Continuous integration (CI) is a development practice that requires developers to integrate code into a shared repository multiple times per day. Each check-in is automatically built and tested to find problems early. For Ruby on Rails projects, CI can generate code coverage reports, perform static code analysis, and document APIs. CI builds confidence by continuously integrating and testing code changes. Continuous deployment further automates software delivery through continuous integration.

1. Continuous Integration
for Ruby on Rails
David Paluy
Jul 2015

2. Real testing is hard
Let computers do the simple testing
Smart humans for smart testing

3. Agenda
● CI overview for Rails
● Artifacts
● Integration
● From CI to Continuous Deployment

4. Continuous Integration (CI)
CI - is a Development practice that requires
developers to integrate code into a shared
repository several times a day. Each check-in is
then verified by an automated build, allowing
teams to detect problems early.

5. CI for Rails

6. Artifacts
● Code Coverage
● Static Code analysis
● Documentation

7. Code Coverage - SimpleCov

8. Static Code Analysis
CodeClimate - Analysis SaaS
Self hosted - https://github.
com/codeclimate/codeclimate

9. Documentation
Rails ERD
http://rails-erd.rubyforge.org/
Generate API doc https://github.
com/Apipie/apipie-rails

10. Integration with Github

11. Integration

12. Continuous Integration builds
CONFIDENCE

13. Continuous Deployment
Continuous Deployment is part of the
continuous delivery ‘movement’.
The idea behind continuous delivery is to
automate the software delivery process as far
as possible.

14. Continuous Deployment
● Fast Feedback
● Confidence
● Predictability - Running the same script
Continuous Integration