Class: Chef::Provider::Package::Rubygems

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

Defined Under Namespace

Classes: AlternateGemEnvironment, CurrentGemEnvironment, GemEnvironment

Constant Summary

Constants included from Mixin::ShellOut

Mixin::ShellOut::DEPRECATED_OPTIONS

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider

#action, #current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods included from Mixin::ShellOut

#run_command_compatible_options, #shell_out, #shell_out!

Methods inherited from Chef::Provider::Package

#action_install, #action_purge, #action_reconfig, #action_remove, #action_upgrade, #define_resource_requirements, #expand_options, #get_preseed_file, #preseed_package, #preseed_resource, #reconfig_package, #removing_package?, #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, #converge_by, #cookbook_name, #define_resource_requirements, #events, #node, #process_resource_requirements, #requirements, #resource_collection, #resource_updated?, #run_action, #set_updated_status, #whyrun_mode?, #whyrun_supported?

Methods included from DSL::Recipe

#method_missing

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Constructor Details

#initialize(new_resource, run_context = nil) ⇒ Rubygems

Returns a new instance of Rubygems.



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# File 'lib/chef/provider/package/rubygems.rb', line 366

def initialize(new_resource, run_context=nil)
  super
  @cleanup_gem_env = true
  if new_resource.gem_binary
    if new_resource.options && new_resource.options.kind_of?(Hash)
      msg =  "options cannot be given as a hash when using an explicit gem_binary\n"
      msg << "in #{new_resource} from #{new_resource.source_line}"
      raise ArgumentError, msg
    end
    @gem_env = AlternateGemEnvironment.new(new_resource.gem_binary)
    Chef::Log.debug("#{@new_resource} using gem '#{new_resource.gem_binary}'")
  elsif is_omnibus? && (!@new_resource.instance_of? Chef::Resource::ChefGem)
    # Opscode Omnibus - The ruby that ships inside omnibus is only used for Chef
    # Default to installing somewhere more functional
    if new_resource.options && new_resource.options.kind_of?(Hash)
      msg = "options should be a string instead of a hash\n"
      msg << "in #{new_resource} from #{new_resource.source_line}"
      raise ArgumentError, msg
    end
    gem_location = find_gem_by_path
    @new_resource.gem_binary gem_location
    @gem_env = AlternateGemEnvironment.new(gem_location)
    Chef::Log.debug("#{@new_resource} using gem '#{gem_location}'")
  else
    @gem_env = CurrentGemEnvironment.new
    @cleanup_gem_env = false
    Chef::Log.debug("#{@new_resource} using gem from running ruby environment")
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::DSL::Recipe

Instance Attribute Details

#cleanup_gem_env ⇒ Object (readonly)

Returns the value of attribute cleanup_gem_env.



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# File 'lib/chef/provider/package/rubygems.rb', line 358

def cleanup_gem_env
  @cleanup_gem_env
end

#gem_env ⇒ Object (readonly)

Returns the value of attribute gem_env.



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# File 'lib/chef/provider/package/rubygems.rb', line 357

def gem_env
  @gem_env
end

Instance Method Details

#all_installed_versions ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 457

def all_installed_versions
  @all_installed_versions ||= begin
    @gem_env.installed_versions(Gem::Dependency.new(gem_dependency.name, '>= 0'))
  end
end

#candidate_version ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 483

def candidate_version
  @candidate_version ||= begin
    if target_version_already_installed?
      nil
    elsif source_is_remote?
      @gem_env.candidate_version_from_remote(gem_dependency, *gem_sources).to_s
    else
      @gem_env.candidate_version_from_file(gem_dependency, @new_resource.source).to_s
    end
  end
end

#cleanup_after_converge ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 476

def cleanup_after_converge
  if @cleanup_gem_env
    logger.debug { "#{@new_resource} resetting gem environment to default" }
    Gem.clear_paths
  end
end

#current_version ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 433

def current_version
  #raise 'todo'
  # If one or more matching versions are installed, the newest of them
  # is the current version
  if !matching_installed_versions.empty?
    gemspec = matching_installed_versions.last
    logger.debug { "#{@new_resource} found installed gem #{gemspec.name} version #{gemspec.version} matching #{gem_dependency}"}
    gemspec
  # If no version matching the requirements exists, the latest installed
  # version is the current version.
  elsif !all_installed_versions.empty?
    gemspec = all_installed_versions.last
    logger.debug { "#{@new_resource} newest installed version of gem #{gemspec.name} is #{gemspec.version}" }
    gemspec
  else
    logger.debug { "#{@new_resource} no installed version found for #{gem_dependency.to_s}"}
    nil
  end
end

#find_gem_by_path ⇒ Object

Raises:



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# File 'lib/chef/provider/package/rubygems.rb', line 410

def find_gem_by_path
  Chef::Log.debug("#{@new_resource} searching for 'gem' binary in path: #{ENV['PATH']}")
  separator = ::File::ALT_SEPARATOR ? ::File::ALT_SEPARATOR : ::File::SEPARATOR
  path_to_first_gem = ENV['PATH'].split(::File::PATH_SEPARATOR).select { |path| ::File.exists?(path + separator + "gem") }.first
  raise Chef::Exceptions::FileNotFound, "Unable to find 'gem' binary in path: #{ENV['PATH']}" if path_to_first_gem.nil?
  path_to_first_gem + separator + "gem"
end

#gem_binary_path ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 527

def gem_binary_path
  @new_resource.gem_binary || 'gem'
end

#gem_dependency ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 418

def gem_dependency
  Gem::Dependency.new(@new_resource.package_name, @new_resource.version)
end

#gem_sources ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 463

def gem_sources
  @new_resource.source ? Array(@new_resource.source) : nil
end

#install_package(name, version) ⇒ Object

Installs the gem, using either the gems API or shelling out to ‘gem` according to the following criteria:

  1. Use gems API (Gem::DependencyInstaller) by default

  2. shell out to ‘gem install` when a String of options is given

  3. use gems API with options if a hash of options is given



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# File 'lib/chef/provider/package/rubygems.rb', line 508

def install_package(name, version)
  if source_is_remote? && @new_resource.gem_binary.nil?
    if @new_resource.options.nil?
      @gem_env.install(gem_dependency, :sources => gem_sources)
    elsif @new_resource.options.kind_of?(Hash)
      options = @new_resource.options
      options[:sources] = gem_sources
      @gem_env.install(gem_dependency, options)
    else
      install_via_gem_command(name, version)
    end
  elsif @new_resource.gem_binary.nil?
    @gem_env.install(@new_resource.source)
  else
    install_via_gem_command(name,version)
  end
  true
end

#install_via_gem_command(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 531

def install_via_gem_command(name, version)
  if @new_resource.source =~ /\.gem$/i
    name = @new_resource.source
  else
    src = @new_resource.source && "  --source=#{@new_resource.source} --source=http://rubygems.org"
  end
  if version
    shell_out!("#{gem_binary_path} install #{name} -q --no-rdoc --no-ri -v \"#{version}\"#{src}#{opts}", :env=>nil)
  else
    shell_out!("#{gem_binary_path} install \"#{name}\" -q --no-rdoc --no-ri #{src}#{opts}", :env=>nil)
  end
end

#is_omnibus? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/package/rubygems.rb', line 396

def is_omnibus?
  if RbConfig::CONFIG['bindir'] =~ %r!/opt/(opscode|chef)/embedded/bin!
    Chef::Log.debug("#{@new_resource} detected omnibus installation in #{RbConfig::CONFIG['bindir']}")
    # Omnibus installs to a static path because of linking on unix, find it.
    true
  elsif RbConfig::CONFIG['bindir'].sub(/^[\w]:/, '')  == "/opscode/chef/embedded/bin"
    Chef::Log.debug("#{@new_resource} detected omnibus installation in #{RbConfig::CONFIG['bindir']}")
    # windows, with the drive letter removed
    true
  else
    false
  end
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 467

def load_current_resource
  @current_resource = Chef::Resource::Package::GemPackage.new(@new_resource.name)
  @current_resource.package_name(@new_resource.package_name)
  if current_spec = current_version
    @current_resource.version(current_spec.version.to_s)
  end
  @current_resource
end

#logger ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 360

def logger
  Chef::Log.logger
end

#matching_installed_versions ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 453

def matching_installed_versions
  @matching_installed_versions ||= @gem_env.installed_versions(gem_dependency)
end

#purge_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 570

def purge_package(name, version)
  remove_package(name, version)
end

#remove_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 548

def remove_package(name, version)
  if @new_resource.gem_binary.nil?
    if @new_resource.options.nil?
      @gem_env.uninstall(name, version)
    elsif @new_resource.options.kind_of?(Hash)
      @gem_env.uninstall(name, version, @new_resource.options)
    else
      uninstall_via_gem_command(name, version)
    end
  else
    uninstall_via_gem_command(name, version)
  end
end

#source_is_remote? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/package/rubygems.rb', line 422

def source_is_remote?
  return true if @new_resource.source.nil?
  scheme = URI.parse(@new_resource.source).scheme
  # URI.parse gets confused by MS Windows paths with forward slashes.
  scheme = nil if scheme =~ /^[a-z]$/
  %w{http https}.include?(scheme)
rescue URI::InvalidURIError
  Chef::Log.debug("#{@new_resource} failed to parse source '#{@new_resource.source}' as a URI, assuming a local path")
  false
end

#target_version_already_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/package/rubygems.rb', line 495

def target_version_already_installed?
  return false unless @current_resource && @current_resource.version
  return false if @current_resource.version.nil?

  Gem::Requirement.new(@new_resource.version).satisfied_by?(Gem::Version.new(@current_resource.version))
end

#uninstall_via_gem_command(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 562

def uninstall_via_gem_command(name, version)
  if version
    shell_out!("#{gem_binary_path} uninstall #{name} -q -x -I -v \"#{version}\"#{opts}", :env=>nil)
  else
    shell_out!("#{gem_binary_path} uninstall #{name} -q -x -I -a#{opts}", :env=>nil)
  end
end

#upgrade_package(name, version) ⇒ Object 



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# File 'lib/chef/provider/package/rubygems.rb', line 544

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