--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/paxos.rb	Tue Jan 22 18:32:13 2019 +0900
@@ -0,0 +1,50 @@
+node_name_list = ["proposer", "acceptor", "learner"]
+
+def create_nodes(name, node_num)
+  (0..node_num - 1).map { |i|
+    i = name + i.to_s
+  }
+end
+
+
+def print_dot(connections)
+  puts "digraph paxos {"
+  connections.each { |connection|
+    print "\t"
+    print connection[0]
+    print " -> "
+    print connection[1]
+    print ' [label="' + connection[2] + '"]'
+    puts
+  }
+  puts "}"
+end
+
+node_list = Array.new
+node_name_list.each_with_index { |node_name, i|
+    node_num = ARGV.shift
+    while !node_num
+      printf("input %s num : ", node_name)
+      node_num = STDIN.gets.chomp
+    end
+    node_list << create_nodes(node_name, node_num.to_i)
+}
+connections = Array.new
+
+node_list.each_with_index { |nodes1, i|
+  if i == node_name_list.size - 1
+    break
+  end
+  nodes2 = node_list[i+1]
+  nodes1.each_with_index{ |node1, j|
+
+    nodes2.each_with_index{ |node2, k|
+      connections << [node1, node2, node2]
+      if i == 0
+        connections << [node2,node1, node1]
+      end
+    }
+  }
+}
+
+print_dot(connections.sort!)
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