Refactor generate_huffman_table task

.rubocop.yml

@@ -10,7 +10,7 @@ AllCops:
 
 Layout/IndentHeredoc:
   Exclude:
-    - 'lib/tasks/generate_huffman_table.rb'
+    - 'tasks/generate_huffman_table.rb'
     - 'example/*'
 
 Metrics/LineLength:

.rubocop_todo.yml

@@ -60,7 +60,7 @@ Style/Documentation:
     - 'test/**/*'
     - 'example/helper.rb'
     - 'example/upgrade_server.rb'
-    - 'lib/tasks/generate_huffman_table.rb'
+    - 'tasks/generate_huffman_table.rb'
 
 # Offense count: 3
 # Cop supports --auto-correct.

Rakefile

@@ -3,7 +3,8 @@ require 'rspec/core/rake_task'
 require 'rubocop/rake_task'
 require 'yard'
 require 'open3'
-require_relative 'lib/tasks/generate_huffman_table'
+
+require_relative 'tasks/generate_huffman_table'
 
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.exclude_pattern = './spec/hpack_test_spec.rb'

lib/tasks/generate_huffman_table.rb → tasks/generate_huffman_table.rb

@@ -1,11 +1,12 @@
+require_relative '../lib/http/2/huffman'
+
+# TODO: Currently, regenerating this table will produce something different from
+# the table shipped with this gem. It is however stable.
 desc 'Generate Huffman precompiled table in huffman_statemachine.rb'
-task :generate_table do
+task :generate_huffman_table do
   HuffmanTable::Node.generate_state_table
 end
 
-require_relative '../http/2/huffman'
-
-# @private
 module HuffmanTable
   BITS_AT_ONCE = HTTP2::Header::Huffman::BITS_AT_ONCE
   EOS          = 256
@@ -102,7 +103,7 @@ def self.generate_state_table
         id += 1
       end
 
-      File.open(File.expand_path('../http/2/huffman_statemachine.rb', File.dirname(__FILE__)), 'w') do |f|
+      File.open(File.expand_path('../lib/http/2/huffman_statemachine.rb', File.dirname(__FILE__)), 'w') do |f|
         f.print <<HEADER
 # Machine generated Huffman decoder state machine.
 # DO NOT EDIT THIS FILE.