GNU bug report logs - #38769
[PATCH] import: Add importer for MELPA packages.

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From: Carlo Zancanaro <carlo <at> zancanaro.id.au>
To: 38769 <at> debbugs.gnu.org
Subject: [bug#38769] [PATCH] import: Add importer for MELPA packages.
Date: Sat, 28 Dec 2019 12:59:40 +1100

[Message part 1 (text/plain, inline)]

Hey Guix!

I have for a while wanted to write an importer for MELPA packages 
that reads from the MELPA recipe and constructs a Guix package. 
This is primarily because the ELPA importer uses source tarballs, 
which we can't rely on for MELPA because they remove old tarballs 
and upload new ones whenever they rebuild the package.

So, here is my importer!

Probably the most controversial decision here is to always import 
the current head that MELPA would build. This means that when you 
run "guix import melpa" it gives you a package definition that 
should correspond to what MELPA currently has. This may not 
correspond to a release of the package, so we cannot easily give 
it a version, and thus I put the current date into the version 
string.

I imagine it would be possible to combine this importer with the 
current ELPA one in some way, to use all the metadata provided by 
the ELPA importer, but then generate an origin based on the MELPA 
recipe, but that seemed more daunting to me than writing a new 
importer.

Carlo

[0001-import-Add-importer-for-MELPA-packages.patch (text/x-diff, attachment)]

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