Class: Knife::Helper::Commands

Inherits:
Object
  • Object
show all
Defined in:
lib/knife/helper/commands.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base, commands, option_sets) ⇒ Commands

Returns a new instance of Commands.



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# File 'lib/knife/helper/commands.rb', line 9

def initialize(base, commands, option_sets)
  @base = base
  @commands = commands
  @option_sets = option_sets
end

Instance Attribute Details

#commands ⇒ Object (readonly)

Returns the value of attribute commands.



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# File 'lib/knife/helper/commands.rb', line 7

def commands
  @commands
end

Instance Method Details

#build(name) ⇒ Object 



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# File 'lib/knife/helper/commands.rb', line 15

def build(name)
  cmd = ""
  @commands.each do |c|
    if c['name'] == name
      cmd = @base
      cmd << " #{c['command']}" if c.has_key?('command')
      cmd << " '#{c['condition']}'" if c.has_key?('condition') && c['condition']
      options = {}
      option_sets = {}
      c['option_sets'] = Array(c['option_sets']) if c['option_sets'].is_a?(String)
      if c['option_sets'].is_a?(Array)
        c['option_sets'].each do |opts|
          option_set(opts).each do |k,v|
            option_sets[k] = v
          end
        end
      end
      if c['options'].is_a?(Hash)
        c['options'].each do |k,v|
          options[k] = v
        end
      end
      options = Chef::Mixin::DeepMerge.deep_merge(options, option_sets)
      options.each do |k,v|
        cmd << " #{complete_option(k)}"
        cmd << " #{v}" if v
      end
      break
    end
  end
  cmd
end

#complete_option(opt) ⇒ Object 



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# File 'lib/knife/helper/commands.rb', line 52

def complete_option(opt)
  if opt.length > 1
    "--#{opt}"
  else
    "-#{opt}"
  end
end

#exec(name) ⇒ Object 



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# File 'lib/knife/helper/commands.rb', line 48

def exec(name)
  raise "Helper exec finished with non-zero exit code" unless system(build(name))
end

#option_set(name) ⇒ Object 



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# File 'lib/knife/helper/commands.rb', line 60

def option_set(name)
  @option_sets.each {|opts| return opts['options'] if name == opts['name'] }
  Hash.new
end