build/python: Always add the install prefix to the Guix PYTHONPATH.

This is to remove the need for common boilerplate code in check phase
overrides.

* guix/build/python-build-system.scm
(add-installed-pythonpath): Streamline.  This phase depends on the presence of
a "python" input; thus GUIX_PYTHONPATH is guaranteed to be defined.  Update doc.
(add-install-to-pythonpath): New phase.
(%standard-phases): Order it before the check phase.
This commit is contained in:
Maxim Cournoyer 2021-01-22 09:15:46 -05:00
parent 18e9979970
commit 91cf9d17f0
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@ -6,7 +6,7 @@
;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2019, 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2019, 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
;;;
@ -170,13 +170,14 @@ (define (site-packages inputs outputs)
(string-append out "/lib/python" (python-version python) "/site-packages")))
(define (add-installed-pythonpath inputs outputs)
"Add the Python site-package of OUTPUT to GUIX_PYTHONPATH. This is useful
when running checks after installing the package."
(let ((old-path (getenv "GUIX_PYTHONPATH"))
(new-path (site-packages inputs outputs)))
(setenv "GUIX_PYTHONPATH"
(string-append new-path
(if old-path (string-append ":" old-path) "")))))
"Prepend the site-package of OUTPUT to GUIX_PYTHONPATH. This is useful when
running checks after installing the package."
(setenv "GUIX_PYTHONPATH" (string-append (site-packages inputs outputs) ":"
(getenv "GUIX_PYTHONPATH"))))
(define* (add-install-to-pythonpath #:key inputs outputs #:allow-other-keys)
"A phase that just wraps the 'add-installed-pythonpath' procedure."
(add-installed-pythonpath inputs outputs))
(define* (install #:key inputs outputs (configure-flags '()) use-setuptools?
#:allow-other-keys)
@ -294,6 +295,7 @@ (define %standard-phases
(replace 'install install)
(add-after 'install 'check check)
(add-after 'install 'wrap wrap)
(add-before 'check 'add-install-to-pythonpath add-install-to-pythonpath)
(add-before 'strip 'rename-pth-file rename-pth-file)))
(define* (python-build #:key inputs (phases %standard-phases)