Class: Ansible::Inventory

Inherits:
Object
  • Object
show all
Defined in:
lib/ansible/inventory.rb

Defined Under Namespace

Classes: Group, Host

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Inventory

Returns a new instance of Inventory.



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# File 'lib/ansible/inventory.rb', line 73

def initialize
  @hosts = Host::Collection.new
  @groups = Group::Collection.new
end

Instance Attribute Details

#groups ⇒ Object (readonly)

Returns the value of attribute groups.



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# File 'lib/ansible/inventory.rb', line 71

def groups
  @groups
end

#hosts ⇒ Object (readonly)

Returns the value of attribute hosts.



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# File 'lib/ansible/inventory.rb', line 70

def hosts
  @hosts
end

Class Method Details

.read_file(file) ⇒ Object 



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# File 'lib/ansible/inventory.rb', line 6

def read_file(file)
  inventory = Inventory.new
  last_group = nil
  in_vars = false
  File.foreach(file) do |line|
    case
    when line =~ /^\[\S+\]$/
      group_name = line[/^\[(\S+)\]$/, 1]
      in_vars = group_name.end_with?(':vars')
      if in_vars
        actual_group_name = group_name[0, group_name.index(':')]
        last_group = inventory.groups.find { |g| g.name == actual_group_name }
        last_group ||= inventory.groups.add(actual_group_name)
      else
        last_group = inventory.groups.add(group_name)
      end
    when line =~ /^\s*[^\[]\S+\s*(\S+=\S+\s*)*$/
      host_name, *rest = line.split
      if in_vars && host_name.index('=') && rest.empty?
        k, v = host_name.split('=')
        last_group.vars[k] = v
      else
        vars = Hash[rest.map {|s| s.split('=')}]
        if last_group
          host = inventory.hosts.find {|h| h.name == host_name} || Host.new(host_name, vars)
          last_group.hosts << host
        else
          inventory.hosts.add host_name, vars
        end
      end
    else
      puts line
    end
  end
  inventory
end

Instance Method Details

#write_file(file) ⇒ Object 



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# File 'lib/ansible/inventory.rb', line 44

def write_file(file)
  File.open(file, 'w') do |f|
    hosts.each {|host|
      f.puts ([host.name] + host.vars.map {|k, v| "#{k}=#{v}"}).join(' ')
    }
    groups.each {|group|
      f.puts
      f.puts "[#{group.name}]"
      group.hosts.each {|host|
        if hosts.find {|h| h == host }
          f.puts host.name
        else
          f.puts ([host.name] + host.vars.map {|k, v| "#{k}=#{v}"}).join(' ')
        end
      }
      unless group.vars.empty?
        f.puts
        f.puts "[#{group.name}:vars]"
        group.vars.each {|k, v|
          f.puts "#{k}=#{v}"
        }
      end
    }
  end
end