Gem::PathSupport

Class

Gem::PathSupport facilitates the GEM_HOME and GEM_PATH environment settings to the rest of RubyGems.

Attributes

home

Read

The default system path for managing Gems.

path

Read

Array of paths to search for Gems.

Class Methods

new(env)

lib/rubygems/path_support.rb View on GitHub

          
            # File tmp/rubies/ruby-2.4.10/lib/rubygems/path_support.rb, line 25
def initialize(env)
  @home     = env["GEM_HOME"] || Gem.default_dir

  if File::ALT_SEPARATOR then
    @home   = @home.gsub(File::ALT_SEPARATOR, File::SEPARATOR)
  end

  @path = split_gem_path env["GEM_PATH"], @home

  @spec_cache_dir = env["GEM_SPEC_CACHE"] || Gem.default_spec_cache_dir

  @spec_cache_dir = @spec_cache_dir.dup.untaint
end

Constructor. Takes a single argument which is to be treated like a hashtable, or defaults to ENV, the system environment.

Instance Methods

default_path

lib/rubygems/path_support.rb View on GitHub

          
            # File tmp/rubies/ruby-2.4.10/lib/rubygems/path_support.rb, line 72
def default_path
  gem_path = Gem.default_path + [@home]

  if defined?(APPLE_GEM_HOME)
    gem_path << APPLE_GEM_HOME
  end
  gem_path
end

Return the default Gem path

split_gem_path(gpaths, home)

lib/rubygems/path_support.rb View on GitHub

          
            # File tmp/rubies/ruby-2.4.10/lib/rubygems/path_support.rb, line 44
def split_gem_path gpaths, home
  # FIX: it should be [home, *path], not [*path, home]

  gem_path = []

  if gpaths
    gem_path = gpaths.split(Gem.path_separator)
    # Handle the path_separator being set to a regexp, which will cause
    # end_with? to error
    if gpaths =~ /#{Gem.path_separator}\z/
      gem_path += default_path
    end

    if File::ALT_SEPARATOR then
      gem_path.map! do |this_path|
        this_path.gsub File::ALT_SEPARATOR, File::SEPARATOR
      end
    end

    gem_path << home
  else
    gem_path = default_path
  end

  gem_path.uniq
end

Split the Gem search path (as reported by Gem.path).