acciones-github

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• SKILL.md

SKILL.md (first lines)

## Cuando usar

Usa esta skill para pipelines GitHub Actions, matrix builds, cache, secretos y actions a medida.
Cubre workflows reutilizables, environments, concurrency y artefactos.
Para Docker/K8s y estrategias de rollback/deploy usa `experto-docker` y `patrones-despliegue`.
No uses esta skill para CI de otro proveedor (GitLab, Jenkins).

## Workflow Structure

```yaml
name: CI
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  validate:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
        with: { version: 10 }
      - uses: actions/setup-node@v4
        with: { node-version: 22, cache: pnpm }
      - run: pnpm install --frozen-lockfile
      - run: pnpm lint
      - run: pnpm typecheck
      - run: pnpm test
      - run: pnpm build
```

## Caching

### Node Modules

```yaml
- uses: actions/setup-node@v4
  with:
    node-version: 22
    cache: pnpm  # or npm, yarn
```

### Docker Layers

```yaml
- uses: docker/build-push-action@v6
  with:
    push: true
    tags: app:latest
    cache-from: type=gha
    cache-to: type=gha,mode=max
```

### Custom Cache

```yaml
- uses: actions/cache@v4
  with:
    path: |
      ~/.cache/pip
      ~/.local/share/virtualenvs
    key: pip-${{ runner.os }}-${{ hashFiles('requirements.txt') }}
    restore-keys: pip-${{ runner.os }}-
```

## Matrix Builds

```yaml
jobs:
  test:
    strategy:
      fail-fast: false
      matrix:
        node: [20, 22]
        os: [ubuntu-latest, macos-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/setup-node@v4
        with: { node-version: ${{ matrix.node }} }
      - run: pnpm test
```

## Reusable Workflows

### Caller

```yaml
jobs:
  deploy:
    uses: org/reusable-workflows/.github/workflows/deploy.yml@v1
    with:
      environment: production
    secrets: inherit
```

### Reusable Workflow

```yaml
on:
  workflow_call:
    inputs:
      environment:
        required: true
        type: string
    secrets:
      DEPLOY_KEY:
        required: true

jobs:
  deploy:
    runs-on: ubuntu-latest
    environment: ${{ inputs.environment }}
    steps:
      - run: echo "Deploying to ${{ inputs.environment }}"
```

From tontojil/PerfeckCode, MIT.

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