Add simple REPL shell script (#1427)

* add script to work as a minimal REPL, that can be run from different window or machine

scripts/remote-repl.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+PORT="5357"
+HOST="localhost"
+
+function help {
+  echo "Swarm remote REPL"
+  echo
+  echo "This is a shortcut for sending (TBD: and recieving) to Swarm REPL via cURL:"
+  echo "curl --header \"Content-Type: text/plain;charset=utf-8\" --data \"build {}\" $HOST:$PORT/code/run"
+  echo
+  echo "Options:"
+  echo " -p PORT  --port PORT        Specify the port, default is $PORT."
+  echo " -n NAME  --hostaname NAME   Specify the hostaname, default is $HOST."
+  echo " -h       --help             Show this helpful text."
+}
+
+function parse_args {
+  while [[ $# -gt 0 ]]; do
+    case $1 in
+      -p|--port)
+        EXTENSION="$2"
+        shift # past argument
+        shift # past value
+        ;;
+      -n|--hostname)
+        HOST="$2"
+        shift # past argument
+        shift # past value
+        ;;
+      -h|--help)
+        help
+        exit 0
+        ;;
+      *)
+        echo "Unknown argument $1"
+        shift # past argument
+        ;;
+    esac
+  done
+}
+
+function repl {
+  while true; do
+    read -p "> " expr
+    curl --header "Content-Type: text/plain;charset=utf-8" --data "$expr" $HOST:$PORT/code/run
+  done
+}
+
+function main {
+  parse_args
+  repl
+}
+
+main