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Describe how to set up Slim Framework in a continuous integration pipeline.

Describe how to set up Slim Framework in a continuous integration pipeline.

Setting up Slim Framework in a Continuous Integration (CI) pipeline involves automating the process of testing, building, and deploying your Slim application. Here’s how to do it in minimal steps using a popular CI tool like GitHub Actions, GitLab CI, or CircleCI:

1. Set Up Version Control

Ensure your project is in a Git repository (GitHub, GitLab, Bitbucket, etc.). This is a prerequisite for CI integration.

2. Install CI Tool

Choose a CI tool like GitHub Actions, GitLab CI, or CircleCI. Here’s an example using GitHub Actions.

2.1 GitHub Actions Setup

  1. In your GitHub repo, create a .github/workflows directory.
  2. Create a YAML file (e.g., ci.yml) in this folder to define the CI pipeline.

3. Define the CI Workflow

Create a .yml file to automate the steps. Here’s an example for a Slim Framework app:

Example

name: Slim Framework CI Pipeline

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      # Checkout the repository
      - name: Checkout code
        uses: actions/checkout@v2

      # Set up PHP environment
      - name: Set up PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '7.4'
          extensions: mbstring, bcmath, ctype

      # Install dependencies
      - name: Install dependencies
        run: |
          composer install

      # Run tests (adjust if using PHPUnit, Codeception, etc.)
      - name: Run PHPUnit Tests
        run: |
          ./vendor/bin/phpunit

      # Cache dependencies (optional, for faster builds)
      - name: Cache Composer dependencies
        uses: actions/cache@v2
        with:
          path: ~/.composer/cache
          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
          restore-keys: |
            ${{ runner.os }}-composer-

4. Set Up Environment Variables

If your Slim app needs environment variables (e.g., for database connections), you can set them in the CI tool:

For GitHub Actions:

  • Go to the repository settings.
  • Under Secrets, add the necessary environment variables (e.g., DB_HOST, DB_USER, DB_PASS).

5. Run Tests

Ensure you have PHPUnit (or another test framework) configured in your Slim project. Here’s a basic phpunit.xml:

Example

<phpunit bootstrap="vendor/autoload.php">
    <testsuites>
        <testsuite name="Application Test Suite">
            <directory>tests</directory>
        </testsuite>
    </testsuites>
</phpunit>

Make sure your tests are located in the tests/ folder.

6. Push to GitHub

Every time you push code to the main branch, GitHub Actions will trigger the pipeline, install dependencies, run tests, and provide feedback.

7. Additional CI Features (Optional)

  • Code Coverage: You can integrate a code coverage tool like Codecov or Coveralls.
  • Deployment: If you want to deploy after successful tests, you can extend the pipeline with steps to deploy to a server or cloud platform (e.g., Heroku, AWS).

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