Starting implementation of RabbitMQ in Action Ch. 02 exercises in JRuby

sylvilagus/jruby/Rakefile

@@ -1,24 +1,34 @@
 require 'open-uri'
 
+RMQ_URI_BASE = 'http://www.rabbitmq.com/releases/rabbitmq-java-client'
+RMQV = '2.8.7'
+
 directory './tmp'
 
-file './tmp/rabbitmq-java-client-bin-2.8.7.tar.gz' => ['./tmp'] do |f|
-  open('http://www.rabbitmq.com/releases/rabbitmq-java-client/v2.8.7/rabbitmq-java-client-bin-2.8.7.tar.gz') do |f|
+file "./tmp/rabbitmq-java-client-bin-#{RMQV}.tar.gz" => ['./tmp'] do |f|
+  puts "*** Downloading tarball"
+  open("#{RMQ_URI_BASE}/v#{RMQV}/rabbitmq-java-client-bin-#{RMQV}.tar.gz") do |f|
     open('./tmp/rabbitmq-java-client-bin.tar.gz', 'w') do |out|
       out.write(f.read)
     end
   end
 end
 
-file './tmp/rabbitmq-java-client-bin-2.8.7' => ['./tmp/rabbitmq-java-client-bin-2.8.7.tar.gz'] do
+file "./tmp/rabbitmq-java-client-bin-#{RMQV}/rabbitmq-client.jar" =>
+    ["./tmp/rabbitmq-java-client-bin-#{RMQV}.tar.gz"] do
+  puts "*** Extracting tarball"
   Dir.chdir('./tmp') do
     `tar xzvf rabbitmq-java-client-bin.tar.gz`
+    puts "*** Extracted, exit code = #{$?}"
   end
 end
 
-file './lib/java/rabbitmq-client.jar' => ['./tmp/rabbitmq-java-client-bin-2.8.7'] do
-  Dir['./tmp/rabbitmq-java-client-bin-2.8.7/*.jar'].each do |jar|
-    FileUtils.mv(jar, './lib/java', :verbose => true)
+file './lib/java/rabbitmq-client.jar' =>
+    ["./tmp/rabbitmq-java-client-bin-#{RMQV}/rabbitmq-client.jar"] do
+  puts "*** Copying jars"
+  Dir["./tmp/rabbitmq-java-client-bin-#{RMQV}/*.jar"].each do |jar|
+    puts "*** Copying #{jar} to ./lib/java"
+    FileUtils.cp(jar, './lib/java', :verbose => true)
   end
 end