diff options
Diffstat (limited to 'guix/scripts')
| -rw-r--r-- | guix/scripts/system.scm | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm index 5737807d8b..4f1869af38 100644 --- a/guix/scripts/system.scm +++ b/guix/scripts/system.scm @@ -172,6 +172,16 @@ When GRUB? is true, install GRUB on DEVICE, using GRUB.CFG." ;; The system profile. (string-append %state-directory "/profiles/system")) +(define-syntax-rule (save-environment-excursion body ...) + "Save the current environment variables, run BODY..., and restore them." + (let ((env (environ))) + (dynamic-wind + (const #t) + (lambda () + body ...) + (lambda () + (environ env))))) + (define* (switch-to-system os #:optional (profile %system-profile)) "Make a new generation of PROFILE pointing to the directory of OS, switch to @@ -185,7 +195,11 @@ it atomically, and then run OS's activation script." (switch-symlinks profile generation) (format #t (_ "activating system...~%")) - (return (primitive-load (derivation->output-path script))) + + ;; The activation script may change $PATH, among others, so protect + ;; against that. + (return (save-environment-excursion + (primitive-load (derivation->output-path script)))) ;; TODO: Run 'deco reload ...'. ))) |