diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index e76a281bba..60f8905ea4 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -1026,15 +1026,29 @@ its search path." (write '(ungexp exp) port) (chmod port #o555))))))) -(define (gexp->file name exp) - "Return a derivation that builds a file NAME containing EXP." - (gexp->derivation name - (gexp - (call-with-output-file (ungexp output) - (lambda (port) - (write '(ungexp exp) port)))) - #:local-build? #t - #:substitutable? #f)) +(define* (gexp->file name exp #:key (set-load-path? #t)) + "Return a derivation that builds a file NAME containing EXP. When +SET-LOAD-PATH? is true, emit code in the resulting file to set '%load-path' +and '%load-compiled-path' to honor EXP's imported modules." + (match (if set-load-path? (gexp-modules exp) '()) + (() ;zero modules + (gexp->derivation name + (gexp + (call-with-output-file (ungexp output) + (lambda (port) + (write '(ungexp exp) port)))) + #:local-build? #t + #:substitutable? #f)) + ((modules ...) + (mlet %store-monad ((set-load-path (load-path-expression modules))) + (gexp->derivation name + (gexp + (call-with-output-file (ungexp output) + (lambda (port) + (write '(ungexp set-load-path) port) + (write '(ungexp exp) port)))) + #:local-build? #t + #:substitutable? #f))))) (define* (text-file* name #:rest text) "Return as a monadic value a derivation that builds a text file containing |