136 lines
4.9 KiB
Ruby
136 lines
4.9 KiB
Ruby
# frozen_string_literal: true
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# == Experimentation
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#
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# Utility module for A/B testing experimental features. Define your experiments in the `EXPERIMENTS` constant.
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# Experiment options:
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# - tracking_category (optional, used to set the category when tracking an experiment event)
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# - use_backwards_compatible_subject_index (optional, set this to true if you need backwards compatibility)
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#
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# The experiment is controlled by a Feature Flag (https://docs.gitlab.com/ee/development/feature_flags/controls.html),
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# which is named "#{experiment_key}_experiment_percentage" and *must* be set with a percentage and not be used for other purposes.
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#
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# To enable the experiment for 10% of the users:
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#
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# chatops: `/chatops run feature set experiment_key_experiment_percentage 10`
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# console: `Feature.enable_percentage_of_time(:experiment_key_experiment_percentage, 10)`
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#
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# To disable the experiment:
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#
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# chatops: `/chatops run feature delete experiment_key_experiment_percentage`
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# console: `Feature.remove(:experiment_key_experiment_percentage)`
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#
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# To check the current rollout percentage:
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#
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# chatops: `/chatops run feature get experiment_key_experiment_percentage`
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# console: `Feature.get(:experiment_key_experiment_percentage).percentage_of_time_value`
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#
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# TODO: see https://gitlab.com/gitlab-org/gitlab/-/issues/217490
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module Gitlab
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module Experimentation
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EXPERIMENTS = {
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onboarding_issues: {
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tracking_category: 'Growth::Conversion::Experiment::OnboardingIssues',
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use_backwards_compatible_subject_index: true
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},
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ci_notification_dot: {
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tracking_category: 'Growth::Expansion::Experiment::CiNotificationDot',
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use_backwards_compatible_subject_index: true
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},
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upgrade_link_in_user_menu_a: {
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tracking_category: 'Growth::Expansion::Experiment::UpgradeLinkInUserMenuA',
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use_backwards_compatible_subject_index: true
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},
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invite_members_version_a: {
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tracking_category: 'Growth::Expansion::Experiment::InviteMembersVersionA',
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use_backwards_compatible_subject_index: true
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},
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invite_members_version_b: {
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tracking_category: 'Growth::Expansion::Experiment::InviteMembersVersionB',
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use_backwards_compatible_subject_index: true
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},
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invite_members_empty_group_version_a: {
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tracking_category: 'Growth::Expansion::Experiment::InviteMembersEmptyGroupVersionA',
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use_backwards_compatible_subject_index: true
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},
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contact_sales_btn_in_app: {
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tracking_category: 'Growth::Conversion::Experiment::ContactSalesInApp',
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use_backwards_compatible_subject_index: true
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},
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customize_homepage: {
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tracking_category: 'Growth::Expansion::Experiment::CustomizeHomepage',
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use_backwards_compatible_subject_index: true
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},
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invite_email: {
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tracking_category: 'Growth::Acquisition::Experiment::InviteEmail',
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use_backwards_compatible_subject_index: true
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},
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group_only_trials: {
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tracking_category: 'Growth::Conversion::Experiment::GroupOnlyTrials',
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use_backwards_compatible_subject_index: true
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},
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default_to_issues_board: {
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tracking_category: 'Growth::Conversion::Experiment::DefaultToIssuesBoard',
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use_backwards_compatible_subject_index: true
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},
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jobs_empty_state: {
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tracking_category: 'Growth::Activation::Experiment::JobsEmptyState'
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},
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remove_known_trial_form_fields: {
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tracking_category: 'Growth::Conversion::Experiment::RemoveKnownTrialFormFields'
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},
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trimmed_skip_trial_copy: {
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tracking_category: 'Growth::Conversion::Experiment::TrimmedSkipTrialCopy'
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}
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}.freeze
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class << self
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def get_experiment(experiment_key)
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return unless EXPERIMENTS.key?(experiment_key)
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::Gitlab::Experimentation::Experiment.new(experiment_key, **EXPERIMENTS[experiment_key])
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end
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def active?(experiment_key)
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experiment = get_experiment(experiment_key)
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return false unless experiment
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experiment.active?
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end
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def in_experiment_group?(experiment_key, subject:)
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return false if subject.blank?
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return false unless active?(experiment_key)
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experiment = get_experiment(experiment_key)
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return false unless experiment
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experiment.enabled_for_index?(index_for_subject(experiment, subject))
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end
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private
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def index_for_subject(experiment, subject)
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index = if experiment.use_backwards_compatible_subject_index
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Digest::SHA1.hexdigest(subject_id(subject)).hex
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else
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Zlib.crc32("#{experiment.key}#{subject_id(subject)}")
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end
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index % 100
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end
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def subject_id(subject)
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if subject.respond_to?(:to_global_id)
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subject.to_global_id.to_s
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elsif subject.respond_to?(:to_s)
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subject.to_s
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else
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raise ArgumentError.new('Subject must respond to `to_global_id` or `to_s`')
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end
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end
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end
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end
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end
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