[zeus][PATCH 4/7] sanity: Add check for tar older than 1.28

[Armin Kuster <akuster808@gmail.com>]

From: Richard Purdie <richard.purdie@linuxfoundation.org>

Older versions break opkg-build when reproducible builds are enabled.
Rather than trying to be selective based on which features are enabled,
lets just make this a minimum version.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
---
 meta/classes/sanity.bbclass | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 705062b..9d0c784 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -523,6 +523,7 @@ def check_wsl(d):
 
 # Tar version 1.24 and onwards handle overwriting symlinks correctly
 # but earlier versions do not; this needs to work properly for sstate
+# Version 1.28 is needed so opkg-build works correctly when reproducibile builds are enabled
 def check_tar_version(sanity_data):
     from distutils.version import LooseVersion
     import subprocess
@@ -532,7 +533,9 @@ def check_tar_version(sanity_data):
         return "Unable to execute tar --version, exit code %d\n%s\n" % (e.returncode, e.output)
     version = result.split()[3]
     if LooseVersion(version) < LooseVersion("1.24"):
-        return "Your version of tar is older than 1.24 and has bugs which will break builds. Please install a newer version of tar.\n"
+        return "Your version of tar is older than 1.24 and has bugs which will break builds. Please install a newer version of tar (1.28+).\n"
+    if LooseVersion(version) < LooseVersion("1.28"):
+        return "Your version of tar is older than 1.28 and does not have the support needed to enable reproducible builds. Please install a newer version of tar (you could use the projects buildtools-tarball from our last release).\n"
     return None
 
 # We use git parameters and functionality only found in 1.7.8 or later
-- 
2.7.4