Re: [PATCH 2/4] emacs: Add 'guix-devel-download-package-source'.

[ludo@gnu.org (Ludovic Courtès)]

Alex Kost <alezost@gmail.com> skribis:

> Ludovic Courtès (2015-10-08 14:46 +0300) wrote:
>
>> Alex Kost <alezost@gmail.com> skribis:
>>
>>> Ludovic Courtès (2015-10-08 01:10 +0300) wrote:
>>>
>>> [...]
>>>> Wouldn’t the explanation in the manual of how to use this be relatively
>>>> complex?  That’s a good benchmark.
>>>
>>> As I see it, it is not complex:
>>>
>>> «Download a source of the package defined by the current variable
>>> definition and print its SHA256 hash.  This command has the same meaning
>>> as running @code{guix download} on the package source (@pxref{Invoking
>>> guix download})»
>>
>> Hmm OK.  (Is it really “current variable definition”, or rather
>> “‘origin’ form at point”?)
>
> As I said before it's the same as "C-c . b" is used for downloading the
> package source, i.e. it is performed "on the current variable
> definition".  It is not possible to make it "on origin at point",
> because most of the times it has a reference to 'version' ('name'):
>
> (origin
>   ...
>   (uri (string-append "http://..." version ".tar.gz")))
>
> and 'version' is known only for the whole package, not for the 'origin'.

Oh right.  Thanks for bearing with me!

Ludo’.