[DOC] Add document task

Author: nobu

.gitignore

@@ -3,7 +3,7 @@
 /Gemfile.lock
 /_yardoc/
 /coverage/
-/doc/
+/html/
 /logs/
 /pkg/
 /spec/reports/

Rakefile

@@ -1,5 +1,6 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
+require "rdoc/task"
 
 name = "etc"
 
@@ -21,6 +22,12 @@ Rake::TestTask.new(:test) do |t|
   t.test_files = FileList["test/**/test_*.rb"]
 end
 
+task "rdoc" =>  "changelogs"
+RDoc::Task.new do |rdoc|
+  rdoc.main = "README.md"
+  rdoc.rdoc_files.include("LICENSE.txt", "ChangeLog", "*.md", "lib/**/*.rb", "ext/**/*.c")
+end
+
 task :test => :compile
 
 task :default => :test

etc.gemspec

@@ -25,12 +25,20 @@ Gem::Specification.new do |spec|
   spec.files         = %w[
     LICENSE.txt
     README.md
+    ChangeLog
     ext/etc/constdefs.h
     ext/etc/etc.c
     ext/etc/extconf.rb
     ext/etc/mkconstants.rb
     test/etc/test_etc.rb
   ]
+  spec.rdoc_options = ["--main", "README.md"]
+  spec.extra_rdoc_files = [
+    "LICENSE.txt",
+    "README.md",
+    "ChangeLog",
+    *Dir.glob("logs/ChangeLog-*[^~]", base: __dir__),
+  ]
   spec.bindir        = "exe"
   spec.require_paths = ["lib"]
   spec.extensions    = %w{ext/etc/extconf.rb}