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path: root/lib/rbot/rbotconfig.rb
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module Irc
  module Config
    @@datadir = nil

    # first try for the default path to the data dir    
    defaultdir = File.expand_path(File.dirname($0) + '/../data')

    if File.directory? "#{defaultdir}/rbot"
      @@datadir = "#{defaultdir}/rbot"
    end
    
    # setup pkg-based configuration - i.e. where were we installed to, where
    # are our data files, etc.
    if @@datadir.nil?
      begin
        debug "trying to load rubygems"
        require 'rubygems'
        debug "loaded rubygems, looking for rbot-#$version"
        if $version =~ /(.*)-svn\Z/
          version = $1
        else
          version = $version
        end
        gemname, gem = Gem.source_index.find{|name, spec| spec.name == 'rbot' && spec.version.version == version}
        debug "got gem #{gem}"
        if gem && path = gem.full_gem_path
          debug "installed via rubygems to #{path}"
          @@datadir = "#{path}/data/rbot"
        else
          debug "not installed via rubygems"
        end
      rescue LoadError,NameError,NoMethodError
        debug "no rubygems installed"
      end
    end

    if @@datadir.nil?
      begin
        require 'rbot/pkgconfig'
        @@datadir = PKGConfig::DATADIR
      rescue LoadError
        puts "fatal - no way to determine data dir"
        exit 2
      end
    end
    
    def Config.datadir
      @@datadir
    end
  end
end