drake

= DRAKE -- Distributed Rake

A branch of Rake supporting automatic parallelizing of tasks.

== Synopsis

Run up to three tasks in parallel:

% drake -j3

Run as many tasks in parallel as the dependencies allow:

% drake -j

== Installation

% gem install drake

== Notes

Drake is fully compatible with Rake. The code base is identical to that of Rake except for the addition of the -j option.

For the purposes of this documentation, the 'rake' and 'drake' commands are interchangeable. The drake gem will install the drake executable. On your system you may alias or link drake to rake if desired.

For more on parallelization with -j, see parallel.rdoc[http://quix.github.com/rake/files/doc/parallel_rdoc.html].

== Links

• Home: http://quix.github.com/rake
• Feature Requests, Bug Reports: http://github.com/quix/rake/issues
• Repository: http://github.com/quix/rake

== Author

• James M. Lawrence [e-mail]

== License

Copyright (c) 2003-2010 Jim Weirich

Copyright (c) 2008-2011 James M. Lawrence

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

= RAKE -- Ruby Make -- mainline branch

Supporting Rake version: 0.8.7.

This package contains Rake, a simple ruby build program with capabilities similar to make.

Rake has the following features:

• Rakefiles (rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?)

• Users can specify tasks with prerequisites.

• Rake supports rule patterns to synthesize implicit tasks.

• Flexible FileLists that act like arrays but know about manipulating file names and paths.

• A library of prepackaged tasks to make building rakefiles easier. For example, tasks for building tarballs, gems and RDoc output are provided.

• Supports parallel execution of tasks.

== Installation

=== Gem Installation

Download and install rake with the following.

gem install rake

=== Normal Installation

You can download the source tarball of the latest version of Rake from

• http://rubyforge.org/project/showfiles.php?group_id=50

Extract the tarball and run

% ruby install.rb

from its distribution directory.

== Usage

=== Simple Example

First, you must write a "Rakefile" file which contains the build rules. Here's a simple example:

task :default => [:test]

task :test do ruby "test/unittest.rb" end

This Rakefile has two tasks:

• A task named "test", which - upon invocation - will run a unit test file in Ruby.
• A task named "default". This task does nothing by itself, but it has exactly one dependency, namely the "test" task. Invoking the "default" task will cause Rake to invoke the "test" task as well.

Running the "rake" command without any options will cause it to run the "default" task in the Rakefile:

% ls Rakefile test/ % rake (in /home/some_user/Projects/rake) ruby test/unittest.rb ....unit test output here...

Type "rake --help" for all available options.

=== More Information

• For details on Rake's command-line invocation, read doc/command_line_usage.rdoc[http://rake.rubyforge.org/files/doc/command_line_usage_rdoc.html]
• For details on writing Rakefiles, see doc/rakefile.rdoc[http://rake.rubyforge.org/files/doc/rakefile_rdoc.html].
• For the original announcement of Rake, see doc/rational.rdoc[http://rake.rubyforge.org/files/doc/rational_rdoc.html].
• For a glossary of terms, see doc/glossary.rdoc[http://rake.rubyforge.org/files/doc/glossary_rdoc.html].

== Development

=== Source Repository

Rake is currently hosted at github. The github web page is http://github.com/jimweirich/rake. The public git clone URL is

• git://github.com/jimweirich/rake.git

=== Running the Rake Test Suite

If you wish to run the unit and functional tests that come with Rake:

• Install the 'flexmock' gem

• Install the 'session' gem in order to run the functional tests.

• CD into the top project directory of rake.

• Type one of the following:

  rake # If you have a version of rake installed ruby -Ilib bin/rake # If you do not have a version of rake installed.

=== Issues and Bug Reports

Feature requests and bug reports can be made here

• http://onestepback.org/cgi-bin/bugs.cgi?project=rake

No account is needed for posting requests. Or you can send me an email (at jim dot weirich at gmail dot com)

Issues and bug reports can be tracked here:

• http://www.pivotaltracker.com/projects/28469

== Online Resources

=== Rake References

• Rake Documentation Home: http://docs.rubyrake.org
• Rake Project Page: http://rubyforge.org/projects/rake
• Rake API Documents: http://rake.rubyforge.org
• Rake Source Code Repo: http://github.com/jimweirich/rake
• Rake Git Repo Clone URL: git://github.com/jimweirich/rake.git
• Rake Issue Tracking: http://www.pivotaltracker.com/projects/28469
• Rake Bug Reports: http://onestepback.org/cgi-bin/bugs.cgi?project=rake

=== Presentations and Articles about Rake

• Jim Weirich's 2003 RubyConf presentation: http://onestepback.org/articles/buildingwithrake/
• Martin Fowler's article on Rake: http://martinfowler.com/articles/rake.html

== Other Make Reinvisionings ...

Rake is a late entry in the make replacement field. Here are links to other projects with similar (and not so similar) goals.

• http://directory.fsf.org/bras.html -- Bras, one of earliest implementations of "make in a scripting language".
• http://www.a-a-p.org -- Make in Python
• http://www.aromatic.com/tools/jam.txt -- JAM, Java Automated Make
• http://ant.apache.org -- The Ant project
• http://ppt.perl.org/commands/make/index.html -- Make from the Perl Power Tools implementation.
• http://search.cpan.org/search?query=PerlBuildSystem -- The Perl Build System
• http://make.rubyforge.org -- Rant, another Ruby make tool.

== Credits

[Ryan Dlugosz] For the initial conversation that sparked Rake.

[[e-mail]] For the initial patch for rule support.

[Tilman Sauerbeck [e-mail]] For the recursive rule patch.

== License

Rake is available under an MIT-style license.

:include: MIT-LICENSE

== Support

The Rake homepage is http://rake.rubyforge.org. You can find the Rake RubyForge page at http://rubyforge.org/projects/rake.

Feel free to submit commits or feature requests. If you send a patch, remember to update the corresponding unit tests. In fact, I prefer new feature to be submitted in the form of new unit tests.

For other information, feel free to ask on the ruby-talk mailing list (which is mirrored to comp.lang.ruby) or contact jim dot weirich at gmail.com.

---

= Other stuff

Author:: Jim Weirich [e-mail] Requires:: Ruby 1.8.0 or later License:: Copyright 2003-2008 by Jim Weirich. Released under an MIT-style license. See the LICENSE file included in the distribution.

== Warranty

This software is provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties of merchantibility and fitness for a particular purpose.