add exceptions parse for OptionParser

src/passw0rd_manager.cr

@@ -23,27 +23,31 @@ end
 
 VERSION = "0.1.0"
 
-OptionParser.parse do |parser|
-  parser.banner = "Welcome to The Beatles App!"
+begin
+  OptionParser.parse do |parser|
+    parser.banner = "Welcome to The Beatles App!"
 
-  parser.on "-v", "--version", "Show version" do
-    puts "Version #{VERSION}"
-    exit
-  end
-  parser.on "-h", "--help", "Show help" do
-    puts parser
-    exit
-  end
-  parser.on "-g", "--generate-password", "Generate password" do
-    puts Random::Secure.urlsafe_base64(16, padding: false).to_s.colorize(:black).back(:white)
-    puts Random::Secure.urlsafe_base64(16, padding: false).to_s.colorize(:white).back(:red)
-    puts Random::Secure.urlsafe_base64(16, padding: false).to_s.colorize(:white).back(:blue)
-    exit
-  end
-  parser.on "-t", "--unixtime", "Return local timestamp" do
-    puts Time.local.to_unix
-    exit
+    parser.on "-v", "--version", "Show version" do
+      puts "Version #{VERSION}"
+      exit
+    end
+    parser.on "-h", "--help", "Show help" do
+      puts parser
+      exit
+    end
+    parser.on "-g", "--generate-password", "Generate password" do
+      puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:black).back(:white)
+      puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:white).back(:red)
+      puts Random::Secure.urlsafe_base64(16, padding: false).colorize(:white).back(:blue)
+      exit
+    end
+    parser.on "-t", "--unixtime", "Return local timestamp" do
+      puts Time.local.to_unix.colorize(:yellow)
+      exit
+    end
   end
+rescue ex
+  puts ex.message, ""
 end
 
 if !File.exists?("pwd.yml")
@@ -69,13 +73,13 @@ while true
 
   if password_string.to_s == ":q"
     puts "Bye! 👋🏻"
-
-    exit(0)
+    exit
   elsif password_string.to_s == ":h"
     puts "Help:\n-----"
-    puts "\t:s - Return stats"
+    puts ":s - Return stats"
 
   elsif password_string.to_s == ":s"
+    puts "Statictics:\n----------"
     print "Elements: ".colorize(:yellow)
     puts new_array.size