Added fancyline usage

docker/backend/shard.lock

@@ -20,10 +20,22 @@ shards:
     git: https://github.com/axentro/crystal-argon2.git
     version: 0.1.3
 
+  cute:
+    git: https://github.com/papierkorb/cute.git
+    version: 0.4.0
+
   db:
     git: https://github.com/crystal-lang/crystal-db.git
     version: 0.10.1
 
+  fancyline:
+    git: https://github.com/papierkorb/fancyline.git
+    version: 0.4.1
+
+  future:
+    git: https://github.com/crystal-community/future.cr.git
+    version: 1.0.0
+
   granite:
     git: https://github.com/amberframework/granite.git
     version: 0.23.0

docker/backend/shard.yml

@@ -34,3 +34,5 @@ dependencies:
     github: mrrooijen/commander
   compiled_license:
     github: grimmigerFuchs/compiled_license
+  fancyline:
+    github: Papierkorb/fancyline

docker/backend/src/mw/cli.cr

@@ -1,15 +1,27 @@
 require "commander"
 require "compiled_license"
+require "fancyline"
 
 require "./db"
 
 module MW
-  module Cli
+  module CLI
     extend self
 
+    private FANCY = Fancyline.new
+
+    FANCY.actions.set Fancyline::Key::Control::CtrlC do
+      exit
+    end
+
     private def input(prompt : String) : String
-      print prompt
-      (gets || "").chomp.strip
+      x = FANCY.readline(prompt)
+
+      if x
+        x.chomp.strip
+      else
+        ""
+      end
     end
 
     cli = Commander::Command.new do |cmd|