t9502: do not assume GNU tar

The check_snapshot function makes sure that no cruft outside the
repository hierarchy is added to the tar archive.  The output from
"tar tf" on the resulting archive is inspected to see if there is
anything that does not begin with "$prefix/".

There are two issues with this implementation:

 - Traditional tar implemenations that do not understand
   pax_global_header will write it out as if it is a plain file at
   the top-level;

 - Some implementations of tar do not add trailing slash when
   showing a directory entry (i.e. the output line for the entire
   archive will show "$prefix", not "$prefix/").

Fix them so that what we want to validate can be tested with
traditional tar implementations.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t9502-gitweb-standalone-parse-output.sh b/t/t9502-gitweb-standalone-parse-output.sh
index 3a8e7d3f5aa1dc6a4d13467babd96a293ee1bb6e..86dfee2e4f93750aa72c0b24df57c77faa091aa7 100755 (executable)
--- a/t/t9502-gitweb-standalone-parse-output.sh
+++ b/t/t9502-gitweb-standalone-parse-output.sh
@@ -40,7 +40,7 @@ check_snapshot () {
        echo "basename=$basename"
        grep "filename=.*$basename.tar" gitweb.headers >/dev/null 2>&1 &&
        "$TAR" tf gitweb.body >file_list &&
-       ! grep -v "^$prefix/" file_list
+       ! grep -v -e "^$prefix$" -e "^$prefix/" -e "^pax_global_header$" file_list
 }
 
 test_expect_success setup '