Class: Gem::Commands::ContentsCommand

# File 'lib/rubygems/commands/contents_command.rb', line 49

def defaults_str # :nodoc:
  "--no-lib-only --prefix"
end

# File 'lib/rubygems/commands/contents_command.rb', line 53

def description # :nodoc:
  <<-EOF
The contents command lists the files in an installed gem.  The listing can
be given as full file names, file names without the installed directory
prefix or only the files that are requireable.
  EOF
end

# File 'lib/rubygems/commands/contents_command.rb', line 65

def execute
  @version   = options[:version] || Gem::Requirement.default
  @spec_dirs = specification_directories
  @path_kind = path_description @spec_dirs

  names = gem_names

  names.each do |name|
    found =
      if options[:show_install_dir]
        gem_install_dir name
      else
        gem_contents name
      end

    terminate_interaction 1 unless found or names.length > 1
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 84

def files_in(spec)
  if spec.default_gem?
    files_in_default_gem spec
  else
    files_in_gem spec
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 103

def files_in_default_gem(spec)
  spec.files.map do |file|
    case file
    when /\A#{spec.bindir}\//
      # $' is POSTMATCH
      [RbConfig::CONFIG['bindir'], $']
    when /\.so\z/
      [RbConfig::CONFIG['archdir'], file]
    else
      [RbConfig::CONFIG['rubylibdir'], file]
    end
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 92

def files_in_gem(spec)
  gem_path  = spec.full_gem_path
  extra     = "/{#{spec.require_paths.join ','}}" if options[:lib_only]
  glob      = "#{gem_path}#{extra}/**/*"
  prefix_re = /#{Regexp.escape(gem_path)}\//

  Dir[glob].map do |file|
    [gem_path, file.sub(prefix_re, "")]
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 117

def gem_contents(name)
  spec = spec_for name

  return false unless spec

  files = files_in spec

  show_files files

  true
end

# File 'lib/rubygems/commands/contents_command.rb', line 129

def gem_install_dir(name)
  spec = spec_for name

  return false unless spec

  say spec.gem_dir

  true
end

# File 'lib/rubygems/commands/contents_command.rb', line 139

def gem_names # :nodoc:
  if options[:all]
    Gem::Specification.map(&:name)
  else
    get_all_gem_names
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 147

def path_description(spec_dirs) # :nodoc:
  if spec_dirs.empty?
    "default gem paths"
  else
    "specified path"
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 155

def show_files(files)
  files.sort.each do |prefix, basename|
    absolute_path = File.join(prefix, basename)
    next if File.directory? absolute_path

    if options[:prefix]
      say absolute_path
    else
      say basename
    end
  end
end

# File 'lib/rubygems/commands/contents_command.rb', line 168

def spec_for(name)
  spec = Gem::Specification.find_all_by_name(name, @version).first

  return spec if spec

  say "Unable to find gem '#{name}' in #{@path_kind}"

  if Gem.configuration.verbose
    say "\nDirectories searched:"
    @spec_dirs.sort.each {|dir| say dir }
  end

  return nil
end

# File 'lib/rubygems/commands/contents_command.rb', line 183

def specification_directories # :nodoc:
  options[:specdirs].map do |i|
    [i, File.join(i, "specifications")]
  end.flatten
end

# File 'lib/rubygems/commands/contents_command.rb', line 61

def usage # :nodoc:
  "#{program_name} GEMNAME [GEMNAME ...]"
end