Re: building from local (or private) git repository

[Marius Bakke <mbakke@fastmail.com>]

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Robert Vollmert <rob@vllmrt.net> writes:

> Hi all,
>
> I realize this isn’t generally an aim for guix proper, but I’d like
> to be able to build a package from a local git repository (or
> optionally from a local tar ball). In my specific case, it’s while
> working out the packaging of a project I intend to publish but
> haven’t published yet.
>
> What I have working so far uses local-file, as below:
>
> (define-public puzzledb-tools
>   (package
>     (name "puzzledb-tools")
>     (version "20190625-git")
>     (source
>       (local-file
>         "/home/rob/puzzledb/tools"
>         #:recursive? #t))
>   …
>
> That’s a bit annoying because it includes stale files that happen
> to be in the directory, it doesn’t check the hash, etc. Using a
> git origin with a local path doesn’t work for reasons I don’t
> completely understand — I think it’s because the guix-daemon builds
> in a namespace without access to the local filesystem. Perhaps there’s
> a way to link the git repository into that namespace?
>
> Any hints appreciated!

I typically just use (source "/some/repository"), though I don't
remember whether it automatically creates a fixed-output derivation for
the directory in question.  Probably not.

(local-file ...) should, though (I think); but you'll have to trick it
into ignoring ".git" by passing it a #:select? predicate.

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