CI workflow (Palaiologos1453/OpenInterview)

The CI workflow from Palaiologos1453/OpenInterview, explained and optimized by Latchkey.

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Source: Palaiologos1453/OpenInterview.github/workflows/ci.ymlLicense MITView source

What it does

This is the CI workflow from the Palaiologos1453/OpenInterview 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:
  push:
  pull_request:

jobs:
  test:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - uses: actions/setup-node@v4
        with:
          node-version: "22"

      - name: Cache pip
        uses: actions/cache@v4
        with:
          path: ~\AppData\Local\pip\Cache
          key: ${{ runner.os }}-pip-${{ hashFiles('apps/api/pyproject.toml') }}
          restore-keys: |
            ${{ runner.os }}-pip-

      - name: Install API
        working-directory: apps/api
        run: pip install -e ".[dev]"

      - name: Lint API
        run: python -m ruff check apps/api/openinterview_api apps/api/tests

      - name: Run API tests
        run: |
          $env:PYTHONPATH = "$PWD\apps\api"
          python -m unittest apps.api.tests.test_engine apps.api.tests.test_api

      - name: Run scoring evaluation
        run: python scripts/evaluate_scoring.py --output apps/api/eval/scoring-report.md --json-output apps/api/eval/scoring-report.json

      - name: Check frontend syntax
        run: node --check apps/web/app.js

      - name: Check PowerShell scripts
        shell: pwsh
        run: |
          $scripts = @(
            "scripts/start-local.ps1",
            "scripts/start-api.ps1",
            "scripts/start-web.ps1",
            "scripts/start-api-production.ps1"
          )
          foreach ($script in $scripts) {
            $tokens = $null
            $errors = $null
            [System.Management.Automation.Language.Parser]::ParseFile((Resolve-Path $script), [ref]$tokens, [ref]$errors) | Out-Null
            if ($errors.Count) {
              $errors | ForEach-Object { Write-Error ("{0}: {1}" -f $script, $_.Message) }
              exit 1
            }
          }

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:
  push:
  pull_request:
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test:
    timeout-minutes: 30
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4
 
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
 
      - uses: actions/setup-node@v4
        with:
          cache: 'npm'
          node-version: "22"
 
      - name: Cache pip
        uses: actions/cache@v4
        with:
          path: ~\AppData\Local\pip\Cache
          key: ${{ runner.os }}-pip-${{ hashFiles('apps/api/pyproject.toml') }}
          restore-keys: |
            ${{ runner.os }}-pip-
 
      - name: Install API
        working-directory: apps/api
        run: pip install -e ".[dev]"
 
      - name: Lint API
        run: python -m ruff check apps/api/openinterview_api apps/api/tests
 
      - name: Run API tests
        run: |
          $env:PYTHONPATH = "$PWD\apps\api"
          python -m unittest apps.api.tests.test_engine apps.api.tests.test_api
 
      - name: Run scoring evaluation
        run: python scripts/evaluate_scoring.py --output apps/api/eval/scoring-report.md --json-output apps/api/eval/scoring-report.json
 
      - name: Check frontend syntax
        run: node --check apps/web/app.js
 
      - name: Check PowerShell scripts
        shell: pwsh
        run: |
          $scripts = @(
            "scripts/start-local.ps1",
            "scripts/start-api.ps1",
            "scripts/start-web.ps1",
            "scripts/start-api-production.ps1"
          )
          foreach ($script in $scripts) {
            $tokens = $null
            $errors = $null
            [System.Management.Automation.Language.Parser]::ParseFile((Resolve-Path $script), [ref]$tokens, [ref]$errors) | Out-Null
            if ($errors.Count) {
              $errors | ForEach-Object { Write-Error ("{0}: {1}" -f $script, $_.Message) }
              exit 1
            }
          }

What changed

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 1 job 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-python actions/setup-node actions/cache