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Re: matlab-mode MELPA, link contact FAQ?

From: Clément Pit--Claudel
Subject: Re: matlab-mode MELPA, link contact FAQ?
Date: Fri, 15 Apr 2016 13:41:02 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

On 04/15/2016 01:02 PM, Uwe Brauer wrote:
>    > On 04/15/2016 11:10 AM, Uwe Brauer wrote:
>    > Not really; it's specific to the distribution part, which you don't
>    > care about. From the metadata in the headers (for single-file
>    > packages) or in …-pkg.el (for multi-file packages) MELPA will build a
>    > tar files that users download through package.el.
> Ok thanks.
> I am sorry to nag, but I find the lack of some manual frustrating.

No problem. Happy to help when I can. Looking at this a bit more, I think what 
I said earlier needs to be slightly amended. If you have a file whose name 
matches your package's name, if seems that MELPA will use its headers to 
generate a package description. Since you don't have a matlab-mode.el, though, 
MELPA doesn't know where to look.

You can just create a matlab-mode-pkg.el file, and it will grab information 
from there. I don't generally write these -pkg files by hand. Instead, I just 
use Cask (https://github.com/cask/cask) to generate them for me.

> If I understand correctly, all I have to do is  to provide a file
> matlab-pkg.el, then automatically the info string will be updated.

matlab-mode-pkg.el, right?

> But I am not sure about its contend. Looking up in packages I installed
> from MELPA (...) does not really help

You could take a look at 
https://github.com/emacs-helm/helm/blob/master/helm-pkg.el for an example. Here 
are other examples from my packages:


The docs of that define-package forms are here: 
 . Your confusion regarding version numbers is due to MELPA editing the pkg 
file when it packages your software. MELPA packages use a different versioning 
namespace based on the packaging date. IOW, when your package is finally built, 
MELPA will replace its real version number by the current date and time.

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