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Versions: 15
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Contents
require 'chamber/environmentable'
module Chamber
module Filters
class EnvironmentFilter
include Environmentable
def initialize(options = {})
self.data = options.fetch(:data)
end
###
# Internal: Allows the existing environment to be injected into the passed in
# hash. The hash that is passed in is *not* modified, instead a new hash is
# returned.
#
# Examples:
#
# ###
# # Injects the current environment variables
# #
# ENV['LEVEL_ONE_1_LEVEL_TWO_1'] = 'env value 1'
# ENV['LEVEL_ONE_1_LEVEL_TWO_2_LEVEL_THREE_1'] = 'env value 2'
#
# EnvironmentFilter.execute(
# level_one_1: {
# level_two_1: 'value 1',
# level_two_2: {
# level_three_1: 'value 2' } } )
#
# # => {
# 'level_one_1' => {
# 'level_two_1' => 'env value 1',
# 'level_two_2' => {
# 'level_three_1' => 'env value 2',
# }
#
# ###
# # Can inject environment variables if said variables are prefixed
# #
# ENV['PREFIX_LEVEL_TWO_1'] = 'env value 1'
# ENV['PREFIX_LEVEL_TWO_2'] = 'env value 2'
#
# EnvironmentFilter.execute({
# level_two_1: 'value 1',
# level_two_2: 'value 2'
# },
# ['prefix'])
#
# # => {
# 'level_two_1' => 'env value 1',
# 'level_two_2' => 'env value 2',
# }
#
#
def self.execute(options = {})
self.new(options).send(:execute)
end
protected
attr_accessor :data
def execute(settings = data, parent_keys = [])
with_environment(settings, parent_keys,
->(key, value, environment_keys) do
{ key => execute(value, environment_keys) }
end,
->(key, value, environment_key) do
{ key => (ENV[environment_key] || value) }
end)
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems