Update node-red-install.sh

unpriv/node-red-install.sh

@@ -1,4 +1,50 @@
 #!/usr/bin/env bash
+set -o errexit
+set -o errtrace
+set -o nounset
+set -o pipefail
+shopt -s expand_aliases
+alias die='EXIT=$? LINE=$LINENO error_exit'
+trap die ERR
+trap cleanup EXIT
+
+function error_exit() {
+  trap - ERR
+  local DEFAULT='Unknown failure occured.'
+  local REASON="\e[97m${1:-$DEFAULT}\e[39m"
+  local FLAG="\e[91m[ERROR] \e[93m$EXIT@$LINE"
+  msg "$FLAG $REASON"
+  [ ! -z ${CTID-} ] && cleanup_ctid
+  exit $EXIT
+}
+function warn() {
+  local REASON="\e[97m$1\e[39m"
+  local FLAG="\e[93m[WARNING]\e[39m"
+  msg "$FLAG $REASON"
+}
+function info() {
+  local REASON="$1"
+  local FLAG="\e[36m[INFO]\e[39m"
+  msg "$FLAG $REASON"
+}
+function msg() {
+  local TEXT="$1"
+  echo -e "$TEXT"
+}
+function cleanup_ctid() {
+  if $(pct status $CTID &>/dev/null); then
+    if [ "$(pct status $CTID | awk '{print $2}')" == "running" ]; then
+      pct stop $CTID
+    fi
+    pct destroy $CTID
+  elif [ "$(pvesm list $STORAGE --vmid $CTID)" != "" ]; then
+    pvesm free $ROOTFS
+  fi
+}
+function cleanup() {
+  popd >/dev/null
+  rm -rf $TEMP_DIR
+}
 CROSS='\033[1;31m\xE2\x9D\x8C\033[0m'
 RD=`echo "\033[01;31m"`
 BL=`echo "\033[36m"`