class Gem::PathSupport
Gem::PathSupport
facilitates the GEM_HOME and GEM_PATH environment settings to the rest of RubyGems.
Attributes
The default system path for managing Gems.
Public Class Methods
Source
# File lib/rubygems/path_support.rb, line 26 def initialize(env) @home = normalize_home_dir(env["GEM_HOME"] || Gem.default_dir) @path = split_gem_path env["GEM_PATH"], @home @spec_cache_dir = env["GEM_SPEC_CACHE"] || Gem.default_spec_cache_dir end
Constructor. Takes a single argument which is to be treated like a hashtable, or defaults to ENV
, the system environment.
Private Instance Methods
Source
# File lib/rubygems/path_support.rb, line 74 def default_path Gem.default_path + [@home] end
Return the default Gem path
Source
# File lib/rubygems/path_support.rb, line 78 def expand(path) if File.directory?(path) File.realpath(path) else path end end
Source
# File lib/rubygems/path_support.rb, line 35 def normalize_home_dir(home) if File::ALT_SEPARATOR home = home.gsub(File::ALT_SEPARATOR, File::SEPARATOR) end expand(home) end
Source
# File lib/rubygems/path_support.rb, line 46 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 /#{Gem.path_separator}\z/.match?(gpaths) gem_path += default_path end if File::ALT_SEPARATOR 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.map {|path| expand(path) }.uniq end
Split the Gem search path (as reported by Gem.path
).