diff options
Diffstat (limited to 'gnu/system/file-systems.scm')
| -rw-r--r-- | gnu/system/file-systems.scm | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gnu/system/file-systems.scm b/gnu/system/file-systems.scm index b2721f2389..708d53d0a1 100644 --- a/gnu/system/file-systems.scm +++ b/gnu/system/file-systems.scm @@ -19,7 +19,6 @@ (define-module (gnu system file-systems) #:use-module (ice-9 match) #:use-module (guix records) - #:use-module (guix store) #:use-module ((gnu build file-systems) #:select (string->uuid uuid->string)) #:re-export (string->uuid @@ -97,6 +96,20 @@ (dependencies file-system-dependencies ; list of <file-system> (default '()))) ; or <mapped-device> +;; Note: This module is used both on the build side and on the host side. +;; Arrange not to pull (guix store) and (guix config) because the latter +;; differs from user to user. +(define (%store-prefix) + "Return the store prefix." + (cond ((resolve-module '(guix store) #:ensure #f) + => + (lambda (store) + ((module-ref store '%store-prefix)))) + ((getenv "NIX_STORE") + => identity) + (else + "/gnu/store"))) + (define %not-slash (char-set-complement (char-set #\/))) |