- CONTRIBUTING.md main contributing guide
- PROCESS.md contributing process
- GitLab Development Kit (GDK) to install a development version
- Documentation styleguide Use this styleguide if you are contributing to documentation.
- Migration Style Guide for creating safe migrations
- Testing standards and style guidelines
- UI guide for building GitLab with existing css styles and elements
- SQL guidelines for SQL guidelines
- Code review guidelines for reviewing code and having code reviewed.
- Architecture of GitLab
- CI setup for testing GitLab
- Gotchas to avoid
- How to dump production data to staging
- Instrumentation
- Performance guidelines
- Rake tasks for development
- Shell commands in the GitLab codebase
- Sidekiq debugging
- What requires downtime?
- Licensing for ensuring license compliance