Class: Balmora::Command::Pacman

Inherits:
Balmora::Command show all
Defined in:
lib/balmora/command/pacman.rb

Direct Known Subclasses

Yaourt

Instance Method Summary collapse

Methods inherited from Balmora::Command

#_execute, #execute, #option

Constructor Details

#initialize(state, command) ⇒ Pacman

Returns a new instance of Pacman.



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# File 'lib/balmora/command/pacman.rb', line 3

def initialize(state, command)
  super(state, command)
  @bin = ['sudo', 'pacman']
end

Instance Method Details

#_installed ⇒ Object 



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# File 'lib/balmora/command/pacman.rb', line 59

def _installed()
  packages =
    @shell.
    run!(['pacman', '-Q'], verbose: false).
    split("\n").
    collect() { |package|
      package.split(' ')[0]
    }

  return packages
end

#init ⇒ Object 



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# File 'lib/balmora/command/pacman.rb', line 8

def init()
  super()
  @action = @variables.inject(@action)
  @packages = @variables.inject(@packages)
  @synchronize = @variables.inject(@synchronize)
end

#options ⇒ Object 



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# File 'lib/balmora/command/pacman.rb', line 15

def options()
  return super().concat([:action, :packages, :synchronize])
end

#run ⇒ Object 



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# File 'lib/balmora/command/pacman.rb', line 34

def run()
  command = '-S'

  if @synchronize != false
    command += 'y'
  end

  if @action == 'install'
    packages = @packages - _installed()
  elsif @action == 'update'
    packages = @packages
  elsif @action == 'remove'
    packages = @packages & _installed()
    command = '-R'
  else
    raise Error.new("Wrong action #{@action.inspect()}")
  end

  if packages.length == 0
    return
  end

  @shell.system([*@bin, command, *packages, '--noconfirm'])
end

#verify ⇒ Object 



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# File 'lib/balmora/command/pacman.rb', line 19

def verify()
  if @action.nil?()
    raise Error.new('"action" should be set')
  end

  if !['install', 'update', 'remove'].include?(@action)
    raise Error.new('wrong "action" value; allowed values: install, ' +
      'update, remove')
  end

  if @packages.nil?() || @packages.empty?()
    raise Error.new('"packages" should be set')
  end
end