From: Luis Lavena <luislavena@...>
Date: 2011-01-07T03:31:27+09:00
Subject: Re: Execute Ruby code after Gem is installed

On Jan 6, 1:36 am, Bryan Richardson <btrichard...@gmail.com> wrote:
> Hello All,
>
> Can Gem.post_install hooks be used in this case, or should I use the
> extensions attribute of a gemspec file to identify code to be executed
> after my gem is installed?

No, post_install display a message, it doesn't execute code due the
insecure nature of executing code from untrusted sources.

But...

> If post_install hooks can be used, where should the hooks be defined?
>
> If the extensions attribute can be used, can a .rb file added to the
> extensions attribute simply contain random Ruby code, or does it have to
> be extconf.rb-style Ruby code in it?
>

You can use extconf.rb (Ruby Extensions) in the gem specification to
generate the required files for your gem to work.

Pangolin gem used to do that:

https://github.com/iconara/pangolin/blob/master/Rakefile#L8-26

But instead of using extconf.rb now it uses a Rakefile that is
executed as extension:

https://github.com/iconara/pangolin/blob/master/pangolin.gemspec#L15

Hope that helps you.
--
Luis Lavena