From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: emacs.scm: Suggest add emacs-next or emacs-snapshot
Date: Sat, 14 Nov 2015 12:25:33 +0100
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In-Reply-To: <idjegfuc62j.fsf@bimsb-sys02.mdc-berlin.net> (Ricardo Wurmus's
	message of "Fri, 13 Nov 2015 15:44:20 +0100")
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To: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Cc: guix-devel@gnu.org, Feng Shu <tumashu@163.com>

Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> skribis:

> Feng Shu <tumashu@163.com> writes:
>
>> ludo@gnu.org (Ludovic Court=C3=A8s) writes:
>>
>>> Currently you have to do:
>>>
>>>   guix package -i $(guix build emacs --with-source=3D=E2=80=A6/emacs-20=
151111.tar.gz)
>>>
>>> Not as convenient as one would like.  I guess we could add --with-source
>>> directly in =E2=80=98guix package=E2=80=99.
>>
>> I agree and suggest add a way which can override name and verison, for
>> example:
>>
>>   guix package -i emacs-snapshot --with-source=3D/path/to/emacs.git --ov=
erride-name=3Demacs-snapshot --override-version=3D20151111
>
> I don=E2=80=99t like to add override-name and override-version flags.  Th=
ey
> don=E2=80=99t seem very useful.  After all, every different build gets it=
s own
> directory in the store, so =E2=80=9Coverride-version=E2=80=9D seems to be=
 useless.
>
> =E2=80=9Coverride-name=E2=80=9D just duplicates the package name, so I fa=
il to see how
> it would be an improvement.

Currently the name and version are inferred from the file/directory name
passed to --with-source.  That seemed like a simple UI, at the expense
of less flexibility compared to what Feng Shu proposes.

It=E2=80=99s always possible to do something arbitrarily complex and then u=
se
=E2=80=98guix package --install-from-file=E2=80=99.

What=E2=80=99s missing though is the ability to pass --with-source to =E2=
=80=98guix
package=E2=80=99.

> I do agree that it would be a little nicer if we could build and install
> a package from a directory, rather than just from a tarball.

It=E2=80=99s already possible, but its name must match the package name.

Thanks,
Ludo=E2=80=99.