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modules: Raise an error when a dependency could not be found.

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* guix/modules.scm (&missing-dependency-error): New error condition.
(source-module-dependencies): Raise it when 'search-path' returns #f.
* tests/modules.scm ("&missing-dependency-error"): New test.
This commit is contained in:
Ludovic Courtès
2017-05-25 14:19:51 +02:00
parent 4862a98be4
commit bfe5264aa1
2 changed files with 41 additions and 5 deletions
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25
tests/modules.scm
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@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -19,7 +19,9 @@
(define-module (test-modules)
#:use-module (guix modules)
#:use-module ((guix build-system gnu) #:select (%gnu-build-system-modules))
#:use-module ((guix utils) #:select (call-with-temporary-directory))
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-64))
(test-begin "modules")
@@ -42,4 +44,25 @@
(live-module-closure '((gnu build vm)))
(source-module-closure '((gnu build vm)))))
(test-equal "&missing-dependency-error"
'(something that does not exist)
(call-with-temporary-directory
(lambda (directory)
(call-with-output-file (string-append directory "/foobar.scm")
(lambda (port)
(write '(define-module (foobar)
#:use-module (something that does not exist))
port)))
(call-with-output-file (string-append directory "/baz.scm")
(lambda (port)
(write '(define-module (baz)
#:use-module (foobar))
port)))
(guard (c ((missing-dependency-error? c)
(missing-dependency-module c)))
(source-module-closure '((baz)) (list directory)
#:select? (const #t))))))
(test-end)