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environment: Fix '--emulate-fhs' option overriding $PATH. 

Fixes <https://issues.guix.gnu.org/60566> where even if "--preserve='^PATH$'"
was passed to 'guix shell' it would be replaced by just the FHS directories
when '--emulate-fhs' was also set.

* gnu/scripts/environment.scm (launch-environment): Add the FHS directories to
$PATH rather than overriding $PATH completely.
* tests/guix-environment-container.sh: Test that FHS directories are in $PATH
in the container and that $PATH can be preserved.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
master
John Kehayias 2023-01-05 16:06:19 -05:00
parent a5b914156e
commit 3bfbfa2946
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GPG Key ID: 499097AE5EA815D9
2 changed files with 19 additions and 5 deletions
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11
guix/scripts/environment.scm
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@ -1,8 +1,8 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2018 David Thompson <davet@gnu.org>
;;; Copyright © 2015-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Mike Gerwitz <mtg@gnu.org>
;;; Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
;;; Copyright © 2022, 2023 John Kehayias <john.kehayias@protonmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -475,10 +475,13 @@ cache."
(catch 'system-error
(lambda ()
(when emulate-fhs?
;; When running in a container with EMULATE-FHS?, override $PATH
;; When running in a container with EMULATE-FHS?, augment $PATH
;; (optional, but to better match FHS expectations), and generate
;; /etc/ld.so.cache.
(setenv "PATH" "/bin:/usr/bin:/sbin:/usr/sbin")
(setenv "PATH" (string-append "/bin:/usr/bin:/sbin:/usr/sbin"
(if (getenv "PATH")
(string-append ":" (getenv "PATH"))
"")))
(invoke "ldconfig" "-X"))
(apply execlp program program args))
(lambda _

13
tests/guix-environment-container.sh
View File

@ -1,6 +1,7 @@
# GNU Guix --- Functional package management for GNU
# Copyright © 2015 David Thompson <davet@gnu.org>
# Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
# Copyright © 2022, 2023 John Kehayias <john.kehayias@protonmail.com>
# Copyright © 2023 Ludovic Courtès <ludo@gnu.org>
#
# This file is part of GNU Guix.
#
@ -242,6 +243,16 @@ guix shell -CF --bootstrap guile-bootstrap glibc \
0
1))'
# Test that $PATH inside the container includes the FHS directories.
guix shell -CF coreutils -- env | grep ^PATH=/bin:/usr/bin:/sbin:/usr/sbin.*
# Make sure '--preserve' is honored for $PATH, which the '--emulate-fhs'
# option modifies. We can't (easily) check the whole $PATH as it will differ
# inside and outside the container, so just check our test $PATH is still
# present. See <https://issues.guix.gnu.org/60566>.
PATH=/foo $(type -P guix) shell -CF -E ^PATH$ coreutils \
-- env | grep ^PATH=.*:/foo
# '--symlink' works.
echo "TESTING SYMLINK IN CONTAINER"
guix shell --bootstrap guile-bootstrap --container \