From: Jeff Pritchard <jp@...>
Date: 2006-06-13T16:39:03+09:00
Subject: Logger and file permissions

Ruby and linux Nuby question about getting Logger library to work.

I've got a simple ruby script that is set up as the receptor of mail to 
a particular address on my server (via postfix).  This script is trying 
to use Logger to write a log file.  I'm trying to put the log file in a 
subdirectory of the html directory (in other words, far removed from 
where the ruby script lives).  I have tried to set up a group that 
includes ruby, the script, and the logger library as users and have set 
the group of the destination directory to that group, and set up 
permissions on that dir to 775.  I continue to get the following error 
in the mail admin bounce message

Command died with status 1:
    "/usr/local/bin/rantilizer.rb". Command output:
    /usr/local/lib/ruby/1.8/logger.rb:541:in `initialize': Permission 
denied -
    /home/[my domain directory here]/www/html/rants/myLog.log 
(Errno::EACCES)  from
    /usr/local/lib/ruby/1.8/logger.rb:541:in `open'  from
    /usr/local/lib/ruby/1.8/logger.rb:541:in `create_logfile'  from
    /usr/local/lib/ruby/1.8/logger.rb:536:in `open_logfile'  from
    /usr/local/lib/ruby/1.8/logger.rb:497:in `initialize'  from
    /usr/local/lib/ruby/1.8/logger.rb:256:in `new'  from
    /usr/local/lib/ruby/1.8/logger.rb:256:in `initialize'  from
    /usr/local/bin/rantilizer.rb:5:in `new'  from
    /usr/local/bin/rantilizer.rb:5

This is on a REHL4 linux box.  When I temporarily set the permissions of 
the destination directory to 777, it all works just fine, but obviously 
I don't want to leave the permissions that way.

What is the right way to allow focused write permission to a ruby script 
and its libraries?  Am I on the right track but need to add some more 
things to the group?

thanks,
jp

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