From 20b8258e6839d110deda224b9f4c89e02f8bd7de Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Sun, 9 Jan 2011 21:37:01 +0000
Subject: [PATCH] * Handle the case where a machine produces no coverage data.

svn path=/nixos/trunk/; revision=25477
---
 lib/testing.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/testing.nix b/lib/testing.nix
index 1cc237cba9d5..c7acbfa13c1a 100644
--- a/lib/testing.nix
+++ b/lib/testing.nix
@@ -77,11 +77,11 @@ rec {
   # runTests.
   makeReport = x: runCommand "report" { buildInputs = [rsync]; }
     ''
+      mkdir -p $TMPDIR/gcov/
+
       for d in ${x}/coverage-data/*; do
-
           echo "doing $d"
-
-          ensureDir $TMPDIR/gcov/
+          [ -n "$(ls -A "$d")" ] || continue
 
           for i in $(cd $d/nix/store && ls); do
               if ! test -e $TMPDIR/gcov/nix/store/$i; then