From 4a034b4e77ede4cc9490aecee3140ba0b4ed4d6b Mon Sep 17 00:00:00 2001
From: Brendan Burns <bburns@google.com>
Date: Tue, 23 Sep 2014 11:52:28 -0700
Subject: [PATCH] Clean up scripts to require a minimal gsutil version.

---
 hack/dev-build-and-up.sh |  2 ++
 release/release.sh       | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/hack/dev-build-and-up.sh b/hack/dev-build-and-up.sh
index 62c32666797..403008e9a5f 100755
--- a/hack/dev-build-and-up.sh
+++ b/hack/dev-build-and-up.sh
@@ -17,6 +17,8 @@
 # This script will build a dev release and bring up a new cluster with that
 # release.
 
+set -e
+
 # First build the binaries
 $(dirname $0)/build-go.sh
 if [ "$?" != "0" ]; then
diff --git a/release/release.sh b/release/release.sh
index 2e624a994c2..88a50209fbd 100755
--- a/release/release.sh
+++ b/release/release.sh
@@ -23,6 +23,16 @@
 # exit on any error
 set -e
 
+gsutil_version=$(gsutil version | awk '{split($0,a," "); print a[3]}')
+
+# Warning! uses lexical comparison.  This really only works for major versions, or minor versions up to x.9
+min_gsutil_version="4.0"
+
+if [[ "$gsutil_version" < "$min_gsutil_version" ]]; then
+  echo "gsutil version $min_gsutil_version or greater is required, please run 'gcloud components upgrade'"
+  exit 1
+fi
+
 SCRIPT_DIR=$(CDPATH="" cd $(dirname $0); pwd)
 
 source $SCRIPT_DIR/config.sh