Class: Chef::RunList

Inherits:
Object show all
Includes:
Enumerable
Defined in:
lib/chef/run_list.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RunList

Returns a new instance of RunList.



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# File 'lib/chef/run_list.rb', line 26

def initialize
  @run_list = Array.new
  @recipes = Array.new
  @roles = Array.new
  @seen_roles = Array.new
end

Instance Attribute Details

#recipes ⇒ Object (readonly)

Returns the value of attribute recipes.



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# File 'lib/chef/run_list.rb', line 24

def recipes
  @recipes
end

#roles ⇒ Object (readonly)

Returns the value of attribute roles.



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# File 'lib/chef/run_list.rb', line 24

def roles
  @roles
end

#run_list ⇒ Object (readonly)

Returns the value of attribute run_list.



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# File 'lib/chef/run_list.rb', line 24

def run_list
  @run_list
end

Instance Method Details

#<<(item) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 33

def <<(item)
  type, entry, fentry = parse_entry(item)
  case type
  when 'recipe'
    @recipes << entry unless @recipes.include?(entry)
  when 'role'
    @roles << entry unless @roles.include?(entry)
  end
  @run_list << fentry unless @run_list.include?(fentry)
  self
end

#==(*isequal) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 45

def ==(*isequal)
  check_array = nil
  if isequal[0].kind_of?(Chef::RunList)
    check_array = isequal[0].run_list
  else
    check_array = isequal.flatten
  end
  
  return false if check_array.length != @run_list.length

  check_array.each_index do |i|
    to_check = check_array[i]
    type, name, fname = parse_entry(to_check)
    return false if @run_list[i] != fname
  end

  true
end

#[](pos) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 72

def [](pos)
  @run_list[pos]
end

#[]=(pos, item) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 76

def []=(pos, item)
  type, entry, fentry = parse_entry(item)
  @run_list[pos] = fentry 
end

#each(&block) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 81

def each(&block)
  @run_list.each { |i| block.call(i) }
end

#each_index(&block) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 85

def each_index(&block)
  @run_list.each_index { |i| block.call(i) }
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/run_list.rb', line 68

def empty?
  @run_list.length == 0 ? true : false
end

#expand(from = 'server', couchdb = nil, rest = nil) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 119

def expand(from='server', couchdb=nil, rest=nil)
  couchdb = couchdb ? couchdb : Chef::CouchDB.new
  recipes = Array.new
  default_attrs = Mash.new
  override_attrs = Mash.new
  
  @run_list.each do |entry|
    type, name, fname = parse_entry(entry)
    case type
    when 'recipe'
      recipes << name unless recipes.include?(name)
    when 'role'
      role = begin
               next if @seen_roles.include?(name)
               @seen_roles << name
               if from == 'disk' || Chef::Config[:solo]
                 # Load the role from disk
                 Chef::Role.from_disk("#{name}") || raise(Chef::Exceptions::RoleNotFound)
               elsif from == 'server'
                 # Load the role from the server
                 begin
                   (rest || Chef::REST.new(Chef::Config[:role_url])).get_rest("roles/#{name}") 
                 rescue Net::HTTPServerException
                   raise Chef::Exceptions::RoleNotFound if $!.message == '404 "Not Found"'
                   raise
                 end
               elsif from == 'couchdb'
                 # Load the role from couchdb
                 Chef::Role.cdb_load(name, couchdb) rescue Chef::Exceptions::CouchDBNotFound raise(Chef::Exceptions::RoleNotFound)
               end
             rescue Chef::Exceptions::RoleNotFound
               Chef::Log.error("Role #{name} is in the runlist but does not exist. Skipping expand.")
               next
             end
      rec, d, o = role.run_list.expand(from, couchdb, rest)
      rec.each { |r| recipes <<  r unless recipes.include?(r) }
      default_attrs = Chef::Mixin::DeepMerge.merge(default_attrs, Chef::Mixin::DeepMerge.merge(role.default_attributes,d))
      override_attrs = Chef::Mixin::DeepMerge.merge(override_attrs, Chef::Mixin::DeepMerge.merge(role.override_attributes, o))
    end
  end
  return recipes, default_attrs, override_attrs
end

#include?(item) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/run_list.rb', line 89

def include?(item)
  type, entry, fentry = parse_entry(item)
  @run_list.include?(fentry)
end

#parse_entry(entry) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 162

def parse_entry(entry)
  case entry 
  when /^(.+)\[(.+)\]$/
    [ $1, $2, entry ]
  else
    [ 'recipe', entry, "recipe[#{entry}]" ]
  end
end

#remove(item) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 108

def remove(item)
  type, entry, fentry = parse_entry(item)
  @run_list.delete_if { |i| i == fentry }
  if type == "recipe"
    @recipes.delete_if { |i| i == entry }
  elsif type == "role"
    @roles.delete_if { |i| i == entry }
  end
  self
end

#reset!(*args) ⇒ Object 



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# File 'lib/chef/run_list.rb', line 94

def reset!(*args)
  @run_list = Array.new
  @recipes = Array.new
  @roles = Array.new
  args.flatten.each do |item|
    if item.kind_of?(Chef::RunList)
      item.each { |r| self << r }
    else
      self << item
    end
  end
  self
end

#to_s ⇒ Object 



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# File 'lib/chef/run_list.rb', line 64

def to_s
  @run_list.join(", ")
end