Re: t7800 test failure

[Junio C Hamano <gitster@pobox.com>]

Armin Kunaschik <megabreit@googlemail.com> writes:

>> I wouldn't allow it in our scripted Porcelain, but the environment
>> of our test scripts are under our control, so I do not think it is a
>> problem ("ls piped to sed" has been an established idiom before
>> readlink(1) was widely accepted, by the way).
>
> I think so too. Maybe I can improve the sed expression a bit, but
> it will never be a universal readlink replacement. But it doesn't have to.
> It's defined locally for this one test only and it does the specific job.
>
>>> It would be acceptable as a fall-back if readlink is not present, but
>>> shouldn't activate the "ls" hack by default.
>>
>> Yup.
>
> Ok, how can this be implemented within the test environment?

I actually think an unconditional check like this is sufficient.

 t/t7800-difftool.sh | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 7ce4cd7..f304228 100755
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -442,15 +442,16 @@ run_dir_diff_test 'difftool --dir-diff with unmerged files' '
 	test_cmp expect actual
 '
 
-write_script .git/CHECK_SYMLINKS <<\EOF
-for f in file file2 sub/sub
-do
-	echo "$f"
-	readlink "$2/$f"
-done >actual
-EOF
-
 test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
+
+	write_script .git/CHECK_SYMLINKS <<-\EOF &&
+	for f in file file2 sub/sub
+	do
+		echo "$f"
+		ls -ld "$2/$f" | sed -e "s/.* -> //"
+	done >actual
+	EOF
+
 	cat >expect <<-EOF &&
 	file
 	$PWD/file