Class: Chef::Provider::Package::Apt

Inherits:
Chef::Provider::Package show all
Includes:
Mixin::ShellOut
Defined in:
lib/chef/provider/package/apt.rb

Direct Known Subclasses

Dpkg

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider::Package

#candidate_version

Attributes inherited from Chef::Provider

#current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods included from Mixin::ShellOut

#shell_out, #shell_out!

Methods inherited from Chef::Provider::Package

#action_install, #action_purge, #action_remove, #action_upgrade, #expand_options, #get_preseed_file, #initialize, #preseed_resource, #removing_package?

Methods included from Mixin::Command

#chdir_or_tmpdir, #handle_command_failures, #not_if, #only_if, #output_of_command, #run_command, #run_command_with_systems_locale

Methods included from Mixin::Command::Windows

#popen4

Methods included from Mixin::Command::Unix

#popen4

Methods inherited from Chef::Provider

#action_nothing, build_from_file, #cookbook_name, #initialize, #node, #resource_collection

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Methods included from Mixin::RecipeDefinitionDSLCore

#method_missing

Methods included from Mixin::Language

#data_bag, #data_bag_item, #platform?, #search, #value_for_platform

Constructor Details

This class inherits a constructor from Chef::Provider::Package

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::Mixin::RecipeDefinitionDSLCore

Instance Attribute Details

#is_virtual_package ⇒ Object

Returns the value of attribute is_virtual_package.



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# File 'lib/chef/provider/package/apt.rb', line 31

def is_virtual_package
  @is_virtual_package
end

Instance Method Details

#check_package_state(package) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 40

def check_package_state(package)
  Chef::Log.debug("#{@new_resource} checking package status for #{package}")
  installed = false

  shell_out!("apt-cache policy #{package}").stdout.each_line do |line|
    case line
    when /^\s{2}Installed: (.+)$/
      installed_version = $1
      if installed_version == '(none)'
        Chef::Log.debug("#{@new_resource} current version is nil")
        @current_resource.version(nil)
      else
        Chef::Log.debug("#{@new_resource} current version is #{installed_version}")
        @current_resource.version(installed_version)
        installed = true
      end
    when /^\s{2}Candidate: (.+)$/
      candidate_version = $1
      if candidate_version == '(none)'
        # This may not be an appropriate assumption, but it shouldn't break anything that already worked -- btm
        @is_virtual_package = true
        showpkg = shell_out!("apt-cache showpkg #{package}").stdout
        providers = Hash.new
        showpkg.rpartition(/Reverse Provides:? #{$/}/)[2].each_line do |line|
          provider, version = line.split
          providers[provider] = version
        end
        # Check if the package providing this virtual package is installed
        num_providers = providers.length
        raise Chef::Exceptions::Package, "#{@new_resource.package_name} has no candidate in the apt-cache" if num_providers == 0
        # apt will only install a virtual package if there is a single providing package
        raise Chef::Exceptions::Package, "#{@new_resource.package_name} is a virtual package provided by #{num_providers} packages, you must explicitly select one to install" if num_providers > 1
        # Check if the package providing this virtual package is installed
        Chef::Log.info("#{@new_resource} is a virtual package, actually acting on package[#{providers.keys.first}]")
        installed = check_package_state(providers.keys.first)
      else
        Chef::Log.debug("#{@new_resource} candidate version is #{$1}")
        @candidate_version = $1
      end
    end
  end

  return installed
end

#install_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 85

def install_package(name, version)
  package_name = "#{name}=#{version}"
  package_name = name if @is_virtual_package
  run_command_with_systems_locale(
    :command => "apt-get -q -y#{expand_options(@new_resource.options)} install #{package_name}",
    :environment => {
      "DEBIAN_FRONTEND" => "noninteractive"
    }
  )
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 33

def load_current_resource
  @current_resource = Chef::Resource::Package.new(@new_resource.name)
  @current_resource.package_name(@new_resource.package_name)
  check_package_state(@new_resource.package_name)
  @current_resource
end

#preseed_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 119

def preseed_package(name, version)
  preseed_file = get_preseed_file(name, version)
  if preseed_file
    Chef::Log.info("#{@new_resource} pre-seeding package installation instructions")
    run_command_with_systems_locale(
      :command => "debconf-set-selections #{preseed_file}",
      :environment => {
        "DEBIAN_FRONTEND" => "noninteractive"
      }
    )
  end
end

#purge_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 110

def purge_package(name, version)
  run_command_with_systems_locale(
    :command => "apt-get -q -y#{expand_options(@new_resource.options)} purge #{@new_resource.package_name}",
    :environment => {
      "DEBIAN_FRONTEND" => "noninteractive"
    }
  )
end

#remove_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 100

def remove_package(name, version)
  package_name = "#{name}"
  run_command_with_systems_locale(
    :command => "apt-get -q -y#{expand_options(@new_resource.options)} remove #{package_name}",
    :environment => {
      "DEBIAN_FRONTEND" => "noninteractive"
    }
  )
end

#upgrade_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 96

def upgrade_package(name, version)
  install_package(name, version)
end