Sha256: 25e9cc87d1dbb40ede352eb941aa6b3b04ef5925dae96ebb7e6dd9cdd462d36a
Contents?: true
Size: 1.33 KB
Versions: 8
Compression:
Stored size: 1.33 KB
Contents
require 'nenv/environment/dumper'
require 'nenv/environment/loader'
module Nenv
class Environment
class Error < ArgumentError
end
class MethodError < Error
def initialize(meth)
@meth = meth
end
end
class AlreadyExistsError < MethodError
def message
format('Method %s already exists', @meth.inspect)
end
end
def initialize(namespace = nil)
@namespace = (namespace ? namespace.upcase : nil)
end
def self.create_method(meth, &block)
_create_env_method(self, meth, &block)
end
def create_method(meth, &block)
self.class._create_env_method(class << self; self; end, meth, &block)
end
private
def _sanitize(meth)
meth.to_s[/^([^=?]*)[=?]?$/, 1].upcase
end
def self._create_env_method(instance, meth, &block)
_fail_if_exists(instance, meth)
instance.send(:define_method, meth) do |*args|
env_name = [@namespace, _sanitize(meth)].compact.join('_')
if args.size == 1
raw_value = args.first
ENV[env_name] = Dumper.new.dump(raw_value, &block)
else
Loader.new(meth).load(ENV[env_name], &block)
end
end
end
def self._fail_if_exists(instance, meth)
fail(AlreadyExistsError, meth) if instance.instance_methods.include?(meth)
end
end
end
Version data entries
8 entries across 8 versions & 3 rubygems