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Contents
# frozen_string_literal: true
module Datadog
module Core
# Namespace for handling application environment
module Environment
# Defines helper methods for environment
# @public_api
module VariableHelpers
extend self
# Reads an environment variable as a Boolean.
#
# @param [String] var environment variable
# @param [Array<String>] var list of environment variables
# @param [Boolean] default the default value if the keys in `var` are not present in the environment
# @param [Boolean] deprecation_warning when `var` is a list, record a deprecation log when
# the first key in `var` is not used.
# @return [Boolean] if the environment value is the string `true` or `1`
# @return [default] if the environment value is not found
def env_to_bool(var, default = nil, deprecation_warning: true)
var = decode_array(var, deprecation_warning)
if var && ENV.key?(var)
value = ENV[var].to_s.strip
value.downcase!
value == 'true' || value == '1' # rubocop:disable Style/MultipleComparison
else
default
end
end
private
def decode_array(var, deprecation_warning)
if var.is_a?(Array)
var.find.with_index do |env_var, i|
found = ENV.key?(env_var)
# Check if we are using a non-preferred environment variable
if deprecation_warning && found && i != 0
Datadog::Core.log_deprecation { "#{env_var} environment variable is deprecated, use #{var.first} instead." }
end
found
end
else
var
end
end
end
end
end
end
Version data entries
32 entries across 32 versions & 2 rubygems