run gem installed with rvm_gem?

[maxgalbu]

I have this code to install a gem I copied in /tmp/mailcatcher.gem

rvm_gem { 'mailcatcher':
    name            => 'mailcatcher',
    source          => '/tmp/mailcatcher.gem',
    ruby_version    => 'ruby-1.9.3-p547',
    ensure          => latest,
    require         => [
        File['/tmp/mailcatcher.gem'], 
        Rvm_system_ruby['ruby-1.9.3-p547']
    ],
}

How can i run the installed gem script afterwards?

If i do this, it fails with "could not find command mailcatcher":

exec { 'start mailcatcher':
    command         => "mailcatcher --http-ip=0.0.0.0",
    require         => Rvm_gem['mailcatcher'],
}

I need something to refresh the env variables, or something to get the new installed gem path.

EDIT: I could hardcode the new path, like /usr/local/rvm/ruby-1.9.3-p547/bin/ but there must be a better way

[maxgalbu]

https://groups.google.com/forum/#!topic/puppet-users/TtLbPkvcu2A