From: David Vallner <david@...>
Date: 2006-02-13T08:03:54+09:00
Subject: Re: Howto use rubyscript2exe to package some external application along with ruby

Dňa Nedeľa 12 Február 2006 23:53 Nuralanur@aol.com napísal:
> Dear all,
>
> I would like to distribute a Ruby application that calls
> an external  application.
> So far, I give the potential user the opportunity
> to enter or  change some Gnuplot code, which is
> sent to Gnuplot via Open3 and produces  some plot.
> Now, I would like to avoid asking the user to make
> sure he has  Gnuplot installed.
>
> 1.) How can I ensure that everything that I need from Gnuplot
> is  included in my application ? Is this done automatically
> by rubyscript2exe ?
> 2.) Can the Open3 syntax be used even if Gnuplot is  not
> installed on the system the new distributed file is run on -
> will  some file from the package created by rubyscript2exe
> (question 1) be  substituted for the missing installation of Gnuplot ?
>
> Thank you very much,
>
> Best regards,
>
> Axel

I have very, very strong doubts rubyscript2exe will detect and pack external 
applications. My wild guess is rubyscript2exe sort of dumps the state of the 
interpreter at the end of the execution of your script, with all dependencies 
loaded in memory.

Since Gnuplot is an external application not residing in the memory space of 
the interpreter, you're probably stuck with making sure Gnuplot is installed. 
You could also make an installer for your application and distribute Gnuplot 
with it.

Disclaimer: I might be completely wrong.

David Vallner