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packages: Factorize and document 'computed-origin-method'. 

The 'computed-origin-method' had been introduced to work around
limitations of the 'snippet' mechanism.  The procedure was duplicated,
which made it hard to automatically detect packages using it.

* guix/packages.scm (computed-origin-method): Move procedure from...
* gnu/packages/gnuzilla.scm: ...here and...
* gnu/packages/gnuzilla.scm: ...there.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
zimoun 2021-09-16 13:47:33 +02:00 committed by Ludovic Courtès
parent 56b10709ef
commit 270b30705d
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3 changed files with 26 additions and 25 deletions
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14
gnu/packages/gnuzilla.scm
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@ -682,18 +682,8 @@ in C/C++.")
("1j6l66v1xw27z8w78mpsnmqgv8m277mf4r0hgqcrb4zx7xc2vqyy" "527e5e090608" "zh-CN")
("1frwx35klpyz3sdwrkz7945ivb2dwaawhhyfnz4092h9hn7rc4ky" "6cd366ad2947" "zh-TW")))
(define* (computed-origin-method gexp-promise hash-algo hash
#:optional (name "source")
#:key (system (%current-system))
(guile (default-guile)))
"Return a derivation that executes the G-expression that results
from forcing GEXP-PROMISE."
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "computed-origin")
(force gexp-promise)
#:graft? #f ;nothing to graft
#:system system
#:guile-for-build guile)))
;; XXXX: Workaround 'snippet' limitations.
(define computed-origin-method (@@ (guix packages) computed-origin-method))
(define %icecat-version "78.14.0-guix0-preview1")
(define %icecat-build-id "20210907000000") ;must be of the form YYYYMMDDhhmmss

14
gnu/packages/linux.scm
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@ -215,18 +215,8 @@ defconfig. Return the appropriate make target if applicable, otherwise return
(file-name (string-append "linux-libre-deblob-check-" version "-" gnu-revision))
(sha256 deblob-check-hash))))
(define* (computed-origin-method gexp-promise hash-algo hash
#:optional (name "source")
#:key (system (%current-system))
(guile (default-guile)))
"Return a derivation that executes the G-expression that results
from forcing GEXP-PROMISE."
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "computed-origin")
(force gexp-promise)
#:graft? #f ;nothing to graft
#:system system
#:guile-for-build guile)))
;; XXXX: Workaround 'snippet' limitations
(define computed-origin-method (@@ (guix packages) computed-origin-method))
(define (make-linux-libre-source version
upstream-source

23
guix/packages.scm
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@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014, 2015, 2017, 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2014, 2015, 2017, 2018, 2019 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
;;; Copyright © 2017, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
@ -344,6 +344,27 @@ name of its URI."
;; git, svn, cvs, etc. reference
#f))))
;; Work around limitations in the 'snippet' mechanism. It is not possible for
;; a 'snippet' to produce a tarball with a different base name than the
;; original downloaded source. Moreover, cherry picking dozens of upsteam
;; patches and applying them suddenly is often impractical; especially when a
;; comprehensive code reformatting is done upstream. Mainly designed for
;; Linux and IceCat packages.
;; XXXX: do not make part of public API (export) such radical capability
;; before a detailed review process.
(define* (computed-origin-method gexp-promise hash-algo hash
#:optional (name "source")
#:key (system (%current-system))
(guile (default-guile)))
"Return a derivation that executes the G-expression that results
from forcing GEXP-PROMISE."
(mlet %store-monad ((guile (package->derivation guile system)))
(gexp->derivation (or name "computed-origin")
(force gexp-promise)
#:graft? #f ;nothing to graft
#:system system
#:guile-for-build guile)))
(define %supported-systems
;; This is the list of system types that are supported. By default, we