Class: Gem::Commands::DirCommand

Inherits:
Gem::Command
  • Object
show all
Includes:
VersionOption
Defined in:
lib/rubygems/commands/dir_command.rb

Overview

OpenCommand will open a gem’s source path

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DirCommand

Returns a new instance of DirCommand.



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# File 'lib/rubygems/commands/dir_command.rb', line 11

def initialize
  super 'dir', "Prints the install directory of the selected gem", 
    :command => nil, 
    :version=>  Gem::Requirement.default,
    :latest=>   false
  
  add_option('-l', '--latest',
             'If there are multiple versions, open the latest') do |value, options|
    options[:latest] = true
  end
  
  add_version_option
end

Instance Method Details

#arguments ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/dir_command.rb', line 25

def arguments # :nodoc:
  "GEMNAME       gem to use"
end

#dir_gem(path) ⇒ Object 



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# File 'lib/rubygems/commands/dir_command.rb', line 55

def dir_gem(path)
  puts path
end

#execute ⇒ Object 



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# File 'lib/rubygems/commands/dir_command.rb', line 29

def execute
  name = get_one_gem_name
  path = get_path(name)
  
  dir_gem(path) if path
end

#get_path(name) ⇒ Object 



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# File 'lib/rubygems/commands/dir_command.rb', line 36

def get_path(name)
  dep = Gem::Dependency.new name, options[:version]
  specs = Gem.source_index.search dep
  
  if specs.length == 0
    say "Could not find '#{name}'"
    return nil
    
  elsif specs.length == 1 || options[:latest]
    return specs.last.full_gem_path
    
  else
    choices = specs.map{|s|"#{s.name} #{s.version}"}
    c,i = choose_from_list "Use which gem?", choices
    return specs[i].full_gem_path if i
    
  end
end