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# frozen_string_literal: true
module Gitlab
module Usage
class MetricDefinition
METRIC_SCHEMA_PATH = Rails.root.join('config', 'metrics', 'schema.json')
attr_reader :path
attr_reader :attributes
def initialize(path, opts = {})
@path = path
@attributes = opts
end
def key
key_path
end
def to_h
attributes
end
def validate!
unless skip_validation?
self.class.schemer.validate(attributes.stringify_keys).each do |error|
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(Metric::InvalidMetricError.new("#{error["details"] || error['data_pointer']} for `#{path}`"))
end
end
end
alias_method :to_dictionary, :to_h
class << self
def paths
@paths ||= [Rails.root.join('config', 'metrics', '**', '*.yml')]
end
def definitions
@definitions ||= load_all!
end
def schemer
@schemer ||= ::JSONSchemer.schema(Pathname.new(METRIC_SCHEMA_PATH))
end
private
def load_all!
paths.each_with_object({}) do |glob_path, definitions|
load_all_from_path!(definitions, glob_path)
end
end
def load_from_file(path)
definition = File.read(path)
definition = YAML.safe_load(definition)
definition.deep_symbolize_keys!
self.new(path, definition).tap(&:validate!)
rescue => e
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(Metric::InvalidMetricError.new(e.message))
end
def load_all_from_path!(definitions, glob_path)
Dir.glob(glob_path).each do |path|
definition = load_from_file(path)
if previous = definitions[definition.key]
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(Metric::InvalidMetricError.new("Metric '#{definition.key}' is already defined in '#{previous.path}'"))
end
definitions[definition.key] = definition
end
end
end
private
def method_missing(method, *args)
attributes[method] || super
end
def skip_validation?
!!attributes[:skip_validation]
end
end
end
end
Gitlab::Usage::MetricDefinition.prepend_if_ee('EE::Gitlab::Usage::MetricDefinition')
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