Better log rotation for Passenger

Touch the tmp/restart.txt file, when
rotatingthe log files. Otherwise, multiple
workers may try to rotate the log files
at the same time, with sub-optimal results.

Also, an aesthetic tweak to the url_generator.

config/environment.rb

@@ -59,6 +59,7 @@ require_dependency 'instiki_errors'
 
 #require 'jcode'
 require 'caching_stuff'
+require 'logging_stuff'
 
 #Additional Mime-types 
 mime_types = YAML.load_file(File.join(File.dirname(__FILE__), 'mime_types.yml'))

lib/logging_stuff.rb

@@ -0,0 +1,20 @@
+class Logger
+  class LogDevice
+
+  private
+    def shift_log_age
+      #For Passenger, restart the server when rotating log files.
+      FileUtils.touch Rails.root.join("tmp", "restart.txt") if defined?(PhusionPassenger)
+      (@shift_age-3).downto(0) do |i|
+        if FileTest.exist?("#{@filename}.#{i}")
+          File.rename("#{@filename}.#{i}", "#{@filename}.#{i+1}")
+        end
+      end
+      @dev.close
+      File.rename("#{@filename}", "#{@filename}.0")
+      @dev = create_logfile(@filename)
+      return true
+    end
+
+  end
+end

lib/url_generator.rb

@@ -177,7 +177,7 @@ class UrlGenerator < AbstractUrlGenerator
 
     def wikilink_for(mode, name, text, web_address)
       web = Web.find_by_address(web_address)
-      action = web.published? && !(web == @web && ![:publish, :s5].include?(mode) ) ? 'published' : 'show'
+      action = web.published? && (web != @web || [:publish, :s5].include?(mode) ) ? 'published' : 'show'
       href = @controller.url_for :controller => 'wiki', :web => web_address, :action => action, 
             :id => name, :only_path => true
       %{<a class="existingWikiWord" href="#{href}">#{text}</a>}