Class: Gem::Doctor

Inherits:
Object show all
Includes:
UserInteraction
Defined in:
lib/rubygems/doctor.rb

Overview

Cleans up after a partially-failed uninstall or for an invalid Gem::Specification.

If a specification was removed by hand this will remove any remaining files.

If a corrupt specification was installed this will clean up warnings by removing the bogus specification.

Constant Summary collapse

REPOSITORY_EXTENSION_MAP =

Maps a gem subdirectory to the files that are expected to exist in the subdirectory.

[ # :nodoc:
  ['specifications', '.gemspec'],
  ['build_info',     '.info'],
  ['cache',          '.gem'],
  ['doc',            ''],
  ['extensions',     ''],
  ['gems',           ''],
  ['plugins',        ''],
].freeze

Instance Method Summary collapse

Methods included from UserInteraction

#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Methods included from Text

#clean_text, #format_text, #levenshtein_distance, #min3, #truncate_text

Constructor Details

#initialize(gem_repository, dry_run = false) ⇒ Doctor

Creates a new Gem::Doctor that will clean up gem_repository. Only one gem repository may be cleaned at a time.

If dry_run is true no files or directories will be removed.



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# File 'lib/rubygems/doctor.rb', line 44

def initialize(gem_repository, dry_run = false)
  @gem_repository = gem_repository
  @dry_run        = dry_run

  @installed_specs = nil
end

Instance Method Details

#doctor ⇒ Object

Cleans up uninstalled files and invalid gem specifications



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# File 'lib/rubygems/doctor.rb', line 68

def doctor
  @orig_home = Gem.dir
  @orig_path = Gem.path

  say "Checking #{@gem_repository}"

  Gem.use_paths @gem_repository.to_s

  unless gem_repository?
    say 'This directory does not appear to be a RubyGems repository, ' +
        'skipping'
    say
    return
  end

  doctor_children

  say
ensure
  Gem.use_paths @orig_home, *@orig_path
end

#doctor_child(sub_directory, extension) ⇒ Object

Removes files in sub_directory with extension



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# File 'lib/rubygems/doctor.rb', line 102

def doctor_child(sub_directory, extension) # :nodoc:
  directory = File.join(@gem_repository, sub_directory)

  Dir.entries(directory).sort.each do |ent|
    next if ent == "." || ent == ".."

    child = File.join(directory, ent)
    next unless File.exist?(child)

    basename = File.basename(child, extension)
    next if installed_specs.include? basename
    next if /^rubygems-\d/ =~ basename
    next if 'specifications' == sub_directory and 'default' == basename
    next if 'plugins' == sub_directory and Gem.plugin_suffix_regexp =~ basename

    type = File.directory?(child) ? 'directory' : 'file'

    action = if @dry_run
               'Extra'
             else
               FileUtils.rm_r(child)
               'Removed'
             end

    say "#{action} #{type} #{sub_directory}/#{File.basename(child)}"
  end
rescue Errno::ENOENT
  # ignore
end

#doctor_children ⇒ Object

Cleans up children of this gem repository



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# File 'lib/rubygems/doctor.rb', line 93

def doctor_children # :nodoc:
  REPOSITORY_EXTENSION_MAP.each do |sub_directory, extension|
    doctor_child sub_directory, extension
  end
end

#gem_repository? ⇒ Boolean

Are we doctoring a gem repository?

Returns:

  • (Boolean) 


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# File 'lib/rubygems/doctor.rb', line 61

def gem_repository?
  not installed_specs.empty?
end

#installed_specs ⇒ Object

Specs installed in this gem repository



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# File 'lib/rubygems/doctor.rb', line 54

def installed_specs # :nodoc:
  @installed_specs ||= Gem::Specification.map {|s| s.full_name }
end