class Gem::Commands::YankCommand

# File lib/rubygems/commands/yank_command.rb, line 31
def initialize
  super 'yank', 'Remove a pushed gem from the index'

  add_version_option("remove")
  add_platform_option("remove")
  add_otp_option

  add_option('--host HOST',
             'Yank from another gemcutter-compatible host',
             '  (e.g. https://rubygems.org)') do |value, options|
    options[:host] = value
  end

  add_key_option
  @host = nil
end

# File lib/rubygems/commands/yank_command.rb, line 48
def execute
  @host = options[:host]

  sign_in @host

  version   = get_version_from_requirements(options[:version])
  platform  = get_platform_from_requirements(options)

  if version
    yank_gem(version, platform)
  else
    say "A version argument is required: #{usage}"
    terminate_interaction
  end
end

# File lib/rubygems/commands/yank_command.rb, line 64
def yank_gem(version, platform)
  say "Yanking gem from #{self.host}..."
  args = [:delete, version, platform, "api/v1/gems/yank"]
  response = yank_api_request(*args)

  say response.body
end

# File lib/rubygems/commands/yank_command.rb, line 97
def get_platform_from_requirements(requirements)
  Gem.platforms[1].to_s if requirements.key? :added_platform
end

# File lib/rubygems/commands/yank_command.rb, line 91
def get_version_from_requirements(requirements)
  requirements.requirements.first[1].version
rescue
  nil
end

# File lib/rubygems/commands/yank_command.rb, line 74
def yank_api_request(method, version, platform, api)
  name = get_one_gem_name
  response = rubygems_api_request(method, api, host) do |request|
    request.add_field("Authorization", api_key)
    request.add_field("OTP", options[:otp]) if options[:otp]

    data = {
      'gem_name' => name,
      'version' => version,
    }
    data['platform'] = platform if platform

    request.set_form_data data
  end
  response
end