debian-mirror-gitlab/lib/gitlab/current_settings.rb

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# frozen_string_literal: true
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module Gitlab
module CurrentSettings
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class << self
def current_application_settings
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Gitlab::SafeRequestStore.fetch(:current_application_settings) { ensure_application_settings! }
end
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def expire_current_application_settings
::ApplicationSetting.expire
Gitlab::SafeRequestStore.delete(:current_application_settings)
end
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def clear_in_memory_application_settings!
@in_memory_application_settings = nil
end
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def method_missing(name, *args, &block)
current_application_settings.send(name, *args, &block) # rubocop:disable GitlabSecurity/PublicSend
end
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def respond_to_missing?(name, include_private = false)
current_application_settings.respond_to?(name, include_private) || super
end
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private
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def ensure_application_settings!
cached_application_settings || uncached_application_settings
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end
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def cached_application_settings
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return in_memory_application_settings if ENV['IN_MEMORY_APPLICATION_SETTINGS'] == 'true'
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begin
::ApplicationSetting.cached
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rescue
# In case Redis isn't running
# or the Redis UNIX socket file is not available
# or the DB is not running (we use migrations in the cache key)
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end
end
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def uncached_application_settings
return fake_application_settings unless connect_to_db?
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current_settings = ::ApplicationSetting.current
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# If there are pending migrations, it's possible there are columns that
# need to be added to the application settings. To prevent Rake tasks
# and other callers from failing, use any loaded settings and return
# defaults for missing columns.
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if Gitlab::Runtime.rake? && ActiveRecord::Base.connection.migration_context.needs_migration?
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db_attributes = current_settings&.attributes || {}
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fake_application_settings(db_attributes)
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elsif current_settings.present?
current_settings
else
::ApplicationSetting.create_from_defaults
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end
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end
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def fake_application_settings(attributes = {})
Gitlab::FakeApplicationSettings.new(::ApplicationSetting.defaults.merge(attributes || {}))
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end
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def in_memory_application_settings
@in_memory_application_settings ||= ::ApplicationSetting.build_from_defaults
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end
def connect_to_db?
# When the DBMS is not available, an exception (e.g. PG::ConnectionBad) is raised
active_db_connection = ActiveRecord::Base.connection.active? rescue false
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active_db_connection &&
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Gitlab::Database.cached_table_exists?('application_settings')
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rescue ActiveRecord::NoDatabaseError
false
end
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end
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end
end