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112 lines
2.6 KiB
Ruby
112 lines
2.6 KiB
Ruby
require 'rdoc/ri'
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##
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# The directories where ri data lives.
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module RDoc::RI::Paths
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#:stopdoc:
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require 'rbconfig'
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version = RbConfig::CONFIG['ruby_version']
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base = File.join RbConfig::CONFIG['ridir'], version
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SYSDIR = File.join base, "system"
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SITEDIR = File.join base, "site"
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HOMEDIR = (File.expand_path('~/.rdoc') rescue nil)
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#:startdoc:
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@gemdirs = nil
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##
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# Iterates over each selected path yielding the directory and type.
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#
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# Yielded types:
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# :system:: Where Ruby's ri data is stored. Yielded when +system+ is
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# true
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# :site:: Where ri for installed libraries are stored. Yielded when
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# +site+ is true. Normally no ri data is stored here.
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# :home:: ~/.rdoc. Yielded when +home+ is true.
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# :gem:: ri data for an installed gem. Yielded when +gems+ is true.
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# :extra:: ri data directory from the command line. Yielded for each
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# entry in +extra_dirs+
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def self.each system, site, home, gems, *extra_dirs # :yields: directory, type
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extra_dirs.each do |dir|
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yield dir, :extra
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end
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yield SYSDIR, :system if system
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yield SITEDIR, :site if site
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yield HOMEDIR, :home if home and HOMEDIR
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gemdirs.each do |dir|
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yield dir, :gem
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end if gems
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nil
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end
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##
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# The latest installed gems' ri directories
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def self.gemdirs
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return @gemdirs if @gemdirs
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require 'rubygems' unless defined?(Gem)
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# HACK dup'd from Gem.latest_partials and friends
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all_paths = []
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all_paths = Gem.path.map do |dir|
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Dir[File.join(dir, 'doc', '*', 'ri')]
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end.flatten
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ri_paths = {}
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all_paths.each do |dir|
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base = File.basename File.dirname(dir)
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if base =~ /(.*)-((\d+\.)*\d+)/ then
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name, version = $1, $2
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ver = Gem::Version.new version
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if ri_paths[name].nil? or ver > ri_paths[name][0] then
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ri_paths[name] = [ver, dir]
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end
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end
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end
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@gemdirs = ri_paths.map { |k,v| v.last }.sort
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rescue LoadError
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@gemdirs = []
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end
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##
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# Returns existing directories from the selected documentation directories
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# as an Array.
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#
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# See also ::each
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def self.path(system, site, home, gems, *extra_dirs)
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path = raw_path system, site, home, gems, *extra_dirs
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path.select { |directory| File.directory? directory }
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end
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##
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# Returns selected documentation directories including nonexistent
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# directories.
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#
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# See also ::each
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def self.raw_path(system, site, home, gems, *extra_dirs)
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path = []
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each(system, site, home, gems, *extra_dirs) do |dir, type|
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path << dir
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end
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path.compact
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end
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end
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