class Gem::ConfigFile

Gem::ConfigFile RubyGems options and gem command options from gemrc.

gemrc is a YAML file that uses strings to match gem command arguments and symbols to match RubyGems options.

Gem command arguments use a String key that matches the command name and allow you to specify default arguments:

install: --no-rdoc --no-ri
update: --no-rdoc --no-ri

You can use gem: to set default arguments for all commands.

RubyGems options use symbol keys. Valid options are:

:backtrace

See backtrace

:sources

Sets Gem::sources

:verbose

See verbose

:concurrent_downloads

See concurrent_downloads

gemrc files may exist in various locations and are read and merged in the following order:

Constants

DEFAULT_BACKTRACE
DEFAULT_BULK_THRESHOLD
DEFAULT_CERT_EXPIRATION_LENGTH_DAYS
DEFAULT_CONCURRENT_DOWNLOADS
DEFAULT_INSTALL_EXTENSION_IN_LIB

TODO: Use false as default value for this option in RubyGems 4.0

DEFAULT_IPV4_FALLBACK_ENABLED
DEFAULT_UPDATE_SOURCES
DEFAULT_VERBOSITY
OPERATING_SYSTEM_DEFAULTS

For Ruby packagers to set configuration defaults. Set in rubygems/defaults/operating_system.rb

PLATFORM_DEFAULTS

For Ruby implementers to set configuration defaults. Set in rubygems/defaults/#{RUBY_ENGINE}.rb

SYSTEM_WIDE_CONFIG_FILE

Attributes

args [R]

List of arguments supplied to the config file object.

backtrace [W]

True if we print backtraces on errors.

bulk_threshold [RW]

Bulk threshold value. If the number of missing gems are above this threshold value, then a bulk download technique is used. (deprecated)

cert_expiration_length_days [RW]

Expiration length to sign a certificate

concurrent_downloads [RW]

Number of gem downloads that should be performed concurrently.

disable_default_gem_server [RW]

True if we want to force specification of gem server when pushing a gem

hash [R]
home [RW]

Where to install gems (deprecated)

install_extension_in_lib [RW]

Install extensions into lib as well as into the extension directory.

ipv4_fallback_enabled [RW]

Experimental ==

Fallback to IPv4 when IPv6 is not reachable or slow (default: false)

path [RW]

Where to look for gems (deprecated)

sources [RW]

sources to look for gems

ssl_ca_cert [RW]

Path name of directory or file of openssl CA certificate, used for remote https connection

ssl_client_cert [R]

Path name of directory or file of openssl client certificate, used for remote https connection with client authentication

ssl_verify_mode [R]

openssl verify mode value, used for remote https connection

update_sources [RW]

True if we want to update the SourceInfoCache every time, false otherwise

verbose [RW]

Verbose level of output:

  • false – No output

  • true – Normal output

  • :loud – Extra output

Public Class Methods

deep_transform_config_keys! (config)
# File lib/rubygems/config_file.rb, line 563
def self.deep_transform_config_keys!(config)
  config.transform_keys! do |k|
    if k.match?(/\A:(.*)\Z/)
      k[1..-1].to_sym
    elsif k.include?("__") || k.match?(%r{/\Z})
      if k.is_a?(Symbol)
        k.to_s.gsub(/__/,".").gsub(%r{/\Z}, "").to_sym
      else
        k.dup.gsub(/__/,".").gsub(%r{/\Z}, "")
      end
    else
      k
    end
  end

  config.transform_values! do |v|
    if v.is_a?(String)
      if v.match?(/\A:(.*)\Z/)
        v[1..-1].to_sym
      elsif v.match?(/\A[+-]?\d+\Z/)
        v.to_i
      elsif v.match?(/\Atrue|false\Z/)
        v == "true"
      elsif v.empty?
        nil
      else
        v
      end
    elsif v.empty?
      nil
    elsif v.is_a?(Hash)
      deep_transform_config_keys!(v)
    else
      v
    end
  end

  config
end
dump_with_rubygems_yaml (content)
# File lib/rubygems/config_file.rb, line 545
def self.dump_with_rubygems_yaml(content)
  content.transform_keys! do |k|
    k.is_a?(Symbol) ? ":#{k}" : k
  end

  require_relative "yaml_serializer"
  Gem::YAMLSerializer.dump(content)
end
load_with_rubygems_config_hash (yaml)
# File lib/rubygems/config_file.rb, line 554
def self.load_with_rubygems_config_hash(yaml)
  require_relative "yaml_serializer"

  content = Gem::YAMLSerializer.load(yaml)
  deep_transform_config_keys!(content)
end
new (args)

Create the config file object. args is the list of arguments from the command line.

The following command line options are handled early here rather than later at the time most command options are processed.

--config-file, --config-file==NAME

Obviously these need to be handled by the ConfigFile object to ensure we get the right config file.

--backtrace

Backtrace needs to be turned on early so that errors before normal option parsing can be properly handled.

--debug

Enable Ruby level debug messages. Handled early for the same reason as –backtrace.

# File lib/rubygems/config_file.rb, line 184
def initialize(args)
  set_config_file_name(args)

  @backtrace = DEFAULT_BACKTRACE
  @bulk_threshold = DEFAULT_BULK_THRESHOLD
  @verbose = DEFAULT_VERBOSITY
  @update_sources = DEFAULT_UPDATE_SOURCES
  @concurrent_downloads = DEFAULT_CONCURRENT_DOWNLOADS
  @cert_expiration_length_days = DEFAULT_CERT_EXPIRATION_LENGTH_DAYS
  @install_extension_in_lib = DEFAULT_INSTALL_EXTENSION_IN_LIB
  @ipv4_fallback_enabled = ENV["IPV4_FALLBACK_ENABLED"] == "true" || DEFAULT_IPV4_FALLBACK_ENABLED

  operating_system_config = Marshal.load Marshal.dump(OPERATING_SYSTEM_DEFAULTS)
  platform_config = Marshal.load Marshal.dump(PLATFORM_DEFAULTS)
  system_config = load_file SYSTEM_WIDE_CONFIG_FILE
  user_config = load_file config_file_name

  environment_config = (ENV["GEMRC"] || "").
    split(File::PATH_SEPARATOR).inject({}) do |result, file|
      result.merge load_file file
    end

  @hash = operating_system_config.merge platform_config
  unless args.index "--norc"
    @hash = @hash.merge system_config
    @hash = @hash.merge user_config
    @hash = @hash.merge environment_config
  end

  @hash.transform_keys! do |k|
    # gemhome and gempath are not working with symbol keys
    if %w[backtrace bulk_threshold verbose update_sources cert_expiration_length_days
          install_extension_in_lib ipv4_fallback_enabled sources disable_default_gem_server
          ssl_verify_mode ssl_ca_cert ssl_client_cert].include?(k)
      k.to_sym
    else
      k
    end
  end

  # HACK: these override command-line args, which is bad
  @backtrace                   = @hash[:backtrace]                   if @hash.key? :backtrace
  @bulk_threshold              = @hash[:bulk_threshold]              if @hash.key? :bulk_threshold
  @verbose                     = @hash[:verbose]                     if @hash.key? :verbose
  @update_sources              = @hash[:update_sources]              if @hash.key? :update_sources
  # TODO: We should handle concurrent_downloads same as other options
  @cert_expiration_length_days = @hash[:cert_expiration_length_days] if @hash.key? :cert_expiration_length_days
  @install_extension_in_lib    = @hash[:install_extension_in_lib]    if @hash.key? :install_extension_in_lib
  @ipv4_fallback_enabled       = @hash[:ipv4_fallback_enabled]       if @hash.key? :ipv4_fallback_enabled

  @home                        = @hash[:gemhome]                     if @hash.key? :gemhome
  @path                        = @hash[:gempath]                     if @hash.key? :gempath
  @sources                     = @hash[:sources]                     if @hash.key? :sources
  @disable_default_gem_server  = @hash[:disable_default_gem_server]  if @hash.key? :disable_default_gem_server
  @ssl_verify_mode             = @hash[:ssl_verify_mode]             if @hash.key? :ssl_verify_mode
  @ssl_ca_cert                 = @hash[:ssl_ca_cert]                 if @hash.key? :ssl_ca_cert
  @ssl_client_cert             = @hash[:ssl_client_cert]             if @hash.key? :ssl_client_cert

  @api_keys         = nil
  @rubygems_api_key = nil

  handle_arguments args
end

Public Instance Methods

[] (key)

Return the configuration information for key.

# File lib/rubygems/config_file.rb, line 524
def [](key)
  @hash[key] || @hash[key.to_s]
end
[]= (key, value)

Set configuration option key to value.

# File lib/rubygems/config_file.rb, line 529
def []=(key, value)
  @hash[key] = value
end
api_keys ()

Hash of RubyGems.org and alternate API keys

# File lib/rubygems/config_file.rb, line 251
def api_keys
  load_api_keys unless @api_keys

  @api_keys
end
backtrace ()

True if the backtrace option has been specified, or debug is on.

# File lib/rubygems/config_file.rb, line 388
def backtrace
  @backtrace || $DEBUG
end
check_credentials_permissions ()

Checks the permissions of the credentials file. If they are not 0600 an error message is displayed and RubyGems aborts.

# File lib/rubygems/config_file.rb, line 261
  def check_credentials_permissions
    return if Gem.win_platform? # windows doesn't write 0600 as 0600
    return unless File.exist? credentials_path

    existing_permissions = File.stat(credentials_path).mode & 0o777

    return if existing_permissions == 0o600

    alert_error <<-ERROR
Your gem push credentials file located at:

\t#{credentials_path}

has file permissions of 0#{existing_permissions.to_s 8} but 0600 is required.

To fix this error run:

\tchmod 0600 #{credentials_path}

You should reset your credentials at:

\thttps://rubygems.org/profile/edit

if you believe they were disclosed to a third party.
    ERROR

    terminate_interaction 1
  end
config_file_name ()

The name of the configuration file.

# File lib/rubygems/config_file.rb, line 407
def config_file_name
  @config_file_name || Gem.config_file
end
credentials_path ()

Location of RubyGems.org credentials

# File lib/rubygems/config_file.rb, line 293
def credentials_path
  credentials = File.join Gem.user_home, ".gem", "credentials"
  if File.exist? credentials
    credentials
  else
    File.join Gem.data_home, "gem", "credentials"
  end
end
each () { |:update_sources, update_sources| ... }

Delegates to @hash

# File lib/rubygems/config_file.rb, line 431
def each(&block)
  hash = @hash.dup
  hash.delete :update_sources
  hash.delete :verbose
  hash.delete :backtrace
  hash.delete :bulk_threshold

  yield :update_sources, @update_sources
  yield :verbose, @verbose
  yield :backtrace, @backtrace
  yield :bulk_threshold, @bulk_threshold

  yield "config_file_name", @config_file_name if @config_file_name

  hash.each(&block)
end
handle_arguments (arg_list)

Handle the command arguments.

# File lib/rubygems/config_file.rb, line 449
def handle_arguments(arg_list)
  @args = []

  arg_list.each do |arg|
    case arg
    when /^--(backtrace|traceback)$/ then
      @backtrace = true
    when /^--debug$/ then
      $DEBUG = true

      warn "NOTE:  Debugging mode prints all exceptions even when rescued"
    else
      @args << arg
    end
  end
end
last_update_check ()

Reads time of last update check from state file

# File lib/rubygems/config_file.rb, line 417
def last_update_check
  if File.readable?(state_file_name)
    File.read(state_file_name).to_i
  else
    0
  end
end
last_update_check= (timestamp)

Writes time of last update check to state file

# File lib/rubygems/config_file.rb, line 426
def last_update_check=(timestamp)
  File.write(state_file_name, timestamp.to_s) if state_file_writable?
end
load_api_keys ()
# File lib/rubygems/config_file.rb, line 302
def load_api_keys
  check_credentials_permissions

  @api_keys = if File.exist? credentials_path
    load_file(credentials_path)
  else
    @hash
  end

  if @api_keys.key? :rubygems_api_key
    @rubygems_api_key    = @api_keys[:rubygems_api_key]
    @api_keys[:rubygems] = @api_keys.delete :rubygems_api_key unless
      @api_keys.key? :rubygems
  end
end
load_file (filename)
# File lib/rubygems/config_file.rb, line 365
def load_file(filename)
  yaml_errors = [ArgumentError]

  return {} unless filename && !filename.empty? && File.exist?(filename)

  begin
    config = self.class.load_with_rubygems_config_hash(File.read(filename))
    if config.keys.any? {|k| k.to_s.gsub(%r{https?:\/\/}, "").include?(": ") }
      warn "Failed to load #{filename} because it doesn't contain valid YAML hash"
      return {}
    else
      return config
    end
  rescue *yaml_errors => e
    warn "Failed to load #{filename}, #{e}"
  rescue Errno::EACCES
    warn "Failed to load #{filename} due to permissions problem."
  end

  {}
end
really_verbose ()

Really verbose mode gives you extra output.

# File lib/rubygems/config_file.rb, line 467
def really_verbose
  case verbose
  when true, false, nil then
    false
  else
    true
  end
end
rubygems_api_key ()

Returns the RubyGems.org API key

# File lib/rubygems/config_file.rb, line 321
def rubygems_api_key
  load_api_keys unless @rubygems_api_key

  @rubygems_api_key
end
rubygems_api_key= (api_key)

Sets the RubyGems.org API key to api_key

# File lib/rubygems/config_file.rb, line 330
def rubygems_api_key=(api_key)
  set_api_key :rubygems_api_key, api_key

  @rubygems_api_key = api_key
end
set_api_key (host, api_key)

Set a specific host’s API key to api_key

# File lib/rubygems/config_file.rb, line 339
def set_api_key(host, api_key)
  check_credentials_permissions

  config = load_file(credentials_path).merge(host => api_key)

  dirname = File.dirname credentials_path
  require "fileutils"
  FileUtils.mkdir_p(dirname)

  permissions = 0o600 & (~File.umask)
  File.open(credentials_path, "w", permissions) do |f|
    f.write self.class.dump_with_rubygems_yaml(config)
  end

  load_api_keys # reload
end
state_file_name ()

The name of the state file.

# File lib/rubygems/config_file.rb, line 412
def state_file_name
  Gem.state_file
end
state_file_writable? ()

Check state file is writable. Creates empty file if not present to ensure we can write to it.

# File lib/rubygems/config_file.rb, line 393
def state_file_writable?
  if File.exist?(state_file_name)
    File.writable?(state_file_name)
  else
    require "fileutils"
    FileUtils.mkdir_p File.dirname(state_file_name)
    File.open(state_file_name, "w") {}
    true
  end
rescue Errno::EACCES
  false
end
unset_api_key! ()

Remove the +~/.gem/credentials+ file to clear all the current sessions.

# File lib/rubygems/config_file.rb, line 359
def unset_api_key!
  return false unless File.exist?(credentials_path)

  File.delete(credentials_path)
end
write ()

Writes out this config file, replacing its source.

# File lib/rubygems/config_file.rb, line 514
def write
  require "fileutils"
  FileUtils.mkdir_p File.dirname(config_file_name)

  File.open config_file_name, "w" do |io|
    io.write to_yaml
  end
end