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Class: Gem::Doctor

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, UserInteraction, DefaultUserInteraction, Text
Inherits: Object
Defined in: lib/rubygems/doctor.rb

Overview

Cleans up after a partially-failed uninstall or for an invalid 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

  • REPOSITORY_EXTENSION_MAP = Internal use only

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

    # File 'lib/rubygems/doctor.rb', line 22 
    [ # :nodoc:
  ['specifications', '.gemspec'],
  ['build_info',     '.info'],
  ['cache',          '.gem'],
  ['doc',            ''],
  ['extensions',     ''],
  ['gems',           ''],
]

Class Method Summary

Instance Attribute Summary

DefaultUserInteraction - Included

#ui

See DefaultUserInteraction.ui
#ui=

See DefaultUserInteraction.ui=

Instance Method Summary

UserInteraction - Included

#alert

Displays an alert statement.
#alert_error

Displays an error statement to the error output location.
#alert_warning

Displays a warning statement to the warning output location.
#ask

Asks a question and returns the answer.
#ask_for_password

Asks for a password with a prompt
#ask_yes_no

Asks a yes or no question.
#choose_from_list

Asks the user to answer question with an answer from the given list.
#say

Displays the given statement on the standard output (or equivalent).
#terminate_interaction

Terminates the RubyGems process with the given exit_code
#verbose

Calls say with msg or the results of the block if really_verbose is true.

DefaultUserInteraction - Included

#use_ui

See DefaultUserInteraction.use_ui

Text - Included

#clean_text

Remove any non-printable characters and make the text suitable for printing.
#format_text

Wraps text to wrap characters and optionally indents by indent characters.
#levenshtein_distance

This code is based directly on the Text gem implementation Returns a value representing the “cost” of transforming str1 into str2.
#truncate_text, #min3

Constructor Details

.new(gem_repository, dry_run = false) ⇒ Doctor

Creates a new 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.

[ GitHub ] 

  


# 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 Attribute Details



  

    #gem_repository?  ⇒ Boolean  (readonly)
  



  

    

Are we doctoring a gem repository?


  





  


  [ GitHub ]


  

  


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



def gem_repository?
  not installed_specs.empty?
end


  







Instance Method Details



  

    #doctor  
  



  

    

Cleans up uninstalled files and invalid gem specifications


  



  [ GitHub ]


  

  


# 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? then
    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)  
  

  

    This method is for internal use only.
  



  

    

Removes files in sub_directory with extension


  



  [ GitHub ]


  

  


# 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

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

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

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


  








  

    #doctor_children  
  

  

    This method is for internal use only.
  



  

    

Cleans up children of this gem repository


  



  [ GitHub ]


  

  


# 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


  








  

    #installed_specs  
  

  

    This method is for internal use only.
  



  

    

Specs installed in this gem repository


  



  [ GitHub ]


  

  


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



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