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#
# Author:: Igor Afonov <afonov@gmail.com>
# Copyright:: Copyright (c) 2011 Igor Afonov
# License:: Apache License, Version 2.0
#
# 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.
#
require 'rexml/document'
require 'chef/resource/service'
require 'chef/provider/service/simple'
class Chef
class Provider
class Service
class Macosx < Chef::Provider::Service::Simple
include Chef::Mixin::ShellOut
def self.gather_plist_dirs
locations = %w{/Library/LaunchAgents
/Library/LaunchDaemons
/System/Library/LaunchAgents
/System/Library/LaunchDaemons }
locations << "#{ENV['HOME']}/Library/LaunchAgents" if ENV['HOME']
locations
end
PLIST_DIRS = gather_plist_dirs
def load_current_resource
@current_resource = Chef::Resource::Service.new(@new_resource.name)
@current_resource.service_name(@new_resource.service_name)
@plist_size = 0
@plist = find_service_plist
@service_label = find_service_label
set_service_status
@current_resource
end
def define_resource_requirements
#super
requirements.assert(:reload) do |a|
a.failure_message Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :reload"
end
requirements.assert(:all_actions) do |a|
a.assertion { @plist_size < 2 }
a.failure_message Chef::Exceptions::Service, "Several plist files match service name. Please use full service name."
end
requirements.assert(:enable, :disable) do |a|
a.assertion { !@service_label.to_s.empty? }
a.failure_message Chef::Exceptions::Service,
"Could not find service's label in plist file '#{@plist}'!"
end
requirements.assert(:all_actions) do |a|
a.assertion { @plist_size > 0 }
# No failrue here in original code - so we also will not
# fail. Instead warn that the service is potentially missing
a.whyrun "Assuming that the service would have been previously installed and is currently disabled." do
@current_resource.enabled(false)
@current_resource.running(false)
end
end
end
def start_service
if @current_resource.running
Chef::Log.debug("#{@new_resource} already running, not starting")
else
if @new_resource.start_command
super
else
shell_out!("launchctl load -w '#{@plist}'", :user => @owner_uid, :group => @owner_gid)
end
end
end
def stop_service
unless @current_resource.running
Chef::Log.debug("#{@new_resource} not running, not stopping")
else
if @new_resource.stop_command
super
else
shell_out!("launchctl unload '#{@plist}'", :user => @owner_uid, :group => @owner_gid)
end
end
end
def restart_service
if @new_resource.restart_command
super
else
stop_service
sleep 1
start_service
end
end
# On OS/X, enabling a service has the side-effect of starting it,
# and disabling a service has the side-effect of stopping it.
#
# This makes some sense on OS/X since launchctl is an "init"-style
# supervisor that will restart daemons that are crashing, etc.
def enable_service
if @current_resource.enabled
Chef::Log.debug("#{@new_resource} already enabled, not enabling")
else
shell_out!(
"launchctl load -w '#{@plist}'",
:user => @owner_uid, :group => @owner_gid
)
end
end
def disable_service
unless @current_resource.enabled
Chef::Log.debug("#{@new_resource} not enabled, not disabling")
else
shell_out!(
"launchctl unload -w '#{@plist}'",
:user => @owner_uid, :group => @owner_gid
)
end
end
def set_service_status
return if @plist == nil or @service_label.to_s.empty?
cmd = shell_out(
"launchctl list #{@service_label}",
:user => @owner_uid, :group => @owner_gid
)
if cmd.exitstatus == 0
@current_resource.enabled(true)
else
@current_resource.enabled(false)
end
if @current_resource.enabled
@owner_uid = ::File.stat(@plist).uid
@owner_gid = ::File.stat(@plist).gid
shell_out!(
"launchctl list", :user => @owner_uid, :group => @owner_gid
).stdout.each_line do |line|
case line
when /(\d+|-)\s+(?:\d+|-)\s+(.*\.?)#{@service_label}/
pid = $1
@current_resource.running(!pid.to_i.zero?)
end
end
else
@current_resource.running(false)
end
end
private
def find_service_label
# CHEF-5223 "you can't glob for a file that hasn't been converged
# onto the node yet."
return nil if @plist.nil?
# Most services have the same internal label as the name of the
# plist file. However, there is no rule saying that *has* to be
# the case, and some core services (notably, ssh) do not follow
# this rule.
# plist files can come in XML or Binary formats. this command
# will make sure we get XML every time.
plist_xml = shell_out!("plutil -convert xml1 -o - #{@plist}").stdout
plist_doc = REXML::Document.new(plist_xml)
plist_doc.elements[
"/plist/dict/key[text()='Label']/following::string[1]/text()"]
end
def find_service_plist
plists = PLIST_DIRS.inject([]) do |results, dir|
edir = ::File.expand_path(dir)
entries = Dir.glob(
"#{edir}/*#{@current_resource.service_name}*.plist"
)
entries.any? ? results << entries : results
end
plists.flatten!
@plist_size = plists.size
plists.first
end
end
end
end
end
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