rakefile to easily install git-wiki

Rakefile

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+require 'rubygems'
+require 'git'
+
+$path = File.expand_path(ENV['GIT_WIKI_REPOSITORY'] || File.join(ENV['HOME'], 'wiki'))
+$homepage     = 'Home'
+$ruby         = `which ruby`.chomp
+$pid_file     = '/var/run/git-wiki'
+$server       = 'mongrel'
+$environment  = 'production'
+
+desc 'Install needed submodules.'
+task :submodules do
+  puts '* Downloading sinatra and haml'
+  sh 'git submodule init'
+  sh 'git submodule update'
+end
+
+desc 'Bootstrap your wiki.'
+task :bootstrap => :submodules do
+  unless (Git.open($path) rescue false)
+    puts "* Initializing repository in #{$path}"
+    repository = Git.init($path)
+    File.open(File.join($path, $homepage), 'w') { |f|
+      f << File.read(__FILE__).gsub(/.*__END__/m, '')
+    }
+    repository.add($homepage)
+    repository.commit('Initial commit')
+  end
+end
+
+desc 'Install git-wiki as a daemon and run it at boot.'
+task :daemonize => 'daemon:at_boot' do
+  sh 'sudo /etc/init.d/git-wiki start' do |successful, _|
+    if successful
+      puts '=> Point your browser at http://0.0.0.0:4567 and start to use your wiki!'
+    else
+      'Something went wrong.'
+    end
+  end
+end
+
+namespace :daemon do
+  task :install do
+    File.open('git-wiki.d', 'w') do |f|
+      f << File.read('git-wiki.d.in') % [$ruby, ENV['USER'],
+        Dir.pwd, $path, $pid_file, $environment, $server]
+    end
+    sh 'sudo cp -f git-wiki.d /etc/init.d/git-wiki'
+    sh 'sudo chmod +x /etc/init.d/git-wiki'
+    sh 'rm git-wiki.d'
+  end
+
+  task :at_boot => :install do
+    sh 'sudo /usr/sbin/update-rc.d git-wiki defaults'
+  end
+end
+
+__END__
+## Welcome on git-wiki
+
+Congratulation, you managed to successfuly run git-wiki!
+Feel free to edit this page (double-clik it) and start to use your wiki.
+To access the page listing, hit <kbd>CTRL+L</kbd> and <kbd>CTRL+H</kbd> to go to the homepage.