AgentSkillsCN

GitHub Actions

GitHub Actions

SKILL.md

GitHub Actions

Description

GitHub Actions CI/CD workflows including testing, building, and deployment.

When to Use

  • •Setting up CI/CD pipelines
  • •Automating tests and builds
  • •Deployment automation

Core Patterns

Basic CI Workflow

yaml
name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
      - run: npm ci
      - run: npm test

Matrix Builds

yaml
jobs:
  test:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
        node: [18, 20]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}

Caching

yaml
- uses: actions/cache@v4
  with:
    path: ~/.npm
    key: npm-${{ hashFiles('**/package-lock.json') }}
    restore-keys: npm-

Secrets

yaml
- name: Deploy
  env:
    API_KEY: ${{ secrets.API_KEY }}
  run: deploy --key "$API_KEY"

Best Practices

  1. •Use caching for dependencies
  2. •Run jobs in parallel when possible
  3. •Use environment secrets
  4. •Pin action versions
  5. •Add proper triggers

Common Pitfalls

  • •Slow pipelines: Add caching
  • •Secret exposure: Never echo secrets
  • •Unpinned versions: Use @v4 not @main