gitlab-org--gitlab-foss/doc/development/README.md

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GitLab development guides

Get started!

• Setup GitLab's development environment with GitLab Development Kit (GDK)
• GitLab contributing guide
• Architecture of GitLab
• Rake tasks for development

Processes

• GitLab core team & GitLab Inc. contribution process
• Generate a changelog entry with bin/changelog
• Code review guidelines for reviewing code and having code reviewed.
• Automatic CE->EE merge
• Guidelines for implementing Enterprise Edition features

UX and frontend guides

• UX guide for building GitLab with existing CSS styles and elements
• Frontend guidelines
• Emoji guide

Backend guides

• API styleguide Use this styleguide if you are contributing to the API.
• Sidekiq guidelines for working with Sidekiq workers
• Working with Gitaly
• Manage feature flags
• View sent emails or preview mailers
• Shell commands in the GitLab codebase
• Gemfile guidelines
• Sidekiq debugging
• Gotchas to avoid
• Avoid modules with instance variables if possible
• Issue and merge requests state models
• How to dump production data to staging
• Working with the GitHub importer

Performance guides

• Instrumentation
• Performance guidelines
• Merge request performance guidelines for ensuring merge requests do not negatively impact GitLab performance

Databases guides

Migrations

• What requires downtime?
• SQL guidelines for working with SQL queries
• Migrations style guide for creating safe SQL migrations
• Post deployment migrations
• Background migrations
• Swapping tables

Best practices

• Merge Request checklist
• Adding database indexes
• Foreign keys & associations
• Single table inheritance
• Polymorphic associations
• Serializing data
• Hash indexes
• Storing SHA1 hashes as binary
• Iterating tables in batches
• Ordering table columns
• Verifying database capabilities
• Database Debugging and Troubleshooting

Testing guides

• Testing standards and style guidelines
• Frontend testing standards and style guidelines

Documentation guides

• Writing documentation
• Documentation styleguide
• Markdown

Internationalization (i18n) guides

• Introduction
• Externalization
• Translation

Build guides

• Building a package for testing purposes

Compliance

• Licensing for ensuring license compliance