feat: add parser support for completion

src/commands/completion_autodetect.cr

@@ -0,0 +1,17 @@
+require "./abstract_command"
+
+module GX::Commands
+  class CompletionAutodetect < AbstractCommand
+    def initialize(@config : GX::Config)
+    end
+
+    def execute
+      STDERR.puts "FIXME: Completion auto-detection isn't implemented yet. Please select one of the following: --bash or --zsh"
+      exit(0)
+    end
+
+    def self.handles_mode
+      GX::Types::Mode::CompletionAutodetect
+    end
+  end
+end

src/commands/completion_bash.cr

@@ -0,0 +1,17 @@
+require "./abstract_command"
+
+module GX::Commands
+  class CompletionBash < AbstractCommand
+    def initialize(@config : GX::Config)
+    end
+
+    def execute
+      completion_bash = FileStorage.get("completion.bash")
+      STDOUT.puts completion_bash.gets_to_end
+    end
+
+    def self.handles_mode
+      GX::Types::Mode::CompletionBash
+    end
+  end
+end

src/commands/completion_zsh.cr

@@ -0,0 +1,17 @@
+require "./abstract_command"
+
+module GX::Commands
+  class CompletionZsh < AbstractCommand
+    def initialize(@config : GX::Config)
+    end
+
+    def execute
+      completion_bash = FileStorage.get("completion.zsh")
+      STDOUT.puts completion_bash.gets_to_end
+    end
+
+    def self.handles_mode
+      GX::Types::Mode::CompletionZsh
+    end
+  end
+end

src/parsers/completion_parser.cr

@@ -4,6 +4,7 @@ module GX::Parsers
   class CompletionParser < AbstractParser
     def build(parser, ancestors, config)
       breadcrumbs = ancestors + "completion"
+      # config.mode = Types::Mode::CompletionAutodetect
 
       parser.banner = Utils.usage_line(
         breadcrumbs,
@@ -13,10 +14,12 @@ module GX::Parsers
       parser.separator("\nCompletion commands:")
 
       parser.on("--bash", "Generate bash completion") do |_|
+        config.mode = Types::Mode::CompletionBash
         Log.info { "Set bash completion" }
       end
 
       parser.on("--zsh", "Generate zsh completion") do |_|
+        config.mode = Types::Mode::CompletionZsh
         Log.info { "Set zsh completion" }
       end
 

src/parsers/root_parser.cr

@@ -69,7 +69,10 @@ module GX::Parsers
       # end
 
       parser.on("completion", "Manage completion") do
-        config.mode = Types::Mode::GlobalCompletion
+        config.mode = Types::Mode::GlobalHelp
+        config.help_options = Parsers::Options::HelpOptions.new
+        config.help_options.try(&.parser_snapshot=(parser.dup))
+
         Parsers::CompletionParser.new.build(parser, breadcrumbs, config)
       end
 

static/completion.zsh

@@ -0,0 +1,5 @@
+#!/bin/zsh
+
+# mfm Zsh completion script
+
+