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#
# Author:: Joe Williams (<joe@joetify.com>)
# Copyright:: Copyright (c) 2009 Joe Williams
# 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 "chef/log"
require "chef/mixin/command"
require "chef/provider"
class Chef
class Provider
class ErlCall < Chef::Provider
include Chef::Mixin::Command
provides :erl_call
def initialize(node, new_resource)
super(node, new_resource)
end
def whyrun_supported?
true
end
def load_current_resource
true
end
def action_run
case @new_resource.name_type
when "sname"
node = "-sname #{@new_resource.node_name}"
when "name"
node = "-name #{@new_resource.node_name}"
end
if @new_resource.cookie
cookie = "-c #{@new_resource.cookie}"
else
cookie = ""
end
if @new_resource.distributed
distributed = "-s"
else
distributed = ""
end
command = "erl_call -e #{distributed} #{node} #{cookie}"
converge_by("run erlang block") do
begin
pid, stdin, stdout, stderr = popen4(command, :waitlast => true)
Chef::Log.debug("#{@new_resource} running")
Chef::Log.debug("#{@new_resource} command: #{command}")
Chef::Log.debug("#{@new_resource} code: #{@new_resource.code}")
@new_resource.code.each_line { |line| stdin.puts(line.chomp) }
stdin.close
Chef::Log.debug("#{@new_resource} output: ")
stdout_output = ""
stdout.each_line { |line| stdout_output << line }
stdout.close
stderr_output = ""
stderr.each_line { |line| stderr_output << line }
stderr.close
# fail if stderr contains anything
if stderr_output.length > 0
raise Chef::Exceptions::ErlCall, stderr_output
end
# fail if the first 4 characters aren't "{ok,"
unless stdout_output[0..3].include?("{ok,")
raise Chef::Exceptions::ErlCall, stdout_output
end
@new_resource.updated_by_last_action(true)
Chef::Log.debug("#{@new_resource} #{stdout_output}")
Chef::Log.info("#{@new_resouce} ran successfully")
ensure
Process.wait(pid) if pid
end
end
end
end
end
end
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