boilerplate for nancy prepare-workload

Author: NikolayS

nancy_prepare_workload.sh

@@ -2,4 +2,48 @@
 
 DEBUG=0
 
-echo "ok!"
+## Get command line params
+while true; do
+  case "$1" in
+    help )
+        echo -e "\033[1mCOMMAND\033[22m
+
+    run
+
+\033[1mDESCRIPTION\033[22m
+
+  Nancy is a member of Postgres.ai's Artificial DBA team responsible for
+  conducting experiments.
+
+  Use 'nancy prepare-workload' to prepare real-world workload based on Postgres
+  logs from any of your real Postgres server.
+
+  WIP! Not finished. More details TBD later.
+
+\033[1mSEE ALSO\033[22m
+    " | less -RFX
+        exit ;;
+    -d | --debug ) DEBUG=1; shift ;;
+    --db-name )
+      DB_NAME="$2"; shift 2 ;;
+    -- )
+      >&2 echo "ERROR: Invalid option '$1'"
+      exit 1
+      break ;;
+    * )
+      if [ "${1:0:2}" == "--" ]; then
+        >&2 echo "ERROR: Invalid option '$1'. Please double-check options."
+        exit 1
+      else
+        INPUT="$1"
+      fi
+      break ;;
+  esac
+done
+
+if [ $DEBUG -eq 1 ]; then
+  echo "debug: ${DEBUG}"
+  echo "input: ${INPUT}"
+  echo "output: ${OUTPUT}"
+  echo "db_name: ${DB_NAME}"
+fi