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

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

Constant Summary

Constants included from Mixin::ShellOut

Mixin::ShellOut::DEPRECATED_OPTIONS

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider::Package

#candidate_version

Attributes inherited from Chef::Provider

#action, #cookbook_name, #current_resource, #new_resource, #recipe_name, #run_context

Instance Method Summary collapse

Methods inherited from Chef::Provider::Package

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

Methods included from Mixin::Command

#chdir_or_tmpdir, #handle_command_failures, #output_of_command, #run_command, #run_command_and_return_stdout_stderr, #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, #cleanup_after_converge, #converge_by, #events, #initialize, #node, node_map, #process_resource_requirements, provides, provides?, #requirements, #resource_collection, #resource_updated?, #run_action, #set_updated_status, supports?, #whyrun_mode?, #whyrun_supported?

Methods included from Mixin::DescendantsTracker

#descendants, descendants, direct_descendants, #direct_descendants, find_descendants_by_name, #find_descendants_by_name, #inherited, store_inherited

Methods included from Mixin::ShellOut

#run_command_compatible_options, #shell_out, #shell_out!, #shell_out_with_systems_locale, #shell_out_with_systems_locale!

Constructor Details

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

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 30

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 53

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

  shell_out!("apt-cache#{expand_options(default_release_options)} policy #{package}", :timeout => @new_resource.timeout).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 = $1
      if candidate_version == '(none)'
        # This may not be an appropriate assumption, but it shouldn't break anything that already worked -- btm
        @is_virtual_package = true
        showpkg = shell_out!("apt-cache showpkg #{package}", :timeout => @new_resource.timeout).stdout
        providers = Hash.new
        # Returns all lines after 'Reverse Provides:'
        showpkg.rpartition(/Reverse Provides:\s*#{$/}/)[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

#default_release_options ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 48

def default_release_options
  # Use apt::Default-Release option only if provider was explicitly defined
  "-o APT::Default-Release=#{@new_resource.default_release}" if @new_resource.provider && @new_resource.default_release
end

#define_resource_requirements ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 39

def define_resource_requirements
  super

  requirements.assert(:all_actions) do |a|
    a.assertion { !@new_resource.source }
    a.failure_message(Chef::Exceptions::Package, 'apt package provider cannot handle source attribute. Use dpkg provider instead')
  end
end

#install_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 99

def install_package(name, version)
  package_name = "#{name}=#{version}"
  package_name = name if @is_virtual_package
  run_noninteractive("apt-get -q -y#{expand_options(default_release_options)}#{expand_options(@new_resource.options)} install #{package_name}")
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 32

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(preseed_file) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 118

def preseed_package(preseed_file)
  Chef::Log.info("#{@new_resource} pre-seeding package installation instructions")
  run_noninteractive("debconf-set-selections #{preseed_file}")
end

#purge_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 114

def purge_package(name, version)
  run_noninteractive("apt-get -q -y#{expand_options(@new_resource.options)} purge #{@new_resource.package_name}")
end

#reconfig_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 123

def reconfig_package(name, version)
  Chef::Log.info("#{@new_resource} reconfiguring")
  run_noninteractive("dpkg-reconfigure #{name}")
end

#remove_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 109

def remove_package(name, version)
  package_name = "#{name}"
  run_noninteractive("apt-get -q -y#{expand_options(@new_resource.options)} remove #{package_name}")
end

#upgrade_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/apt.rb', line 105

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