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Edit File : environment_command.rb \| Size : 5.29 KB
# frozen_string_literal: true require_relative "../command" class Gem::Commands::EnvironmentCommand < Gem::Command def initialize super "environment", "Display information about the RubyGems environment" end def arguments # :nodoc: args = <<-EOF home display the path where gems are installed. Aliases: gemhome, gemdir, GEM_HOME path display path used to search for gems. Aliases: gempath, GEM_PATH user_gemhome display the path where gems are installed when `--user-install` is given. Aliases: user_gemdir version display the gem format version remotesources display the remote gem servers platform display the supported gem platforms <omitted> display everything EOF return args.gsub(/^\s+/, "") end def description # :nodoc: <<-EOF The environment command lets you query rubygems for its configuration for use in shell scripts or as a debugging aid. The RubyGems environment can be controlled through command line arguments, gemrc files, environment variables and built-in defaults. Command line argument defaults and some RubyGems defaults can be set in a ~/.gemrc file for individual users and a gemrc in the SYSTEM CONFIGURATION DIRECTORY for all users. These files are YAML files with the following YAML keys: :sources: A YAML array of remote gem repositories to install gems from :verbose: Verbosity of the gem command. false, true, and :really are the levels :update_sources: Enable/disable automatic updating of repository metadata :backtrace: Print backtrace when RubyGems encounters an error :gempath: The paths in which to look for gems :disable_default_gem_server: Force specification of gem server host on push <gem_command>: A string containing arguments for the specified gem command Example: :verbose: false install: --no-wrappers update: --no-wrappers :disable_default_gem_server: true RubyGems' default local repository can be overridden with the GEM_PATH and GEM_HOME environment variables. GEM_HOME sets the default repository to install into. GEM_PATH allows multiple local repositories to be searched for gems. If you are behind a proxy server, RubyGems uses the HTTP_PROXY, HTTP_PROXY_USER and HTTP_PROXY_PASS environment variables to discover the proxy server. If you would like to push gems to a private gem server the RUBYGEMS_HOST environment variable can be set to the URI for that server. If you are packaging RubyGems all of RubyGems' defaults are in lib/rubygems/defaults.rb. You may override these in lib/rubygems/defaults/operating_system.rb EOF end def usage # :nodoc: "#{program_name} [arg]" end def execute out = String.new arg = options[:args][0] out << case arg when /^version/ then Gem::VERSION when /^gemdir/, /^gemhome/, /^home/, /^GEM_HOME/ then Gem.dir when /^gempath/, /^path/, /^GEM_PATH/ then Gem.path.join(File::PATH_SEPARATOR) when /^user_gemdir/, /^user_gemhome/ then Gem.user_dir when /^remotesources/ then Gem.sources.to_a.join("\n") when /^platform/ then Gem.platforms.join(File::PATH_SEPARATOR) when nil then show_environment else raise Gem::CommandLineError, "Unknown environment option [#{arg}]" end say out true end def add_path(out, path) path.each do \|component\| out << " - #{component}\n" end end def show_environment # :nodoc: out = "RubyGems Environment:\n".dup out << " - RUBYGEMS VERSION: #{Gem::VERSION}\n" out << " - RUBY VERSION: #{RUBY_VERSION} (#{RUBY_RELEASE_DATE}" out << " patchlevel #{RUBY_PATCHLEVEL}" if defined? RUBY_PATCHLEVEL out << ") [#{RUBY_PLATFORM}]\n" out << " - INSTALLATION DIRECTORY: #{Gem.dir}\n" out << " - USER INSTALLATION DIRECTORY: #{Gem.user_dir}\n" out << " - RUBYGEMS PREFIX: #{Gem.prefix}\n" unless Gem.prefix.nil? out << " - RUBY EXECUTABLE: #{Gem.ruby}\n" out << " - GIT EXECUTABLE: #{git_path}\n" out << " - EXECUTABLE DIRECTORY: #{Gem.bindir}\n" out << " - SPEC CACHE DIRECTORY: #{Gem.spec_cache_dir}\n" out << " - SYSTEM CONFIGURATION DIRECTORY: #{Gem::ConfigFile::SYSTEM_CONFIG_PATH}\n" out << " - RUBYGEMS PLATFORMS:\n" Gem.platforms.each do \|platform\| out << " - #{platform}\n" end out << " - GEM PATHS:\n" out << " - #{Gem.dir}\n" gem_path = Gem.path.dup gem_path.delete Gem.dir add_path out, gem_path out << " - GEM CONFIGURATION:\n" Gem.configuration.each do \|name, value\| value = value.gsub(/./, "*") if name == "gemcutter_key" out << " - #{name.inspect} => #{value.inspect}\n" end out << " - REMOTE SOURCES:\n" Gem.sources.each do \|s\| out << " - #{s}\n" end out << " - SHELL PATH:\n" shell_path = ENV["PATH"].split(File::PATH_SEPARATOR) add_path out, shell_path out end private ## # Git binary path def git_path exts = ENV["PATHEXT"] ? ENV["PATHEXT"].split(";") : [""] ENV["PATH"].split(File::PATH_SEPARATOR).each do \|path\| exts.each do \|ext\| exe = File.join(path, "git#{ext}") return exe if File.executable?(exe) && !File.directory?(exe) end end return nil end end Back

Edit File : environment_command.rb | Size : 5.29 KB

# frozen_string_literal: true
require_relative "../command"

class Gem::Commands::EnvironmentCommand < Gem::Command
  def initialize
    super "environment", "Display information about the RubyGems environment"
  end

def arguments # :nodoc:
    args = <<-EOF
          home            display the path where gems are installed. Aliases: gemhome, gemdir, GEM_HOME
          path            display path used to search for gems. Aliases: gempath, GEM_PATH
          user_gemhome    display the path where gems are installed when `--user-install` is given. Aliases: user_gemdir
          version         display the gem format version
          remotesources   display the remote gem servers
          platform        display the supported gem platforms
          <omitted>       display everything
    EOF
    return args.gsub(/^\s+/, "")
  end

def description # :nodoc:
    <<-EOF
The environment command lets you query rubygems for its configuration for
use in shell scripts or as a debugging aid.

The RubyGems environment can be controlled through command line arguments,
gemrc files, environment variables and built-in defaults.

Command line argument defaults and some RubyGems defaults can be set in a
~/.gemrc file for individual users and a gemrc in the SYSTEM CONFIGURATION
DIRECTORY for all users. These files are YAML files with the following YAML
keys:

:sources: A YAML array of remote gem repositories to install gems from
  :verbose: Verbosity of the gem command. false, true, and :really are the
            levels
  :update_sources: Enable/disable automatic updating of repository metadata
  :backtrace: Print backtrace when RubyGems encounters an error
  :gempath: The paths in which to look for gems
  :disable_default_gem_server: Force specification of gem server host on push
  <gem_command>: A string containing arguments for the specified gem command

Example:

:verbose: false
  install: --no-wrappers
  update: --no-wrappers
  :disable_default_gem_server: true

RubyGems' default local repository can be overridden with the GEM_PATH and
GEM_HOME environment variables. GEM_HOME sets the default repository to
install into. GEM_PATH allows multiple local repositories to be searched for
gems.

If you are behind a proxy server, RubyGems uses the HTTP_PROXY,
HTTP_PROXY_USER and HTTP_PROXY_PASS environment variables to discover the
proxy server.

If you would like to push gems to a private gem server the RUBYGEMS_HOST
environment variable can be set to the URI for that server.

If you are packaging RubyGems all of RubyGems' defaults are in
lib/rubygems/defaults.rb.  You may override these in
lib/rubygems/defaults/operating_system.rb
    EOF
  end

def usage # :nodoc:
    "#{program_name} [arg]"
  end

def execute
    out = String.new
    arg = options[:args][0]
    out <<
      case arg
      when /^version/ then
        Gem::VERSION
      when /^gemdir/, /^gemhome/, /^home/, /^GEM_HOME/ then
        Gem.dir
      when /^gempath/, /^path/, /^GEM_PATH/ then
        Gem.path.join(File::PATH_SEPARATOR)
      when /^user_gemdir/, /^user_gemhome/ then
        Gem.user_dir
      when /^remotesources/ then
        Gem.sources.to_a.join("\n")
      when /^platform/ then
        Gem.platforms.join(File::PATH_SEPARATOR)
      when nil then
        show_environment
      else
        raise Gem::CommandLineError, "Unknown environment option [#{arg}]"
      end
    say out
    true
  end

def add_path(out, path)
    path.each do |component|
      out << "     - #{component}\n"
    end
  end

def show_environment # :nodoc:
    out = "RubyGems Environment:\n".dup

out << "  - RUBYGEMS VERSION: #{Gem::VERSION}\n"

out << "  - RUBY VERSION: #{RUBY_VERSION} (#{RUBY_RELEASE_DATE}"
    out << " patchlevel #{RUBY_PATCHLEVEL}" if defined? RUBY_PATCHLEVEL
    out << ") [#{RUBY_PLATFORM}]\n"

out << "  - INSTALLATION DIRECTORY: #{Gem.dir}\n"

out << "  - USER INSTALLATION DIRECTORY: #{Gem.user_dir}\n"

out << "  - RUBYGEMS PREFIX: #{Gem.prefix}\n" unless Gem.prefix.nil?

out << "  - RUBY EXECUTABLE: #{Gem.ruby}\n"

out << "  - GIT EXECUTABLE: #{git_path}\n"

out << "  - EXECUTABLE DIRECTORY: #{Gem.bindir}\n"

out << "  - SPEC CACHE DIRECTORY: #{Gem.spec_cache_dir}\n"

out << "  - SYSTEM CONFIGURATION DIRECTORY: #{Gem::ConfigFile::SYSTEM_CONFIG_PATH}\n"

out << "  - RUBYGEMS PLATFORMS:\n"
    Gem.platforms.each do |platform|
      out << "     - #{platform}\n"
    end

out << "  - GEM PATHS:\n"
    out << "     - #{Gem.dir}\n"

gem_path = Gem.path.dup
    gem_path.delete Gem.dir
    add_path out, gem_path

out << "  - GEM CONFIGURATION:\n"
    Gem.configuration.each do |name, value|
      value = value.gsub(/./, "*") if name == "gemcutter_key"
      out << "     - #{name.inspect} => #{value.inspect}\n"
    end

out << "  - REMOTE SOURCES:\n"
    Gem.sources.each do |s|
      out << "     - #{s}\n"
    end

out << "  - SHELL PATH:\n"

shell_path = ENV["PATH"].split(File::PATH_SEPARATOR)
    add_path out, shell_path

out
  end

private

##
  # Git binary path

def git_path
    exts = ENV["PATHEXT"] ? ENV["PATHEXT"].split(";") : [""]
    ENV["PATH"].split(File::PATH_SEPARATOR).each do |path|
      exts.each do |ext|
        exe = File.join(path, "git#{ext}")
        return exe if File.executable?(exe) && !File.directory?(exe)
      end
    end

return nil
  end
end

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