Module: Shef

Defined in:
lib/chef/shef/ext.rb,
lib/chef/shef.rb,
lib/chef/shef/shef_session.rb

Overview

Author

Daniel DeLeo (<[email protected]>)

Copyright

Copyright © 2009 Daniel DeLeo

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.

Defined Under Namespace

Modules: Extensions Classes: ClientSession, Options, ShefSession, SoloSession, StandAloneSession

Constant Summary collapse

LEADERS = 
Hash.new("")

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.client_type ⇒ Object

Returns the value of attribute client_type.



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# File 'lib/chef/shef.rb', line 36

def client_type
  @client_type
end

.options ⇒ Object

Returns the value of attribute options.



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# File 'lib/chef/shef.rb', line 36

def options
  @options
end

Class Method Details

.configure_irb ⇒ Object 



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# File 'lib/chef/shef.rb', line 54

def self.configure_irb
  irb_conf[:HISTORY_FILE] = "~/.shef_history"
  irb_conf[:SAVE_HISTORY] = 1000
  
  irb_conf[:IRB_RC] = lambda do |conf|
    m = conf.main
    leader = LEADERS[m.class]

    def m.help
      shef_help
    end

    conf.prompt_c       = "chef#{leader} > "
    conf.return_format  = " => %s \n"
    conf.prompt_i       = "chef#{leader} > "
    conf.prompt_n       = "chef#{leader} ?> "
    conf.prompt_s       = "chef#{leader}%l> "
  end
end

.fatal!(message, exit_status) ⇒ Object 



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# File 'lib/chef/shef.rb', line 123

def self.fatal!(message, exit_status)
  Chef::Log.fatal(message)
  exit exit_status
end

.init ⇒ Object 



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# File 'lib/chef/shef.rb', line 79

def self.init
  parse_json
  configure_irb

  session # trigger ohai run + session load
  
  session.node.consume_attributes(@json_attribs)

  greeting = begin
      " #{Etc.getlogin}@#{Shef.session.node.name}"
    rescue NameError
      ""
    end

  version
  puts

  puts "run `help' for help, `exit' or ^D to quit."
  puts
  puts "Ohai2u#{greeting}!"
end

.irb_conf ⇒ Object 



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# File 'lib/chef/shef.rb', line 50

def self.irb_conf
  @irb_conf || IRB.conf
end

.irb_conf=(conf_hash) ⇒ Object

Set the irb_conf object to something other than IRB.conf usful for testing.



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# File 'lib/chef/shef.rb', line 46

def self.irb_conf=(conf_hash)
  @irb_conf = conf_hash
end

.parse_json ⇒ Object 



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# File 'lib/chef/shef.rb', line 101

def self.parse_json
  if Chef::Config[:json_attribs]
    begin
      json_io = open(Chef::Config[:json_attribs])
    rescue SocketError => error
      fatal!("I cannot connect to #{Chef::Config[:json_attribs]}", 2)
    rescue Errno::ENOENT => error
      fatal!("I cannot find #{Chef::Config[:json_attribs]}", 2)
    rescue Errno::EACCES => error
      fatal!("Permissions are incorrect on #{Chef::Config[:json_attribs]}. Please chmod a+r #{Chef::Config[:json_attribs]}", 2)
    rescue Exception => error
      fatal!("Got an unexpected error reading #{Chef::Config[:json_attribs]}: #{error.message}", 2)
    end

    begin
      @json_attribs = JSON.parse(json_io.read)
    rescue JSON::ParserError => error
      fatal!("Could not parse the provided JSON file (#{Chef::Config[:json_attribs]})!: " + error.message, 2)
    end
  end
end

.parse_opts ⇒ Object 



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# File 'lib/chef/shef.rb', line 135

def self.parse_opts
  @options = Options.new
  @options.parse_opts
end

.running? ⇒ Boolean

Shef assumes it’s running whenever it is defined

Returns:

  • (Boolean) 


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# File 'lib/chef/shef.rb', line 40

def self.running?
  true
end

.session ⇒ Object 



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# File 'lib/chef/shef.rb', line 74

def self.session
  client_type.instance.reset! unless client_type.instance.node_built?
  client_type.instance
end