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Name	Size	Permission
build_command.rb	859 B	-rw-r--r--
cert_command.rb	6.41 KB	-rw-r--r--
check_command.rb	2.01 KB	-rw-r--r--
cleanup_command.rb	3.82 KB	-rw-r--r--
contents_command.rb	3.12 KB	-rw-r--r--
dependency_command.rb	3.89 KB	-rw-r--r--
environment_command.rb	4.16 KB	-rw-r--r--
fetch_command.rb	1.49 KB	-rw-r--r--
generate_index_command.rb	2.52 KB	-rw-r--r--
help_command.rb	4.56 KB	-rw-r--r--
install_command.rb	5.45 KB	-rw-r--r--
list_command.rb	696 B	-rw-r--r--
lock_command.rb	2.67 KB	-rw-r--r--
mirror_command.rb	395 B	-rw-r--r--
outdated_command.rb	866 B	-rw-r--r--
owner_command.rb	1.9 KB	-rw-r--r--
pristine_command.rb	3.66 KB	-rw-r--r--
push_command.rb	2.02 KB	-rw-r--r--
query_command.rb	8.11 KB	-rw-r--r--
rdoc_command.rb	2.31 KB	-rw-r--r--
search_command.rb	616 B	-rw-r--r--
server_command.rb	2.35 KB	-rw-r--r--
setup_command.rb	12.94 KB	-rw-r--r--
sources_command.rb	3.62 KB	-rw-r--r--
specification_command.rb	2.93 KB	-rw-r--r--
stale_command.rb	704 B	-rw-r--r--
uninstall_command.rb	3.07 KB	-rw-r--r--
unpack_command.rb	4.06 KB	-rw-r--r--
update_command.rb	5.8 KB	-rw-r--r--
which_command.rb	1.87 KB	-rw-r--r--
yank_command.rb	2.4 KB	-rw-r--r--

Code Editor : dependency_command.rb

require 'rubygems/command'
require 'rubygems/local_remote_options'
require 'rubygems/version_option'

class Gem::Commands::DependencyCommand < Gem::Command

include Gem::LocalRemoteOptions
  include Gem::VersionOption

def initialize
    super 'dependency',
          'Show the dependencies of an installed gem',
          :version => Gem::Requirement.default, :domain => :local

add_version_option
    add_platform_option
    add_prerelease_option

add_option('-R', '--[no-]reverse-dependencies',
               'Include reverse dependencies in the output') do
      |value, options|
      options[:reverse_dependencies] = value
    end

add_option('-p', '--pipe',
               "Pipe Format (name --version ver)") do |value, options|
      options[:pipe_format] = value
    end

add_local_remote_options
  end

def arguments # :nodoc:
    "GEMNAME       name of gem to show dependencies for"
  end

def defaults_str # :nodoc:
    "--local --version '#{Gem::Requirement.default}' --no-reverse-dependencies"
  end

def usage # :nodoc:
    "#{program_name} GEMNAME"
  end

def execute
    if options[:reverse_dependencies] and remote? and not local? then
      alert_error 'Only reverse dependencies for local gems are supported.'
      terminate_interaction 1
    end

options[:args] << '' if options[:args].empty?

pattern = if options[:args].length == 1 and
                 options[:args].first =~ /\A\/(.*)\/(i)?\z/m then
                flags = $2 ? Regexp::IGNORECASE : nil
                Regexp.new $1, flags
              else
                /\A#{Regexp.union(*options[:args])}/
              end

# TODO: deprecate for real damnit
    dependency = Gem::Deprecate.skip_during {
      Gem::Dependency.new pattern, options[:version]
    }
    dependency.prerelease = options[:prerelease]

specs = []

specs.concat dependency.matching_specs if local?

if remote? and not options[:reverse_dependencies] then
      fetcher = Gem::SpecFetcher.fetcher

ss, _ = fetcher.spec_for_dependency dependency

ss.each { |s,o| specs << s }
    end

if specs.empty? then
      patterns = options[:args].join ','
      say "No gems found matching #{patterns} (#{options[:version]})" if
        Gem.configuration.verbose

terminate_interaction 1
    end

specs = specs.uniq.sort

reverse = Hash.new { |h, k| h[k] = [] }

if options[:reverse_dependencies] then
      specs.each do |spec|
        reverse[spec.full_name] = find_reverse_dependencies spec
      end
    end

if options[:pipe_format] then
      specs.each do |spec|
        unless spec.dependencies.empty?
          spec.dependencies.sort_by { |dep| dep.name }.each do |dep|
            say "#{dep.name} --version '#{dep.requirement}'"
          end
        end
      end
    else
      response = ''

specs.each do |spec|
        response << print_dependencies(spec)
        unless reverse[spec.full_name].empty? then
          response << "  Used by\n"
          reverse[spec.full_name].each do |sp, dep|
            response << "    #{sp} (#{dep})\n"
          end
        end
        response << "\n"
      end

say response
    end
  end

def print_dependencies(spec, level = 0)
    response = ''
    response << '  ' * level + "Gem #{spec.full_name}\n"
    unless spec.dependencies.empty? then
      spec.dependencies.sort_by { |dep| dep.name }.each do |dep|
        response << '  ' * level + "  #{dep}\n"
      end
    end
    response
  end

##
  # Returns an Array of [specification, dep] that are satisfied by +spec+.

def find_reverse_dependencies(spec)
    result = []

Gem::Specification.each do |sp|
      sp.dependencies.each do |dep|
        dep = Gem::Dependency.new(*dep) unless Gem::Dependency === dep

if spec.name == dep.name and
           dep.requirement.satisfied_by?(spec.version) then
          result << [sp.full_name, dep]
        end
      end
    end

result
  end

end

${this.title}

Code Editor : dependency_command.rb