commit eaa15dea662a978d246f5f99321215a7f08416c8
author Brock Noland <brock@phdata.io> Sun Aug 07 15:58:54 2016 -0500
committer Todd Lipcon <todd@apache.org> Mon Aug 08 19:09:18 2016 +0000
tree ca2e371bc061761eadb15144792aa1fd2b4402c7
parent d60923c910a105be42026accdef786e1d7046ef8

build: Make 'download-thirdparty.sh' resilient to failure

Many contributors work at home on flaky internet connections. This
change does two things:

 - Use gtar on Mac, if available, as I've found it more resilient to
   failures than bsdtar. For example, I just spent 20 minutes debugging
   a build failure in cmake which was due to a truncated tar.

 - Exit if the script doesn't successfully extract, currently a warning
   prefixed with "Error" is logged but the process is left to fail with
   some unknown error later on

Change-Id: Ied07d236b1c9cd2eb78aef7ad372f8d835e09782
Reviewed-on: http://gerrit.cloudera.org:8080/3857
Tested-by: Kudu Jenkins
Reviewed-by: Todd Lipcon <todd@apache.org>