Easy start script: split shell code into modules

builder/startup/deb/cli-processing.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+debug() {
+  if [ -z "$debug" ]; then return; fi
+
+  echo "$@"
+}
+
+enable_debug() {
+  debug=1
+  log_option="-log *:stderr:100"
+}
+
+kill_vnc_server() {
+  vncserver -kill $display
+}
+
+process_cli_options() {
+  for option in "$@"; do
+    case "$option" in
+      --help)
+        show_help
+        exit
+        ;;
+      -d|--debug)
+        enable_debug
+        ;;
+      -k|--kill)
+        kill_vnc_server
+        exit
+        ;;
+      -s|--select-de)
+        action=select-de-and-start
+        ;;
+      *)
+        echo >&2 "Unsupported argument: $option"
+        exit 1
+    esac
+  done
+}
+
+show_help() {
+  cat >&2 <<-USAGE
+Usage: $(basename "$0") [options]
+  -d, --debug      Debug output
+  -k, --kill       Kill vncserver
+  -s, --select-de  Select desktop environent to run
+  --help           Show this help
+USAGE
+}