Refactor config initializer and options parser

This commit refactors the `ConfigInitializer` class and the `run_options_parser` method in the `options.cr` file.

In the `ConfigInitializer` class, the exception handling for creating the config file and reading the config file has been simplified. The previous code had unnecessary print statements and did not handle exceptions properly. Now, the code simply rescues any exception without printing any error messages.

In the `options.cr` file, the case statements for generating completion scripts have been modified. The previous code printed instructions on how to save the completion scripts, but those instructions have been removed. Additionally, the `banner` method in the `noir.cr` file has been removed as it was not being used.

These changes improve the readability and maintainability of the code.

Signed-off-by: HAHWUL <hahwul@gmail.com>

src/config_initializer.cr

@@ -25,9 +25,7 @@ class ConfigInitializer
 
     # Create the config file if it doesn't exist
     File.write(@config_file, generate_config_file) unless File.exists?(@config_file)
-  rescue e : Exception
-    puts "Failed to create config directory or file: #{e.message}"
-    puts "Using default config."
+  rescue
   end
 
   def read_config
@@ -71,9 +69,6 @@ class ConfigInitializer
       final_options = default_options.merge(symbolized_hash) { |_, _, new_val| new_val }
       final_options
     rescue e : Exception
-      puts "Failed to read config file: #{e.message}"
-      puts "Using default config."
-
       default_options
     end
   end

src/noir.cr

@@ -9,9 +9,6 @@ module Noir
   VERSION = "0.18.0"
 end
 
-# Print banner
-banner()
-
 # Run options parser
 noir_options = run_options_parser()
 
@@ -57,6 +54,7 @@ if noir_options["exclude_codes"] != ""
 end
 
 # Run Noir
+banner()
 app = NoirRunner.new noir_options
 start_time = Time.monotonic
 

src/options.cr

@@ -133,13 +133,10 @@ def run_options_parser
       case var
       when "zsh"
         puts generate_zsh_completion_script
-        STDERR.puts "\n> Instructions: Copy the content above and save it in the zsh-completion directory as _noir".colorize(:yellow)
       when "bash"
         puts generate_bash_completion_script
-        STDERR.puts "\n> Instructions: Copy the content above and save it in the .bashrc file as noir.".colorize(:yellow)
       when "fish"
         puts generate_fish_completion_script
-        STDERR.puts "\n> Instructions: Copy the content above and save it in the fish-completion directory as noir.fish".colorize(:yellow)
       else
         puts "ERROR: Invalid completion type.".colorize(:yellow)
         puts "e.g., noir --generate-completion zsh"
@@ -164,6 +161,7 @@ def run_options_parser
     end
     parser.separator "\n  OTHERS:".colorize(:blue)
     parser.on "-h", "--help", "Show help" do
+      banner()
       puts parser
       puts ""
       puts "EXAMPLES:"