cache: 'npm'
          node-version: ${{ matrix.node-version }}
      - name: Check Node.js version
        run: node -pe process.versions
      - name: Check npm version
        run: npm -v
      - name: Install setuptools (for distutils compat)
        run: pip install setuptools
      - name: Install module
        run: npm install
      - name: Run tests
        run: npm test

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.
Cache dependency installs on the setup step so they are served from cache.
Add a job timeout so a hung step cannot burn hours of runner time.

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 4 jobs (20 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

actions/checkout actions/setup-node actions/setup-python