configuration check implemented

patch-control.sh

@@ -23,6 +23,25 @@ function log() {
   echo "$(date): ${*}" >>${logfile}
 }
 
+function check_config() {
+  local missing=()
+  [ -n "${DM_EXE_DIR+x}"  ] || missing+=(DM_EXE_DIR)
+  [ -n "${DM_DATA_DIR+x}" ] || missing+=(DM_DATA_DIR)
+  [ -n "${PC_CONF_DIR+x}" ] || missing+=(PC_CONF_DIR)
+  [ -n "${DAQ_SERVER+x}"  ] || missing+=(DAQ_SERVER)
+  [ -n "${DAQ_USER+x}"    ] || missing+=(DAQ_USER)
+
+  if [ ! ${#missing} -eq 0 ]; then
+    zenity --error \
+           --title "Error (at $(date))" \
+           --text "The following configuration environment variables are missing:\n${missing[*]}\nPlease set them before run again this program."
+
+    return 1
+  fi
+
+  return 0
+}
+
 function put_lock() {
   touch /tmp/pc.lock
 }
@@ -105,6 +124,7 @@ function get_run_number() {
 }
 
 # Script begins here
+check_config || exit 1
 
 test_lock || { zenity --error --text="There is another instance running of this program." --title="Error (at $(date))"; exit 1;}