refactor: unify management of subcommands

README.md

@@ -74,7 +74,8 @@ git clone https://code.apps.glenux.net/glenux/code-preloader
 cd code-preloader
 make prepare
 make build
-make install
+sudo make install                 # either to install system-wide
+make install PREFIX=$HOME/.local  # or to install as a user
 ```
 
 ## Usage

src/cli.cr

@@ -71,23 +71,24 @@ module CodePreloader
 
       # Writing the configuration content to the file
       File.write(config_file_path, config_content)
-  STDERR.puts "Example configuration file created at: #{config_file_path}"
+      puts "Configuration file created at: #{config_file_path}"
     rescue e : Exception
-      STDERR.puts "An error occurred while creating the configuration file: #{e.message}"
-      exit(1)
-
+      abort("ERROR: Unable to create the configuration file: #{e.message}")
     end
     
     def exec_version
-      abort("FIXME: Not implemented!")
+      puts "#{PROGRAM_NAME} v#{VERSION}"
+      exit(0)
     end
 
     def exec_none
-      abort("No command specified!")
+      STDERR.puts @config.parser
+      abort("ERROR: No command specified!")
     end
 
     def exec_help
-      abort("FIXME: Not implemented!")
+      puts @config.parser
+      exit(0)
     end
 
     def exec_pack(pack_options)

src/config.cr

@@ -41,7 +41,6 @@ module CodePreloader
       @init_options = InitOptions.new
 
       parser.banner = [
-        "#{PROGRAM_NAME} v#{VERSION}",
         "Usage: code-preloader init [options]\n",
         "Global options:"
       ].join("\n")
@@ -81,7 +80,6 @@ module CodePreloader
       @pack_options = PackOptions.new
 
       parser.banner = [
-        "#{PROGRAM_NAME} v#{VERSION}",
         "Usage: code-preloader pack [options] DIR ...\n",
         "Global options:"
       ].join("\n")
@@ -151,19 +149,16 @@ module CodePreloader
     def parse_arguments(args : Array(String))
       @parser = OptionParser.new do |parser|
         parser.banner = [
-          "#{PROGRAM_NAME} v#{VERSION}",
           "Usage: code-preloader <subcommand> [options] [DIR] [...]\n",
           "Global options:"
         ].join("\n")
 
         parser.on("--version", "Show version") do
-          STDOUT.puts "#{PROGRAM_NAME} #{VERSION}"
-          exit(0)
+          @subcommand = Subcommand::Version
         end
 
         parser.on("-h", "--help", "Show this help") do
-          STDERR.puts parser
-          exit
+          @subcommand = Subcommand::Help
         end
 
         parser.separator "\nSubcommands:"