locopy: Require all arguments

locopy/Gemfile

@@ -1,8 +0,0 @@
-# frozen_string_literal: true
-
-source 'https://rubygems.org'
-
-git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
-
-gem 'mysql2', '~> 0.5'
-gem 'optparse', '~> 0.8.0'

locopy/Gemfile.lock

@@ -1,18 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    bigdecimal (3.3.1)
-    mysql2 (0.5.7)
-      bigdecimal
-    optparse (0.8.0)
-
-PLATFORMS
-  arm64-darwin-24
-  x86_64-linux
-
-DEPENDENCIES
-  mysql2 (~> 0.5)
-  optparse (~> 0.8.0)
-
-BUNDLED WITH
-   2.6.9

locopy/locopy.rb

@@ -3,35 +3,16 @@
 # v. 2.0. If a copy of the MPL was not distributed with this file, You can
 # obtain one at https://mozilla.org/MPL/2.0/.
 
+# frozen_string_literal: true
+
 require 'pathname'
 require 'mysql2'
 require 'optparse'
 require 'json'
+require 'term/ansicolor'
 
 # Tool for easy updating a local copy of a website
 
-arguments = {}
-option_parser = OptionParser.new do |options|
-  options.banner = "Usage: #{File.basename $0} [OPTIONS] (wordpress)"
-
-  options.on '--root=ROOT', 'Website configuration directory' do |option|
-    arguments[:root] = Pathname.new option
-  end
-  options.on '--dump=DUMP', 'Database file' do |option|
-    arguments[:root] = Pathname.new option
-  end
-end
-
-option_parser.parse!
-
-# Read arguments
-while argument = ARGV.shift do
-  case argument
-  when 'wordpress'
-    ENV['CMD'] = argument
-  end
-end
-
 class DatabaseAccess
   attr_accessor :name, :user, :password
   attr_reader :host, :socket, :port
@@ -57,14 +38,7 @@ class DatabaseAccess
   end
 end
 
-wp_settings = Pathname.new('wp-settings.php').realpath
-wp_config = nil
-
-Dir.chdir arguments[:root] do
-  wp_config = JSON.parse `php #{wp_settings}`
-end
-
-def copy_db(root, wp_config)
+def copy_db(wp_config)
   table_prefix = wp_config['table_prefix']
   php_constants = DatabaseAccess.new wp_config
   keep_option_names = ['siteurl', 'home']
@@ -81,8 +55,8 @@ def copy_db(root, wp_config)
     accumulator
   end
   keep_option_values = {
-    "siteurl"=>"http://localhost:8083",
-    "home"=>"http://localhost:8083"
+    'siteurl' => 'http://localhost:8083',
+    'home' => 'http://localhost:8083'
   }
 
   statement = client.prepare <<~SQL
@@ -95,11 +69,55 @@ def copy_db(root, wp_config)
   end
 end
 
-case ENV['CMD']
-when 'wordpress'
-  # Set permissions
-  copy_db(arguments[:root], wp_config)
-else
-  puts option_parser.help
-  exit 1
+class CommandOptions
+  attr_reader :root, :dump
+
+  def []=(key, value)
+    case key
+    when :root
+      @root = Pathname.new value
+    when :dump
+      @dump = Pathname.new value
+    end
+  end
+
+  def valid?
+    !@root.nil? && !@dump.nil?
+  end
+end
+
+def wordpress
+  arguments = CommandOptions.new
+  option_parser = OptionParser.new do |options|
+    options.banner = "Usage: #{File.basename $0} [OPTIONS] (wordpress)"
+
+    options.on '--root=ROOT', 'Website configuration directory'
+    options.on '--dump=DUMP', 'Database file'
+  end
+
+  option_parser.parse!(into: arguments)
+  unless arguments.valid?
+    $stderr.puts option_parser.help
+    exit 2
+  end
+
+  wp_settings = Pathname.new('locopy/wp-settings.php').realpath
+  wp_config = nil
+
+  Dir.chdir arguments.root do
+    wp_config = JSON.parse `php #{wp_settings}`
+  end
+
+  copy_db wp_config
+end
+
+# Check for supported command.
+command = ARGV.shift
+case command
+when 'wordpress'
+  wordpress
+when nil
+  Kernel.abort Term::ANSIColor.red "No command given at the command line."
+else
+  Kernel.abort Term::ANSIColor.red %Q(Unsupported command "#{command}".)
 end