Rakefile in git-multi-1.0.4 vs Rakefile in git-multi-1.0.5

@@ -1,5 +1,7 @@
+# rubocop:disable Style/HashSyntax
+
 require 'bundler/gem_tasks'
 
 def gemspec
   @gemspec ||= begin
                  # rubocop:disable Security/Eval
@@ -19,31 +21,33 @@
   t.libs << 'test'
   t.libs << 'lib'
   t.test_files = FileList['test/**/*_test.rb']
 end
 
-# rubocop:disable Style/HashSyntax
-
 task :default => :test
 
-task :documentation => 'man/git-multi.txt'
-
 require 'git/multi'
 
-def query_args
+git_workarea  = File.join(Git::Multi::WORKAREA, 'git', 'git')
+documentation = File.join(git_workarea, 'Documentation')
+git_asciidoc  = File.join(documentation, 'git-multi.txt')
 
-  client = Git::Hub.send(:client) # Octokit GitHub API client
-  repo = client.repo('git/git')   # random GitHub repository
+require 'erb'
 
-  # instead of maintaining a list of valid query args in the help-
-  # file, we determine it at runtime... less is more, and all that
-  repo.fields.sort.each_slice(3).map { |foo, bar, qux|
-    format('%-20s %-20s %-20s', foo, bar, qux).rstrip
-  }.join("\n    ")
-end
+file 'man/git-multi.erb' => 'lib/git/multi/version.rb' # version changes
 
-file 'man/git-multi.txt' => 'man/git-multi.erb' do |task|
-  require 'erb'
+file git_asciidoc => 'man/git-multi.erb' do |task|
   File.write(task.name, ERB.new(File.read(task.source)).result)
 end
+
+task :documentation => git_asciidoc do
+  Dir.chdir(documentation) do
+    # use git's documentation approach and build system
+    %x{ make git-multi.1 git-multi.html }
+    FileUtils.cp 'git-multi.1',    Git::Multi::MAN_PAGE
+    FileUtils.cp 'git-multi.html', Git::Multi::HTML_PAGE
+  end
+end
+
+Rake::Task['build'].enhance([:documentation])
 
 # rubocop:enable Style/HashSyntax