Continuous Integration (CI) is a development practice where developers integrate code into a shared repository several times a day. Each integration can then be verified by an automated build and automated tests. This practice enables rapid, reliable, and high-quality software releases.

Key Benefits of CI

  • Frequent Integration: Reduces the risk of integration problems.
  • Quick Feedback: Developers get immediate feedback on their code changes.
  • Reliability: Ensures that the software works as expected at all times.
  • Quality Assurance: Automated tests catch bugs early in the development process.

CI Workflow

  1. Code Commit: Developers commit their code changes to the shared repository.
  2. Automated Build: The CI tool automatically builds the code.
  3. Automated Tests: The CI tool runs automated tests to verify the code.
  4. Feedback: If tests pass, the changes are merged into the main branch. If tests fail, developers are notified.

Tools for CI

  • Jenkins: An open-source CI tool that is widely used.
  • Travis CI: A cloud-based CI tool that supports GitHub.
  • GitLab CI/CD: An integrated CI/CD solution for GitLab.

Best Practices

  • Automate Everything: Automate as much of the CI process as possible.
  • Small Changes: Commit small changes frequently.
  • Test Early and Often: Run tests as soon as possible after changes are made.
  • Document the Process: Keep track of the CI process and document it for future reference.

Continuous Integration

For more information on Continuous Integration, check out our guide on CI Best Practices.