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copied!<p><a href="http://en.wikipedia.org/wiki/Rake_(software)" rel="nofollow noreferrer">Rake</a> uses Rakefiles (cf. Makefiles) defined in pure Ruby, the build utility created by the late <strong>Jim Weirich</strong>. Rule patterns to synthesize implicit tasks are supported and developers can easily specify pre- and post-task dependency chains. Rake includes a library of pre-packaged tasks to make creating Rakefiles easier.</p> <p>Rake uses Ruby's anonymous function blocks to define various tasks, allowing the use of Ruby syntax. It has a library of common tasks: for example, functions to do common file-manipulation tasks and a library to remove compiled files (the "clean" task). Like Make, Rake can also synthesize tasks based on patterns: for example, automatically building a file compilation task based on filename patterns. Rake is now part of the standard library from Ruby version 1.9 onward.</p> <h3>Sample Rake file</h3> <pre><code> namespace :pick do desc "Pick a random user as the winner" task :winner => :environment do puts "Winner: #{pick(User).name}" end desc "Pick a random product as the prize" task :prize => :environment do puts "Prize: #{pick(Product).name}" end desc "Pick a random prize and winner" task :all => [:prize, :winner] def pick(model_class) model_class.find(:first, :order => 'RAND()') end end </code></pre> <h3>Useful links</h3> <ul> <li><a href="https://ruby.github.io/rake/" rel="nofollow noreferrer">Official Rake documentation</a></li> <li><a href="http://lukaszwrobel.pl/blog/rake-tutorial" rel="nofollow noreferrer">Lukasz Wrobel's Rake tutorial</a></li> <li><a href="http://jasonseifer.com/2010/04/06/rake-tutorial" rel="nofollow noreferrer">Jason Seifer's Rake tutorial</a></li> <li><a href="https://github.com/ruby/rake" rel="nofollow noreferrer">Github Link for Rake</a></li> </ul> <h3>Implementation specific tags</h3> <p>You can specify your question by adding the implementation you used as a tag.</p> <ul> <li><a href="/questions/tagged/rake-task" class="post-tag" title="show questions tagged 'rake-task'" rel="tag">rake-task</a></li> <li><a href="/questions/tagged/rakefile" class="post-tag" title="show questions tagged 'rakefile'" rel="tag">rakefile</a></li> </ul>

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