gitlab-org--gitlab-foss/lib/gitlab/application_context.rb

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# frozen_string_literal: true
module Gitlab
# A GitLab-rails specific accessor for `Labkit::Logging::ApplicationContext`
class ApplicationContext
include Gitlab::Utils::LazyAttributes
Attribute = Struct.new(:name, :type, :evaluation)
APPLICATION_ATTRIBUTES = [
Attribute.new(:project, Project),
Attribute.new(:namespace, Namespace),
Attribute.new(:user, User),
Attribute.new(:caller_id, String)
].freeze
def self.with_context(args, &block)
application_context = new(**args)
application_context.use(&block)
end
def self.push(args)
application_context = new(**args)
Labkit::Context.push(application_context.to_lazy_hash)
end
def initialize(**args)
unknown_attributes = args.keys - APPLICATION_ATTRIBUTES.map(&:name)
raise ArgumentError, "#{unknown_attributes} are not known keys" if unknown_attributes.any?
@set_values = args.keys
assign_attributes(args)
end
def to_lazy_hash
{}.tap do |hash|
hash[:user] = -> { username } if set_values.include?(:user)
hash[:project] = -> { project_path } if set_values.include?(:project)
hash[:root_namespace] = -> { root_namespace_path } if include_namespace?
hash[:caller_id] = caller_id if set_values.include?(:caller_id)
end
end
def use
Labkit::Context.with_context(to_lazy_hash) { yield }
end
private
attr_reader :set_values
APPLICATION_ATTRIBUTES.each do |attr|
lazy_attr_reader attr.name, type: attr.type
end
def assign_attributes(values)
values.slice(*APPLICATION_ATTRIBUTES.map(&:name)).each do |name, value|
instance_variable_set("@#{name}", value)
end
end
def project_path
project&.full_path
end
def username
user&.username
end
def root_namespace_path
if namespace
namespace.full_path_components.first
else
project&.full_path_components&.first
end
end
def include_namespace?
set_values.include?(:namespace) || set_values.include?(:project)
end
end
end
Gitlab::ApplicationContext.prepend_if_ee('EE::Gitlab::ApplicationContext')