From: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Date: Fri, 31 May 2013 13:51:40 +0300
Subject: Use posix tar format by default

Should lead to smaller deltas as e.g. git-archive produces tarballs in
posix format.

The tar format guessing makes sure that pristine-tar commits generated
with "gnu" tar format also are usable.

Change-Id: I52c20b81c4b02ec22d3744d49b64415af14e0ab4
Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
---
 pristine-tar | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/pristine-tar b/pristine-tar
index 0bf44e8..d36e51b 100755
--- a/pristine-tar
+++ b/pristine-tar
@@ -417,12 +417,10 @@ sub gentar {
 
 	my @try;
 	push @try, sub { recreatetarball($delta->{manifest}, getcwd,
-			clobber_source => 0, %opts) };
-	push @try, \&recreatetarball_longlink_100;
+			clobber_source => 0, tar_format => "posix", %opts) };
 	push @try, sub { recreatetarball($delta->{manifest}, getcwd,
 			clobber_source => 0, tar_format => "gnu", %opts) };
-	push @try, sub { recreatetarball($delta->{manifest}, getcwd,
-			clobber_source => 0, tar_format => "posix", %opts) };
+	push @try, \&recreatetarball_longlink_100;
 
 	my $ok;
 	foreach my $variant (@try) {
@@ -532,7 +530,8 @@ sub gendelta {
 		if ($#out == 0 && -d $out[0]) {
 			$sourcedir=$out[0];
 		}
-		$recreatetarball=recreatetarball("$tempdir/manifest", $sourcedir, clobber_source => 1);
+		$recreatetarball=recreatetarball("$tempdir/manifest", $sourcedir,
+									clobber_source => 1, tar_format => "posix");
 	}
 	else {
 		$recreatetarball=$opts{recreatetarball};
@@ -800,7 +799,7 @@ sub commit {
 	my ($sourcedir, $id)=export($upstream);
 	genmanifest($tarball, "$tempdir/manifest");
 	my $recreatetarball=recreatetarball("$tempdir/manifest", $sourcedir,
-		clobber_source => 1, create_missing => 1);
+		clobber_source => 1, create_missing => 1, tar_format => "posix");
 	my $pid = open(GENDELTA, "-|");
 	if (! $pid) {
 		# child