build-system: Add 'channel-build-system'.

* gnu/ci.scm (channel-build-system, channel-source->package): Remove.
* gnu/packages/package-management.scm (channel-source->package): New
procedure, moved from (gnu ci).
* guix/build-system/channel.scm: New file, with code moved from (gnu ci).
* doc/guix.texi (Build Systems): Document it.
This commit is contained in:
Ludovic Courtès 2022-08-05 17:09:10 +02:00
parent 0d9eef0a06
commit 5bce4c8242
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GPG Key ID: 090B11993D9AEBB5
6 changed files with 87 additions and 42 deletions

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@ -142,6 +142,7 @@ MODULES = \
guix/build-system/android-ndk.scm \
guix/build-system/ant.scm \
guix/build-system/cargo.scm \
guix/build-system/channel.scm \
guix/build-system/chicken.scm \
guix/build-system/clojure.scm \
guix/build-system/cmake.scm \

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@ -9568,6 +9568,15 @@ with @code{build-expression->derivation} (@pxref{Derivations,
@code{build-expression->derivation}}).
@end defvr
@defvr {Scheme Variable} channel-build-system
This variable is exported by @code{(guix build-system channel)}.
This build system is meant primarily for internal use. It requires two
arguments, @code{#:commit} and @code{#:source}, and builds a Guix
instance from that channel, in the same way @command{guix time-machine}
would do it (@pxref{Channels}).
@end defvr
@node Build Phases
@section Build Phases

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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016, 2018-2020, 2022 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -20,7 +20,6 @@
(gnu packages package-management)
(guix monads)
(guix store)
((gnu ci) #:select (channel-source->package))
((guix git-download) #:select (git-predicate))
((guix utils) #:select (current-source-directory))
(git)

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@ -21,9 +21,9 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu ci)
#:use-module (guix channels)
#:use-module (guix build-system channel)
#:use-module (guix config)
#:use-module (guix describe)
#:autoload (guix describe) (package-channels)
#:use-module (guix store)
#:use-module (guix grafts)
#:use-module (guix profiles)
@ -32,7 +32,6 @@
#:use-module (guix channels)
#:use-module (guix config)
#:use-module (guix derivations)
#:use-module (guix build-system)
#:use-module (guix monads)
#:use-module (guix gexp)
#:use-module (guix ui)
@ -71,7 +70,6 @@
image->job
%core-packages
channel-source->package
arguments->systems
cuirass-jobs))
@ -288,42 +286,6 @@ otherwise use the IMAGE name."
'()))
'()))
(define channel-build-system
;; Build system used to "convert" a channel instance to a package.
(let* ((build (lambda* (name inputs
#:key source commit system
#:allow-other-keys)
(mlet* %store-monad ((source (if (string? source)
(return source)
(lower-object source)))
(instance
-> (checkout->channel-instance
source #:commit commit)))
(channel-instances->derivation (list instance)))))
(lower (lambda* (name #:key system source commit
#:allow-other-keys)
(bag
(name name)
(system system)
(build build)
(arguments `(#:source ,source
#:commit ,commit))))))
(build-system (name 'channel)
(description "Turn a channel instance into a package.")
(lower lower))))
(define* (channel-source->package source #:key commit)
"Return a package for the given channel SOURCE, a lowerable object."
(package
(inherit guix)
(version (string-append (package-version guix) "+"))
(build-system channel-build-system)
(arguments `(#:source ,source
#:commit ,commit))
(inputs '())
(native-inputs '())
(propagated-inputs '())))
(define* (system-test-jobs store system
#:key source commit)
"Return a list of jobs for the system tests."

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@ -110,6 +110,7 @@
#:use-module (gnu packages xml)
#:use-module (gnu packages xorg)
#:use-module (gnu packages version-control)
#:autoload (guix build-system channel) (channel-build-system)
#:use-module (guix build-system glib-or-gtk)
#:use-module (guix build-system gnu)
#:use-module (guix build-system guile)
@ -489,6 +490,21 @@ the Nix package manager.")
(license license:gpl3+)
(properties '((ftp-server . "alpha.gnu.org"))))))
(define* (channel-source->package source #:key commit)
"Return a package for the given channel SOURCE, a lowerable object."
(package
(inherit guix)
(version (string-append (package-version guix) "."
(if commit (string-take commit 7) "")))
(build-system channel-build-system)
(arguments `(#:source ,source
#:commit ,commit))
(inputs '())
(native-inputs '())
(propagated-inputs '())))
(export channel-source->package)
(define-public guix-for-cuirass
;; Known-good revision before commit
;; bd86bbd300474204878e927f6cd3f0defa1662a5, which introduced

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@ -0,0 +1,58 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019-2021 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build-system channel)
#:use-module ((guix store) #:select (%store-monad))
#:use-module ((guix gexp) #:select (lower-object))
#:use-module (guix monads)
#:use-module (guix channels)
#:use-module (guix build-system)
#:export (channel-build-system))
;;; Commentary:
;;;
;;; The "channel" build system lets you build Guix instances from channel
;;; specifications, similar to how 'guix time-machine' would do it, as regular
;;; packages.
;;;
;;; Code:
(define channel-build-system
;; Build system used to "convert" a channel instance to a package.
(let* ((build (lambda* (name inputs
#:key source commit system
#:allow-other-keys)
(mlet* %store-monad ((source (if (string? source)
(return source)
(lower-object source)))
(instance
-> (checkout->channel-instance
source #:commit commit)))
(channel-instances->derivation (list instance)))))
(lower (lambda* (name #:key system source commit
#:allow-other-keys)
(bag
(name name)
(system system)
(build build)
(arguments `(#:source ,source
#:commit ,commit))))))
(build-system (name 'channel)
(description "Turn a channel instance into a package.")
(lower lower))))