From e4a3e5fdd736ba00631c81debad4efb57e8025da Mon Sep 17 00:00:00 2001
From: Toshio Kuratomi <toshio@fedoraproject.org>
Date: Mon, 26 Jan 2015 09:45:59 -0800
Subject: [PATCH] Prefer gtar to tar

Fixes #702
---
 lib/ansible/modules/files/unarchive.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/ansible/modules/files/unarchive.py b/lib/ansible/modules/files/unarchive.py
index fc2db0e6907..8e9c90fedcc 100644
--- a/lib/ansible/modules/files/unarchive.py
+++ b/lib/ansible/modules/files/unarchive.py
@@ -129,7 +129,11 @@ class TgzArchive(object):
         self.src = src
         self.dest = dest
         self.module = module
-        self.cmd_path = self.module.get_bin_path('tar')
+        # Prefer gtar (GNU tar) as it supports the compression options -zjJ
+        self.cmd_path = self.module.get_bin_path('gtar', None)
+        if not self.cmd_path:
+            # Fallback to tar
+            self.cmd_path = self.module.get_bin_path('tar')
         self.zipflag = 'z'
         self._files_in_archive = []