Hello Frank,

> On 6 Dec 2020, at 14:57, Frank Mainz <frank(a)cybermainzel.de> wrote:
> 
> Hi folks,
> 
> as already written in the forum, I have ported my IPTraffic addon for
> IPFire.

You have come to the right place here. The forum is mainly a support forum.

> A few questions are still open. I hope you will help me.

Yes, absolutely.

But first from me: What is the IPTraffic add-on?

> The cronjob is okay. 
> Now I wonder if I should create the bash-installer as perl-script.

Why? I would prefer shell because we have a small library that we load for common functionality like starting a service, etc.

> I can't figure out the git-links. I see the code, but don't understand
> how it can help me.

Please explain the problem you are trying to solve and I hope I can help to come up with a solution.

> How to insert the code for the menu where?

There are files in config/menu. Have a look at the files beginning with EX-. Those are add-ons.

> How the language file should look like is clear, but how do I get it
> inserted in the system?

Have a look at lfs/squid-accounting. That script installs files from src/squid-accounting to /var/ipfire/addon-lang.

You can do the same and run /usr/local/bin/update-lang-cache in the install.sh script.

> Thanks in advance for your help.
> Frank

Let me know if this has helped.

Best,
-Michael