From 0331526698e485508a1040d24acca5f5eff1c3f3 Mon Sep 17 00:00:00 2001
From: Arfrever Frehtes Taifersar Arahesis <Arfrever@Apache.Org>
Date: Fri, 27 Dec 2013 19:06:10 +0100
Subject: [PATCH] Bug #496134: Preserve extended attributes in binary packages.

---
 bin/misc-functions.sh               |  1 +
 pym/_emerge/Binpkg.py               |  1 +
 pym/_emerge/BinpkgExtractorAsync.py | 15 ++++++++++++---
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/bin/misc-functions.sh b/bin/misc-functions.sh
index 2c4d2489a..5ccf7c224 100755
--- a/bin/misc-functions.sh
+++ b/bin/misc-functions.sh
@@ -1166,6 +1166,7 @@ __dyn_package() {
 
 	local tar_options=""
 	[[ $PORTAGE_VERBOSE = 1 ]] && tar_options+=" -v"
+	has xattr ${FEATURES} && [[ $(tar --help 2> /dev/null) == *--xattrs* ]] && tar_options+=" --xattrs"
 	# Sandbox is disabled in case the user wants to use a symlink
 	# for $PKGDIR and/or $PKGDIR/All.
 	export SANDBOX_ON="0"
diff --git a/pym/_emerge/Binpkg.py b/pym/_emerge/Binpkg.py
index 36f851609..a740efdb9 100644
--- a/pym/_emerge/Binpkg.py
+++ b/pym/_emerge/Binpkg.py
@@ -298,6 +298,7 @@ class Binpkg(CompositeTask):
 
 		extractor = BinpkgExtractorAsync(background=self.background,
 			env=self.settings.environ(),
+			features=self.settings.features,
 			image_dir=self._image_dir,
 			pkg=self.pkg, pkg_path=self._pkg_path,
 			logfile=self.settings.get("PORTAGE_LOG_FILE"),
diff --git a/pym/_emerge/BinpkgExtractorAsync.py b/pym/_emerge/BinpkgExtractorAsync.py
index f25cbf933..be74c2fb7 100644
--- a/pym/_emerge/BinpkgExtractorAsync.py
+++ b/pym/_emerge/BinpkgExtractorAsync.py
@@ -1,23 +1,31 @@
-# Copyright 1999-2011 Gentoo Foundation
+# Copyright 1999-2013 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 from _emerge.SpawnProcess import SpawnProcess
 import portage
 import signal
+import subprocess
 
 class BinpkgExtractorAsync(SpawnProcess):
 
-	__slots__ = ("image_dir", "pkg", "pkg_path")
+	__slots__ = ("features", "image_dir", "pkg", "pkg_path")
 
 	_shell_binary = portage.const.BASH_BINARY
 
 	def _start(self):
+		tar_options = ""
+		if "xattr" in self.features:
+			process = subprocess.Popen(["tar", "--help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+			output = process.communicate()[0]
+			if b"--xattrs" in output:
+				tar_options = "--xattrs"
+
 		# Add -q to bzip2 opts, in order to avoid "trailing garbage after
 		# EOF ignored" warning messages due to xpak trailer.
 		# SIGPIPE handling (128 + SIGPIPE) should be compatible with
 		# assert_sigpipe_ok() that's used by the ebuild unpack() helper.
 		self.args = [self._shell_binary, "-c",
-			("${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -cq -- %s | tar -xp -C %s -f - ; " + \
+			("${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -cq -- %s | tar -xp %s -C %s -f - ; " + \
 			"p=(${PIPESTATUS[@]}) ; " + \
 			"if [[ ${p[0]} != 0 && ${p[0]} != %d ]] ; then " % (128 + signal.SIGPIPE) + \
 			"echo bzip2 failed with status ${p[0]} ; exit ${p[0]} ; fi ; " + \
@@ -25,6 +33,7 @@ class BinpkgExtractorAsync(SpawnProcess):
 			"echo tar failed with status ${p[1]} ; exit ${p[1]} ; fi ; " + \
 			"exit 0 ;") % \
 			(portage._shell_quote(self.pkg_path),
+			tar_options,
 			portage._shell_quote(self.image_dir))]
 
 		SpawnProcess._start(self)
-- 
2.26.2