Add shell script linting with shellcheck for better portability

script/make.sh

@@ -11,20 +11,21 @@ DEFAULT_BUNDLES=(
 	test-integration
 )
 
+SCRIPT_DIR="$(cd "$(dirname "${0}")" && pwd -P)"
+
 bundle() {
     local bundle="$1"; shift
-    echo "---> Making bundle: $(basename "$bundle") (in $DEST)"
-    source "script/$bundle" "$@"
+    echo "---> Making bundle: $(basename "$bundle") (in $SCRIPT_DIR)"
+    # shellcheck source=/dev/null
+    source "${SCRIPT_DIR}/$bundle"
 }
 
 if [ $# -lt 1 ]; then
-    bundles=(${DEFAULT_BUNDLES[@]})
+    bundles=${DEFAULT_BUNDLES[*]}
 else
-    bundles=($@)
+    bundles=${*}
 fi
-for bundle in ${bundles[@]}; do
-    export DEST=.
-    ABS_DEST="$(cd "$DEST" && pwd -P)"
+for bundle in ${bundles[*]}; do
     bundle "$bundle"
     echo
 done