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authorLudovic Courtès <ludo@gnu.org>2012-06-16 16:46:29 +0200
committerLudovic Courtès <ludo@gnu.org>2012-06-16 16:46:29 +0200
commitdb393b333f77ffbb573faf47b6df74dc65a0e85b (patch)
treecf549558a8dfc042319d27fb8e7b8313ea28f736
parent9f55cf8d56bc10ebe54902a98942dc895ccd837c (diff)
build-expression->derivation: Have the build fail when EXP returns #f.
* guix/derivations.scm (build-expression->derivation)[builder]: Pass the result of EXP to `exit'. * tests/derivations.scm ("build-expression->derivation with expression returning #f"): New test.
-rw-r--r--guix/derivations.scm7
-rw-r--r--tests/derivations.scm16
2 files changed, 21 insertions, 2 deletions
diff --git a/guix/derivations.scm b/guix/derivations.scm
index ffdf570fc2..24ee06c399 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -446,7 +446,9 @@ derivation NAME. INPUTS must be a list of (NAME DRV-PATH SUB-DRV) tuples;
when SUB-DRV is omitted, \"out\" is assumed. EXP is evaluated in an
environment where %OUTPUT is bound to the main output path, %OUTPUTS is bound
to a list of output/path pairs, and where %BUILD-INPUTS is bound to an alist
-of string/output-path pairs made from INPUTS."
+of string/output-path pairs made from INPUTS. The builder terminates by
+passing the result of EXP to `exit'; thus, when EXP returns #f, the build is
+considered to have failed."
(define guile
(string-append (derivation-path->output-path (%guile-for-build))
"/bin/guile"))
@@ -472,7 +474,8 @@ of string/output-path pairs made from INPUTS."
(builder (add-text-to-store store
(string-append name "-guile-builder")
(string-append (object->string prologue)
- (object->string exp))
+ (object->string
+ `(exit ,exp)))
(map second inputs)))
(mod-drv (if (null? modules)
#f
diff --git a/tests/derivations.scm b/tests/derivations.scm
index 4a81a70f65..1e9a136d04 100644
--- a/tests/derivations.scm
+++ b/tests/derivations.scm
@@ -29,6 +29,7 @@
#:use-module (rnrs io ports)
#:use-module (rnrs bytevectors)
#:use-module (ice-9 rdelim)
+ #:use-module (ice-9 regex)
#:use-module (ice-9 ftw)
#:use-module (ice-9 match))
@@ -181,6 +182,20 @@
(equal? '(hello guix)
(call-with-input-file (string-append p "/test") read))))))
+(test-assert "build-expression->derivation with expression returning #f"
+ (let* ((builder '(begin
+ (mkdir %output)
+ #f)) ; fail!
+ (drv-path (build-expression->derivation %store "fail" (%current-system)
+ builder '())))
+ (guard (c ((nix-protocol-error? c)
+ ;; Note that the output path may exist at this point, but it
+ ;; is invalid.
+ (not (not (string-match "build .* failed"
+ (nix-protocol-error-message c))))))
+ (build-derivations %store (list drv-path))
+ #f)))
+
(test-assert "build-expression->derivation with two outputs"
(let* ((builder '(begin
(call-with-output-file (assoc-ref %outputs "out")
@@ -265,4 +280,5 @@
;;; Local Variables:
;;; eval: (put 'test-assert 'scheme-indent-function 1)
+;;; eval: (put 'guard 'scheme-indent-function 1)
;;; End: