From: Davertron <dabukun@...>
Date: 2009-03-16T21:47:43+09:00
Subject: Re: Daemons and Paths

On Mar 14, 6:33 pm, Michael Linfield <globyy3...@hotmail.com> wrote:
> Michael Linfield wrote:
> > I don't know if this is exactly what your looking for, but how about a
> > call to locate?
>
> > begin
> > #worker code here
>
> > rescue
> > path = %x[locate <filename>].chomp!
> > #the filename would be whatever the daemon is
> > #looking for - you take the error code from
> > #the daemon and pull the filename out of it
>
> > #Here we are going to take the path output
> > #then remove the last array element it's
> > #split by, aka the filename, so that u will
> > #have the directory
>
> > directory = path.split("/")
> > directory.pop
> > directory.join("/")
> > Dir.chdir(directory)
>
> > retry #retries the begin block
>
> > end
>
> My apologies, correct the line that says directory.join("/") to the
> following:
>
> directory = directory.join("/")
>
> Regards,
>
> - Mac
> --
> Posted viahttp://www.ruby-forum.com/.

Thanks Michael.  You're right, it's not exactly what I'm looking for,
but it would probably work.  I was looking more towards modifying my
RUBYPATH environment variable to get this work; something that doesn't
require putting in a bunch of special-case code inside of the source
itself, especially above all of my "require" statements.  I was
thinking of writing a "locate_and_require" statement with your
suggestions above if there really is no "right" way to do this.  I've
never written daemons before, so I don't really know how people
generally handle this, and perhaps my expectations are out-of-whack.
Anyway, I did find code that shows modifying of the $: variable inside
a script to add/change your ruby path; however, it doesn't look like
the changes survive daemonization.  I'll keep looking around and post
how I solved this once I get there.