locopy: Require all arguments

locopy/locopy.rb

@@ -0,0 +1,123 @@
+#!/usr/bin/env ruby
+# This Source Code Form is subject to the terms of the Mozilla Public License,
+# 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
+
+class DatabaseAccess
+  attr_accessor :name, :user, :password
+  attr_reader :host, :socket, :port
+
+  def initialize(wp_config)
+    @name = wp_config['DB_NAME']
+    @user = wp_config['DB_USER']
+    @password = wp_config['DB_PASSWORD']
+
+    self.host = wp_config['DB_HOST']
+  end
+
+  def host=(host)
+    host_part, socket_part = host.split(':')
+    port = socket_part.to_i
+
+    @host = host_part
+    if port == 0
+      @socket = socket_part
+    else
+      @port = port
+    end
+  end
+end
+
+def copy_db(wp_config)
+  table_prefix = wp_config['table_prefix']
+  php_constants = DatabaseAccess.new wp_config
+  keep_option_names = ['siteurl', 'home']
+
+  client = Mysql2::Client.new host: php_constants.host, username: php_constants.user,
+    password: php_constants.password, database: php_constants.name, socket: php_constants.socket
+  statement = client.prepare <<~SQL
+    SELECT option_name, option_value
+    FROM #{table_prefix}options
+    WHERE option_name LIKE ?
+  SQL
+  keep_option_values = keep_option_names.each_with_object({}) do |keep_option_name, accumulator|
+    accumulator[keep_option_name] = statement.execute(keep_option_name).first['option_value']
+    accumulator
+  end
+  keep_option_values = {
+    'siteurl' => 'http://localhost:8083',
+    'home' => 'http://localhost:8083'
+  }
+
+  statement = client.prepare <<~SQL
+    UPDATE #{table_prefix}options
+    SET option_value = ?
+    WHERE option_name LIKE ?
+  SQL
+  keep_option_values.each_pair do |name, value|
+    statement.execute(value, name)
+  end
+end
+
+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