lib/rubyfox/server/cli.rb in rubyfox-server-2.16.0.1 vs lib/rubyfox/server/cli.rb in rubyfox-server-2.16.0.2

@@ -1,11 +1,11 @@
-require 'thor'
-require 'mime/types'
+require "thor"
+require "mime/types"
 
-require 'rubyfox/server'
-require 'rubyfox/server/version'
-require 'rubyfox/server/environment'
+require "rubyfox/server"
+require "rubyfox/server/version"
+require "rubyfox/server/environment"
 
 module Rubyfox
   module Server
     class CLI < Thor
       include Thor::Actions
@@ -13,23 +13,27 @@
       def self.source_root
         Rubyfox::Server.data_dir
       end
 
       desc "install TARGET_DIR", "Install SmartFox Server into TARGET_DIR"
+
       def install(target_dir)
         if File.exist?(target_dir)
           abort "Directory #{target_dir} already exists!"
         end
 
         directory self.class.source_root, target_dir
       end
 
       desc "configure TARGET_DIR TEMPLATE_DIR", "Configure SmartFox Server in TARGET_DIR via TEMPLATE_DIR"
+
       def configure(target_dir, template_dir)
         template_dir = File.expand_path(template_dir, Dir.pwd)
         target_dir = File.expand_path(target_dir, Dir.pwd)
 
+        verify_version(template_dir)
+
         Dir["#{template_dir}/**/*"].each do |file|
           if File.file?(file)
             part = file.partition(template_dir).last
             target_file = "#{target_dir}/#{part}"
             if file_plain?(file)
@@ -37,21 +41,26 @@
             else
               copy_file file, target_file
             end
           end
         end
+      rescue WrongVersionError => e
+        STDERR.puts e.message
       end
+
       map "config" => :configure
 
       desc "start TARGET_DIR", "Start SmartFox Server in TARGET_DIR"
+
       def start(target_dir)
         inside(target_dir) do
           system "sh ./sfs2x.sh"
         end
       end
 
       desc "version", "Display version of this command"
+
       def version
         puts Rubyfox::Server::VERSION
       end
 
       no_tasks do
@@ -64,8 +73,33 @@
 
       def file_plain?(file)
         types = MIME::Types.type_for(file)
         types.empty? || types.any? { |type| type.media_type == "text" }
       end
+
+      def verify_version(template_dir)
+        filename = "#{template_dir}/version"
+        if File.exist?(filename)
+          expected_version = File.read(filename)
+          version = Rubyfox::Server::VERSION
+
+          unless satisfied_version?(expected_version, version)
+            msg = query = <<~MSG.chomp
+              Configuration failed!
+
+              Your rubyfox-server version: #{version}
+              Needed version: ~>#{expected_version}
+            MSG
+            raise WrongVersionError.new(msg)
+          end
+        end
+      end
+
+      def satisfied_version?(expected_version, version)
+        requirement = Gem::Requirement.new("~> #{expected_version}")
+        requirement.satisfied_by?(Gem::Version.create(version))
+      end
+
+      class WrongVersionError < RuntimeError; end
     end
   end
 end