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Re: Odd behavior with --dry-run and --upgrade

From: Roel Janssen
Subject: Re: Odd behavior with --dry-run and --upgrade
Date: Tue, 26 Jul 2016 00:14:47 +0200
User-agent: mu4e 0.9.17; emacs 24.5.1

Ludovic Courtès writes:

> Hi!
> Alex Kost <address@hidden> skribis:
>> Roel Janssen (2016-07-23 18:11 +0300) wrote:
>>> Dear Guix,
>>> For some time now, running `guix package --dry-run --upgrade' results in
>>> build actions involving grafting.  For a dry-run, I find that really
>>> odd.  I believe the correct behavior should be what can be achieved
>>> with: `guix package --dry-run --no-grafts --upgrade'.
>> I'm totally agree with this; nowadays I always use --dry-run with
>> --no-grafts option.
> Same here…
>> As a user I expect that --dry-run means no building at all.
>> BTW it's not just about ‘guix package --dry-run --upgrade’, it relates
>> to all commands, for example ‘guix build --dry-run foo’, etc.
>> OTOH, if a future ‘--dry-run’ would mean what ‘--dry-run --no-grafts’
>> means now, than how to achieve what ‘--dry-run’ means now?  Or rather:
>> does anyone use just --dry-run (without --no-grafts)?  Is it really
>> useful?
> In theory it could be useful for ‘guix build’, since it’s a “low level”
> tool and people using it may want to be able to distinguish between
> grafted and non-grafted results.
> But honestly, I think changing ‘--dry-run’ to do ‘--dry-run --no-grafts’
> would be fine, and probably better than the current situation.

Could you provide some insight in where I should be looking to att the
check to 'graft?'?

Kind regards,
Roel Janssen

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