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:

system wide (/etc/gemrc)
per user (~/.gemrc)
per environment (gemrc files listed in the GEMRC environment variable)

Constants

DEFAULT_BACKTRACE
DEFAULT_BULK_THRESHOLD
DEFAULT_CERT_EXPIRATION_LENGTH_DAYS
DEFAULT_CONCURRENT_DOWNLOADS
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)

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

new(args) click to toggle source

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 177
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
  @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.dup.tap(&Gem::UNTAINT)

  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

  # 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
  @home                        = @hash[:gemhome]                     if @hash.key? :gemhome
  @path                        = @hash[:gempath]                     if @hash.key? :gempath
  @update_sources              = @hash[:update_sources]              if @hash.key? :update_sources
  @verbose                     = @hash[:verbose]                     if @hash.key? :verbose
  @disable_default_gem_server  = @hash[:disable_default_gem_server]  if @hash.key? :disable_default_gem_server
  @sources                     = @hash[:sources]                     if @hash.key? :sources
  @cert_expiration_length_days = @hash[:cert_expiration_length_days] if @hash.key? :cert_expiration_length_days
  @ipv4_fallback_enabled       = @hash[:ipv4_fallback_enabled]       if @hash.key? :ipv4_fallback_enabled

  @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) click to toggle source

Return the configuration information for key.

# File lib/rubygems/config_file.rb, line 504
def [](key)
  @hash[key.to_s]
end

[]=(key, value) click to toggle source

Set configuration option key to value.

# File lib/rubygems/config_file.rb, line 509
def []=(key, value)
  @hash[key.to_s] = value
end

api_keys() click to toggle source

Hash of RubyGems.org and alternate API keys

# File lib/rubygems/config_file.rb, line 230
def api_keys
  load_api_keys unless @api_keys

  @api_keys
end

backtrace() click to toggle source

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

# File lib/rubygems/config_file.rb, line 371
def backtrace
  @backtrace || $DEBUG
end

check_credentials_permissions() click to toggle source

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 240
  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 & 0777

    return if existing_permissions == 0600

    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() click to toggle source

The name of the configuration file.

# File lib/rubygems/config_file.rb, line 390
def config_file_name
  @config_file_name || Gem.config_file
end

credentials_path() click to toggle source

Location of RubyGems.org credentials

# File lib/rubygems/config_file.rb, line 272
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| ... } click to toggle source

Delegates to @hash

# File lib/rubygems/config_file.rb, line 414
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) click to toggle source

Handle the command arguments.

# File lib/rubygems/config_file.rb, line 432
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() click to toggle source

Reads time of last update check from state file

# File lib/rubygems/config_file.rb, line 400
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) click to toggle source

Writes time of last update check to state file

# File lib/rubygems/config_file.rb, line 409
def last_update_check=(timestamp)
  File.write(state_file_name, timestamp.to_s) if state_file_writable?
end

load_api_keys() click to toggle source

# File lib/rubygems/config_file.rb, line 281
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) click to toggle source

# File lib/rubygems/config_file.rb, line 346
def load_file(filename)
  Gem.load_yaml

  yaml_errors = [ArgumentError]
  yaml_errors << Psych::SyntaxError if defined?(Psych::SyntaxError)

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

  begin
    content = Gem::SafeYAML.load(File.read(filename))
    unless content.kind_of? Hash
      warn "Failed to load #{filename} because it doesn't contain valid YAML hash"
      return {}
    end
    return content
  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() click to toggle source

Really verbose mode gives you extra output.

# File lib/rubygems/config_file.rb, line 450
def really_verbose
  case verbose
  when true, false, nil then
    false
  else
    true
  end
end

rubygems_api_key() click to toggle source

Returns the RubyGems.org API key

# File lib/rubygems/config_file.rb, line 300
def rubygems_api_key
  load_api_keys unless @rubygems_api_key

  @rubygems_api_key
end

rubygems_api_key=(api_key) click to toggle source

Sets the RubyGems.org API key to api_key

# File lib/rubygems/config_file.rb, line 309
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) click to toggle source

Set a specific host’s API key to api_key

# File lib/rubygems/config_file.rb, line 318
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)

  Gem.load_yaml

  permissions = 0600 & (~File.umask)
  File.open(credentials_path, "w", permissions) do |f|
    f.write config.to_yaml
  end

  load_api_keys # reload
end

state_file_name() click to toggle source

The name of the state file.

# File lib/rubygems/config_file.rb, line 395
def state_file_name
  Gem.state_file
end

state_file_writable?() click to toggle source

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 376
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!() click to toggle source

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

# File lib/rubygems/config_file.rb, line 340
def unset_api_key!
  return false unless File.exist?(credentials_path)

  File.delete(credentials_path)
end

write() click to toggle source

Writes out this config file, replacing its source.

# File lib/rubygems/config_file.rb, line 494
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

Private Instance Methods

set_config_file_name(args) click to toggle source

# File lib/rubygems/config_file.rb, line 527
def set_config_file_name(args)
  @config_file_name = ENV["GEMRC"]
  need_config_file_name = false

  args.each do |arg|
    if need_config_file_name
      @config_file_name = arg
      need_config_file_name = false
    elsif arg =~ /^--config-file=(.*)/
      @config_file_name = $1
    elsif arg =~ /^--config-file$/
      need_config_file_name = true
    end
  end
end