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# 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
credentials display the path where credentials are stored
display everything
EOF
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
: 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 /^credentials/, /^creds/ then
Gem.configuration.credentials_path
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} patchlevel #{RUBY_PATCHLEVEL}) [#{RUBY_PLATFORM}]\n"
out << " - INSTALLATION DIRECTORY: #{Gem.dir}\n"
out << " - USER INSTALLATION DIRECTORY: #{Gem.user_dir}\n"
out << " - CREDENTIALS FILE: #{Gem.configuration.credentials_path}\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
nil
end
end