diff options
| -rw-r--r-- | guix/scripts/build.scm | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm index debf7c2848..a6596d0a82 100644 --- a/guix/scripts/build.scm +++ b/guix/scripts/build.scm @@ -404,10 +404,16 @@ must be one of 'package', 'all', or 'transitive'~%") (define (options->things-to-build opts) "Read the arguments from OPTS and return a list of high-level objects to build---packages, gexps, derivations, and so on." - (define ensure-list - (match-lambda - ((x ...) x) - (x (list x)))) + (define (validate-type x) + (unless (or (package? x) (derivation? x) (gexp? x) (procedure? x)) + (leave (_ "~s: not something we can build~%") x))) + + (define (ensure-list x) + (let ((lst (match x + ((x ...) x) + (x (list x))))) + (for-each validate-type lst) + lst)) (append-map (match-lambda (('argument . (? string? spec)) |