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[PATCH] xfstests: Change the diff output of failed tests

To: xfs@xxxxxxxxxxx
Subject: [PATCH] xfstests: Change the diff output of failed tests
From: Lukas Czerner <lczerner@xxxxxxxxxx>
Date: Tue, 10 Apr 2012 10:38:33 +0200
Cc: Lukas Czerner <lczerner@xxxxxxxxxx>
Currently the entire diff is printed to the stdout in the case that the
test output template differs from the actual test run. However in some
cases the diff can be _very_ long. This commit changes it so that we
print only first 10 lines of the diff.

Also indent the diff output from the left by four spaces for better
output readability.

Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
---
 check |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/check b/check
index f792009..c5d67a5 100755
--- a/check
+++ b/check
@@ -286,7 +286,11 @@ do
                else
                    echo " - output mismatch (see $seq.out.bad)"
                    mv $tmp.out $seq.out.bad
-                   $diff $seq.out $seq.out.bad
+                   $diff $seq.out $seq.out.bad | head -n 10 | \
+                       sed -e 's/^\(.\)/    \1/'
+                   echo "     ..."
+                   echo "     (Run '$diff $seq.out $seq.out.bad' to see the" \
+                        "entire diff)"
                    err=true
                fi
            fi
-- 
1.7.4.4

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