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-rw-r--r--lib/rdoc/ri/ri_paths.rb31
1 files changed, 30 insertions, 1 deletions
diff --git a/lib/rdoc/ri/ri_paths.rb b/lib/rdoc/ri/ri_paths.rb
index c5526201ea..4a67e44ba5 100644
--- a/lib/rdoc/ri/ri_paths.rb
+++ b/lib/rdoc/ri/ri_paths.rb
@@ -44,8 +44,37 @@ module RI
begin
require 'rubygems'
- Dir["#{Gem.path}/doc/*/ri"].each { |path| RI::Paths::PATH << path }
+ GEMDIRS = Dir["#{Gem.path}/doc/*/ri"]
+ GEMDIRS.each { |path| RI::Paths::PATH << path }
rescue LoadError
+ GEMDIRS = nil
end
+
+ # Returns the selected documentation directories as an Array, or PATH if no
+ # overriding directories were given.
+
+ def self.path(use_system, use_site, use_home, use_gems, *extra_dirs)
+ path = raw_path(use_system, use_site, use_home, use_gems, *extra_dirs)
+ return path.select { |path| File.directory? path }
+ end
+
+ # Returns the selected documentation directories including nonexistent
+ # directories. Used to print out what paths were searched if no ri was
+ # found.
+
+ def self.raw_path(use_system, use_site, use_home, use_gems, *extra_dirs)
+ return PATH unless use_system or use_site or use_home or use_gems or
+ not extra_dirs.empty?
+
+ path = []
+ path << extra_dirs unless extra_dirs.empty?
+ path << RI::Paths::SYSDIR if use_system
+ path << RI::Paths::SITEDIR if use_site
+ path << RI::Paths::HOMEDIR if use_home
+ path << RI::Paths::GEMDIRS if use_gems
+
+ return path.flatten.compact
+ end
+
end
end