Merge pull request #155 from moreati/bash-strict

build: Fail loudly if bash variables are unset, or a pipeline errors

scripts/build.sh

@@ -1,4 +1,8 @@
-#!/bin/bash -e
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
 
 # Ted: contact me when you make any changes
 

scripts/build_image.sh

@@ -1,4 +1,9 @@
-#!/bin/bash -e
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
 SRC_DIR="$(dirname "${BASH_SOURCE[0]}")"
 export GOPATH="$SRC_DIR/.build_image_gopath"
 WORKPREFIX="$GOPATH/src/github.com/ava-labs/"

scripts/build_test.sh

@@ -1,4 +1,8 @@
-#!/bin/bash -e
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
 
 # Ted: contact me when you make any changes