162 lines
6.4 KiB
Markdown
162 lines
6.4 KiB
Markdown
---
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comments: false
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description: 'Learn how to contribute to GitLab.'
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---
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# Contributor and Development Docs
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## Get started
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- Set up GitLab's development environment with [GitLab Development Kit (GDK)](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/README.md)
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- [GitLab contributing guide](contributing/index.md)
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- [Architecture](architecture.md) of GitLab
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- [Rake tasks](rake_tasks.md) for development
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## Processes
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- [GitLab core team & GitLab Inc. contribution process](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/PROCESS.md)
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- [Generate a changelog entry with `bin/changelog`](changelog.md)
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- [Code review guidelines](code_review.md) for reviewing code and having code reviewed
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- [Database review guidelines](database_review.md) for reviewing database-related changes and complex SQL queries
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- [Automatic CE->EE merge](automatic_ce_ee_merge.md)
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- [Guidelines for implementing Enterprise Edition features](ee_features.md)
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- [Security process for developers](https://gitlab.com/gitlab-org/release/docs/blob/master/general/security/developer.md#security-releases-critical-non-critical-as-a-developer)
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- [Requesting access to Chatops on GitLab.com](chatops_on_gitlabcom.md#requesting-access) (for GitLabbers)
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## UX and Frontend guides
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- [GitLab Design System](https://design.gitlab.com/) for building GitLab with existing CSS styles and elements
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- [Frontend guidelines](fe_guide/index.md)
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- [Emoji guide](fe_guide/emojis.md)
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## Backend guides
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- [GitLab utilities](utilities.md)
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- [Logging](logging.md)
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- [API styleguide](api_styleguide.md) Use this styleguide if you are
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contributing to the API
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- [GraphQL API styleguide](api_graphql_styleguide.md) Use this
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styleguide if you are contributing to the [GraphQL API](../api/graphql/index.md)
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- [Sidekiq guidelines](sidekiq_style_guide.md) for working with Sidekiq workers
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- [Working with Gitaly](gitaly.md)
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- [Manage feature flags](feature_flags.md)
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- [Licensed feature availability](licensed_feature_availability.md)
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- [View sent emails or preview mailers](emails.md)
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- [Shell commands](shell_commands.md) in the GitLab codebase
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- [`Gemfile` guidelines](gemfile.md)
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- [Pry debugging](pry_debugging.md)
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- [Sidekiq debugging](sidekiq_debugging.md)
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- [Accessing session data](session.md)
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- [Gotchas](gotchas.md) to avoid
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- [Avoid modules with instance variables](module_with_instance_variables.md) if possible
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- [How to dump production data to staging](db_dump.md)
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- [Working with the GitHub importer](github_importer.md)
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- [Import/Export development documentation](import_export.md)
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- [Elasticsearch integration docs](elasticsearch.md)
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- [Working with Merge Request diffs](diffs.md)
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- [Kubernetes integration guidelines](kubernetes.md)
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- [Permissions](permissions.md)
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- [Prometheus metrics](prometheus_metrics.md)
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- [Guidelines for reusing abstractions](reusing_abstractions.md)
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- [DeclarativePolicy framework](policies.md)
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- [How Git object deduplication works in GitLab](git_object_deduplication.md)
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- [Geo development](geo.md)
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- [Routing](routing.md)
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- [Repository mirroring](repository_mirroring.md)
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- [Git LFS](lfs.md)
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- [Developing against interacting components or features](interacting_components.md)
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- [File uploads](uploads.md)
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## Performance guides
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- [Instrumentation](instrumentation.md) for Ruby code running in production
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environments
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- [Performance guidelines](performance.md) for writing code, benchmarks, and
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certain patterns to avoid
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- [Merge request performance guidelines](merge_request_performance_guidelines.md)
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for ensuring merge requests do not negatively impact GitLab performance
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- [Profiling](profiling.md) a URL, measuring performance using Sherlock, or
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tracking down N+1 queries using Bullet
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## Database guides
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### Tooling
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- [Understanding EXPLAIN plans](understanding_explain_plans.md)
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- [explain.depesz.com](https://explain.depesz.com/) for visualising the output
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of `EXPLAIN`
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- [pgFormatter](http://sqlformat.darold.net/) a PostgreSQL SQL syntax beautifier
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### Migrations
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- [What requires downtime?](what_requires_downtime.md)
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- [SQL guidelines](sql.md) for working with SQL queries
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- [Migrations style guide](migration_style_guide.md) for creating safe SQL migrations
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- [Post deployment migrations](post_deployment_migrations.md)
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- [Background migrations](background_migrations.md)
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- [Swapping tables](swapping_tables.md)
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### Best practices
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- [Merge Request checklist](database_merge_request_checklist.md)
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- [Adding database indexes](adding_database_indexes.md)
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- [Foreign keys & associations](foreign_keys.md)
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- [Single table inheritance](single_table_inheritance.md)
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- [Polymorphic associations](polymorphic_associations.md)
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- [Serializing data](serializing_data.md)
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- [Hash indexes](hash_indexes.md)
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- [Storing SHA1 hashes as binary](sha1_as_binary.md)
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- [Iterating tables in batches](iterating_tables_in_batches.md)
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- [Ordering table columns](ordering_table_columns.md)
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- [Verifying database capabilities](verifying_database_capabilities.md)
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- [Database Debugging and Troubleshooting](database_debugging.md)
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- [Query Count Limits](query_count_limits.md)
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- [Database helper modules](database_helpers.md)
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- [Code comments](code_comments.md)
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## Case studies
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- [Database case study: Filtering by label](filtering_by_label.md)
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- [Database case study: Namespaces storage statistics](namespaces_storage_statistics.md)
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## Integration guides
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- [Jira Connect app](integrations/jira_connect.md)
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## Testing guides
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- [Testing standards and style guidelines](testing_guide/index.md)
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- [Frontend testing standards and style guidelines](testing_guide/frontend_testing.md)
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## Documentation guides
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- [Writing documentation](documentation/index.md)
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- [Documentation styleguide](documentation/styleguide.md)
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- [Markdown](../user/markdown.md)
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## Internationalization (i18n) guides
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- [Introduction](i18n/index.md)
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- [Externalization](i18n/externalization.md)
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- [Translation](i18n/translation.md)
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## Build guides
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- [Building a package for testing purposes](build_test_package.md)
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## Compliance
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- [Licensing](licensing.md) for ensuring license compliance
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## Go guides
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- [Go Guidelines](go_guide/index.md)
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## Shell Scripting guides
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- [Shell scripting standards and style guidelines](shell_scripting_guide/index.md)
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## Other GitLab Development Kit (GDK) guides
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- [Run full Auto DevOps cycle in a GDK instance](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/auto_devops.md)
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- [Using GitLab Runner with GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/runner.md)
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