[libvirt] [PATCH 4/5] test-wrap-argv: print diff instead of the incorrectly wrapped file

Commit c9c03ea stopped creating an intermediate file during syntax-check to save on execution time. It also switched to outputting the whole incorrectly wrapped file instead of a diff needed to fix it. Feed the newly wrapped file to diff via a pipe. Note that fixing it by running test-wrap-argv.pl --in-place or the unit test with VIR_TEST_REGENERATE_OUTPUT is easier. --- tests/test-wrap-argv.pl | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tests/test-wrap-argv.pl b/tests/test-wrap-argv.pl index b053f28..6adaef9 100755 --- a/tests/test-wrap-argv.pl +++ b/tests/test-wrap-argv.pl @@ -89,7 +89,10 @@ sub rewrap { my $nl = join('', @lines); my $ol = join('', @orig_lines); unless ($nl eq $ol) { - print STDERR $ol; + open DIFF, "| diff -u $file -" or die "cannot run diff: $!"; + print DIFF $nl; + close DIFF; + print STDERR "Incorrect line wrapping in $file\n"; print STDERR "Use test-wrap-argv.pl to wrap test data files\n"; return -1; -- 2.7.3