From dce3a40bae7eaa65fd2cecb624aa530d0b0e3521 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Wed, 21 Nov 2012 00:57:47 +0100
Subject: build: Fix `hydra.scm' recipe.

* hydra.scm: Redirect the output port to the error port.
  (package-job): Return a name/thunk pair.
  (hydra-jobs)[system]: Use either the `system' key (a symbol) in
  ARGUMENTS, or (%current-system)'.
---
 hydra.scm | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/hydra.scm b/hydra.scm
index 4016a69d75..312358b9f9 100644
--- a/hydra.scm
+++ b/hydra.scm
@@ -23,10 +23,17 @@
 
 (use-modules (guix store)
              (guix packages)
+             ((guix utils) #:select (%current-system))
              (distro)
              (distro packages guile)
+             (srfi srfi-26)
              (ice-9 match))
 
+;; XXX: Debugging hack: since `hydra-eval-guile-jobs' redirects the output
+;; port to the bit bucket, let us write to the error port instead.
+(setvbuf (current-error-port) _IOLBF)
+(set-current-output-port (current-error-port))
+
 (define (package->alist store package system)
   "Convert PACKAGE to an alist suitable for Hydra."
   `((derivation . ,(package-derivation store package system))
@@ -37,12 +44,13 @@ (define (package->alist store package system)
 
 (define (package-job store job-name package system)
   "Return a job called JOB-NAME that builds PACKAGE on SYSTEM."
-  `(,job-name . ,(package->alist store package system)))
+  `(,job-name . ,(cut package->alist store package system)))
 
 (define (hydra-jobs store arguments)
   "Return Hydra jobs."
   (define system
-    (assoc-ref arguments "system"))
+    (or (assoc-ref arguments system)
+        (%current-system)))
 
   (map (match-lambda
         ((job-name (? package? package))
-- 
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