| .. | ||
| cicd | ||
| contributing | ||
| documentation | ||
| event_tracking | ||
| experiment_guide | ||
| fe_guide | ||
| feature_flags | ||
| go_guide | ||
| i18n | ||
| img | ||
| integrations | ||
| new_fe_guide | ||
| python_guide | ||
| shell_scripting_guide | ||
| testing_guide | ||
| ux_guide | ||
| adding_database_indexes.md | ||
| api_graphql_styleguide.md | ||
| api_styleguide.md | ||
| application_limits.md | ||
| architecture.md | ||
| auto_devops.md | ||
| background_migrations.md | ||
| build_test_package.md | ||
| changelog.md | ||
| chaos_endpoints.md | ||
| chatops_on_gitlabcom.md | ||
| code_comments.md | ||
| code_review.md | ||
| creating_enums.md | ||
| cycle_analytics.md | ||
| dangerbot.md | ||
| database_debugging.md | ||
| database_query_comments.md | ||
| database_review.md | ||
| db_dump.md | ||
| deleting_migrations.md | ||
| diffs.md | ||
| distributed_tracing.md | ||
| doc_styleguide.md | ||
| ee_features.md | ||
| elasticsearch.md | ||
| emails.md | ||
| feature_flags.md | ||
| file_storage.md | ||
| filtering_by_label.md | ||
| foreign_keys.md | ||
| frontend.md | ||
| gemfile.md | ||
| geo.md | ||
| git_object_deduplication.md | ||
| gitaly.md | ||
| github_importer.md | ||
| gitlab_diagram_overview.odg | ||
| gotchas.md | ||
| hash_indexes.md | ||
| i18n_guide.md | ||
| import_export.md | ||
| import_project.md | ||
| instrumentation.md | ||
| interacting_components.md | ||
| internal_api.md | ||
| issuable-like-models.md | ||
| issue_types.md | ||
| iterating_tables_in_batches.md | ||
| kubernetes.md | ||
| lfs.md | ||
| licensed_feature_availability.md | ||
| licensing.md | ||
| logging.md | ||
| mass_insert.md | ||
| merge_request_performance_guidelines.md | ||
| migration_style_guide.md | ||
| module_with_instance_variables.md | ||
| namespaces_storage_statistics.md | ||
| newlines_styleguide.md | ||
| omnibus.md | ||
| ordering_table_columns.md | ||
| packages.md | ||
| performance.md | ||
| permissions.md | ||
| pipelines.md | ||
| policies.md | ||
| polling.md | ||
| polymorphic_associations.md | ||
| post_deployment_migrations.md | ||
| profiling.md | ||
| projections.md | ||
| prometheus_metrics.md | ||
| pry_debugging.md | ||
| query_count_limits.md | ||
| query_recorder.md | ||
| rake_tasks.md | ||
| reactive_caching.md | ||
| README.md | ||
| redis.md | ||
| renaming_features.md | ||
| repository_mirroring.md | ||
| reusing_abstractions.md | ||
| rolling_out_changes_using_feature_flags.md | ||
| routing.md | ||
| scalability.md | ||
| serializing_data.md | ||
| session.md | ||
| sha1_as_binary.md | ||
| shared_files.md | ||
| shell_commands.md | ||
| sidekiq_debugging.md | ||
| sidekiq_style_guide.md | ||
| single_table_inheritance.md | ||
| sql.md | ||
| swapping_tables.md | ||
| testing.md | ||
| ui_guide.md | ||
| understanding_explain_plans.md | ||
| uploads.md | ||
| utilities.md | ||
| value_stream_analytics.md | ||
| verifying_database_capabilities.md | ||
| what_requires_downtime.md | ||
| writing_documentation.md | ||
| comments | description |
|---|---|
| false | Learn how to contribute to GitLab. |
Contributor and Development Docs
Get started
- Set up GitLab's development environment with GitLab Development Kit (GDK)
- GitLab contributing guide
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Processes
Must-reads:
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- Database review guidelines for reviewing database-related changes and complex SQL queries, and having them reviewed
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Complementary reads:
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- Security process for developers
- Guidelines for implementing Enterprise Edition features
- Danger bot
- Generate a changelog entry with
bin/changelog - Requesting access to Chatops on GitLab.com (for GitLabbers)
UX and Frontend guides
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Backend guides
- GitLab utilities
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- Logging
- API styleguide Use this styleguide if you are contributing to the API
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Gemfileguidelines- Pry debugging
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- Issue types vs first-class types
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- Redis guidelines
Performance guides
- Instrumentation for Ruby code running in production environments
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Database guides
Tooling
- Understanding EXPLAIN plans
- explain.depesz.com for visualising the output
of
EXPLAIN - pgFormatter a PostgreSQL SQL syntax beautifier
Migrations
- What requires downtime?
- SQL guidelines for working with SQL queries
- Migrations style guide for creating safe SQL migrations
- Testing Rails migrations guide
- Post deployment migrations
- Background migrations
- Swapping tables
- Deleting migrations
Debugging
- Tracing the source of an SQL query using query comments with Marginalia
- Tracing the source of an SQL query in Rails console using Verbose Query Logs
Best practices
- 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
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Case studies
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Compliance
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