chef/cookbooks/homebrew/libraries/homebrew_mixin.rb
2016-02-19 18:09:49 +01:00

68 lines
1.9 KiB
Ruby

#
# Author:: Joshua Timberman (<jtimberman@chef.io>)
# Author:: Graeme Mathieson (<mathie@woss.name>)
# Cookbook Name:: homebrew
# Libraries:: homebrew_mixin
#
# Copyright 2011-2013, Chef Software, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Include the mixin from Chef 12 if its defined, when we get to the
# #homebrew_owner method below...
class Chef12HomebrewUser
include Chef::Mixin::HomebrewUser if defined?(Chef::Mixin::HomebrewUser)
end
module Homebrew
# Homebrew
module Mixin
def homebrew_owner
if defined?(Chef::Mixin::HomebrewUser)
begin
require 'etc'
@homebrew_owner ||= ::Etc.getpwuid(Chef12HomebrewUser.new.find_homebrew_uid).name
rescue Chef::Exceptions::CannotDetermineHomebrewOwner
@homebrew_owner ||= calculate_owner
end
else
@homebrew_owner ||= calculate_owner
end
end
private
def calculate_owner
owner = homebrew_owner_attr || sudo_user || current_user
if owner == 'root'
fail Chef::Exceptions::User,
"Homebrew owner is 'root' which is not supported. " \
"To set an explicit owner, please set node['homebrew']['owner']."
end
owner
end
def homebrew_owner_attr
node['homebrew']['owner']
end
def sudo_user
ENV['SUDO_USER']
end
def current_user
ENV['USER']
end
end
end