[PATCH] t7800 readlink not found

[Armin Kunaschik <megabreit@googlemail.com>]

On 05/27/2016 06:19 AM, David Aguilar wrote:
> On Wed, May 25, 2016 at 11:33:33AM +0200, Armin Kunaschik wrote:
> 
> Would you mind submitting a patch so that we can support these
> tests when running on AIX/HP-UX?

I don't feel comfortable to submit patches for tests I can't verify. I
don't have valgrind and python/p4 here. Looking to the code I'd say,
patching the p4 tests with "ls -ld | sed" looks quite save.
But I'm not sure about the test-lib.sh. When you are really super
paranoid, as written in the comment, you should probably use perl like

perl -e 'print readlink $ARGV[0]' $name

as a replacement.

So, as suggested by Junio, here the readlink workaround for t7800 only.
(hopefully whitespace clean this time)

--- 8< --- 8< ---
From: Armin Kunaschik <megabreit@googlemail.com>
Subject: t7800: readlink is not portable

The readlink(1) command is not available on all platforms (notably not
on AIX and HP-UX) and can be replaced in this test with the "workaround"

ls -ld <name> | sed -e 's/.* -> //'

This is no universal readlink replacement but works in the controlled
test environment good enough.

Signed-off-by: Armin Kunaschik <megabreit@googlemail.com>
---

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 7ce4cd7..905035c 100755
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -446,7 +446,7 @@ write_script .git/CHECK_SYMLINKS <<\EOF
 for f in file file2 sub/sub
 do
 	echo "$f"
-	readlink "$2/$f"
+	ls -ld "$2/$f" | sed -e 's/.* -> //'
 done >actual
 EOF