From: Josselin Poiret <dev@jpoiret.xyz>
To: David Arroyo <david@aqwari.net>,
Pjotr Prins <pjotr.public12@thebird.nl>,
Ryan Prior <rprior@protonmail.com>
Cc: Guix Devel <guix-devel@gnu.org>
Subject: Re: Building a software toolchain that works
Date: Wed, 16 Mar 2022 15:02:07 +0100 [thread overview]
Message-ID: <87tubyc7xc.fsf@jpoiret.xyz> (raw)
In-Reply-To: <26d5e14e-97cf-4346-a434-9e73658495b7@www.fastmail.com>
Hello everyone,
Let me chime in on a specific point.
"David Arroyo" <david@aqwari.net> writes:
> I recently used guix to make a one-line change to the dovecot-pigeonhole
> package. Initially I tried to do this without guix, and had difficulties
> using autoconf/automake. So instead, I made my changes, captured them with
> `git diff`, and then used the `--with-patch` option of `guix install` to
> build and install the modified version. It wasn't too hard, but it could
> have been easier. It may have not been worth the effort in this case for
> someone new to guix, but the nice thing is I could take the same steps
> to modify any piece of free software for which a guix package exists,
> regardless of the build system in use.
I recently did the same to produce my LUKS2 patches for GRUB [1]!
What I did was hack on the code to add what I needed, produce some
patches with `git format-patch` then define
--8<---------------cut here---------------start------------->8---
(define grub-efi-luks2
(package/inherit grub-efi
(source
(origin
(inherit (package-source grub-efi))
(patches (cons* "0001-devmapper-getroot-Have-devmapper-recognize-LUKS2.patch"
"0002-devmapper-getroot-Set-up-cheated-LUKS2-cryptodisk-mo.patch"
(origin-patches (package-source grub-efi))))))))
--8<---------------cut here---------------end--------------->8---
With this, I could test build failures, but then I also ended up testing
the resulting GRUB in a VM by installing guix with a config.scm that had
the following:
--8<---------------cut here---------------start------------->8---
(operating-system
(bootloader (bootloader-configuration
(bootloader
(bootloader
(inherit grub-efi-bootloader)
(package grub-efi-luks2)))
(target "/boot/efi")
(keyboard-layout keyboard-layout)))
...)
--8<---------------cut here---------------end--------------->8---
This made it extremely easy to test my changes! I don't think I
would've written these patches without Guix's help.
[1] https://lists.gnu.org/archive/html/grub-devel/2021-12/msg00076.html
Best,
--
Josselin Poiret
next prev parent reply other threads:[~2022-03-16 14:19 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 19:05 Building a software toolchain that works Ryan Prior
2022-03-14 20:26 ` Pjotr Prins
2022-03-14 21:40 ` David Arroyo
2022-03-15 8:19 ` Ludovic Courtès
2022-03-17 9:20 ` zimoun
2022-03-16 14:02 ` Josselin Poiret [this message]
2022-03-16 15:28 ` Ryan Prior
2022-03-16 20:13 ` Yasuaki Kudo
2022-03-17 15:35 ` Maxime Devos
2022-03-17 16:56 ` David Arroyo
2022-03-14 23:57 ` Olivier Dion via Development of GNU Guix and the GNU System distribution.
2022-03-15 8:23 ` Ludovic Courtès
2022-03-15 8:42 ` Pjotr Prins
2022-03-15 12:32 ` Yasuaki Kudo
2022-03-17 12:56 ` zimoun
2022-03-18 21:13 ` david larsson
2022-03-18 23:59 ` Yasuaki Kudo
2022-03-19 13:02 ` Windows Subsystem for Linux zimoun
2022-03-24 21:14 ` Ludovic Courtès
2022-03-25 3:43 ` Maxim Cournoyer
2022-03-25 9:04 ` Phil
2022-03-25 10:14 ` Oliver Propst
2022-03-17 20:04 ` Building a software toolchain that works Katherine Cox-Buday
2022-03-18 6:27 ` Pjotr Prins
2022-03-18 9:10 ` Oliver Propst
-- strict thread matches above, loose matches on Subject: below --
2022-03-17 12:06 zimoun
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