diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index e9274a05f4..e76a281bba 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -990,6 +990,18 @@ they can refer to each other." (module-ref (resolve-interface '(gnu packages commencement)) 'guile-final)) +(define (load-path-expression modules) + "Return as a monadic value a gexp that sets '%load-path' and +'%load-compiled-path' to point to MODULES, a list of module names." + (mlet %store-monad ((modules (imported-modules modules)) + (compiled (compiled-modules modules))) + (return (gexp (eval-when (expand load eval) + (set! %load-path + (cons (ungexp modules) %load-path)) + (set! %load-compiled-path + (cons (ungexp compiled) + %load-compiled-path))))))) + (define* (gexp->script name exp #:key (modules '()) (guile (default-guile))) "Return an executable script NAME that runs EXP using GUILE with MODULES in @@ -997,8 +1009,7 @@ its search path." (define %modules (append (gexp-modules exp) modules)) - (mlet %store-monad ((modules (imported-modules %modules)) - (compiled (compiled-modules %modules))) + (mlet %store-monad ((set-load-path (load-path-expression %modules))) (gexp->derivation name (gexp (call-with-output-file (ungexp output) @@ -1011,16 +1022,7 @@ its search path." "#!~a/bin/guile --no-auto-compile~%!#~%" (ungexp guile)) - ;; Write the 'eval-when' form so that it can be - ;; compiled. - (write - '(eval-when (expand load eval) - (set! %load-path - (cons (ungexp modules) %load-path)) - (set! %load-compiled-path - (cons (ungexp compiled) - %load-compiled-path))) - port) + (write '(ungexp set-load-path) port) (write '(ungexp exp) port) (chmod port #o555))))))) |