Add option to run scripts in debug mode

build/build-plugin.sh

@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/build.sh

@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/cover.sh

@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/dev-env.sh

@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/static-check.sh

@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/test-lua.sh

@@ -14,6 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

build/test.sh

@@ -14,6 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
 set -o errexit
 set -o nounset
 set -o pipefail

test/e2e/wait-for-nginx.sh

@@ -15,7 +15,9 @@
 # limitations under the License.
 
 set -e
-set -x
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"